Vortex Meter Forbes Marshall VFM 7700 Manual

Installation andoperatinginstructions

VFM 7700

Vortex Flow Meter

CONTENTS

1. Vortex Flowmeter Measuring Principle 1/1

2. System Installation & Startup 2/1-2/7

3. Vortex Flowmeter 3/1-3/2

4. Operation of Signel Converter 4/1-4/3

5. Description of keys 5/1-5/2

6. Program Function for various versions 6/1-6/24

7. Description of Program Menu Functions 7/1-7/5

8. Technical Data 8/1-8/10

9. Dimension & Weight 9/1-9/5

10. Vortex Flowmeter Field version interconnection details 10/1-10/5

11. Functional Checks 11/1-11/3

12. Trouble Shooting 12/1-12/2

13. Addendum 13/1-13/9

14. Do & Don’ts

0/1

1. Measuring Principle

The Vortex flowmeter is used for measuring the flow velocity of fluids in pipelines. The measuringprinciple is based on the development of a Karman Vortex shedding street in the wake of a bodybuilt into the pipeline. In theory, this process enables measurements to be carried out in turbulentflows with a Reynolds number Re>3000, but linear measurements are only possible whereRe>20,000.

The periodic shedding of eddies occurs first from one side and then from the other side of a bluffbody (Vortex-shedding body) installed perpendicular to the pipe axis. Vortex shedding generates aso-called “Karman Vortex Street” with alternating pressure conditions whose frequency f isproportional to the flow velocity v. The non-dimentional Strouhal number S (primary head constant)describes the relationship between Vortex shedding frequency F (in Hz) width b of the body, andmean flow velocity v (in m/s)

F = b

vS *

The flexural vibration of the Vortex-shedding body is picked up in the primary head via sensors andanalysed in the signal converter. In the case of the gaseous, flowing media, the vibration frequencyranges between 10 and 7000 Hz.

To permit the mass rate of flow to be calculated from the volume rate of flow, either the mediumpressure and the temperature or the medium density at the installation location of the flowmetermust be known factors.

Karman Vortex Street

1/1

2. System installation and Start-up

2.1 Description

The Forbes Marshall Vortex flowmeter operates on the Karman Vortex street principle to measure

the volumetric flow rate of gases/steam and liquids. VORTEX FLOW METER computes the

normalized volumetric and mass flow rates from the operating pressure and temperature values,or from the density values. The temperature sensor is standard to provide an online T.

Items included with the shipment• Compact Vortex flowmeter.

• Installation and operating instructions.

• Mounting bolts, washers and nuts.

• Optional upstream and downstream pipes.

• Programming chart indicating the factory configuration settings.• Gaskets between the primary head and the pipeline

• Bar Magnet

Provided by the customer• All cables for the electrical connections.

2. 2 Installation in the pipeline

2.2.1 General

1. Flow direction and meter position• The flow must always be in the direction of the arrow, bluff side of the Vortex-shedding body

facing the incoming flow i.e. the upstream side.• Vertical pipe run: upward flow direction.• Horizontal pipe run: see below

2. Difference between inside diameter of primary head and pipelineDN Meter size of the primary head in mm or inchesΦ Inside diameter of primary head in mm or inches

2/1

∆Φ Max. allowable difference between the inside diameters of the primary head and the pipeline

Size φφφφφ ∆φ∆φ∆φ∆φ∆φ Size φφφφφ ∆φ∆φ∆φ∆φ∆φDN mm mm DN mm mm

(mm) (inch) (inch) (inch) (inch) (inch)

10 12.6 0.4 3/8" 12.6 0.4(0.50) (0.016) (0.50) (0.016)

15 14.9 0.4 1/2" 14.9 0.4(0.59) (0.016) (0.59) (0.016)

20 20.9 0.4 3/4" 20.9 0.4(0.82) (0.016) (0.82) (0.016)

25 28.5 0.4 1" 26.7 0.4(1.12) (0.016) (1.05) (0.016)

40 43.1 0.4 1/5" 40.9 0.4(1.70) (0.016) (1.61) (0.016)

50 54.5 0.6 2" 52.6 0.6(2.15) (0.024) (2.07) (0.024)

80 82.5 0.6 3" 78 0.6(3.25) (0.024) (3.07) (0.024)

100 107.1 0.6 4" 102.4 0.6(4.22) (0.024) (4.03) (0.024)

150 159.3 0.8 6" 154.2 0.8(6.27) (0.031) (6.07) (0.031)

200 206.5 1 8" 202.7 1(8.13) (0.039) (7.98) (0.039)

Ensure that the bore of the locating pipes are smooth and without deposits or scaling of thewelding beads.

3. Straight, unimpeded inlet and outlet runs D=Meter size (Nominal Dia. DN)

2/2

INLET OUTLET

With a flow straightener, the inlet pipe length may be halved. For e.g. for a control valve, the inletlength is 25D instead of 50D. The minimum inlet pipe length including the flow straightner mustalways be 12D.

4. Pipe vibration

Pipe vibration caused, for example, by the action of pumps, valves, etc. will falsify measurementsparticularly at low flow velocities. Support the pipeline on both sides of the flowmeter in the directionperpendicular to both the pipeline and the bluff body axis.

The pipe vibration limit is 0.2g_peak-to-peak up to 8-500 Hz crossover frequency (which equals0.75 mm)

5. Pipeline along a wall

Wherever possible, the distance between the pipe centerline and the wall should be greater than0.5 m (20”). If it is less then first connect all the cables to the terminals in the connection compartment(power supply and outputs) and run them via an intermediate connection box (also see Section 3)before installing the flowmeter.

6. Orientation

• Turn the display board through ±90º or 180º to obtain a horizontal positioning of the display.

• Turn the signal converter housing through ±90º should that be more suitable for the location ofthe installation.

7. State of medium

• Ensure a single-phase flow. Liquid droplets in the gas/vapour, solid particles in the gas/liquid,and gas bubbles in the liquid are not permitted.

In liquid applications, for e.g. water, to prevent cavitation, the minimum D/S pressure is given bythe relation:

Pds(bar_g) > =(2.9*DP) + (1.3*Ps)-1.013

where

DP= pr. drop of VORTEX FLOW METER in Bar from the sizing program Ps=Sat.pr. in Bar atthe operating temperature

• In case of steam or compressed gas, a moisture separator may be used 50D upstream of themeter if the dryness fraction is less than 95%.

• For any fluid, a filter or strainer may be used to remove the solid particles. This is especiallyimportant for meter sizes below 1” where a filter or a strainer is a must.

2/3

INLET OUTLET

2.2.2 Sandwich type to DIN19205/ANSI

• Meter sizes DN 25, 40, 50, 80, 100 and 150 (1” to 6”)

• Pipe flanges(Pressure ratings

to EN 1092-1: DN 25/PN 40, 100; DN 40/PN 40, 100;DN 50/PN 40, 63, 100; DN 80/PN 40, 63, 100;DN 100/PN 16, 40, 63 and DN 150/PN 16, 40to ANSI: 1” to 6”/ # 150, 300 SORF)

• The gasket’s inside diameter must be greater than the inside diameter of the primary head. Fore.g. use flat gaskets to DIN 2690. The gaskets must not project into the effective pipe cross-sectional area.

• Bolts, nuts and washers are supplied.

• Check the flange connections for leak-tightness after the flowmeter installation.

2/4

Installation in Horizontal Pipe Run

Installation in Vertical Pipe Run

Assembly Diagram of Sandwich Units

2.2.4 Temperature measurements

The VORTEX FLOW METER is always supplied with a temperature sensor. This sensor is RTD(PT1000 type) and is located within the Vortex bluff body. See the figure given for location of thetemperature sensor. This sensor provides an accurate measurement of the temperature of themedium at the Vortex sensor.

The flowmeter will continuously measure the medium temperature:

• To display the medium temperature

• To provide an online T compensation for the mass and the normalized flow computations

• To monitor whether the medium temperature remains within the user specified operatingtemperature limits

2.2.3 Flanged type to EN 1092-1/ANSI B 16.5(SCH40)

• Meter sizes DN 10, 15, 20, 25, 40, 50, 80 100, 150 and 200 (3/8” to 8”)

• Pipe flangesto EN 1092-1: DN 25/PN 40, 100; DN 40/PN 40, 100;DN 50/PN 40, 63, 100; DN 80/PN 40, 63, 100;DN 100/PN 16, 40, 63; DN 150/PN 16, 40;DN 200/PN 10, 16 andto ANSI: 1/2” to 8”/ # 150, 300 SORF)

Gaskets are supplied by us with flanged units.

• Centre the flowmeter by sight.

• Check the flange connections for leak-tightness after the flowmeter installation.

2/5

2.2.5 Pressure measurement with built-in sensor

VORTEX FLOW SENSOR may be supplied with an optional pressure sensor. This sensor istypically a strain gauge type and located in the primary assembly as shown in the figure below.Thus, the sensor also provides an accurate measurement of the pressure of the process fluid.

The flowmeter will continuously measure the medium pressure:

• To display the medium pressure value.

• To provide an online P&T compensation along withT sensor for mass and normalized volumetric flow computation.

• To monitor whether the medium pressure is within the user-specified operating pressurelimits.

2.3 Electrical connection

2.3.1 Installation location and Cable diameter

Location

• Do not expose the compact flowmeter to direct sunlight. Install a sunshade if necessary.

• Do not expose to intense vibration. If necessary support the pipeline to the left and the right ofthe flowmeter.

• The rotating design of the housing makes it easier to connect the two cables for power and theoutputs to the terminals in the rear terminal box.

Cable diameterTo conform to protection category requirements, observe the following recommendations:• Cable diameter: 8 mm to 13 mm (0.31” to 0.51”)

• Enlarge the inside diameter of the screwed conduit entry by removing the appropriate onionring(s) from the seal, only if the cables have an extremely tight fit.

• Fit blanking plug, M 20, and apply the sealant to the unused cable entries.

• Do not kink the cables at the conduit entries.

• Provide a water drip point (U-bend in the cable).

Conduit Installation, General Wiring considerations• When electrical codes require conduit, it must be installed in such a manner that the meter

connection compartment remains dry at all times.

• For the terminal connections refer convertor instruction & operating manual

2/6

To determine the pressure of the medium (e.g. to feed the pressure value in VORTEX FLOWMETER for an off-line P&T compensation for mass or normalized flow computations), a suitablemeasuring point must be provided near the flowmeter.

Location upstream of flowmeter:Min. distance: 20*DN (DN = meter size)

Location downstream of flowmeter:Min. distance: 5*DN (DN = meter size)

An allowance must be made for the pressure drop in the flowmeter as a correction value foroperating conditions prevailing upstream of the flowmeter.

2.4 Start-up

• Check that the system has been correctly installed as described in Sections 2.

• Before the initial start-up check that the following details on the name plate agree with thedata specified in the report of settings for the signal converter. If not, reprogramming will benecessary. Refer to Convertor manual.

Meter size Fct. 3.1.1K-Factor Fct. 3.1.2

• The flowmeter is ready for service 15 minutes (waiting time) after switching on the powersource. Increase the flow velocity slowly and steadily.

• Avoid abrupt changes in pressure in the pipeline.

• If the process product is steam, condensate may form initially and cause faultymeasurements when the system is started up for the first time.

• When powered, the signal converter normally operates in the measurement mode. The power-on sequence to the measurement mode is as follows:

‘TEST’ is displayed for approx. 3 seconds followed by ‘VORTEX FLOW CONVERTER’ theinstrument type followed by ‘Ver X.Y.Z’ the software version of the instrument.

Then the instrument operates in the measurement mode where it displays the parameter beingmeasured.

2/7

3. VORTEX FLOW METER

The VORTEX FLOW METER is a new generation state-of-the-art signal convertor that is modular indesign and enables users to economically upgrade on site from the minimum basic version to ahigh end version with advanced features. The signal convertor uses a Multiprocessor design withI2 C bus technology for a modular design and easy upgrade ability.

3.1 Basic Features

Modular design 2-wire loop powered convertor 24 V DC supply (4-20 mA) Temperature measurement as standard Online density compensation and mass flow calculations for saturated steam or water 4-20 mA programmable current output Optional pulse output programmable and scalable by user Optional 16x64 dot matrix LCD display with 3 button keypad and magnetic pin programming All measured and calculated parameters such as flow, temperature, mass flow, etc. are fully

programmable. Notch Filter Algorithm for predicting correct Vortex frequency for improved vibration and noise immunity Power-on preamplifier diagnostics User-friendly integer totalizer Simple single level user-friendly menu Compatible with all existing flow heads Optional separated version available HART COMPATIBLE.

3.2 Connection Diagram

Connection to loop power supply

In case of functional extra low voltages (24 V DC), protective separation in conformity withVDE 400 Part 410, or an equivalent national standard, must be ensured.

Ensure that the screw thread of the round cover on the terminal box is well greased at alltimes.

Connection to power - VORTEX FLOW METER

3/1

-Pout

++24v

-I Loop

++ 24v

4

3

2

1

Current and pulse outputs are galvanically isolated and can, therefore, be simultaneouslyconnected to a receiver instrument which is grounded or separately connected to two receiverinstruments.

Ensure that the 24 V, 4-20 mA loop is grounded at one point only (i.e. either at the input of thesignal convertor or at the input of the indicator, or at the output of the power supply). Do notground the loop at more than one point.

3.2.1 Current Output

The current output is galvanically isolated from the pulse output and sensors.

The maximum load at terms.

Max. load in RB = UB -- 12 V

< 1200 Ω

3.2.2 Pulse Output

The pulse output is galvanically isolated

Pulse output is passive. The maximum frequency is 0.5 Hz only. The conversion factor can beset in Fct. 1.4.1 Function P.

This is an open collector connection for active electronic counters EC or EMC, input voltage is5-36V, max. load current is 100 mA, and the max. collector power is 250 mW.

20 mA

3/2

4. Operation of the signal convertor

4.1 General

4.1.1 Starting up signal convertor

When the power is switched ON to the signal convertor, it displays “TEST”, VFC 097 and “Ver X.Y.Z”and then goes to the measurement mode. In this initial sequence, carries out self diagnostics tocheck the preamplifier section, sensor integrity and then loads the configuration data from thenon-voIatile memory.The first measured parameter displayed is the one being displayed when thepower supply was switched off the last time. It is possible to enter the programming mode bypressing the key.

4.1.2 Measurement Mode

In the measurement mode, the parameters that the convertor measures/computes are shown onthe display in the appropriate units. As per the configuration, the display can be either in the non-cyclic/cyclic mode. In the non-cyclic mode of display, use key to see the next parameter or errormessage on the display. In the cyclic mode, the display shows all the parameters one afteranother, wherein each parameter/ error message is displayed for about 6 seconds.

4.1.3 Error Handling

The convertor can detect errors during the power-on diagnostics as well as when in the normalmeasurement mode.

If one or more errors are present, the vertical bar in the top left corner of the display (in themeasurement mode) starts blinking. If enabled, the error information is shown on the displayinterleaved between the display of two parameters. The first line displays the total number oferrors and the second line displays the error message. Refer to the list of Error Messages.

4.1.4 Programming or menu mode

All the configuration/settings/test functions in the form of a menu function x.x.x are accessible inthe programming mode. The operator can view or alter the present settings, data values by the useof functions available in this mode.

All changes made in the programming mode are stored in the non-volatile memory after exiting themenu and have appropriate effect on the operation of the signal convertor. While being programmed(i.e. while in the menu), the instrument will stop making further measurements and the currentoutput will be frozen to the last value, the pulse output will also stop.

4/1

Error m essages in the m easurem ent mode

Error m essage (display second line)

T y p e Description

NO S IGNAL

LOW FR EQ

LOW FLOW

HIGH FREQ

HlGH FLOW

INV. CONFIG

Corrective action required

Actual flow rate

h igher than q m ax.

Configura tion da ta

in non-volatile m em ory

is not valid .

Check flow ra te q m in else call K rohne M arshall Service . >

Check flow ra te < q max e lse ca ll Forbes Marsha ll Service .

Corrective action depends on app lication p rocess. If the flow

ra te exceeds the m ax. va lue it m ay damage the sensor

physically .

Converter w ill continue to disp lay actual flow rate. However,

accuracy of m easurement m ay suffe r.

Check en tire configura tion again. If erro r persists ca ll Forbes

M arshall S erv ice .

Flow rate lower

than m in im um flow

ra te q m in.

Vortex frequency

too high

Vortex frequency

too low

No s igna l from

the vortex sensor

No flow through the primary or check for any o ther errors during .power-on d iagnostics. If sensor prob lem, con tact Forbes M arshall S erv ice .

AMP FAIL Pre-amplifier section has failed Contact rohne Marshall Service.

CHECK INST Flow signal quality is bad Check that 1) Flow rate>q min if OK. 2) Check for

excessive pipe vibration and upstream flow disturbances.

LOW SIGNAL Vortex signal amplitude too Check that 1) Flow rate>q min if OK contact

low Forbes Marshall Service.

HIGH SIGNAL Vortex sensor signal This occurs in cases of high density medium.

amplitude too high Check 1) Flow rate < qmax, if OK contact Forbes Marshall Service.

LOW.TEMP.PHY. Operating temp. lower than Take corrective action depending on the process.

physical limit

HIGH.TEMP.PHY Operating temp. higher than Take corrective action immediately. Will cause damage to the

physical limit primary as well as to signal convertor!

T.SENS.SHORT Temp. sensor/wires short Indicates a fault in the temperature sensor.

circuit Contact Forbes Marshall Service.

T.SENS.OPEN Temp. sensor open circuit

4/2

4.1.5 Error messages

Checked duringPower on

4.1.6 Operating elements

Caution: To avoid damage to the electronics, be certain that the area around the meter is drybefore removing the electronics compartment cover.

The operating elements are accessible after removing the cover of the electronics sectionusing the special wrench.

Caution: Do not damage the screw thread, never allow dirt to accumulate, and make sure it iswell greased at all times.

Display, first line

Keys for programming the signal convertor, refer to section 5.1 for the functions of the keys.

Magnetic Hall Effect switches

4/3

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5.2 Functionality of keys

The cursor position is indicated by an “inverse video” character.

To start operator control

Measuring mode Operator control mode

Please note when ‘Yes’ is set under the entry code of Fct.3.2.2 then on pressing the key willprompt you to enter the Entry Code 1 which is fixed. Here, the software is modified in such a waythat the key is taken as the first key out of the nine and you have to enter the remaining eight keysin the sequence This will take you to the function level.

To go to the next function

1.

Pressing the key will result in scrolling through all the functions sequentially as given in themenu level chart. Here the right most digit of the function goes on incrementing.

2.

Pressing the key when the middle digit is selected will result in an increment of that second LSB.Logically, the function should go to Fct.1.2.1. However, Functions 1.2.1 up to 1.2.5 do no exist on themenu level chart. Hence, on pressing the key, the function will go directly to Fct.1.2.6

3.

Here pressing the key results in incrementing the left most digit. Logically, the function should goto Fct.2.1.1. However, since Fct.2.1.1 does not exist on the menu level chart, the function will go tothe next function which is Fct.2.1.2

To select the functionTo modify any menu, first make that function available on the display. Then press the key toconfirm the function selected. Next, press the key to enter that function. To scroll through thedifferent options available, use the key. To select the option chosen, press the key. You arethen prompted with the CONT YES/NO. On selecting YES, you will proceed to the next menu level.If you select NO, it will update the data you entered and will go to the measuring mode.

70.00

m3/hr

1.1.1

MEAS_INST.

1.1. 1 1.1.2

MEAS_INST. MAX_FLOW

1.1. 1 1.2. 6

MEAS_INST. ERROR_MSG.

1.1.1 2.1.2

MEAS_INST. I_TEST

5/2

6. Program functions for various versions

6.1 Program Organization and Programming Chart for GAS Ver 7.X.Y.

6/1

Fct. 1.1.1 MEAS_INST

Fct. 1.1.2 M A X _ F L O W

Fct. 1.1.3 MIN_FLOW

Fct. 1.1.4 TIMECONST

Fct. 1.2.6 ERROR_MSG

Fct. 1.2.7 CYCLE_DISP

Fct. 1.3.2 RANGE-I

Fct. 1.4.1 FUNCTION_P

Fct. 2.1.2 T E S T _ I

Fct. 2.1.3 T E S T _ P

Fct. 3.1.1 NOM_DIA

Fct. 3.1.2 K_FACTOR

Fct. 3.2.2 CODE 1

Fct. 3.2.4 LOCATION

Fct. 3.2.5 TOT. VALUE

Fct. 3.2.6 TOT. ON/OFF

Fct. 3.27 POLL ADDRESS

Fct. 3.3.4 SET GAIN

Fct. 3.5.1 FLUID

Fct. 3.5.2 MEDIUM

Fct. 3.5.4 TEMP. OP.

Fct. 3.5.5 PRES. OP.

Fct. 3.5.6 DENS. OP.

Fct. 3.5.7 TEMP. NORM.

Fct. 3.5.8 PRES. NORM.

Fct. 3.5.9 DENS. NORM.

Fct. 3.5.10 % GAS. MIX

Fct. 3.5.11 % REL. HUM.

Fct. 3.6.1 T_SENSOR

Fct. 3.6.2 P_SENSOR

Fct. 3.7.1 P_EXCIT. V

Fct. 3.7.2 P_SEN. P1V1


Fct 3.7.4 EX.P. RANGE

Fct. 3.9.1 FAD UNIT

Fct. 3.9.2 SUCT. TEMP.

Fct. 3.9.3 ATM. PRESS .

Fct. 3.9.4 FIL. P. DROP

Fct. 3.9.5 INLET RH

Fct. 3.9.6 ACTUAL RPM

Fct. 3.9.7 RATED RPM

Fct. 3.9.8 OUTLET RH

ACTUAL DISPLAY

ACCESS

TO

SETTINGS

OR

DATA

POSSIBLE

AT

THIS

LEVEL

ONLY

MEASURING MODE LEVEL FUNCTION LEVEL DATA LEVEL

MenuLevels :-

6.1.1 Program function description

The program functions are given in a numeric order as follows:

• Function number and title

• Description of the function

When you enter any numeric value in the floating point format, the accuracy of viewing any floatingpoint value entered is + 0.003% . The precision of the measured variable depends on the choiceof precision (position of decimal point) while entering the operating value of that parameter.

Fct. 1.1.1 MEAS. INST. measuring instrument type

Set the instrument to measure the volumetric or thenormalized volumetric or the mass flow rate as per the options:

• VOLUME • NORM.VOLUME • MASS

Usually, this function is used once initially. If you need to change the basic measurement type lateron, you should check/reprogram all the flow rate and the totalizer related functions such as -

• MAX.FLOW • MIN.FLOW • FLOW UNITS• TOTAL.UNITS • 4 mA FLOW • 20 mA FLOW• RANGE F • TOT. VALUE Fct. 1.1.2 MAX.FLOW maximum flow rate

Enter the maximum flow rate desired. The max. flow should be within the measuring range for thegiven primary data (3.1.x functions) and the application data (3.5.x functions).

The current output range (4-20 mA) corresponds to the 0% flow (Q0%) and the 100% flow (Q100%)respectively.

If the flow rate exceeds the MAX FLOW, an error HIGH FLOW is annunciated on the display with anerror symbol flashing at the top left corner.

The base units are m3/hr, nm3/hr and kg/hr respectively for Volume, Norm. Volume and Mass. Forunits other than the specified units, replace the base unit with the user unit by changing the literaltext. Also, enter the coefficient of that particular unit with respect to the basic unit depending on themeasuring instrument type that you have selected.

Refer to the formula given:

User Unit *A1 coeff.+A0 offset = Base unit

Example: If the user unit is litre/hr

A1 coeff. = Base unit/ user unit = 1/1000 = 0.001

A0 offset = 0

Fct. 1.1.3 MIN. FLOW minimum flow rate

Enter the minimum flow rate in the same units as for the max.flow above. The min. flow should bewithin the measuring range for the given primary data (3.1.X functions) and the application data(3.5.X functions). If the flow is below the min. flow then an error LOW FLOW is annunciated on thedisplay with an error symbol flashing at the top left corner.

Note: This value cannot be zero for Vortex flowmeters. This value is normally set to the minimumflow rate (determined from the sizing) for the size of the primary used.

6/2

Fct. 1.1.4 TIMECONST. time constant for flow rate

Enter a low-pass filter time constant in seconds to be applied to the flow rate. A value of zeroindicates that the low-pass filter is not to be applied. With this function, it is possible to compromisebetween a steady indication (on the display/current output) and the response time (to flow changes).It should normally be within 0-20 sec. The factory set value is 2 sec. You may increase it if youobserve abnormal fluctuations on display.

Fct. 1.2.6 ERROR MSG. display of error messages

Choose YES so that the error messages appear between the display of parameters in the normalmeasuring mode, otherwise select NO.

Fct. 1.2.7 CYCLE DISP. cyclic/non-cyclic display

YES means the display will cycle automatically. This means a measured parameter is shown inthe selected units for about 6 seconds and then the next parameter in the display cycle is shownfor 6 seconds and so on. NO (non-cyclic display) means the parameter is continuously shown onthe display (to see other parameters or to change setting use the key). You may see errormessages in between the changeover from one parameter to next if error(s) are present and Fct.1.2.6 ERROR MSG. is YES.

Fct. 1.3.2 RANGE I current output range selection

Here one selects one of the three possible range options. To set the current output as 4-20 mAwith/without an error indication on the current output. When a range with a suffix of 22E or 3.55Eis selected then it means that the current output will give 22 mA or 3.55 mA error output if anyerror(s) are present in the instrument. The range options are listed below:• 4-20• 4-20/22E • 4-20/3.55E

Fct. 1.4.1 FUNCTION P Pulse output

Choose YES to make the pulse output active. NO makes the pulse output inactive (0 Hz).

Limits: The max. frequency of the pulse output is 0.5 Hz. To ensure that the pulse output does notexceed 0.5 Hz at max. flow, the coefficient in totalizer units can be adjusted. The pulse output willbe an exact replica of the integer value of the internal totalizer. If the flow rate exceeds in such a waythat the pulse rate exceeds 0.5 Hz then the pulse output will be erratic.

For Example:

For a flow rate of 360 kg/hr, pulses will be 360 pulses/hr. as the pulse output is exact replica ofinteger totalizer. So the freq. of the pulses will be 0.1 Hz. This is within given limits. But for flowrateof 3600 kg/hr., pulses will be 3600 pulses/hr. The freq. becomes 1 Hz. This is not within thespecified limits. In this case, A1 coeffecient should be adjusted in func. 3.2.5 Tot. value. Thisshould be selected such that the freq. of the pulse o/p lies below .5 Hz. If this factor is selected as0.1 then the frequency of the pulse output will become 10 times less. i.e. 0.1 Hz. which lies in givenlimits. Please note that the same factor will get applied to Integer totalizer also.

Fct. 2.1.2 TEST I current output test

Caution: During this test, the current output will change to the test values so appropriate actionsshould be taken depending on how the current output is used.

• 4 mA • 8 mA • 12 mA• 16 mA • 20 mA

Place the current meter in series with the current loop. Selecting any value given above will causethat current to flow so that you can check it on the meter. Select CONT. YES to test other currentvalues or CONT.NO to end. When the menu function finishes, the normal current value dependingon the flow rate and the programming of the current output function will be restored.

6/3

Fct. 2.1.3 TEST P pulse output test

Caution: When this test is initiated, the pulse output will run at the repetitive rate of 0.5003 Hz. So,appropriate actions should be taken depending on how the pulse output is used.

When the menu function finishes, the normal frequency value depending on the flow rate and theprogramming of the frequency output functions will be restored.

Connect the electromechanical counter to the pulse output. (Refer to the connection diagram.)Select CONT.YES to test the frequency value or CONT.NO to end. Selecting CONT.YES, will causethe pulse output to run at 0.5003 Hz.

Fct. 3.1.1 NOMINAL.DIA nominal diameter

Select which DIN/ANSI size primary is used with the instrument from the options listed below. Theoptions available are:

• 10-20 • 25 • 40-50 • 80-200

The sizes under the group are as follows:

10-20 : DN10, ANSI 3/8”DN15, ANSI 1/2”DN20, ANSI 3/4”

25 : DN25, ANSI 1”

40-50 : DN40, ANSI 1.5”DN50, ANSI 2”

80-200 : DN80, ANSI 3”DN100, ANSI 4”DN150, ANSI 6”DN200, ANSI 8”

Fct. 3.1.2 K-FACTOR k-factor of the primary

Enter the primary constant k-factor value. This value is stamped on the instrument label in units ofpulses/m3.

NOM. DIA. LOW LIM. HIGH LIM.

DN 10/ANSI 3/8” 490000 543000DN 15/ANSI 1/2” 290000 330000DN 20/ANSI 3/4” 107000 120000DN 25 42000 46305DN 40 12300 13560DN 50 6065 6687DN 80 1740 1918DN 100 775 854DN 150 240 265DN 200 104 115ANSI 1” 59565 66000ANSI 1.5” 16877 18700ANSI 2” 7942 8800ANSI 3” 2464 2730ANSI 4” 1083 1200ANSI 6” 316 350ANSI 8” 147 163

Fct. 3.2.2 ENTRY.CODE.1 entry code 1 password

Select YES if the password should be checked to access the menu. Use the 9-digit password toprevent configuration changes by an unauthorized person. Answering NO means the password isnot required to enter the menu. Refer to Section 5.2

6/4

Fct. 3.2.4 LOCATION installation location

Enter an alphanumeric string up to 10 characters to describe the location of the installation. Thisinput has no bearing on the performance of the instrument in any way and it merely serves as ameans of identification.

Fct. 3.2.5 TOT.VALUE totalizer value

Here the unit and coefficient of the totalizer can be set. This coeff can also be a scaling factor forthe pulse output and the totalizer value. The totalizer value can be preset using this function. Theinternal totalizer is an integer totalizer and has a fixed roll-over value 4294967295.

This function can also be used to reset the totalizer (to zero). The options available are:

• YES • NO

To reset totalizer: Select RESET YES as a double confirmation. To keep the totalizer unchangedselect RESET NO.

Fct. 3.2.6 TOT. ON/OFF totalizer on/off

Select the option TOT. ON to start/restart the totalizer and select the option TOT. OFF to stop thetotalizer. Stopping the totalizer means the flow will not be accumulated till the time the totalizer isturned on again and the previous value will remain unchanged.

Fct. 3.2.7 POLL ADDRESSEnter Polling Address for HART Communications.

Fct. 3.3.4 SET GAIN Gain setting

The gain of the signal preamplifier can be changed to alter the sensitivity of the Vortex amplifier.The values available are:

• 1 • 1.5 • 2• 3 • 6 • 11• 16

The factory set value is 11 for gases.

Fct. 3.5.1 FLUID fluid type

Select whether the process medium is gas (including air), mixture of gases, wet gas

• GAS • GAS MIX • WET GASThe operating density should be entered for GAS and Wet Gas, where the medium selected is none.

Fct. 3.5.2 MEDIUM process medium

Select the medium from the options given below. If the medium used is not included in the optionlist, select

-NONE-.For all the mediums except -NONE-, the instrument software calculates the density ofthe medium from P&T conditions that is required for meter sizing, mass flow and normalizedflow computations. However, for unsupported medium, the user has to supply the density at theoperating P&T and the density at the normal P&T (latter for the normalized flow only).Options for fluid GAS:

• AIR • AMMONIA • ARGON• I-BUTANE • N-BUTANE • CO• CO2 • ETHANE • ETHYLENE• HEXANE • HYDROGEN • H2S• METHANE • NEON • NITROGEN• OXYGEN • I-PENTANE • N-PENTANE• PROPANE • XENON • -NONE-

(CO is carbon monoxide, CO2 is carbon dioxide, -NONE- is none of the above)

6/5

Options for fluid WET GAS:• AIR • AMMONIA • ARGON• I-BUTANE • N-BUTANE • CO• CO2 • ETHANE • ETHYLENE• HEXANE • HYDROGEN • H2S• METHANE • NEON • NITROGEN• OXYGEN • I-PENTANE • N-PENTANE• PROPANE • XENON • -NONE-

Fct. 3.5.4 TEMP. OPR operating temperature

Enter the mean (average) operating temperature of the medium. This parameter is very importantsince it is involved in the density calculation.

When the temperature sensor is not present, the value given here is used in flow computations forall mediums except NONE. The internal set unit for the temperature is DEG. C. To have some otherunit, all the literal characters, coefficient and offset must be entered.

Example: User unit is Deg.F and base unit is Deg.C.

Referring to the formula given in Function 1.1.2,

Deg.C =0.55 Deg.F –17.77

Therefore, A1 coeff. = 0.55

A0 offset = -17.77

Fct. 3.5.5 PRES. OPR operating pressure

Enter the mean (average) operating pressure of the medium. This parameter is very importantsince it is involved in the density calculation.

The internal set unit for pressure is Pascal. Enter all the characters, coefficients, and offset toobtain other units desired. Refer to the example given in Fct.3.5.4.

Fct. 3.5.6 DENS. OPR. density at operating P&T

Enter the density of the medium at the operating pressure and temperature conditions. The basicunit is Kg/m3. Other units can be programmed using the coefficient in the conversion table.

Fct. 3.5.7 TEMP. NORM normal temperature

Enter the value for the normal/base/reference temperature.

This value is usually 00C or 200C. The unit options for this value are the same as in FCT. 3.5.4

Fct. 3.5.8 PRES. NORM normal pressure

Enter the value for the normal/base/reference pressure. This value is usually 1 atm. The unitoptions for this value are the same as in Fct. 3.5.5

Fct. 3.5.9 DENS.NORM. density at normal P&T

Enter the density of the medium at normal pressure and temperature conditions. The basic unit isKg/m3. Other units can be programmed using the coefficient in the conversion table.

Fct. 3.5.10 %GAS MIX %of gases

Select the components of the gas mixture. Enter the mole fraction percentage of gases presentin the mixture of gases. The list of gases available is given below. For the components notpresent in the mixture, keep the percentages as zero. The sum of the percentages of the gascomponents should be equal to 100 ± 0.1

List of gases for fluid GAS MIX:

• AMMONIA • ARGON • I-BUTANE

6/6

• N-BUTANE • CO • CO2• ETHANE • ETHYLENE • HEXANE• HYDROGEN • H2S • METHANE• NEON • NITROGEN • OXYGEN• I-PENTANE • N-PENTANE • PROPANE• XENON

Fct. 3.5.11 % REL HUM Relative humidity

Enter the relative humidity of the moist gas in the range of zero to hundred.

Fct. 3.6.1 T-SENSOR temperature sensor

Select YES if the temperature sensor is present elseselect NO.

Fct. 3.6.2 P-SENSOR pressure sensor

Here the selection of the internal, or external pressure sensor can be done. The options available are :

• EXTERNAL P• NONE• INTERNAL P

Fct. 3.7.1 P_EXCIT.V

Enter the excitation voltage given to the pressure sensor bridge. This is to make calibration dataindependent of electronics.

Fct. 3.7.2 P_SEN P1V1 calibration point 1

Enter the pressure value (in one of the units same as in Fct. 3.5.5) and the correspondingmillivolt value.


Enter the pressure value (the same unit assumed as in Fct. 3.7.2) and the correspondingmillivolt value.

Fct. 3.7.4 EX. P. RANGE external pressure sensor range.

Enter the external pressure sensor range for 4 mA & 20 mA. The default values are

• 0 AT 4 mA• 6 AT 20 mA

Fct. 3.9.1 FAD UNIT units for FAD

Select the unit for the display of the parameter FAD Volume flow. (FAD flow is vol. flow ascalculated by meter at the suction side of compressor).

• FAD M3/HR • FAD M3/MIN • FAD M3/SEC• FAD L/HR • FAD L/MIN • FAD L/SEC• FAD CUFT/H • FAD CUFT/M • FAD CUFT/S• FAD FT3/H • FAD FT3/M • FAD FT3/S• SPECIAL

Here the selection of the FAD Flow disply can be doneDisplay ON displays whichever unit is selected. OFF No FAD FLOW display

Fct. 3.9.2 SUCT. TEMP. Temp at suction side.

Enter the temperature at suction side.

6/7

Fct. 3.9.3 ATM PRESS. atmospheric pressure.

Enter the atmospheric pressure.

Fct. 3.9.4 FIL. P. DROP Filter Pressure drop

Enter the value of the pressure drop across the filter at the inlet of the compressor. (If there isno such filter installed then keep this value as zero).

Fct. 3.9.5 INLET RH Relative humidity at suction

Enter the relative humidity at the suction side (i.e. ambient air). The units are %RH

Fct. 3.9.6 ACTUAL RPM actual rpm

Enter the measured speed of the compressor motor in RPM.

Fct. 3.9.7 RATED RPM rated rpm

Enter the rated speed of the compressor motor in RPM.

Fct. 3.9.8 OUTLET RH relative humidity operating

Enter the relative humidity at the meter side (i.e. compressor outlet side). Typically this valueis 100%. The units are % RH

6.1.2 VFC with FAD meter

An air compressor sucks in air from the atmosphere and delivers it compressed to the requiredpressure. Since the atmospheric air contains water vapor, what the compressor actually sucks inis a mixture of air and water vapour. Under thse conditions the Free Air Delivery specification of thecompressor is not directly and easily known. Almost all manufacturers specify FAD at standardsuction conditions only. What the user gets to use as eventual plant air or process air needs to befound out and, hence, metered with ease and a reasonable accuracy of at least +1%.

VFM FAD-METER can measure FAD online, compensated for humidity and RPM apart from its useas STD FLOWMETER. The software built into the meter evaluates the FAD automatically online.The menu-driven user-friendly software prompts the user for information like the pressure andrelative humidity, design and actual RPM, and the discharge pressure. The steam tables and thecompressibility data are programmed into the memory as a standard feature. The meter is alsoavailable with an optional pressure sensor which measures the discharge pressure onlineeliminating the need to feed in the value manually.

6/8

6.2 Program Organization and Programming Chart for SAT/SUP STEAM Ver. 6.x.y

6/9



Fct. 1.1.2 MAX_FLOW

Fct. 1.1.3 MIN_FLOW




Fct. 1.3.2 RANGE-I

Fct. 1.3.5 VARIABLE I

Fct. 1.3.7 FS. POWER


Fct. 1.4.4 VARIABLE P

Fct. 2.1.2 TEST_I

Fct. 2.1.3 TEST_P

Fct. 3.1.1 NOM_DIA

Fct. 3.1.2 K_FACTOR

Fct. 3.2.2 CODE 1

Fct. 3.2.4 LOCATION



Fct. 3.2.7 POLL ADDR

Fct. 3.3.4 SET GAIN

Fct. 3.5.1 FLUID

Fct. 3.5.2 MEDIUM

Fct. 3.5.3 SAT. P/T


Fct. 3.5.5 PRES. OP.

Fct. 3.5.7 TEMP. NORM.

Fct. 3.5.8 PRES. NORM.

Fct. 3.6.1 T_SENSOR

Fct. 3.6.2 P_SENSOR

Fct. 3.7.1 P_EXCIT. V



Fct. 3.7.4 EXT.P. RNG

Fct. 3.8.5 DRY. FACT.

Fct. 3.8.6 POWER UNIT

Fct. 3.8.8 ENERGY. UNIT

Fct. 3.8.9 E. TOT. ON

ACTUAL DISPLAY

ACCESS

TO

SETTINGS

OR

DATA

POSSIBLE

AT

THIS

LEVEL

ONLY


MenuLevels :-


The program functions are given in a numeric order as follows:• Function number and title• Description of the function



Set the instrument to measure the volumetric or thenormalized volumetric or the mass flow rate as per the options:

• VOLUME • NORM.VOLUME • MASS


• MAX.FLOW • MIN.FLOW • TOTAL.UNITS • RANGE P • TOT. VALUE

Fct. 1.1.2 MAX.FLOW maximum flow rate


The current output range (4-20 mA) corresponds to the 0% flow (Q0%) and the 100% flow (Q100%)respectively.


The following units are available to choose from depending on the programming of Fct.1.1.1MEAS. INST.

for volumetric flow:• M3/HR • M3/MIN • M3/SEC• LITRE/HR • LITRE/MIN • LITRE/SEC• CUFT/HR • CUFT/MIN • CUFT/SEC• FT3/HR • FT3/MIN • FT3/SEC• CFT/HR • CFT/MIN • CFT/SEC• US GAL/HR • US GAL/MIN • US GAL/SEC• UK GAL/HR • UK GAL/MIN • UK GAL/SEC• SPECIAL

for normalized volumetric flow:• NM3/HR • NM3/MIN • NM3/SEC• NORM.L/HR • NORM.L/MIN • NORM.L/SEC• SFT3/HR • SFT3/MIN • SFT3/SEC• SCFT/HR • SCFT/MIN • SCFT/SEC• SPECIAL

for mass flow:• KG/HR • KG/MIN • KG/SEC• T/HR • T/MIN • T/SEC• LB/HR • LB/MIN • LB/SEC• SPECIALThe base units are m3/hr, nm3/hr and kg/hr respectively for Volume, Norm. Volume and Mass.For units other than the specified units, replace the base unit with the user unit by changing theliteral text. Also, enter the coefficient of that particular unit with respect to the basic unitdepending on the measuring instrument type that you have selected.

6/10





A0 offset = 0









YES means the display will cycle automatically. This means a measured parameter is shown inthe selected units for about 6 seconds and then the next parameter in the display cycle is shown for6 seconds and so on. NO (non-cyclic display) means the parameter is continuously shown on thedisplay (to see other parameters or to change setting use the key). You may see error messages inbetween the changeover from one parameter to next if error(s) are present and Fct. 1.2.6 ERRORMSG. is YES.


Here one selects one of the three possible range options. To set the current output as 4-20 mA

with/without an error indication on the current output. When a range with a suffix of 22E or 3.55E

is selected then it means that the current output will give 22 mA or 3.55 mA error output if any

error(s) are present in the instrument. The range options are listed below:

• 4-20• 4-20/22E • 4-20/3.55E

Fct. 1.3.5 VARIABLE I Current Output selection function

Selects any one of the two options available for the current output.

Options are listed below:

• FLOW• POWER

APPEARS: If the meter type is GROSS HEAT METER

Fct. 1.3.7 FS POWER

Enter the power value at which you want the current output at its maximum 20 mA


6/11

Fct. 1.4.1 FUNCTION P Pulse output

Choose YES to make the pulse output active. NO makes the pulse output inactive (0 Hz).Limits: The max. frequency of the pulse output is 0.5 Hz. To ensure that the pulse output does notexceed 0.5 Hz at max. flow, the coefficient in totalizer units can be adjusted. The pulse output willbe an exact replica of the integer value of the internal totalizer. If the flow rate exceeds in such a waythat the pulse rate exceeds 0.5 Hz then the pulse output will be erratic.

For Example:

For a flow rate of 360 kg/hr, pulses will be 360 pulses/hr. as the pulse output is exact replica ofinteger totalizer. So the freq. of the pulses will be 0.1 Hz. This is within given limits. But for flowrateof 3600 kg/hr., pulses will be 3600 pulses/hr. The freq. becomes 1 Hz. This is not within thespecified limits. In this case, A1 coeffecient should be adjusted in func. 3.2.5 Tot. value. Thisshould be selected such that the freq. of the pulse o/p lies below .5 Hz. If this factor is selected as0.1 then the frequency of the pulse output will become 10 times less. i.e. 0.1 Hz. which lies in givenlimits. Please note that the same factor will get applied to Integer totalizer also.

Fct. 1.4.4 VARIABLE P pulse output selection function.

Selects any one of the two options available for the pulse output

The options are listed below:

• FLOW• POWERAPPEARS: If the meter type is GROSS HEAT METER

Fct. 2.1.2 TEST I current output test

Caution: During this test, the current output will change to the test values so appropriate actionsshould be taken depending on how the current output is used.

• 4 mA • 8 mA • 12 mA

• 16 mA • 20 mA








• 10-20 • 25 • 40-50 • 80-200

The sizes under the group are as follows:

10-20 : DN10, ANSI 3/8”DN15, ANSI 1/2”DN20, ANSI 3/4”

6/12

25 : DN25, ANSI 1”

40-50 : DN40, ANSI 1.5”DN50, ANSI 2”











Here the unit and coefficient of the totalizer can be set. This coeff can also be a scaling factor forthe pulse output and the totalizer value. The totalizer value can be preset using this function. Theinternal totalizer is an integer totalizer and has a fixed roll-over value 4294967295.This function can also be used to reset the totalizer (to zero). The options available are:

• YES • NO




6/13

Fct. 3.2.7 POLL ADDR polling address

Enter the polling address from 0 to 15. This is basically required for HART communication ismultidropping mode.


The gain of the signal preamplifier can be changed to alter the sensitivity of the Vortex amplifier. Thevalues available are:

• 1 • 1.5 • 2• 3 • 6 • 11• 16

The factory set value is 11 for gases.


The only option available is STEAM.

• STEAM


Select the medium from the options given below. For all the mediums, the instrument softwarecalculates the density of the medium from P&T conditions that is required for meter sizing, massflow and normalized flow computations.

Options available are

• SAT STEAM • SUP STEAM

Fct. 3.5.3 SAT. P/T, use saturation P or T

For saturated steam, only one of the operating temperature or pressure is needed for densitycalculation. Select whether you are going to specify the saturation temperature or the pressurefrom the following options:

• SAT. TEMP • SAT.PRES

The actual value of the temperature or the pressure is to be entered under Fct. 3.5.4 TEMP.OPR or Fct. 3.5.5 PRES. OPR.



The option available for units are.

TMEP UNITS

• DEG C • DEG F • KELVIN• SPECIAL

When the temperature sensor is not present, the value given here is used in flow computations forall mediums except NONE. The internal set unit for the temperature is DEG. C. To have some otherunit, all the literal characters, coefficient and offset must be entered.



6/14

Deg.C =0.55 Deg.F –17.77


A0 offset = -17.77

Here the selection of the Temperature Display can be done. The options are:

DISP ON displays whichever unit is selectedOFF No Temperature Display

Fct. 3.5.5 PRES. OPR operating pressure

Enter the mean (average) operating pressure of the medium. This parameter is very importantsince it is involved in the density calculation.

The units available are :

• KG/CM2 G • KG/CM2 ABS• IN HG G • IN HG ABS• MM HG G • MM HG ABS• MM WATER G • MM WAT. ABS• PA G • PA ABS• KPA G • KPA ABS• ATM G • ATM ABS• BAR G • BAR ABS• MILLI BARG • MILLI BARA• PSI G • PSI ABS• LBF/FT2 G • LBF/FT2 A• SPECIAL

The internal set unit for pressure is Pascal. Enter all the characters, coefficients, and offset toobtain other units desired. Refer to the example given in Fct.3.5.4.

Here the selection of the Pressure Display can be done. The options are:

DISP ON displays whichever unit is selectedOFF No Pressure Display

Fct. 3.5.7 TEMP. NORM normal temperature

Enter the value for the normal/base/reference temperature.

This value is usually 00C or 200C. The unit options for this value are the same as in FCT. 3.5.4

Fct. 3.5.8 PRES. NORM normal pressure

Enter the value for the normal/base/reference pressure. This value is usually 1 atm. The unitoptions for this value are the same as in Fct. 3.5.5



Fct. 3.6.2 P-SENSOR pressure sensor

Select any of the the three option.

• INTERNAL • EXTERNAL • NONE

Fct. 3.7.1 P_EXCIT.V

6/15

Enter the excitation voltage given to the pressure sensor bridge. This is to make calibration dataindependent of electronics.


Enter the pressure value (in one of the units same as in Fct. 3.5.5) and the correspondingmillivolt value.


Enter the pressure value (the same unit assumed as in Fct. 3.7.2) and the correspondingmillivolt value.

Fct. 3.7.4 EXT. P. RNG external pressure sensor range

Enter the external pressure range for 4 mA & 20 mA

Fct. 3.8.5 DRY. FACT dryness factorEnter the dryness factors for saturated steam. It is in the limits 0.85 to 1.0

Fct. 3.8.6 PWR UNITS thermal power units.

Thermal power can be displayed in any one of the following units:

• KJ/hr • MJ/hr • GJ/hr• MW • BTU/hr • kCal/hr• KW• SPECIAL

APPEARS: If the meter is GROSS HEAT METER

Here the selection of the Thermal Power Display can be done. The options are :

DISP ON displays whichever unit is selected

OFF No Thermal Power Display

Fct. 3.8.8 ENERGY UNITS thermal energy units.

Thermal energy can be displayed in any one of the following units:

• KJ • MJ • GJ• BTU • kCal • KWH• MWH • SPECIAL


Here the selection of the Thermal Energy Display can be done. The options are :


OFF No Thermal Energy Display

Fct. 3.8.9 E.TOT.ON energy totalizer on/off

Select the option TOT.ON/OFF to start/restart the totalizer and select TOT.OFF to stop the totalizer,This means the power will not be accumulated till the time the totalizer is turned on again.

APPEARS: If the meter is GROSS HEAT METER

6/16

6/17

6.2.2 Heat Meter

The VFM , supports thermal power and energy calculations for steam and water. Thermal poweris calculated online from the mass flow and the specific enthalpy at the operating P&T and thethermal energy is calculated by time integrating (totalizing) thermal power. As energy totalizer isprovided to accumulate the thermal energy.

The thermal power can be displayed in one of the following units.

KJ/hr, MJ/hr, GJ/hr, BTU/hr, kCal/hr, KW and MW

The corresponding units for the energy display are : KJ, MJ, GJ, BTU, kCal, KWh and MWh

6.3 Program Organization and Programming Chart for COMPENSATED LIQUID ver 4.x.y.

6/18


Fct. 1.1.2 MAX_FLOW

Fct. 1.1.3 MIN_FLOW




Fct. 1.3.2 RANxGE-I

Fct. 1.3.5. VARIABLE I

Fct. 1.3.7 FS.N. POWER


Fct. 1.4.4 VARIABLE P

Fct. 2.1.2 TEST_I

Fct. 2.1.3 TEST_P

Fct. 3.1.1 NOM_DIA

Fct. 3.1.2 K_FACTOR

Fct. 3.2.2 CODE 1

Fct. 3.2.4 LOCATION



Fct. 3.2.7 POLL ADDR

Fct. 3.3.4 SET GAIN

Fct. 3.5.1 FLUID

Fct. 3.5.2 MEDIUM


Fct. 3.5.6 DENS. OP.

Fct. 3.6.1 T_SENSOR

Fct. 3.8.6 N.PWR. UNIT

Fct. 3.8.8. N. EN. UNIT

Fct. 3.8.9 NE. TOT. ON

Fct. 3.8.11 EXT. T. RANGE

Fct. 3.8.14 HIGHER T

Fct. 3.8.15 NULL TEMP

ACTUAL DISPLAY

ACCESS

TO

SETTINGS

OR

DATA

POSSIBLE

AT

THIS

LEVEL

ONLY


MenuLevels :-


The program functions are given in a numeric order as follows:

• Function number and title

• Description of the function



Set the instrument to measure the volumetric or the mass flow rate as per the options:

• VOLUME • MASS


• MAX.FLOW • MIN.FLOW • FLOW UNITS• TOTAL.UNITS • TOT. VALUE

Fct. 1.1.2 MAX.FLOW maximum flow rate


The current output range (4-20 mA) corresponds to the 0% flow (Q0%) and the 100% flow (Q100%)

respectively.


The following units are available to choose from depend on the programming in fun 1.1.1

FOR VOLUMETRIC FLOW

• M3/HR • M3/MIN • M3/SEC• LITRE/HR • LITRE/MIN • LITRE/SEC• CUFT/HR • CUFT/MIN • CUFT/SEC• FT3/HR • FT3/MIN • FT3/SEC• CFT/HR • CFT/MIN • CFT/SEC• US GAL/HR • US GAL/MIN • US GAL/SEC• UK GAL/HR • UK GAL/MIN • UK GAL/SEC• SPECIAL

FOR MASS FLOW

• KG/HR • KG/MIN • KG/SEC• T/HR • T/MIN • T/SEC• LB/HR • LB/MIN • LB/SEC• SPECIALFor units other than the specified units, select unit “SPECIAL”, replace the base unit with the userunit by changing the literal text. Also, enter the coefficient of that particular unit with respect to thebasic unit depending on the measuring instrument type that you have selected.





A0 offset = 06/19

In this function only the flow display unit can be selected. The options available are.

• Unit displays the unit selected

• % Max Flow displays the % flow.









YES means the display will cycle automatically. This means a measured parameter is shown inthe selected units for about 6 seconds and then the next parameter in the display cycle is shownfor 6 seconds and so on. NO (non-cyclic display) means the parameter is continuously shown onthe display (to see other parameters or to change setting use the key). You may see errormessages in between the changeover from one parameter to next if error(s) are present and Fct.1.2.6 ERROR MSG. is YES.


Here one selects one of the three possible range options. To set the current output as 0-20 mA

or 4-20 mA with/without an error indication on the current output. When a range with a suffix of

22E or 3.55E is selected then it means that the current output will give 22 mA or 3.55 mA error

output if any error(s) are present in the instrument. The range options are listed below:

• 4-20 • 4-20/22E • 4-20/3.55E

Fct. 1.3.5 VARIABLE I Current Output selection function

Selects any one of the two options available for the current output.

Options are listed below:

• FLOW• NET POWER

APPEARS: If the meter type is NET HEAT METER.

Fct. 1.3.7 FS.N.PWR

Enter the power value at which you want the current output at its maximum 20 mA.

APPEARS: If the meter type is NET HEAT METER &

6/20

fct 1.3.5. VARIABLE I is NET POWER.

Fct. 1.4.1 FUNCTION P Pulse outputChoose YES to make the pulse output active. NO makes the pulse output inactive (0 Hz).

Limits: The max. frequency of the pulse output is 0.5 Hz. To ensure that the pulse output does notexceed 0.5 Hz at max. flow, the coefficient in totalizer units can be adjusted. The pulse output willbe an exact replica of the integer value of the internal totalizer. If the flow rate exceeds in such a waythat the pulse rate exceeds 0.5 Hz then the pulse output will be erratic.

For Example:

For a flow rate of 360 kg/hr, pulses will be 360 pulses/hr. as the pulse output is exact replica ofinteger totalizer. So the freq. of the pulses will be 0.1 Hz. This is within given limits. But for flowrateof 3600 kg/hr., pulses will be 3600 pulses/hr. The freq. becomes 1 Hz. This is not within thespecified limits. In this case, A1 coeffecient should be adjusted in func. 3.2.5 Tot. value. Thisshould be selected such that the freq. of the pulse o/p lies below .5 Hz. If this factor is selected as0.1 then the frequency of the pulse output will become 10 times less. i.e. 0.1 Hz. which lies ingiven limits. Please note that the same factor will get applied to Integer totalizer also.

Fct. 1.4.4 VARIABLE PAssign pulse output to either of following options

• FLOW • NET ENERGYFct. 2.1.2 TEST I current output test

Caution: During this test, the current output will change to the test values so appropriateactions should be taken depending on how the current output is used.

• 4 mA • 8 mA • 12 mA• 16 mA • 20 mA








• 10-20 • 25 • 40-50 • 80-200The sizes under the group are as follows:

10-20 : DN10, ANSI 3/8”DN15, ANSI 1/2”

6/21

DN20, ANSI 3/4”

25 : DN25, ANSI 1”

40-50 : DN40, ANSI 1.5”DN50, ANSI 2”











Here the unit and coefficient of the totalizer can be set. This coeff can also be a scaling factor forthe pulse output and the totalizer value. The totalizer value can be preset using this function. Theinternal totalizer is an integer totalizer and has a fixed roll-over value 4294967295.

The units available are

• M3• LITRE• FT3 • CFT• CUFT • US GAL• UK GAL • SPECIAL

6/22

This function can also be used to reset the totalizer (to zero). The options available are:

• YES • NO


Here the selection of the Totalizer Display can be done. The options are :


OFF No Totalizer Display



Fct. 3.2.7 POLL ADDR polling address

Enter the polling address from 0 to 15. This is basically required for HART communication inmultidropping mode.


The gain of the signal preamplifier can be changed to alter the sensitivity of the Vortex amplifier. The valuesavailable are:

• 1 • 1.5 • 2• 3 • 6 • 11• 16

The factory set value is 3 for Liquids.


Select fluid type which is always LIQUID in this case.

• LIQUIDThe operating density should be entered for LIQUID and where the medium selected is NONE.


Select the medium from the options given below. If the medium used is not included in the optionlist, select -NONE-.For all the mediums except -NONE-, the instrument software calculates thedensity of the medium from conditions that is required for meter sizing, mass flow computations.However, for unsupported medium, the user has to supply the density at the operating P&T andthe density at the normal P&T

Options for fluid LIQUID:

• WATER • NONE



When the temperature sensor is not present, the value given here is used in flow computations forall mediums except NONE. The option available for units are.

TEMP UNITS• DEG C • DEG F • KELVIN• SPECIAL

6/23

To have some SPECIAL unit other than listed, all the literal characters, coefficient and offset mustbe entered.



Deg.C =0.55 Deg.F –17.77


A0 offset = -17.77

Here the selection of the Temperature Display can be done. The options are :


OFF No Temeperature Display

Fct. 3.5.6 DENS. OPR. density at operating P&T

Enter the density of the medium at the operating pressure and temperature conditions. The unitsavailable are:

• KG/M3 • KG/LITRE• LB/FT3 • LB/CFT• SP. GR. WAT • SPECIAL



Fct. 3.8.6 PWR UNITS Net thermal power units.

Thermal power can be displayed in any one of the following units:

• KJ/hr • MJ/hr • GJ/hr• MW • BTU/hr • kCal/hr• KW • TR• SPECIAL

APPEARS: If the meter is NET HEAT METER

Here the selection of the Thermal Power Display can be done. The options are :


OFF No Thermal Power Display

Fct. 3.8.8 EN UNITS Net thermal energy units.

Thermal energy can be displayed in any one of the following units:

• KJ • MJ • GJ• BTU • kCal • KWH• MWH • SPECIAL

APPEARS: If the meter type is NET HEAT METER

Here the selection of the Thermal Energy Display can be done. The options are :


OFF No Thermal Energy Display

6/24

Fct. 3.8.9 NE.TOT.ON/OFF Net energy totalizer on/off

Select the option TOT.ON/OFF to start/restart the totalizer and select TOT.OFF to stop the totalizer,This means the net power will not be accumulated till the time the totalizer is turned on again.

APPEARS: If the meter is NET HEAT METER

Fct. 3.8.11 EXT. T. RANGE External temperature full scale value

This function is used to enter the Range value of the external temperature sensor. Enter values ofexternal temp at 4 mA & 20 mA.

APPEARS: If the meter type is NET HEAT METER.

Here the selection of the External Temperature Display can be done. The options are :


OFF No External Temperature Display

Fct. 3.8.14 HIGHER T Select Process

The function is used to select the process. Options available are:

• T1>T2• T2>T1• NO CHOICE


Fct. 3.8.15 NULL TEMP.

This function is used to null the difference between the temperature sensors, T1 and T2, in theplant when the plant is not running. This eliminates the error in the calculation due to an offsetin the same temperature reading if measured by two different temperature sensors.


6.3.2 VFC with Net Heat Meter

VFM supports net thermal power and net energy calculations for water. Thermal power is calcu-lated online from the mass flow and the specific enthalpy both at the inlet of the process and at theoutlet. The difference between these two values is the net thermal power. The net thermal energyis calculated by time integrating (totalizing) the net thermal power. The mass flow is measured bythe VFM along with the temperature at that point. The temperature at the exit of the process is alsomeasured and transmitted (4 to 20 mA) to the VFM through an additional junction box. The massflow rate at the inlet and the outlet of the process is assumed to be the same.

The net thermal power can be displayed in any one of the following units:

KJ/hr, MJ/hr, GJ/hr, BTU/hr, kCal/hr, KW, MW, TR.

The net thermal energy units may be displayed in one of the following units:KJ, MJ, GJ, BTU, kCal, KWH, MWH

For both thermal power and energy user defined unit can be set. For details see sect 3.1.1

For external temperature sensing, a 2-wire RTD transmitter can be used. This should have acurrent output 4 to 20mA and an accuracy better than + 0.25% of the full scale.

6/25

7. Description of Program Menu Functions

7.1 Numerical format

• Display of numerical values

Real (i.e. fractional) values are displayed in the first line of the display consisting of 8 digits. Thenumber is displayed in the floating point format except the totalizer which is in an integer format(max. value... 4294967295) otherwise an exponent notation is used. See the examples given below.

Floating format: 1234.5678, 100.00

Exponent format: 1234E-10, 12345E12

In most practical applications, it is very rare that the parameters need be displayed in theexponent format.

• Input of numerical values

Entering a numeric value is very flexible. Enter a positive or a negative number in the floatingpoint format or the exponent format as required or as convenient.

Example: 1.2345678, -1234.567, 0.0001234

123456E1, -12345E4, 1234E-4

7/1

7/2

7.2 Display

Organization: The display consists of the following two fields.

Field 1: 10-character, 5x7 dot matrix alphanumeric display used primarily for showing numericvalues and also for messages.

Field 2: 10-character, 5x7 dot matrix alphanumeric display used for showing units,messages, etc.

Programming: The measurement mode settings are as follows:

- To allow the selection of the units for all the measured parametersRefer to Fct. 1.1.2, 3.2.5, 3.5.4 and 3.5.5

- Select display mode (cyclic/non-cyclic) and the error messages to/not to appear in thedisplay cycle.Refer to Sect. Fct. 1.2.6 to 1.2.7

Measurement mode: The display shows the measured parameter(s) in its selected unit. Theparameter is displayed continuously in the non-cyclic mode. [Fct. 1.2.7]. To select other parameter(s)of the display cycle, if any, use the key. In the cyclic mode, all the parameters selected in thedisplay cycle are displayed in a sequence one after another every 6 seconds.

Programming mode: The numeric line indicates the menu/functions level such as Fct. 1.1.1[current menu level digit blinks] and the alpha-numeric line indicates the menu/function title suchas MEAS_INST.

Error indications: A blinking bar at the upper left corner in the measurement mode indicates thaterror(s) are present. Error messages are displayed interleaved between changing from one displayparameter to another, if Fct. 1.2.6 ERROR.MSG is YES. For description of the error messages,refer to Sect. 4.1.5.

7.3 Flow range and meter size

The flow rate (min. flow to max. flow) that the flowmeter will be able to measure depends on theprimary data (3.1.x functions) and the application data (3.5.x functions). Thus, the flow rangespecified under the Fct. 1.1.2 MAX. FLOW and Fct. 1.1.3 MIN. FLOW must be within the measuringrange.

The flow range for any given application is determined by the sizing of the meter for that application.

When the flow rate exceeds the max flow, an error condition -HIGH FLOW- is generated. Whenthe flow rate falls below the min. flow, an error condition -LOW FLOW- is generated. The Vortexsensor signal is weak at this condition and if the flow rate reduces further, Vortex signal relatederrors such as CHECK INST., LOW SIGNAL will occur.

7.4 Primary information

The primary data gives VORTEX FLOW METER the basic information about the Vortex primarysensor. Use Fct. 3.1.1 NOMINAL.DIA for specification of the nominal DN/ANSI size andFct. 3.1.2 K-FACTOR for the calibration factor of the primary.

Depending on whether the primary has temperature sensor, the settings need be done inFct. 3.6.1 T-SENSOR. These sensors enable the VORTEX FLOW METER to provide an online Tcompensation.

Depending on whether the primary has Pressure Sensor, the settings need be done in Fct. 3.6.2P-SENSOR. These sensors enable the VORTEX FLOW METER to provide an online Pcompensation.

7/3

7.5 Application information

This is the data of the process medium, its operating conditions and physical properties. Itconsists of:

– Process medium Fct. 3.5.1 FLUID and Fct. 3.5.2 MEDIUM

– Operating temperature and pressure conditions. Refer Fct. 3.5.6 TEMP. OPR and Fct. 3.5.7PRES. OPR.

– Density of the medium at the operating conditions. This is required only if the softwarewithin the instrument does not support the medium (Fct. 3.5.1 is selected as OTHER GASOR OTHER LIQUID). Refer to

Fct. 3.5.6 DENS.OPR.

– Normal or reference P&T values required for normalized flow measurements only (dependingon Fct.1.1.1).

The usual values are temp.norm = 0oC or 20

oC and pres.norm = 1 atm.

– Density under normal conditions. This is required only for normalized volumetric flow and ifthe software within the

instrument does not support the medium (Fct. 3.5.2 is selected as OTHER GAS OR OTHERLIQUID). Refer to Fct. 3.5.9 DENS.NORM.

Not all of the above data needs to be given for any given application. Only the relevant datashould be punched during the actual programming.

7.6 Internal Electronic Totalizer

– The internal electronic totalizer counts volume, normalized volume or mass. The totalizer value

is saved in the non-volatile memory continuously. The totalizer can be displayed in the unitdesired as per the programming of Fct. 3.2.5 TOT.VAL. The totalizer counting is interrupted for

the duration of a power failure. Counting may optionally be stopped and thereafter restarted bythe use of Fct. 3.2.6 TOT. ON/OFF

– Resetting [to 0] or presetting of the totalizer is possible by using Fct. 3.2.5 TOT. VALUE.

7.7 Current (analog) output I

The current output gives an analog representation of the flow rate. An output of 20 mAalways corresponds to Q100% and that of 4 mA to Q0%. The current output between Q0% &Qmin is 4 mA.

TESTING OF CURRENT OUTPUT IFct. 2.2 TEST I can be used to check the current output. Integer values between 4 and 20 mA arepossible to be monitored on a current meter. During the test, the current output changes to the testvalue(s). The normal current value is restored automatically (as per programming of the currentoutput) when the measurement mode is resumed.

7/4

7.8 Pulse output P

The pulse output value is an exact replica of the internal integer totalizer. Every time the totalizer isincremented by one, the pulse output will give a pulse. For programming of the pulse rate, set thecoefficient in Fct.3.2.5 TOT.VAL.

The pulse output is generated by tracking the totalized flow and, thus, provides a true reflection ofthe internal totalizer value. The totalizer value is saved, continuously.

7.9 Coding desired for entry into programming mode

Fct. 3.2.2 ENTRY.CODE.1 set to YES for the coding. The entry code consists of 9 key strokes of3 keys in the given sequence, Refer to Section 3.2.1, functionality of the keys.

7.10 Behavior of outputs during programming

Programming of the VORTEX FLOW METER is “offline” meaning that the instrument stops workingwhen it is in the programming mode. This means that the VORTEX FLOW METER will stopmeasuring the flow rate and temperature; the totalizing flow and the control outputs (current andpulse) as per the programmed configuration. Thus, this means that the VORTEX FLOW METERwill keep the totalizer value and the current pulse output as per the last value before entering intothe programming mode.

EXCEPTION: Test functions TEST I and TEST P will affect the current and the pulse outputsrespectively only for the duration of the testing.

7/5

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1099

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942.

2612

173.

3910

35.7

912

948.

766"

6.07

468.

0256

71.6

078

2.47

1205

9.75

970.

7416

269.

7511

57.6

918

478.

4814

95.9

921

954.

5118

17.8

524

941.

0921

36.6

727

604.

5423

48.7

629

362.

788"

7.98

808.

7398

00.4

113

52.1

020

839.

0016

77.4

128

113.

8120

00.4

731

930.

4525

85.0

337

936.

9631

41.2

143

097.

7136

92.1

247

700.

1040

58.6

250

738.

30

DN

Insid

eP

= 1k

g/cm

2 _ g

P =

3.5

kg/c

m2 _

gP

=5.2

kg/

cm2 _

gP

= 7

kg/c

m2 _

g P

=10.

5 kg

/cm

2 _ g

P =

14 k

g/cm

2 _ g

P =

17.5

kg/

cm2 _

gP

= 20

kg/

cm2 _

g

Dia

(di)

ρ=1

.124

82 kg

/m3

ρ=2

.391

75 kg

/m3

ρ=3

.226

67 kg

/m3

ρ=4

.100

67 kg

/m3

ρ=5

.788

55 kg

/m3

ρ=7

.470

56 kg

/m3

ρ=9

.151

31 kg

/m3

ρ=1

0.35

42 kg

/m3

mm

mm

min

max

min

max

min

max

min

max

min

max

min

max

min

max

min

max

1012

.65.

5737

.87

9.31

58.2

211

.55

67.6

313

.77

76.2

417

.80

90.5

821

.63

102.

9025

.42

113.

8927

.94

121.

1515

14.9

6.50

52.9

610

.86

81.4

213

.47

94.5

716

.07

106.

6120

.77

126.

6725

.23

143.

9029

.66

159.

2732

.60

169.

4120

20.9

9.06

104.

1915

.14

160.

2018

.78

186.

0722

.40

209.

7628

.95

249.

2235

.18

283.

1241

.35

313.

3645

.45

333.

3225

28.5

15.9

919

3.75

26.7

341

1.96

33.1

655

5.77

39.5

563

1.23

51.1

074

9.97

62.1

085

1.99

72.9

994

2.98

80.2

310

03.0

440

43.1

36.5

644

3.10

61.1

394

2.16

75.8

412

71.0

590

.44

1443

.62

116.

8717

15.1

814

2.02

1948

.50

166.

9321

56.5

818

3.50

2293

.94

5054

.558

.46

708.

5097

.74

1506

.48

121.

2620

32.3

614

4.62

2308

.29

186.

8827

42.5

122

7.08

3115

.59

266.

9134

48.3

029

3.40

3667

.93

8082

.513

3.97

1623

.51

223.

9834

52.0

527

7.87

4657

.11

331.

3852

89.3

942

8.22

6284

.39

520.

3571

39.2

861

1.61

7901

.68

672.

3284

04.9

710

010

7.1

225.

7827

36.0

737

7.47

5817

.66

468.

2878

48.5

155

8.47

8914

.08

721.

6710

590.

9387

6.94

1203

1.66

1030

.74

1331

6.52

1133

.05

1416

4.70

150

159.

349

9.49

6053

.13

835.

0912

870.

6610

36.0

017

363.

6012

35.5

419

721.

0115

96.5

823

430.

7719

40.0

826

618.

1822

80.3

429

460.

7225

06.7

031

337.

1820

020

6.5

839.

3410

171.

5814

03.2

721

627.

6617

40.8

829

177.

5220

76.1

833

138.

8726

82.8

739

372.

7032

60.0

944

728.

7638

31.8

549

505.

3242

12.2

252

658.

51

Ran

ge

limit

s fo

r sa

tura

ted

ste

am:

Flo

w r

ate

Qm

in k

g/hr

for

diff

eren

t (P

) an

d de

nsity

ρ

Flo

w r

ate

Qm

in k

g/hr

for

diff

eren

t pr

essu

re (

P)

and

dens

ity ρ

EN 1092

-1

8/2

Ran

ge

Lim

its

for

satu

rate

d s

team

: F

low

rat

e Q

m in

lbs/

hr f

or d

iffer

ent

(P)

and

dens

ity ρ

DN

Insid

eP

=15

PSIG

P =5

0 PS

IGP

=75

PSIG

P =1

00 P

SIG

P =1

50 P

SIG

P =2

00 P

SIG

P =2

50 P

SIG

P =3

00 P

SIG

Dia

(di)

ρ=0.

072

lbs/

ft3ρ=

0.14

98 lb

s/ft3

ρ=0.

2036

lbs/

ft3ρ=

0.25

69 lb

s/ft3

ρ=0.

3627

lbs/

ft3ρ=

0.46

82 lb

s/ft3

ρ=0.

5736

lbs/

ft3ρ=

0.67

93 lb

s/ft3

mm

mm

min

max

min

max

min

max

min

max

min

max

min

max

min

max

min

max

1012

.612

.43

85.2

720

.49

128.

0725

.56

149.

3330

.32

167.

7339

.19

199.

3047

.64

226.

4356

.00

250.

6263

.42

272.

7315

14.9

14.5

011

9.24

23.9

117

9.09

29.8

320

8.83

35.3

823

4.55

45.7

327

8.70

55.5

931

6.63

65.3

435

0.46

74.0

038

1.38

2020

.920

.22

234.

6133

.33

352.

3641

.58

410.

8749

.33

461.

4863

.75

548.

3577

.49

622.

9891

.09

689.

5410

3.15

750.

3825

28.5

35.6

943

6.25

58.8

390

7.58

73.4

112

33.9

887

.08

1388

.73

112.

5516

50.1

413

6.79

1874

.72

160.

8020

75.0

118

2.10

2258

.09

4043

.181

.63

997.

7113

4.55

2075

.62

167.

8828

22.1

119

9.15

3176

.02

257.

4037

73.8

531

2.84

4287

.48

367.

7647

45.5

441

6.47

5164

.25

5054

.513

0.52

1595

.30

215.

1433

18.8

426

8.44

4512

.45

318.

4450

78.3

341

1.57

6034

.25

500.

2368

55.5

258

8.03

7587

.94

665.

9282

57.4

480

82.5

299.

0936

55.5

949

2.98

7605

.03

615.

1210

340.

1672

9.69

1163

6.87

943.

1013

827.

3311

46.2

615

709.

2513

47.4

617

387.

5715

25.9

518

921.

7010

010

7.1

504.

0561

60.6

783

0.81

1281

6.57

1036

.65

1742

6.02

1229

.73

1961

1.34

1589

.38

2330

2.87

1931

.76

2647

4.42

2270

.84

2930

2.85

2571

.64

3188

8.29

150

159.

311

15.1

413

629.

5318

38.0

428

354.

6722

93.4

238

552.

3527

20.5

843

387.

0235

16.2

651

553.

9742

73.7

158

570.

5150

23.8

964

827.

9856

89.3

570

547.

8720

020

6.5

1873

.86

2290

2.84

3088

.62

4764

6.73

3853

.83

6478

2.76

4571

.63

7290

6.86

5908

.67

8663

0.47

7181

.48

9842

0.95

8442

.06

1089

35.9

095

60.3

011

8547

.51

DN

Insid

eP

=15

PSIG

P =5

0 PS

IGP

=75

PSIG

P =1

00 P

SIG

P =1

50 P

SIG

P =2

00 P

SIG

P =2

50 P

SIG

P =3

00 P

SIG

AN

SI

Dia

(di)

ρ=0.

072

lbs/

ft3ρ=

0.14

98 lb

s/ft3

ρ=0.

2036

lbs/

ft3ρ=

0.25

69 lb

s/ft3

ρ=0.

3627

lbs/

ft3ρ=

0.46

82 lb

s/ft3

ρ=0.

5736

lbs/

ft3ρ=

0.67

93 lb

s/ft3

Inche

sInc

hes

min

max

min

max

min

max

min

max

min

max

min

max

min

max

min

max

3/8"

0.50

12.4

385

.27

20.4

912

8.07

25.5

614

9.33

30.3

216

7.73

39.1

919

9.30

47.6

422

6.43

56.0

025

0.62

63.4

227

2.73

½"

0.59

14.5

011

9.24

23.9

117

9.09

29.8

320

8.83

35.3

823

4.55

45.7

327

8.70

55.5

931

6.63

65.3

435

0.46

74.0

038

1.38

¾"

0.82

20.2

223

4.61

33.3

335

2.36

41.5

841

0.87

49.3

346

1.48

63.7

554

8.35

77.4

962

2.98

91.0

968

9.54

103.

1575

0.38

1"1.

0531

.33

382.

8951

.64

796.

5564

.43

1083

.03

76.4

312

18.8

598

.78

1448

.28

120.

0616

45.3

914

1.13

1821

.18

159.

8319

81.8

71½

"1.

6173

.51

898.

4512

1.16

1869

.13

151.

1825

41.3

617

9.34

2860

.06

231.

7933

98.4

228

1.72

3860

.95

331.

1742

73.4

437

5.04

4650

.49

2"2.

0712

1.58

1486

.01

200.

4030

91.4

725

0.05

4203

.30

296.

6247

30.4

238

3.37

5620

.85

465.

9663

85.8

554

7.75

7068

.10

620.

3076

91.7

33"

3.07

267.

3532

67.6

744

0.67

6798

.02

549.

8592

42.9

165

2.26

1040

2.02

843.

0212

360.

0410

24.6

214

042.

2512

04.4

715

542.

4713

64.0

216

913.

814"

4.03

460.

7856

31.8

375

9.49

1171

6.37

947.

6615

930.

1311

24.1

717

927.

8514

52.9

521

302.

4917

65.9

324

201.

7820

75.9

126

787.

4223

50.8

829

150.

926"

6.07

1044

.88

1277

0.80

1722

.24

2656

8.18

2148

.92

3612

3.35

2549

.17

4065

3.42

3294

.72

4830

5.80

4004

.44

5488

0.26

4707

.36

6074

3.48

5330

.90

6610

2.99

8"7.

9818

05.5

322

067.

6829

75.9

945

909.

2937

13.3

062

420.

4444

04.9

270

248.

3056

93.2

183

471.

4669

19.6

094

832.

0081

34.2

210

4963

.53

9211

.68

1142

24.6

5

Flo

w r

ate

Qm

in lb

s/hr

for

diff

eren

t (P

) an

d de

nsity

ρ

8/3

EN

1092

-1

8.1 Range limit calculation for Gases

Use the following equation to obtain the operating density ρx at the operating temperature andpressure:

ρx = ρn

×

Pn

Px x

Tx

Tn

where ρn, ρx = Density of the gas at normal and operating conditions respectively

Pn, Px = Pressure of the gas, in absolute units, at normal andoperating conditions respectively

Tn, Tx = Temperature of the gas, in Kelvin, at normal and operatingconditions respectively

Use the following equation to obtain the operating volumetric flow from the normalized volumetricflow and vice-versa:

Qn = Qx xPn

Px x

Tx

Tn

where: Qn and Qx are the normalized and the operating volumetric flow rates respectively. The ratioof the compressibility factors is assumed to be equal to 1.

The operating data of the process medium must be known in order to calculate themeasuring range.

• Density ρx of medium at flowing conditions, in kg/m3

• Dynamic (absolute) viscosity of the medium at the flowing condition, h in mPA *s(or in centipoise)

• Maximum volumetric flow rate Qmax in m3/hr.

• Minimum volumetric flow rate Qmin in m3/hr.

• Refer to pages 6/10 to 6/13 for the dimension of the meter inside diameter.

The following limits apply to operation:

• Reynolds number at min flow, Re>20000 for linear measurements

• Minimum detectable flow velocity Vmin (See page 6/9 Diagram III)

• Maximum flow velocity Vmax = 135.7306 /√ρop …………for sizes DN 25 to 200 (1” to 8”)

= 83.87146 /√ρop ………...for sizes DN 10 to 20 (3/8” to 3/4”)

In both the cases, Vmax is clamped at 75 m/s. For densities at and above 50 kg/m3, Vmin isfixed to 0.94192 m/s for all sizes.

Calculating the Reynolds number:

Re = 353.67 * Qmin (m3/h) * ρx (kg/m3)

φ (mm) * η (mPa*s)

8/4

Calculating the minimum flow:Qmin (m3/hr) = 1 * Vmin (m/s) * φ2 (mm)2

353.67

Calculating the maximum flow:

Qmax (m3/hr) = 1 * Vmax (m/s) * φ2 (mm)2

353.67

8.2 Range limit calculation for Saturated Vapour

In the same way as for gases, use the above equations to establish the range limits for the volumeflow rate. Refer to the vapour tables for the appropriate density and calculate the volume flow ratefrom the mass flow rate. Check the range limits if the operating parameters change.

8/5

8.3 Flowmeter [Primary head/Sensor VORTEX FLOW SENSOR]

Versions and meter sizes Pressure ratings see Table “Dimensions”on page 6/12 & 6/13 (Note the operating limits toDIN 2401 and ANSI B 16.5)

Sandwich design to...DIN 19205 DN 25 to 150ANSI 1” to 6”

Flange connections to... (Standard)EN 1092-1 form B1 & B2 DN 10 to 200ANSI B 16.5 3/8” to 8”

Groove joint to... (optional)EN 1092-1 form C,E,E,F DN 25 to 150ANSI 1” to 6”

Product and ambient temperature Refer Diagram on page 5/11 ofConvertor Manual

AccuraciesOperating volumetric flow(Re≥20000)Measuring error ±1% of measured value for DN 25 to 200

and ANSI 1” to 8”±2% of measured value for DN 10 to 20,ANSI 3/8”S to ¾”

Normalized volumetric and mass flow (Re≥20000)Measuring error ±1.5% of measured value for DN 25 to 200

and ANSI 1” to 8”±2.5% of measured value for DN 10 to20, ANSI 3/8”S to ¾”

Repeatability ±0.5% of measured valueProduct Temperature error Compensated by software only

Materials

SR.No. DESCRIPTION MATERIAL REMARKS

1 Housing Stainless Steel, A351 CF3M (316L) Up to size DN 100/4”Stainless Steel, A351 CF8 (304) From DN 150/6” to DN 200/8”

2 Vortex shedding body Unalloyed Titanium (No.3.7035)as standard

Seals

a. Up to 180 deg. C (356 deg.F) Parofluor O ring Non steam applications

3 b. Up to 220 deg. C (428 deg.F) Parofluor O ring Non steam applications

c. Up to 240 deg. C (464 deg.F) Parofluor O ring Steam applications

4 Bluff body metal seal C ring Inconel Ni plated Once used, the metal C ring shouldnot be used again. Tighteningtorques for new seals areM6 = 1.5 kg - mM8 = 2 kg - mM10 = 5.5 kg - m

5 Gaskets GASKET, STYLE AF-139, NON ASBESTOSGASKET, STYLE AF-160, NON ASBESTOS Any one as per applicationGASKET, TEFLON (PTFE)

8/6

Pressure loss ∆∆∆∆∆pat normal conditionsfor air (1.013 bar/0º C/ρn = 1.29 kg/m3)(14.69 psi/32ºF/ρn = 0.0805 lbs/ft3) See Diagram Ifor water (20ºC/ρn = 998.2 kg/m3)(68ºF/ρn = 62.31 lbs/ft3) See Diagram IIat operating conditions ∆p pressure loss in Pafor gases and liquids ∆p = C * qv

2 * ρx C constant (see Table)qv flow rate in m3/hr

for standard vapour ∆p = C * qm2 qm flow rate in kg/hr

ρx ρx operating density in kg/m3

Diagram I Diagram IIPressure loss ∆p for air 1.013 bar (14.69 psi)/0ºC(32ºF)/ρn Pressure loss ∆p for water 20ºC (68ºF)/ρn=998.2 kg/m3

=1.29 kg/m3 (0.0805 lbs/ft3) (62.31 lbs/ft3)∆p (psig) ∆p (mbar) ∆p (psig) ∆p (mbar)

Table for diagrams I +II and Constant C

Curve Meter size (DIN/ANSI) Constant C

B DN 10, 3/8” 3.42

C DN 15, ½” 1.75

D DN 20, ¾” 0.45

E DN 25, 1” 1.50 * 10-1

F DN 40, 1½” 3.30 * 10-2

G DN 50, 2” 7.80 * 10-3

H DN 80, 3” 1.90 * 10-3

I DN 100, 4” 5.30 * 10-4

J DN 150, 6” 1.60 * 10-4

K DN 200, 8” 5.90 * 10-5

6 2 1 1 0 1 00 1 00 0 1 00 002 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7

m /hU S G P M

3

4 4 1 1 0 1 00 1 00 02 3 5 7 2 3 5 7 2 3 5 7 2 3 5 7

m /hU S G P M

3m3/hrm3/hr

8/7

DN 25 (1") to DN 200 (8") DN 10 (3/8") to DN 20 (¾")

Diagram IIIMin. flow velocity at various densities for gases and saturated steam.

Density kg/m3 Density kg/m3

Curve Meter Size(DIN/ANSI)

B DN 10/3/8”

C DN 15/1/2”

D DN 20/3/4”

8/8

DN 25 (1") to DN 200 (8") DN 10 (3/8") to DN 20 (¾")

8.4 Signal Convertor VORTEX FLOW METER-- Technical Data

Full-scale range Units text of 10-characters freely programmable.Conversion factor coefficient and intercept (offset)programmable for accepting any unit required.

Power supply UB (2-wire) 12-36 V DC

Current output terminals, 4-20 mA, DC, 2-wire

Maximum load resistanceRB =

UB - 12 V

20 mA

Ambient temperature Tu

Local display (optional) 2-line dot matrix 10-characters per line LCD with3-button keypad/magnetic pin programming.Programming through a user-friendly menu interface.

Display functions Actual flow rate, sum integer totalizer (10-digit),operating temperature, Vortex frequency eachprogrammable for continuous or sequential display ofthe measuredparameters and error messages

Display units Units text (10-characters) freely programmable alongwith conversion factors

8/9

12

1200

Actual flow rate Units text (10-characters) freely programmable alongwith conversion factors

Totalizer Units text (10-characters) freely programmable alongwith conversion factors

Language of plain texts English. German and French available upon request.

Display

1st field (top) 10-character, 5x7 dot matrix alphanumeric display

2nd field (bottom) 10-character, 5x7 dot matrix alphanumeric display

Mass flow measurement Online for saturated steam or water (liquid state) up to240 deg. C. Temperature sensor standard built-in withVORTEX FLOW SENSOR primary.Offline operating and standard density programmable.

Temp measurement Accuracy + 0.3 degree

Pressure measurement Accuracy + 0.3% of F.S.+ 1 LSB

Housing, signal convertor Standard, flameproof enclosure “d” according to EN 50014,EN 50018 and terminal compartment “d” according toEN500118, EN50014

Material Die-cast aluminium (LM6)Protection category(EN 60529/IEC 529) IP 65 and IP 67 (better than NEMA 4 and 4X)

Current output (same as the Operating data programmable, galvanically isolated frompower terminals 12/11) the sensors and the pulse output

Current 4-20 mA corresponding to zero and the maximumflow value programmed

Accuracy ± 0.2% of full-scale

Temperature coefficient 100 ppm of full-scale range per 10 C

Power influence + 0.05% of full-scale range for 12-36 V variation in the voltage supply

Pulse output (passive) Optional. Galvanically isolated from the sensors andthe current output. The increment is identical to the internalinteger totalizer. Maximum pulse rate is 0.5 Hz.

Power supply 5-30 V DC

Load current Max. 100 mA

Power Internal power dissipation is 250 mW

Self diagnostics Built-in for amplifier circuits witherror annunciation.

8/10

9/1

SIZE Version di a b c b c WITH P.S. W/O P.S.1”-150 FL 26.7 250.0 285.0 108.0 313.0 180.0 6.7 5.9

1.5”-150 FL 40.9 250.0 306.0 127.0 324.0 215.0 10.9 10.02”-150 FL 52.6 250.0 322.0 152.4 328.0 215.0 10.9 10.03”-150 FL 78.0 250.0 361.0 190.5 361.0 247.0 17.4 16.54”-150 FL 102.4 250.0 390.0 228.6 390.0 288.0 20.6 19.76”-150 FL 152.4 250.0 454.0 179.4 454.0 349.0 28.0 27.18”-150 FL 202.7 300.0 523.0 342.9 523.0 411.0 51.3 50.41”-300 FL 26.7 250.0 293.0 124.0 313.0 188.0 7.7 6.9

1.5”-300 FL 40.9 250.0 320.0 155.4 324.0 212.0 10.6 9.72”-300 FL 52.6 250.0 329.0 165.0 328.0 222.0 12.3 11.43”-300 FL 52.6 250.0 370.0 209.0 370.0 256.0 20.4 19.54”-300 FL 102.4 250.0 403.0 254.0 403.0 301.0 28.2 27.36”-300 FL 152.4 250.0 473.0 317.5 473.0 386.0 43.2 42.38”-300 FL 202.7 300.0 542.0 381.0 542.0 430.0 72.8 71.9

1” SW 26.7 65.0 266.0 69.0 313.0 161.0 4.7 3.81.5” SW 40.9 65.0 287.0 89.0 324.0 179.0 5.1 4.22” SW 52.6 65.0 296.0 100.0 328.0 189.0 5.4 4.53” SW 78.0 65.0 334.0 136.0 348.0 220.0 7.2 6.34” SW 102.4 80.0 355.0 159.0 358.0 254.0 8.3 7.56” SW 154.2 154.0 422.0 216.0 358.0 318.0 18.6 17.6

DN25-PN40 FL 28.5 250.0 288.0 115.0 312.0 184.0 7.5 6.6DN25-PN100 FL 28.5 250.0 301.0 140.0 312.0 196.0 10.1 9.2DN40-PN40 FL 43.1 250.0 317.0 150.0 323.0 208.0 9.9 9.0DN50-PN40 FL 54.5 250.0 328.0 165.0 328.0 221.0 11.8 10.9DN50-PN64 FL 54.5 250.0 343.0 180.0 343.0 228.0 15.2 14.3DN50-PN100 FL 54.5 250.0 335.0 195.0 335.0 236.0 17.6 16.7DN80-PN40 FL 82.5 250.0 359.0 200.0 359.0 259.0 16.6 15.7DN80-PN64 FL 82.5 250.0 375.0 215.0 374.0 267.0 19.6 18.7DN80-PN100 FL 82.5 250.0 366.0 230.0 366.0 274.0 23.0 21.1DN100-PN16 FL 107.1 250.0 391.0 220.0 391.0 281.0 16.0 15.2DN100-PN40 FL 107.1 250.0 363.0 235.0 363.0 288.0 19.0 18.2DN100-PN64 FL 107.1 250.0 384.0 250.0 384.0 296.0 24.0 23.2DN150-PN16 FL 159.3 250.0 454.0 285.0 454.0 350.0 24.2 23.3DN150-PN40 FL 159.3 250.0 461.0 300.0 461.0 358.0 30.0 29.1DN200-PN10 FL 206.5 300.0 520.0 340.0 520.0 411.0 44.3 43.4DN200-PN16 FL 206 300.0 520.0 340.0 520.0 411.0 43.1 42.2

DN25 SW 28.5 65.0 265.0 69.0 312.0 161.0 4.6 3.8DN40 SW 43.1 65.0 286.0 89.0 323.0 178.0 5.0 4.1DN50 SW 54.5 65.0 295.0 100.0 327.0 188.0 5.3 4.4DN80 SW 82.5 65.0 327.0 136.0 340.0 227.0 6.9 6.0DN100 SW 107.1 80.0 353.0 159.0 355.0 251.0 7.7 6.9DN150 SW 159.3 145.0 420.0 216.0 358.0 316.0 17.1 16.21”-600 FL 26.7 250.0 293.0 124.0 313.0 188.0 9.0 8.1

1.5”-600 FL 40.9 250.0 320.0 155.4 324.0 212.0 12.8 12.02”-600 FL 52.6 250.0 329.0 165.1 329.0 222.0 15.1 14.23”-600 FL 78.0 250.0 370.0 209.6 370.0 256.0 23.8 23.04”-600 FL 102.4 250.0 412.6 273.1 412.6 310.6 34.0 33.16”-600 FL 152.4 350.0 492.1 355.6 492.1 405.1 78.8 77.98”-900 FL 202.7 400.0 561.1 419.1 561.1 125.9 124.9

WITH PR. SENSOR TOTAL WEIGHTS (Kg)

9. Dimensions & Weight

contd....

9/2

TOTAL TOTALSIZE a di WEIGHT WEIGHT

DN10,3/8” 824.0 12.6 FLG only T with Pr. Sr.DN 15, 1/2” 964.0 15.7 DN10 15-A150 7.18 8.18DN20,3/4” 1324.0 20.9 15-A300 7.68 8.68

20-A150 7.58 8.58WITH P&T CONDUCT 20-A300 8.78 9.78

b c 25-A150 8.18 9.183/8”, DN10 316.2 234.2 25-A300 9.28 10.281/2”, DN15 317.2 235.5 DN-10-PN40 7.68 8.683/4”, DN20 320.2 238.4 DN15-PN40 7.88 8.88

DN20-PN40 8.58 9.58DN25-PN40 9.22 10.22DN15-PN100 8.58 9.58DN15-PN100 8.78 9.78DN25-PN100 11.98 12.98

DN15 15-A150 7.865 8.86515-A300 8.365 9.36520-A150 8.265 9.26520-A300 9.465 10.46525-A150 8.865 9.86525-A300 9.965 10.965

DN15-PN40 8.565 9.565DN20-PN40 9.265 10.265DN25-PN40 9.905 10.905DN10-PN100 9.265 10.265DN15-PN100 9.465 10.465DN25-PN100 12.665 13.665

DN20 15-A150 8.754 9.75415-A300 9.254 10.25420-A150 9.154 10.15420-A300 10.354 11.35425-A150 9.754 10.75425-A300 10.854 11.854

DN20-PN40 10.154 11.154DN25-PN40 10.794 11.794DN10-PN100 10.154 11.154DN15-PN100 10.354 11.354DN25-PN100 13.554 14.554

Dimensions & Weight

9/3

Sandwich version DN 25 To DN 50 (1” To 6”)

Without P Sensor With P Sensor

Flange version DN 25 To DN 50 (1” To 2”)


Flange version DN 80 To DN 150 (3” To 6”)


Flange version DN 200


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11. Function Checks

11.1 Current output check

Fct. 2.1.2 TEST I can be used to test the current output function of VORTEX FLOW CONVERTER.With this function, it is possible to generate following test values: 0/2/4/10/20/22 mA. Refer tosection 1.2 for the connection diagram.

The current output electronics is factory-calibrated and should be within + 0.02 mA. Otherwise re-calibration of the current output is necessary by Forbes Marshall Service.

11.2 Pulse output check

Fct. 2.1.3 TEST P is meant for checking the pulse output. 0.50607 Hz will be generated at pulseoutput. This can be checked by connecting the electromechanical counter between the pulseoutput terminals.

11/1

11.3 Functional checks

This section describes some functional checks that can be performed without using any specialequipment. It must be noted that these checks are very preliminary and do not check the totalfunctionality of the primary head or the signal converter.

11.4 Primary head functional checks

11.4.1 Vortex sensor

To perform the preliminary testing of the Vortex piezo sensor, the signal cable of the piezo sensorshould be disconnected from the signal converter electronics. To do this: always switch OFF thepower source before commencing work!

1. remove the cover from the electronic compartment. Ensure that the screw threads of theelectronic compartment cover are well greased at all times!

Do the following tests

Capacitance between the centre pin and each outer pin.

ANSI 3/8” to 1” 1.5”, 2” 3” and aboveDN 10 to 25 40,50 80 and above

C (nF) 0.8 to 1.5 2.0 to 3.4 2.7 to 4.5

Resistance between the centre pin and each outer pin >200 M ohm. Also, the resistancebetween each sensor wire pin and the earth should be >200 M ohm.5. Reassemble the converter in the reverse order

11/2

Temp Sensor I/P

Pressure sensor I/P

Piezo sensor I/p

Connector fordisplay

11.4.2 Temperature sensor

The PT-1000 temperature sensor can be checked by measuring its resistance.

Always switch OFF power source beforecommencing work!

Follow the steps 1 and 2 i.e. the same as in the above Section 5.1.1

3. Remove the temperature sensor cable at the location Y of the preamplifier board. Pull thecable by its end connector and not by the cable itself!

4. Resistance between the 2 pins should be within 1K [0ºC] – 1.193k [50ºC] depending on theambient temperature. For other temperatures resistance values as per DIN43760.

5. Reassemble the converter in the reverse order.

11/3

12. Trouble-shooting

It is assumed in this section that the convertor has already been installed. (for installation details,refer to Sections 2 and 3 in the Sensor Manual).

Given below are some trouble-shooting hints.

SYMPTOM: The display is blank.

• Supply voltage (between terminals 1/2) is not available.

• Electronics faulty

SYMPTOM: The current output is not correct.

• Check the current output electronics (refer to Sect.7.7)

• Check that the current output loop is not overloaded [1200 ohm max.]

SYMPTOM: The pulse output is incorrect.

• Check the pulse output electronics (refer to Sect. 7.8)

• Check the programming of the pulse output (Functions Fct. 1.4.1.)• Check that the pulse output is not overloaded. For load ratings of the pulse output, refer to

specifications on Page 3/2

SYMPTOM: INV.CONFIG (invalid configuration)

• Configuration data in the non-volatile memory is inadvertently corrupted. Go to theprogramming mode and recheck (reprogram, if necessary) all the settings. If the errorpersists contact Forbes Marshall Service.

SYMPTOM: Display contrast is progressively fading.

• Never expose the display directly to the sunlight! Install a sunshade if necessary.

12/1

12.1 Trouble-shooting hints

It is assumed in this section that the flowmeter has already been installed. (for installation details,refer to Sections 2 and 3).

Given below are some trouble-shooting hints.

SYMPTOM: A non-zero flow indicated when no actual flow in the pipe.

• Mains interference due to improper earthing.

The protective earth PE terminal should be properly grounded.

• Excessive mechanical vibration in the pipe. If so, support the pipeline near the flowmeterperpendicular to both the axis of the pipe and the axis of the bluff body.

• This problem can be solved by reducing the factory set gain.

For e.g. Factory set gain for Gas/Steam is 11 and for liquid it is 3. This can be reduced to 6 forGas/Steam and 2 for liquid.

Caution: By reducing the gain, the minimum measurable flow rate will go up by the factor whichis approx. equal to square root of ratio of the gains. (old gains/ new gain). If the min. flow withreduced gain is above the min. flow which is required to be measured, then reducing the gain isnot the permanent solution. Then the installation should be corrected and also the vibrationsshould be eliminated.

SYMPTOM: ‘CHECK INST.’ error is displayed when no flow in the pipe.

The display should normally indicate 0.0 flow rate, LOW FLOW and LOW SIGNAL errors whenthere is no flow in the pipe. The additional CHECK INSTALL error (flow rate = 0.0 or some steadyor fluctuating value) is an indication of:

• Improper/inadequate earthing

• Excessive pipe vibration

SYMPTOM: Flow rate indicated is 0.0 even with flow in the pipe.

• The Vortex sensor cable disconnected or is not properly connected.

• Flow sensor faulty – some checks are given inSect. 11.4

SYMPTOM: The flow indicated responds to changes in the flow but the indicated value doesnot correspond to the actual flow rate. Also ‘CHECK INST.’ error may appear intermittantly.

• Check the programming of Fct. 3.1.2 K-Factor which should be same as that on the name plate

• The meter is not properly centered on the pipeline. The axis of the meter bore should bealigned with that of the pipe.

• Gaskets at the meter are protruding into the pipe bore. The gaskets must not project into theeffective cross-section of the pipe.

• Irregularities on the surface of the pipe bore. The pipe bore should be free from irregularitiesat the welded joints, dirt, deposits and excessive surface roughness.

• The Vortex signal is falsified due to a bi-phase medium. Bi-phase media are not permitted. Usea moisture separator for wet steam applications to remove the moisture droplets from thesteam. Use suitable filters in gas applications to remove solid particles from the flowing gas.

• Incorrect angular position of the meter.Refer to Sect. 2.1 (I) for the allowable mounting positions.

• Insufficient upstream/downstream pipe lengths. Check that the upstream/downstream pipelengths are of the correct minimum length as given in Sect. 2.1 (3).

• Check the flow direction and the direction of the arrow on the primary.

12/2

Addendum to Installation and Operating Instructions

Precautions for “Safe and Desired” operation ofVORTEX FLOW METER

with VORTEX FLOW CONVERTER signal converter

Do Ensure that sufficient Upstream and Downstream straight lengths are provided

Check that the housing of the primary head is perfectly centred between the process

flanges

Provide proper supports to the pipeline at both ends of the meter to keep the pipe

vibration level well below the maximum limit specified

Ensure that the unit is installed in the process pipeline with fasteners securely and

firmly tightened causing no leakage of the process fluid through the gaskets

Check the chemical compatibility of the material of the wetted parts with the process

fluid

Maintain proper Downstream pressure to avoid cavitation

Degrease the meter properly in case the process fluid is hazardous like Oxygen

Ensure that the controlled valve is opened slowly not allowing the start-up velocity from

being very high in case the process fluid is hazardous like Oxygen

Ensure that tightening torques are applied for M6-1.5kg-m, M8-2 kg-m, M10-5.5 kg-m

DO NOT

Use the meter with the process fluid being bi-phase like Gases-Vapours with liquid

droplets or solid particles and gas bubbles in liquids

Install the meter where the process medium is pulsating with fluctuations in the process

pressure

Allow any of the parameters like Flow-Density-Pressure-Temperature- Reynolds Number

beyond the limit value specified for the meter on the Nameplate and the Test and

Guarantee Certificate

Tamper with any parts of the primary head of the meter

Replace the fasteners with any other make or brand without the consent of the

manufacturer

Allow the process pressure to exceed the flange rating.

Use the same metal ‘c’ ring after dismantling Bluff Body

IndiaForbes Marshall Pvt. Ltd.A-34/35, MIDC‘H’ Block, Pimpri, Pune 411 018, India.Telephone : 91-020-27442020Telex : 0146-323FSON INTelefax : 91-020-2744 2040URLhttp://www.forbesmarshall.com

Subject to change without notice

Manufactured By :

500/May 06/5644/3499

Vortex Meter Forbes Marshall VFM 7700 Manual

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Transcript of Vortex Meter Forbes Marshall VFM 7700 Manual