Linearization Electronics

23
Lysis Linearization Electronics

Transcript of Linearization Electronics

Page 1: Linearization Electronics

Lysis

Linearization

Electronics

Page 2: Linearization Electronics

Lysis Electronic linearization with viscosity compensation User manual

TrigasDM GmbH – September 2016 2

Table of contents

1. General information .............................................................................................. 3

2. Safety regulations ................................................................................................. 4 2.1 Marking of important information .................................................................... 4 2.2 General safety regulations .............................................................................. 4

3. Description ............................................................................................................ 5

3.1 Design and measuring principle ..................................................................... 5 3.2 Technical data ................................................................................................ 6

3.3 Type key ......................................................................................................... 8

4. Installation / commissioning .................................................................................. 8 4.1 Safety regulations ........................................................................................... 8 4.2 Checks after delivery ...................................................................................... 8

4.3 Principle of operation ...................................................................................... 8 a. Impact of the viscosity ................................................................................ 8

b. Compensation of the effect of viscosity ...................................................... 9 c. Calculation method .................................................................................. 10

4.4 Programming the electronics ........................................................................ 10 a. Tool necessary ......................................................................................... 10

b. Read-out from the electronics .................................................................. 11 c. Importing the calibration curve ................................................................. 11 d. Adjusting the electronics .......................................................................... 12

e. Liquid data changes ................................................................................. 13 f. Scaling the outputs .................................................................................. 14

g. Programming ........................................................................................... 15 h. Saving data .............................................................................................. 16

i. Printing the data ....................................................................................... 17 4.5 Adjusting the analogue outputs .................................................................... 18 4.6 Lysis pin assignments ................................................................................... 19

4.6.2 For Lysis “L8IP52” ........................................................................... 20 4.6.3 For Lysis “L6IP68” ........................................................................... 20

4.7 Trouble shooting ...................................................................................... 21

5. Maintenance ....................................................................................................... 22

6. Declaration of conformity .................................................................................... 22

7. Warranty ............................................................................................................. 22

8. Customer service ................................................................................................ 23

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1. General information Thank you for selecting a TrigasDM product for your flow measurements.

Flow meter manufacture

As a specialist in flow measurement technology, TrigasDM supplies high-quality measuring instruments, electronics and calibrators for liquids and gases.

Made in Germany

Our products are exclusively developed and manufactured in the municipality of Neufahrn, 20 km north of Munich, ensuring world-class technical know-how for our customers.

Contact

We are proud of our high-quality products and friendly customer service and welcome you as a valued customer to our growing family. You can benefit from our long-standing experience and our comprehensive technical support.

TrigasDM GmbH Tel.: +49 8165 9999 300 Erdinger Str. 2b Fax: +49 8165 9999 369

Email: [email protected] 85375 Neufahrn, Germany www.trigasdm.com

This user manual contains information on the description, operation / commissioning and maintenance of the TrigasDM linearization electronics TriLIN. For special applications, repair or further information on this or other products, please contact TrigasDM directly.

The manufacturer may modify this document without prior notice. Prior to use, request or enquire about valid documentation from the manufacturer if necessary. Warranty claims against the manufacturer may become void if invalid documentation is used.

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2. Safety regulations

2.1 Marking of important information

Important information is specially highlighted in this user manual. WARNING To avoid danger to persons, this information is marked with WARNING. CAUTION To avoid danger to equipment, this information is marked with CAUTION. NOTE Special information for operation / commissioning and maintenance is marked with NOTE.

2.2 General safety regulations

Before using the TrigasDM flow meter, this user manual and all safety instructions must be carefully read in their entirety and understood.

Take all necessary precautions to ensure the safety of personnel and equipment. These precautions include, but are NOT limited to, the following examples:

Mechanical and electrical installations must only be carried out by qualified and authorized personnel.

It must be ensured that the measuring range of the flow meter is not exceeded.

Do not install measuring instruments and cables in the vicinity of strong magnetic sources, such as electrical cables, electric motors, transformers, welding equipment, relays or high-voltage cables. These sources can cause electrical noise, resulting in incorrect pulse signals.

Flow meters, which are designed for applications in liquids are not suitable for applications in gas.

The valid safety standards (for example, in accordance with the German Occupational Safety and Health Act) must be observed for the installation and/or operation of the flow meter. Non-observance can result in DANGER to personnel.

A flow meter is a precision instrument. Do not use compressed air to clean the flow meter or check its function.

Lysis must be disconnected from the voltage source before changing the turbine with the SMART pickoff.

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3. Description

3.1 Design and measuring principle Lysis is an intelligent and compact flow rate transmitter for linearising flow meters and offers real-time compensation for viscosity, density and temperature. Moreover, it is compatible with any flow meter that is equipped with a Lysis "SMART pickoff".

Automatic sensor identification (plug & measure): SMART pickoff is a sensor that contains the calibration data of the flow meter. Every Lysis can be used with any flow measuring instrument. The assignment of the temperature to the viscosity is saved in the electronics depending on the medium. The temperature is measured by the measuring sensor (pickoff) and compensation of the density and viscosity is enabled in this manner. The output after scaling takes place both as an analogue signal 0-10 V (optionally 4-20mA) and also as a frequency signal 0-5300 Hz with a calculation time of about 1.5 to 2.5 milliseconds.

The software that is easy to operate and work with permits programming and scaling.

Flowmeter with SMART-Pickoff

Up to 15 meters cable length

Lysis

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3.2 Technical data

Input signals From the SMART pickoff via 8-core shielded and high temperature-resistant cable

Amplitude modulated carrier signal from the flow meter

Temperature signal

Saved calibration data

Linearization Up to 20 points in the assignments

Frequency/Viscosity to pulses/litre or

Frequency to pulses/litre

Temperature compensation of viscosity and density

Temperature

Temperature sensor: +/- 0.25°C (integrated in the Smart pickoff) Refresh time (Mean value) 3 milliseconds

Leak flow volume suppression 3 milliseconds

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Output signals

Frequency

- Linearized and scaled frequency 5V NPN related to analogue mass Scalable end value up to 4800 Hz Output impedance < 2.2 kOhms Accuracy 0.01% of the measured value Resolution 0.018 Hz

- Raw frequency 5V NPN related to the analogue mass (only with version 2: L8IP52)

Analogue Flow 0 – 10 volts linearised and scaled (Zero point offset) Accuracy 0.003% of the measured value Resolution 16-bit (~0.15 mV) (Optionally 4 - 20 mA extension)

Analogue Temperature (only with version 2: L8IP52) 0 – 10 volts linearised and scaled (Zero point offset) Accuracy 0.003% of the measured value Resolution 16-bit (~0.15 mV) (Optionally 4 - 20 mA extension)

Data transmission Optionally the system can be expanded via an external modem with USB serial port and a PC with Windows Operating System (we recommend Windows 7 or later) and the data can be transmitted.

Data entry Manually or as data import

Data output and storage is done completely on the electronics and on storage media

Ambient conditions Operating temperature: -40 … 125°C Storage temperature: -55…+150 °C

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3.3 Type key

Version 1: L6IP52 Pickoff page: ODU 8-pin IP68 Customer's side: LEMO 6-pin IP52 Version 2: L8IP52 Pickoff page: ODU 8-pin IP68 Customer's side: LEMO 8-pin IP52 Version 3: L6IP68 Pickoff page: ODU 8-pin IP68

Customer's side: LEMO 6-pin IP68

4. Installation / commissioning

4.1 Safety regulations

Mechanical and electrical installations must only be carried out by qualified and authorized personnel.

When working on electrical systems, the 5 rules on safety from the DIN VDE 0105 series of standards should be applied diligently and carefully: - De-energise

- Secure against being switched on again

- Ensure absence of voltage

- Connect to earth and short-circuit

- Cover or fence off live adjacent parts

4.2 Checks after delivery

Carefully unpack the product and check for cleanliness (e.g. packaging residues).

Check its condition and check for damage.

4.3 Principle of operation

a. Impact of the viscosity A turbine flow meter changes its frequency output with a change in the viscosity. In other words, the higher the viscosity, the lower is its output frequency with the same flow rate. A good display method for assessment is generally the ratio of the frequency to the factor pulses/litre (pul/lit).

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b. Compensation of the effect of viscosity A turbine flow meter has the characteristic of behaving consistently in the linear measurement range in the factor of frequency to viscosity. This is represented graphically as follows.

You can clearly identify a deviation from the ideal line in the blue line (=1.3 cSt or mm²/sec.). These calibration points of the turbine are not used for subsequent linearization and temperature compensation.

5500

6500

7500

8500

9500

10500

11500

12500

13500

1 10 100 1000 10000

Hz

Pu

l/lit 1.3 cSt

10 cSt

20 cSt

UVC Graph

5500

6500

7500

8500

9500

10500

11500

12500

13500

0 1 10 100 1000 10000

f/V

pu

l/lit 1.3 cSt

10 cSt

20 cSt

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c. Calculation method The electronics contains an assignment of the temperature to viscosity. This table is provided to the customer for programming or he can program it himself. This table must be equivalent to the current operating medium. The current viscosity is determined continuously from the current temperature and this table.

Determining the viscosity (Assignment °C to mm²/sec.)

Measurement of the current input frequency and calculation of the current factor (f/V = Frequency to viscosity)

Determining the current K factor (pul/lit) from the programmed table

Conversion of the K factor with the help of the current frequency in the current throughput (e.g. litres/min.)

Optional: Conversion of the throughput with the help of a programmed temperature/density table and the current temperature in a mass throughput (e.g. kg/min.)

Scaling and output of the current temperature at the analogue output (e.g. -50…+150°C = 0…10 volts)

Scaling and output of the current throughput at the analogue and frequency output. (e.g. 0…10 l/min. = 0…10 V = 0….2 kHz)

4.4 Programming the electronics

a. Tool necessary

Power supply 12-32 V DC

Computer with appropriate USB port and a Windows Operating System (We recommend Windows 7 or higher)

LPU software

Programming cable

Possibly a voltmeter (Ammeter) for the new comparison of the analogue outputs and functional test

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b. Read-out from the electronics

Supplying the electronics with voltage, connecting the programming cable and opening the software.

"COM Port" tab and then choose an appropriate port from the list

Reading out from the electronics with the help of the "Read EE" button.

If the data is not read out correctly, the operation must be repeated.

c. Importing the calibration curve A Trigas calibration file "*.sav" is necessary for the programming

Choose the option "Load F/V kCurve" in the "File" menu – for temperature-compensated programming (Frequency/Viscosity vs. K-factor) / – Refer to Section 4.3.

Choose optional "Load F kCurve" – for non-temperature compensated programming (Frequency vs. K-factor). After the data has been reloaded, the serial number must be compared with that of the calibrated flow meter.

Optional: Manual entry of the calibration curve is necessary only if the data is not available to you. NOTE The values must be entered with a dot as the decimal point separator. e.g. 15.45 instead of 15,46

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d. Adjusting the electronics

Cut-off (ms) Maximum waiting time for completing a signal period. If this time gets exceeded, no input signal gets detected and all outputs are set to zero.

Update rate (ms) Measurement period before a measurement result is obtained and calculated. Special case: "0" means that the calculation is already taking place after one pulse.

Recommendation: Cut Off = 2 × Update Rate

Timebase (sec.) Time constant for conversion from the K-factor and flow units.

o 1 = xxx/sec. o 60 = xxx/min. o 3600 = xxx/hour

Minimum frequency (Hz) Lowest frequency (Leakage flow rate). Below the frequency, the TriLIN displays zero at all outputs.

Crystal factor Correction factor for internal time base.

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Mode Operating mode of the electronics.

Mode Compensation Analog Output Frequency Output Memory

0 UVC Volumetric Volumetric Internal

1 None Volumetric Volumetric Internal

2 UVC Mass Volumetric Internal

3 None Mass Volumetric Internal

4 UVC Volumetric Mass Internal

5 None Volumetric Mass Internal

6 UVC Mass Mass Internal

7 None Mass Mass Internal

8 UVC Volumetric Volumetric External

9 None Volumetric Volumetric External

10 UVC Mass Volumetric External

11 None Mass Volumetric External

12 UVC Volumetric Mass External

13 None Volumetric Mass External

14 UVC Mass Mass External

15 None Mass Mass External

Mode 0-7 Data is stored in Lysis Internal EEPROM - any pickoff may be used Mode 8-15 “Smart Principles”

Data is stored in the pickoff external EEPROM. After exchanging the pickoff, data are automatically reloaded. The Pickoff should be fastened to the turbine.

Temperature offset

This allows the temperature to compensate for X°C. e.g. measured temperature: 25°C temperature offset: 2°C temperature shown: 27°C

e. Liquid data changes The data pertaining to the media can be corrected whenever desired. To do this, choose the option "Load Fluid" in the "File" menu in order to load the new data. The table can also be edited manually as an option. NOTE The values must be entered with a dot as the decimal point separator. e.g. 15.45 instead of 15,46

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f. Scaling the outputs

Frequency output

You only assign the desired scaling in the fields. You can set the units with "Mode" and "Time Base".

e.g.: Mode – 8: Frequency output, volumetric

Time Base – 60 per minute Flow / Frequency

0-100 l/min. = 0-1000 Hz

Flow, analogue output Mode – 8: Analogue output, volumetric Time Base – 60 per minute

0-100 l/min. = 0-10 V (possibly 4-20 mA) Volts (bits) – A/D value is calculated automatically

Temperature, analogue output -50 – 150°C = 0-10 V (possibly 4-20 mA)

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g. Programming To program the electronic press the program keys: 1. "Write Data to RAM" - Saves the data in RAM - after power failure this data will not be saved 2. "Write Data to Internal EE" - Saves the data in EEPROM Lysis 3. "Write Data to External EE" - Saves the data in EEPROM smart pickoff After successful programming has been completed, the message appears:

Attention! The period of time after pressing the "Write ..." and the "Succes" message should be 3sec. If not, the process should be performed again. In Lysis should always both EEPROM can be programmed. It is advisable after programming: a. Turn the supply voltage off for about 3 seconds and then turn it on again b. Read and check data from RAM c. When lysis has been programmed with "Smart Principles" (Mode 8-15), you can exchange the Smart pickoff and re-reading the data. - Unplug Smart pickoff - wait 2sec. - Insert new Smart pickoff - Read data

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Run Live After programming, the program enables the data to be checked. The Live mode is started by pressing the "Run Live" button.

h. Saving data Save the settings in the "File" menu option with "Save All" (*.lin) If you need further information, please contact us.

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i. Printing the data You need Excel 2010 or later to print the data. Open the Excel table enclosed.

Confirm the security warning with "Activate contents" Load the saved data with the "Load LIN" button. Enter the serial number of the electronics. Print out the report.

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4.5 Adjusting the analogue outputs

NOTE The adjustment should be carried out only with a calibrated voltmeter or ammeter.

Connect the electronics as you do for programming with the data cable and

power supply.

Connect the voltmeter (or ammeter) to the analogue output to be calibrated.

Read out from the electronics with "Read EE".

There are arrow keys and scroll bars located to the right side of the scaling fields

with the help of which the bit values of the respective analogue outputs can be

changed.

With the upper scroll bar, you can set the minimum value on the multimeter (e.g.

0 V for 0-10 V), and then with the lower scroll bar you can set the maximum

value (e.g. 10 V for 0-10 V). Press STOP at the end -> repeat this for the second

output.

To program the electronic press the keys: o „Write Data to RAM“ and

o „Write Data to Internal EE“

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4.6 Lysis pin assignments

Lysis is an intelligent and compact flow transmitter. It linearises sensor output signals and compensates viscosity, density and temperature in real time for the linearisation of the flow meters and for correction of viscosity.

4.6.1 For Lysis "L6IP52"

Connections:

Input: Output: ODU (GL1LOC-P08QF00-0000) Lemo (FWG.1B.306.CLD)

(STANDARD) OUTPUT (6-pin)

1 Signal + (Flow rate 0-10 V)

2 Signal - (Analogue mass)

3 Signal + (Flow rate frequency linearised-TTL)

4 Power + (9-32 V DC)

5 Power - (0V)

6 Programming

CAUTION: Pin-2 (Analogue mass) should not be connected with pin-5.

INPUT

1 RF Coil

2 3v3

3 CS T

4 CS E

5 SDI

6 SCLK

7 SDO

8 GND

Input Measured value sensor (Lysis Smart pickoff)

Output Customer's side

1 1

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4.6.2 For Lysis “L8IP52”

Output:

Lemo (FWG.1B.308.CLD)

4.6.3 For Lysis “L6IP68”

Output:

Lemo (HEA-0B.306.CLNSV)

(STANDARD) OUTPUT (8-pin)

1 Signal + (analog 0-10 V)

2 Signal - (Analog 0V, Flow rate and temperature output )

3 Frequency output

4 Power +

5 Power -

6 Programming interface

7 Analog 0-10V Temperature output

8 Raw frequency

ACHTUNG: Pin2 (Analogmasse) trennen von Pin5 Stromversorgung Masse

(STANDARD) OUTPUT (8-pin)

1 Signal + (analog 0-10 V)

2 Signal - (Analog 0V, Flow rate and temperature output )

3 Frequency output

4 Power+

5 Power-

6 Programming interface

ACHTUNG: Pin2 (Analogmasse) trennen von Pin5 Stromversorgung Masse

1

1

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4.7 Trouble shooting

4.7.1 Electronics has no output signal a. Check supply voltage (9-32V DC)

i. Standard current consumption is (depending on the configuration) up to

40mA.

- Current > 100mA - board defective.

- Current = 0 mA - electronics connected incorrectly.

b. Flowmeter functionality check

i. Attention! The turbine should not be tested with compressed air - turbine may be damaged. ii. Flow simulation: turbines pickoff evaluation – Remove pickoff from the turbine and move an iron element (not stainless steel) under the pickoff back and forth.

iii. Pickup Resistance Measuring - between pin 1 and 8 RF Sensor: 10Ω +/- 15%

c. Check the condition of the electronics (if available) connect electronics

with PC and RUN LIVE Switch Mode

→ Programming - Point 4.4

4.7.2 Baseline value appears to be wrong

a. If a problem is noted - RUN LIVE check mode. b. Compare Analog temperature output versus medium(liquid, gas) temperature.

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5. Maintenance The TrigasDM TriLIN is maintenance free. Depending on e.g.:

Type,

System design,

Environmental or operating conditions,

Measuring liquid and

age However, flow meters must be recalibrated and replaced if required. NOTE Independent consulting and calibration services, among others, are provided by TrigasFI. TrigasFI has a certified recording system and an in-house calibration laboratory. The calibration results, which are recorded in a database, form the basis for the determination of customer-specific and application-specific calibration intervals.

6. Declaration of conformity The TriLIN from TrigasDM is not subject to the WEEE directive and complies with the RoHS directive. The TriLIN complies with the EU Directives applicable (EC Declaration of Conformity).

CE: EN50081-1, EN50082-1 and EN61010

7. Warranty

TrigasDM GmbH (supplier) guarantees that all the equipment supplied hereunder is flawless with regard to materials and workmanship, provided that the equipment was selected in accordance with its intended purpose, installed properly and not operated incorrectly. Only the current "General Terms and Conditions" of TrigasDM apply as the T&Cs. You can either request a copy of the terms and conditions by calling the telephone number +49 8165 9999 300, or visit our website at www.trigasdm.com for information.

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8. Customer service

If you should require customer service for your TrigasDM products, please contact our customer service department. All requests for information concerning a specific measuring instrument must include the type and serial number of the measuring instrument. We will provide you with all possible assistance over the phone. If your equipment has to be examined or repaired at our plant, whether within the warranty period or after its expiration, our customer service department will issue you with an authorisation number, which is used to initiate our quick and efficient customer service processing. On receipt at our plant, your equipment will be repaired or replaced without delay and returned to you within the shortest period possible.

Please do not return any products without an authorisation number. TrigasDM GmbH Tel.: +49 8165 9999 300 Erdinger Str. 2b Fax: +49 8165 9999 369

Email: [email protected] 85375 Neufahrn, Germany www.trigasdm.com