Clamp-On Type Ultrasonic Flowmeter for Liquid Measurement

Psonic-S1 GENERAL SPECIFICATION

GS.No.GBM006E-2

Head Office (Tokyo): Phone. 81-3-3360-5121. Fax. 81-3-3365-8605 Beijing Office: Phone. 86-10-5867-4711. Fax. 86-10-5867-4713Overseas Branch Offices: Seoul, Singapore and Taipei

http://www.oval.co.jp

Liquid

GENERALThe Psonic-S1 is a clamp-on type ultrasonic flowmeter developed for liquid measurement. It has sensors laid on the outside of the pipe to accept incoming ultrasonic waves.It calculates the flowrate by measuring the propagation time of ultrasonic wave from the fact that the propagation time of ultrasonic pulse changes with the velocity of the liquid. The ultrasonic flowmeter can measure a variety of fluids including industrial water, agricultural water, wastewater, seawater, purified water, and water solution.

FEATURES 1. Clamp-on type flowmeter requires neither disconnecting

the pipe nor stopping the flow when installing the sensor. In addition, because there is no pressure loss, the cost for installing and operating the flowmeter is low.

2. Small and lightweight design facilitates installation.3. By use of dedicated PC communication software

(UFWconfig), setting of the flowmeter is easy.4. Though it is a low-priced flowmeter, it has the functions

equivalent to higher-level models including log and self-diagnosis.

PRINCIPLE of MEASUREMENT Principle of Operation

Propagation time difference method is to obtain flow velocity V in a pipe from time difference Δt between propagation time td of ultrasonic waves transmitted from the upstream sensor to the downstream sensor and propagation time tu of ultrasonic waves transmitted from the downstream sensor to the upstream sensor.

td= +τL

C+Vcosθ

tu= +τL

C－VcosθL: Length of propagation path of ultrasonic pulse

: Fixed delay timeC: Sonic velocity in fluid

Δt=tu－td=2LVcosθ

C2

Propagation time difference Δt is expressed by flow velocity V in the following equation.

Sensor end

Oscillator

LiningPipe wall

Flow velocity V

Flow direction

P1

P2

Ld

Shoe

θ

Therefore, flow velocity V can be expressed as shown below by propagation time difference Δt.

V= ・ΔtC2

2LcosθAlso by using arithmetic average t0 of tu and td for sonic velocity C, the arithmetic expression of flow velocity can be expressed as shown below.

V= ・ΔtL

2（t0－τ）2cosθFlow velocity V obtained here is the average flow velocity on the measurement line between sensors; therefore, it is different from average flow velocity V at the cross section of the pipe. Accordingly, flowrate Q is then given by the following equation by using flowrate compensation coefficient k.

Q= ・AV・A=Vk

Transmission method and Reflection method

In case of V method (reflection method), the length of propagation path is twice that of Z method (transmission method); therefore, the propagation time is set longer and is more advantageous in measurement accuracy. However, which method to be adopted shall be determined by the bore size, piping material, etc.

Sensor end P1 P1 P2

Sensor end P2Z method (transmission method) measurement

V method (reflection method) measurement

V VL

θ θ θPipe undermeasurement

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GBM006E-2Psonic-S1

STANDARD SPECIFICATIONS Sensor Specifications

Item Description

Applicable fluids

Homogeneous fluids where ultrasonic wave can propagate (clean water, waste water, industrial water, river water, ocean water, purified water, etc.)Turbidity: 10000mg/L (degree) max.Note) The fluid must not contain bubble. Note) Cannot support slurry.Note) For application to fluid other than water, contact OVAL office.

Fluid temp. range -20 to 60°C (fluid and ambient)Nominal size 25mm to 600mm

Piping materials

Steel pipe, SUS pipe, polyvinyl pipe, ductile cast-iron pipe, copper pipe, or other pipe made of material that can transmit ultrasonic wave steadily※1: Maximum applicable bore size may not satis by the requirement depending on the material or status of piping.※2: In case of lining pipes, the lining must contact with the main pipe.(Lining material is tar epoxy or mortar, or the like.)

Flow metering range 0 to ±10m/sNumber of metering lines 1 line

Metering system Ultrasonic pulse transmission time difference system

Factory calibration accuracy

25mm to 40mm ±2.5% of reading (±0.025m/s at a flowrate less than 1m/s)50mm to 90mm ±2.0% of reading (±0.020m/s at a flowrate less than 1m/s)100mm to 250mm ±1.5% of reading (±0.015m/s at a flowrate less than 1m/s)300mm to 600mm ±1.0% of reading (±0.010m/s at a flowrate less than 1m/s)

Note) Specification when measures volume flow.Note) The pipe must be full of liquid and the flowrate distribution must be ideal.Note) The flowrate must be 0.3m/s or more with specified length of straight pipe secured.

Sensor material Resin (PBC, PMMA)Protection class Standard: IP65 (Option: IP67)

Transmitter SpecificationsItem Description

Transmitter mounting configuration Separately mounted type

Power supply Standard: AC100 to 230V ± 10%, 50/60Hz ± 2HzOption: DC24V ± 20%

Power consumption 19VA max. at 100VAC, 23VA max. at 200VAC, 9W max. at 24VDCOperating temp. range -10 to +50°COperating humidity range 90%RH max. (without dew condensation)

Protection class IP65Installation environment Direct sunlight, radiation heat, corrosive atmosphere, and explosive atmosphere must be avoided.

Housing material ABS resin (Color: white gray)

Analog output

Number of channels 1 channelOutput content Instantaneous flowrate

Output type 4 to 20mA, 20.8mA at burnoutMax. allowable load resistance: 600Ω, insulated output

Output accuracy ±0.2%F.S.

Contact output

Output content Contact pulse, alarm, forward and reverse flow judgmentOutput type Photocoupler outputContact capacity DC48V, 0.4AMax. output rate 25Hz (Selected from among pulse widths 20, 100, 500, and 1000ms)

USB communicationFunctions Sets flowmeter by PC communication software (UFWconfig). Displays measurement value,

Displays receiving waveform, Reads log dataUSB cable length 3m max.Connector USB B terminal (hot plugging available)

Optional input (1) Analog input: 4 to 20mA, 1 output(2) Digital communication: RS-485 (MODBUS-RTU), Transmission length: 1km max.

Functions

(1) Logging function: Instantaneous mass flow, Instantaneous flowrate, Forward and reverse total value, Measurement status, Error status, etc. Period: 0 to 3600s (Initial value: 60s)

(2) Low flowrate cutoff: Settable at option (Initial value: 0)(3) Self diagnostic function(4) Simulated output: Analog current output, Total pulse count output

Display 16-digit, 2-line LCD display with backlightInstantaneous mass flow, Flowrate, Forward total flowrate, Reverse total flowrate, Status code, etc.

Explosionproof specifications Nonexplosionproof

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GBM006E-2Psonic-S1

DEVICE DIFFERENCE CHARACTERISTICS(Reference) Nominal size: 300 to 600mm

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5

-4.0

-4.5

-5.00 1 2 3 4 5 6 7 8 9 10

Flow velocity (m/s)

Range of factory calibration accuracy±1.0% of meter reading (±0.010m/s for flow velocity less than 1m/s)

Instrumental error (%)

PRODUCT CODE EXPLANATION

ItemCode No.

Description① ② ③ ④ ­− ⑤ − ⑥ ⑦ ⑧ ⑨ ⑩

Model U P S 1 − Ultrasonic flowmeter Psonic S1

Power supplyA − AC 100 to 230V ± 10%, 50/60Hz ± 2HzD − DC 24V ± 20% (※1)

Control No. 1 Always 1

Sensor2 IP65 sensor3 IP67 sensor (※1)

Sensor cable 3 30m x 2 pcs.

Option input/output

0 None1 Digital communication (RS-485 MODBUS-RTU)2 Analog input (1ch)3 Digital communication, Analog input

Optional parts

0 None1 PC communication software (※2)2 Mounting plate (For wall-mount, 50A stand pipe)3 PC communication software, mounting plate (For wall-mount, 50A stand pipe) (※2)

(※1): Same as code (9) and (10), optional item.(※2): PC communication software (UFWConfig) is available for Windows 7, Vista, and XP.

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GBM006E-2Psonic-S1

Flow Range※ Reference value of maximum flowrate at each nominal size with pipe inner diameter = nominal size※ Actual maximum flowrate differs depending on the inner diameter of the pipe to be used.

Transmitter

Power supplyAC100 to 230V±10％ 50/60Hz ±2HzDC24V±20％ (Option)

Analog output (DC4 to 20mA)(Max. allowable load resistance 600Ω)

DC4 to 20mA current receiving device such as indicator and recorder

Integration counter, etc.(Selected by integration, alarm, etc.)

MODBUS-RTU compliant device

Setting, monitoring, etc. by PC communication software

Contact output (no-voltage contact)(Contact capacity 48V, 0.4A)

Digital communication* Option (RS-485)

Pressure gauge, etc.Analog input (DC4 to 20mA)

Input resistance: 300Ωmax.Max. allowable input current: 25mA（ ）

* Option

USB communicationCable length: 3m max.

Upstream side

Flow direction

Downstream side

Sensor

Coaxial cable30m max.

Mounting bracket

BASIC CONFIGURATION

Nominal size (mm) Max. flowrate (m3/h)

25 17.640 45.250 70.665 11980 180

Nominal size (mm) Max. flowrate (m3/h)

100 282125 441150 636200 1130250 1760

Nominal size (mm) Max. flowrate (m3/h)

300 2540350 3460400 4520500 7060600 10100

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GBM006E-2Psonic-S1

(226)

210

170

(296

)

251

218

4-External mounting foot (Accessory)

4.6 x 22.8 long hole

(119)

35

3083

20

65

Stainless beltSensor mounting by stainless belt (65mm or more)

Sensor mounting by thumbscrew (50mm or less)

188

75

135

Clamping device

Holding fixture

Thumbscrew

Coaxial cableSensorRetaining plate

44

36

34

32

（34）

DIMENSIONS (Unit: mm)

Transmitter

Sensor Sensor mount※ Which mounting method, V method or Z method, to be adopted is determined

by bore size, piping material, etc.

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GBM006E-2Psonic-S1

CONNECTION AND WIRING SPECIFICATIONS Appearance of Terminal Unit

Terminal assignmentName Terminal No. Description

Power Input AC-IN L, NTB1

AC power input (Connect "N" to ground and "L" to ungrounded side.)Power Input DC-IN +, − DC power input (Optional)

Protective Earth Protection grounding terminal With AC power specifications, power cable connected to grounding wire

Functional Earth Functional grounding terminal With DC power specifications, power cable connected to grounding wire

Contact Output +, − TB2 Contact output4-20mA Output +, − TB3 Analog outputAnalog Input +, − TB4 Analog input (Optional)RS-485 +, −, Shild TB5 TB6 RS-485 (MODBUS-RTU) output

Transducer Cable Up, Down − Connection to sensor. Upstream sensor connected to "UP" and downstream sensor to "Down"

Analog output terminal

TB3 4-20mA Output

TB3

Analog input terminal

TB4Analog Intput

TB4

* Option

RS-485 terminal

TB5, TB6

Contact Output

TB5

* Option

TB6

Contact output terminal

TB2

TB1

Power input terminal (depending on spec.)

TB1

AC power specification

RS-485

DC power specification

Power Input

Power Input

TB1

Functional grounding terminal

Protection grounding terminal (depending on spec.)

AC power specification

Functional grounding terminal

DC power specification

Sensor end terminal

Left: Up side, Right: Down side

Transducer Cable

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GBM006E-2Psonic-S1

Precautions on Wiring(1) The cable grounding holes under the transmitter case are blocked by "seal pins" at the time of shipment. Remove the seal

pin from the hole as necessary when wiring is required.

The typical tightening torque for connecting cable ground is 1.5N・m.

(2) Turn off the main power before starting wiring.(3) Isolate the coaxial cable used for connection between transmitter and sensor from the power line or the like. Lay the

coaxial cable so that power equipment cannot approach it.(4) For the wiring between transmitter and external equipment, refer to page 6.(5) Connect the coaxial cable to the "Up" side of the upstream sensor and to the "Down" side of the downstream sensor.(6) Be sure to adopt the power supply for instrumentation. Never share the power supply with motive application.(7) Pay full attention to the polarity when implementing wiring.(8) Use shielded wires for power and output wirings.(9) Use the equipment in the grounding environment better than D class.

PRECAUTIONS ON INSTALLATION

Installing the TransmitterSelect the installation place in consideration of the following requirements.(1) Ambient temperature -10 to +50°C and away from heater or direct sunlight(2) A place not exposed to wind and rain for a long time(3) A place not exposed to dust and corrosive atmosphere(4) A place convenient for maintenance and check(5) A place where the distance between transmitter and sensor can be connected by the coaxial cable of 30m long(6) A place without a risk of inductive interference by power equipment and relevant wirings

Piping Layout (Reference)

同同同同同同同同同同同同

Transmitter

Sensor

Thick steel power line tube

(30m or less)

Flowmeter cabin (pit)

5D min. 10D min.

Flow

90°bent

(Note)

(Note)

Pipe (Inner dia. D)

Valve

Pump

Pump

Power supply

Output signal

(Note) If there are pump, valve, shrinkage pipe, expanding pipe, junction pipe or the like upstream or downstream of the flow, consult with OVAL office.

Cable trough

Output Pump

Coaxial cable

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GBM006E-2Psonic-S1

Selecting the place to mount the sensorSelect the place in consideration of the following conditions.The performance of the ultrasonic flowmeter is greatly dependent on the mounting accuracy of the sensor. Pay full attention when installing the sensor.(1) Select the place for installing the sensor where the pipe is completely filled with fluid even if the flow is suspended.(2) Generally, straight pipe meeting the piping requirements and required straight pipe length shown in page 9 is required

upstream and downstream the mounting location of the sensor.(3) Select the piping place where there is little obstruction in the flow. If there are factors that may cause disturbance in the flow such as pump, valve, shrinkage pipe, expanding pipe, joint pipe

or the like in the upstream or downstream of the pipe, consult with OVAL office.(4) In some case, air pocket or deposit may exist just above and below the measurement pipe. Avoid these places when

installing a sensor. Also avoid a junction place such as flange or welded part and select the flat and smooth surface of the pipe as much as

possible.(5) When installing the sensor, select the place where ambient temperature is -20 to 60°C and away from heat generating

equipment and not exposed to direct sunlight.(6) When installing the sensor, avoid the environment that may be exposed to wind and rain for a long time. Otherwise,

deterioration in the performance of the sensor may be accelerated.

Problem Piping condition Remarks

Air pocketPoorly filled pipe

When rising piping is used, installing the sensor at the places (2) and (3) may cause air pocket or poorly filled pipe, resulting in measurement error.Install the sensor in the place of (1).

Poorly filled pipeIf the downstream side of the sensor location is open to the air, poorly filled pipe may be caused.

DepositIf there is deposit or accumulation in the sensor location, measurement error may occur.

Air trappingIf air trapping occurs in the tank located upstream the sensor position, poorly filled pipe may be caused.

Flow direction

Flow direction

Flow direction

Flow direction

Air pocket

② Improper③ Improper

Improper

Improper

Open

①

Improper

Deposit

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GBM006E-2Psonic-S1

Category Upstream side straight pipe length Downstream side straight pipe length

�0°bent

Tee

Expanding pipe

Shrinkage pipe

Valves

Pump

[D is nominal size of a pipe.]

10D以上

10D以上

0.5D以上

1.5D以上

D

10D以上

L＞=10DL＞=5D

L＞=5D

L＞=5DL＞=10D

L＞=50D

L＞=10DL＞=30D

L＞=10DL＞=50D

L＞=30D

検出器

仕切弁逆止弁

P

STRAIGHT PIPE LENGTH REQUIRED

Sensor

10D min.

10D min.

10D min.

1.5D min.

Gate valveCheck valve

0.5D min.

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GBM006E-2Psonic-S1

PC COMMUNICATION SOFTWARE

By the use of PC communication software, setup, changing various kinds of setting information, waveform monitoring, etc. are available with this flowmeter. Here, outline of the major functions is introduced.

You can read, display, and save the log data as a file from the flowmeter. On the display, you can check the instantaneous flowrate, instantaneous flow velocity, forward and reverse integrated value, measurement status, error status, and analog value every day and hour and select any data row for graph display.

You can check the receiving waveforms of ultrasonic waves in the UP side and DOWN side, respectively. In addition, the peak value of the receiving waveform is indicated by level to facilitate judgment on whether ultrasonic wave reception is good or bad.The gain value is adjusted to the most appropriate value by the automatic gain control function.

(1) Measurement information of flowmeterYou can read instantaneous flowrate, flow velocity, output status, measurement status, error code, and gain value as measurement information in real time.

(2) Trend graph of measurement valueTrend graph can be displayed.With horizontal axis as measurement time, you can set the vertical axis at your option from the following items.(Forward and reverse flow integrated value, reverse flow integrated value, instantaneous flowrate, instantaneous flow velocity, and analog value)

(1) Setup wizardInitial setting is available by the entry of various kinds of information on specifications as guided by the setup wizard.

(2) Individual settingApart from the setup wizard, checking and changing the parameters and saving and reading the set parameters are possible.

Checking the measurement status

Checking receiving waveform

Log data

Various kinds of settings

Transmitter USB port connector

Specifications required by PCOperating System: Windows7, Vista, XPPort: USB port

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GBM006E-2Psonic-S1

OPTION Sunshade cover for sensor

　This is a sunshade cover for protecting the plastic sensor against direct sunlight when the instrument is installed outdoors.

Specifications of pipe integrated type : 　Shipment with piping (inline type) is also possible. (Built-to-order production)

High-accuracy actual flow calibration and traceability are obtainable with the inline type.

Various kinds of customization are available as required for piping. Contact OVAL representative.

　・Available piping specifications Nominal size : 25 to 200 mm

Material : Stainless steel, Steel, PVC

Category : JIS pipe (product with lining is available)

Sunshade cover for sensor

Configuration example of pipe integration type :

195

M4 screw

Support rod Sunshade cover

Holder

86

55 (59.

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GBM006E-2Psonic-S1

The specification as of Mar., 2013 is stated in this GS Sheet. Specifications and design are subject to change without notice.

Sales Representative:

初版 改訂 印刷12.05 13.03

GS.No.GBM006E

1. Purpose of use

2. Fluid to be measured (※)

□ Water

□ Other ( 　　　　　　　　　　　)

When you select Other, write the property value of the fluid used regularly below.

・Sonic velocity of fluid (　　　　 　m/s)　・Density of fluid (　　　 　 　kg/m3)　・Dynamic viscosity (　 　　 　mm2/s)

3. Applicable pipe (※)

(1) Bore size

　□ 25mm □ 40mm □ 50mm □ 65mm □ 80mm　□ 100mm □ 125mm □ 150mm □ 200mm □ 250mm　□ 300mm □ 350mm □ 400mm □ 500mm □ 600mm　□ Other (　　　　　　　　　)

(2) Material

　□ Steel pipe □ SUS pipe □ Polyvinyl chloride □ Ductile cast iron pipe 　□ Copper pipe □ Other ( 　　　　　　　　　)　If you select Other, write the sonic velocity of the pipe used regularly below.　・Sonic velocity of pipe ( 　　　　　　　　m/s)

(3) Lining

　□ None □ Epoxy □ Mortar □ Rubber □ PVC　□ Other (　　　　　　　　　)　When you select Other, write the sonic velocity of the lining used regularly below.　・Sonic velocity of lining ( 　　　　　　　　m/s)

(4) Actual measurement value ( * )

　・Pipe outer diameter ( 　　　 　mm） ・Pipe thickness (　　　　 　mm） ・Thickness of lining ( 　　 　　mm)

(5) Sensor mounting method

　□ V method □ Z method

4. Condition for use Min. Regular Max.

(1) Flow range (※)(2) Flow velocity range m/s m/s m/s(3) Fluid temp. (※) °C °C °C(4) Fluid pressure MPa[G] MPa[G] MPa[G](5) Ambient temp. °C °C °C(6) Ambient humidity % RH % RH % RH

5. Unit (※)

(1) Unit of flow

　Unit of flow (Numerator) :　□ L/　　　　□ m3/　　　　□ g/　　　　□ t/　Unit of flow time (Denominator) :　□ /s　　　　□ /min　　　　□ /h　　　 □ /D

(2) Unit of integration (Pulse weight) : (　　　　　　　　　 　)　　□ L　　　　 □ m3　　　 　□ g　　　　 □ t

6. Output signal (※)

(1) Analog output　　　　□ Used　　　□ Not used

　・4mA flow value (　　　　　　　　)　・20mA flow value (　　　　　　　　)

　※Settable range: −99999 ～ +999999

　※Unit of flow is the same as the unit of flow in item 5 (1).

(2) Contact output　　　　□ Used 　　　□ Not used

　・Detail of contact output　□ Always open　 　　□ Always closed　　 　□ Forward integrated pulse　　 　□ Reverse integrated pulse　□ No wave alarm　 □ Failure alarm　 □ No wave and failure alarm　 □ Forward and reverse judgment output

　※Integrated pulse width

　□ 20ms　　　□ 100ms　　　□ 500ms　　　□ 1000ms　　　　　※Max. output frequency = 25Hz

　・Inversion of contact

　□ OFF　　　□ ON　　　　※OFF: a contact operation, ON: b contact operation

7. Alarm (※)

　□ Used 　　　□ Not used　・Upper alarm level ( 　　　　　　　　)　・Lower alarm level ( 　　　　　　　　)　　※Settable range: −99999 ～ +999999

　※Unit of flow is the same as the unit of flow in item 5 (1).

8. Low flow cutoff (※)

　□ Used 　　　□ Not used　(　　　　　　　　)

　※Settable range: −99999 ～ +999999

　※Unit of flow is the same as the unit of flow in item 5 (1).

9. Selecting option ※ Multiple choice permitted

　□ DC power supply spec.: 24VDC±20% □ PC comm. software: UFW config　□ Analog input: 4 to 20mA, 1 input □ Parameter setting: Major parameters are set by OVAL. 　□ Digital communication: RS-485 (MODBUS-RTU) output

10. Remarks

When you make inquiries, please state the following:(Fill in the blanks or check □ with mark.) ※ When you select "Parameter setting" for option, be sure to full in the place marked (※).