Cla-val E-flowmeter User manual

CLA-VAL e-FlowMeter

Vortex Flow Meter

CLA-VAL Europe www.cla-val.ch [email protected] 1-LIN041UE C 11/20

User Manual

CLA-VAL e-FlowMeter

Vortex Flow Meter

CLA-VAL Europe www.cla-val.ch [email protected] 2-LIN041UE C 11/20

Table of Contents

1Introduction........................................................................................................................ 3

1.1Precautions Before Starting ......................................................................................................3

1.2Default Calibration and Set Time ..............................................................................................3 

1.3General Disclaimer ...................................................................................................................3

1.4Environmental Protection..........................................................................................................3

1.5Typography...............................................................................................................................3

2Operation of the e-FlowMeter ...........................................................................................4

3Installation of the e-FlowMeter .........................................................................................6

3.1Installation Locations ................................................................................................................6

3.2Installation Instructions .............................................................................................................7

3.3Installation and Removal...........................................................................................................7

3.3.1Materials Required for Installation .....................................................................................................7

3.3.2Installation..........................................................................................................................................8

3.3.3Removal Instructions .......................................................................................................................10

3.3.4e-FlowMeter Wiring..........................................................................................................................12

4Specification ....................................................................................................................13

4.1Calibration...............................................................................................................................13

4.2Technical Data........................................................................................................................13

4.3Flow Parameters Factory Calibrated ......................................................................................14

4.4Dimensions .............................................................................................................................14

5Maintenance and Repair .................................................................................................15

5.1Routine Maintenance..............................................................................................................15

5.2Cleaning Debris from Measurement Cylinder .........................................................................15

5.3Dealing with Sensor Tip Damage ...........................................................................................15

6Software and Firmware ...................................................................................................16

6.1Connexion PC / e-FlowMeter..................................................................................................16

6.2Firmware Update (Internal Software)......................................................................................17

6.34-20 mA, Pulse and Pulse Digital Ouput Configuration ..........................................................19

6.4Calibration...............................................................................................................................20

CLA-VAL e-FlowMeter

Vortex Flow Meter

CLA-VAL Europe www.cla-val.ch [email protected] 3-LIN041UE C 11/20

1 INTRODUCTION

1.1 PRECAUTIONS BEFORE STARTING

Before use, please connect to our webside www.cla-val.ch to:

Download and install the USB driver on your PC [Refer to the driver USB installation manual (LIN006UE)]

Download and install the latest version of the product software on your PC

Check that the product has the latest firmware version

1.2 DEFAULT CALIBRATION AND SET TIME

: By default, the e-FlowMeter is factory calibrated according to the DN and the valve model requested see chapter 4.3

« Flow Parameters Factory Calibrated ». But it is possible to change some parameters, for examples values of the 4 mA,

20 mA, pulse weight and pulse width by using the e-FlowMeter Software available on our website www.cla-val.ch

1.3 GENERAL DISCLAIMER

In accordance with our policy of continuous development and improvement, CLA-VAL Europe reserves the right to modify or

improve these products at any time without prior notice. CLA-VAL Europe assumes no liability or responsibility for any errors

or omissions in the content of this document.

1.4 ENVIRONMENTAL PROTECTION

Help to preserve and protect the environment. Recycle used batteries and accessories.

1.5 TYPOGRAPHY

Throughout this manual, following typographical conventions and symbols have been adopted to help readability:

a. "Bold":Menu, command, tab and button.

b. BOLD ITALIC: Important information.

c. (1): Reference numbers of images.

d. www.cla-val.ch: Internet address.

e. : Some tips.

f. : Warning!

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2 OPERATION OF THE E-FLOWMETER

The CLA-VAL e-FlowMeter is a vortex shedding insertion flow meter designed to be factory assembled or retrofitted into a

CLA-VAL Automatic Control Valve to provide accurate flow measurement data without the need to install a separate meter.

Configured to be installed in the inlet tapping of a CLA-VAL Automatic Control Valve, the e-FlowMeter can be used in valves

directly downstream of a turbulent flow such as elbows, valves or reducers. The e-FlowMeter employs an innovative and

patented swivel mechanism allowing the meter to be inserted into tappings as small as 1/2".

The e-FlowMeter measures and transmits flow information as a 4-20 mA signal, digital pulse or pulse. It can be directly

connected to a SCADA system, various market loggers or products in the CLA-VAL e-Line range.

e-FlowMeter

See chapter 3 «Installation of the e-FlowMeter» for installation

CLA-VAL valve

e-FlowMeter

Electronic housing

Power supply and

signal output

Piezoelectric

sensor

Insert

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Vortex Flow Meter

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Karman Vortex Street

The e-FlowMeter is a vortex shedding insertion flow

meter, based on the phenomenon of generating an

alternating series of vortices called «Karman vortex

street».

When the fluid encounters an obstacle placed in the

axis of fluid flow, it divides and creates small vortices

alternating on either side downstream of the obstacle.

The frequency of vortex shedding, or generation of

vortices is directly proportional to fluid velocity. These

detached vortices generate variable pressure zones

that are detected in the form of short bursts of

pressure, using a measuring sensor placed

downstream of the obstacle.

Frequency measurement

The frequency of pressure surges or generation of vortices is

counted using a piezoelectric crystal encapsulated in the

sensor head. The latter is connected by 2 wires to the circuit

board for signal processing.

Measurement cylinder orientation

Upon insertion of e-FlowMeter in the valve, the measurement

cylinder is oriented parallel to the direction of flow. After

inserting the CLA-VAL tool which allows 90 degree rotation of

the measurement cylinder, it is locked in position by the

piezoelectric sensor insert. This unique 90 degree swivel

mechanism makes it possible to increase the length of the

measurement cylinder up to 40 mm allowing stabilization of

the fluid. This unique design allows it to be inserted into a

valve body tapping of ½".

Signal processing and output information

Existing Vortex flow meters operate in turbulent steady

flow defined by a Reynolds number exceeding 5’000.

This flow regime establishes stable and easily

detectable «Karman vortex street» using

unsophisticated electronics. Velocities are detected, in

general, above 0.5 m/s.

Through the innovative electronic card developed by

CLA-VAL, e-FlowMeter can measure flow from a

velocity of 0.1 m/s to obtain an accurate signal. This is

then converted to 4-20 mA, pulse or digital pulse to suit

the desired application.

Bluff body Piezoelectric

sensor The path of the

Karman Vortex street

Printed Circuit Board

Piezoelectric

sensor

Measurement

cylinder

Insert

Bluff body

Flow direction

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3 INSTALLATION OF THE E-FLOWMETER

3.1 INSTALLATION LOCATIONS

Optimum Installations Unacceptable Installations

In Inlet Tapping In Outlet Tapping

Downstream of an Elbow (Vertical rise) Downstream of double Elbows

(Directly) Ouside Elbow Inside of an Elbow

> 5 Pipe Diameters 1 to 5 Pipe Diameters

Directly upstream of a CLA-VAL H-Strainer (1)* On discharge of a Pump

Pipe Reducer Upstream

*(1) Needs a special calibration, contact CLA-VAL

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3.2 INSTALLATION INSTRUCTIONS

1- All installations, adjustments and maintenance should be carried out by a competent person.

2- Do not exceed the maximum ratings given in the specifications and printed on the label.

3- The electrical connections should be made as described in the user’s manual.

4- Before all maintenance operations, shut down the power supply.

: DO NOT ATTEMPT TO OPEN THE PRODUCT AS THIS WILL INVALIDATE THE WARRANTY!

3.3 INSTALLATION AND REMOVAL

3.3.1 MATERIALS REQUIRED FOR INSTALLATION

3.3.1.1 Insertion Tool

The insertion tool is not provided with the e-FlowMeter.

The insertion tool is needed for the installation and removal of the e-FlowMeter in a CLA-VAL valve. It allows the rotation of

the measurement cylinder in the right position.

The insertion tool with a length of 165 mm is used for e-FlowMeter sizes 1,2a and 2b, the insertion tool with a length of

368 mm is used for e-FlowMeter sizes 3 and 4.

3.3.1.2 Power supply for pulse and digital pulse output

There are 2 ways to power the e-FlowMeter for the pulse output. The first is 5 VDC, the second is 6-24 VDC with stabilized

power supply, battery, turbine e-Power MP or IP. 3 mA minimum are required (see schematic chapter 3.3.4).

3.3.1.3 Power supply for 4-20 mA output

The voltage needed is 8 - 32 VDC, 20 mA minimum are required. Take care that the loop is closed to obtain a signal

4-20 mA.

3.3.1.4 Cabling

The e-FlowMeter has a 3 or 10 meter cable with 12 wires of 0.22 mm

supplied and attached as a factory standard. If

additional lengths of cable are needed, the connections should be made with 0.22 mm

or larger wire and may need to be

shielded in some environments where high electrical noise may exist. If using shielded cable, one end of the shielding

should be connected to an earth, such as piping system fitting, etc.

Score marks

Locking collar

Insertion Tool Knurled screw

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3.3.2 INSTALLATION

CARE OF THE EQUIPMENT!

The tip of the flow sensor is a precision-built part of the equipment and must be handled with care.

When the flow sensor is not installed, sensor must be protected by the yellow protection cap.

Physical damage to the flow sensor affects the performance and invalidates the warranty.

IMPORTANT !

a) Isolate the control valve using main line isolation valves.

b) Bleed pressure from the valve.

c) Remove body plug from valve inlet. If both inlet body

tappings are used for the pilot system, consult

CLA-VAL factory for correct modification instructions.

e-FlowMeter delivered in 2 parts: A and B

a) Straighten the measurement cylinder as illustrated (Fig.1).

b) Screw locking collar to the end of the swivel insert

assembly.

c) Insert angled end of the tool provided as shown, until it

stops. Then tighten knurled screw. Apply Teflon® tape to

threads of the insert.

a) Screw swivel insert into the valve and orient arrow marked

on the hexagonal section to point downstream and parallel

to the direction of flow.

IMPORTANT !

Swivel insert assemby must be parallel to the direction of

flow.

Inlet body tapping

Measurement cylinder

Swivel insert

Fig.2

Angled end

Fig.1

Sensor with

protective

cap

Sensor assembly

Mounting part A

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a) Loosen knurled screw and remove locking collar from tool.

Remove tool and insert opposite end into the assembly.

(Fig.1 & 2)

b) Turn gently until tool engages. Then push firmly until score

mark is flush with the face of the swivel insert assembly.

(Fig.3)

a) Remove insertion tool. Remove the protection cap by

pulling upright. (Fig.1)

b) Reassemble e-FlowMeter by inserting the sensor assembly.

(Fig.2)

c) Guide for the pin is positioned in the groove as show.(Fig.3)

Fully engage the sensor assembly and tighten the knurled

nut. HAND TIGHT ONLY.

d) To orient the sensor assembly, loosen the headless screw

(Fig.3), orient the assembly as required then and tighten the

headless screw. Proceed in accordance with wiring

diagrams.

Fig.1

Fig.2

Fig.3

Fig.2

Fig.3

Headless screw

Fig.1

Mounting part B

CLA-VAL e-FlowMeter

Vortex Flow Meter

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3.3.3 REMOVAL INSTRUCTIONS

IMPORTANT !

a) Isolate the control valve using main line isolation valves.

b) Bleed pressure from the valve before removing the

e-FlowMeter

c) Disconnect power to all electronic devices on valve,

including e-FlowMeter

a) Hand loosen the knurled lock from straight threads (Fig.1)

b) Remove the e-FlowMeter sensor / head assembly by pulling

straight outward (Fig.2), taking extra care to protect the

sensor tip.

Fig.1 Fig.2

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Vortex Flow Meter

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a) Orient the installation tool as shown on picture and insert

into the threaded swivel insert. (Fig.1)

b) Push the tool with light force to orient the measurement

cylinder. (Fig.2)

c) Slide installation tool straight out, then rotate 180° (Fig.3).

d) Push the tool to straighten the measurement cylinder, and

then secure the installation tool in place with locking collar

in locked position (Fig.4)

e) Unscrew and remove threaded swivel insert from the

valve tapping with the measurement cylinder

straightened.(Fig.5)

Insert body plug into tapping while servicing the

e-FlowMeter

Fig.4

Fig.5

Fig.3

Fig.1

Fig.2

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3.3.4 E-FLOWMETER WIRING

3.3.4.1 Standard wiring

3.3.4.2 Wiring example: 4-20 mA output

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4 SPECIFICATION

4.1 CALIBRATION

The e-FlowMeter is factory calibrated according to the part number. The calibration is specific to the type and size of the

valve. The calibration has been set according to the CLA-VAL IT050 quality test.

4.2 TECHNICAL DATA

Electrical Specifications

Power supply:

(recommended

CLA-VAL turbine power source)

4-20 mA Mode:

Voltage: 8-32 VDC (e-Power IP)

Consumption: 4-20 mA

Mode voltage pulse or digital pulse:

5 VDC (e-Power MP with super capacitor)

6 - 24 VDC

Consumption: 3 mA

Power protection:

Connection:

Repeatability:

4-20 mA Mode:

Over Voltage: max. 40 VDC

Inversion: max. 40 VDC

Pulse or Digital Pulse Mode:

a) Voltage 5 VDC:

Over Voltage: max. 5.5 VDC

Inversion: unprotected

b) Voltage: 6 - 24 VDC:

Over Voltage: max. 40 VDC

Inversion: max. 40 VDC

1 cable of 12 wires 0.22 mm2

< 1 %

Other Specifications

Valve size and model: (mm) NGE 65 - 600 / GE 65 - 400 (Note: NGE 65 and NGE 80 factory tapped ½")

Operating pressure: PN 25 bar standard

Temperature range: - 10°C to + 80°C (electronics only)

Protection: IP68

Software interface:

Calibration

Plug & Play / NT / 2000 / XP / Vista / Win 7 (32 & 64 bit)

Factory standard

Default Modes

Loss of signal: After 30 seconds (default), the 4-20 mA signal is 4 mA (default) or pulse mode

frequency = 0

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4.3 FLOW PARAMETERS FACTORY CALIBRATED

Valve DN (mm) 50 65 80 100 125 150 200 250 300 350 400 450 500 600

Flow at 20 mA (l/s) 12 20 35 50 75 110 200 310 445 600 785 980 1225 1770

Pulse weight (liter) 10 10 10 10 10 100 100 100 100 100 1000 1000 1000 1000

Note: The default flow at 4 mA = 0 l/s, Pulse width = 62.5 ms

All these values could be changed using e-FlowMeter Software (see chapter 6.3 « 4-20 mA, Pulse and Pulse Digital Ouput

Configuration »).

4.4 DIMENSIONS

e-FlowMeter sizes 1 2a 2b 3 4

NGE Valves sizes (mm)

65*

80*

100

125

150

200

250

300

350

400

450

500

600

GE Valves sizes (mm)

100

150 - 200

250

300

400

Overall length

(mm) A 225 240 275 335 455

Insertion length

(mm) B 58 70 108 165 287

Pipe thread

R (ISO 7-1) C 1/2" 3/4" 3/4" 1" 1"

Overall width

(mm) D 85 85 85 85 85

Clearance from wall or

other obstruction 254 266 304 361 483

*NGE 65 mm and NGE 80 mm to be factory tapped 1/2" instead of standard 3/8" tapping.

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5 MAINTENANCE AND REPAIR

5.1 ROUTINE MAINTENANCE

The e-FlowMeter does not have any moving mechanical parts and so is not affected by fatigue wear from mechanical stress.

The system should be inspected routinely for leaks. It is recommended the equipment be turned off during inspection.

5.2 CLEANING DEBRIS FROM MEASUREMENT CYLINDER

If the reading from the e-FlowMeter begins to act in an unreliable manner, then the measurement cylinder should be

inspected and cleaned out to ensure proper operation.

Procedure:

1) Close the shut-off valves to stop the flow of water.

2) Disconnect all wiring.

3) Go through the removal steps (chapter 3.3.3 «Removal

instructions») to remove the e-FlowMeter from the

Control Valve, using the Insertion Tool.

4) With the sensor still removed from the threaded insert,

inspect the measurement cylinder; look specifically for

debris caught on the bluff body, as shown on the

figure.

5) Use pick or small screw driver and tweezers to remove

all of the debris from the measurement cylinder, bluff

body and anywhere else that is has accumulated.

6) Reinstall e-FlowMeter according to chapter 3.3.2

«Installation».

5.3 DEALING WITH SENSOR TIP DAMAGE

If the sensor tip is bent, broken or damaged in the course of the handling or installation, the e-FlowMeter will not function

properly. The sensor should be straight with respect to the sleeve. Since it is designed to sense micro-motion, if the sensor

is forced to enough to detect the movement with the naked eye, it may have been damage. In that case, contact CLA-VAL

Customer Service.

Debris

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6 SOFTWARE AND FIRMWARE

6.1 CONNEXION PC / E-FLOWMETER

When launching the e-FlowMeter Software, if no e-FlowMeter is connected to your PC, the list allowing e-Line product multi-

connection is empty (see image below), select "Cancel".

If you are connected to one or more e-FlowMeter or other e-Line products, click on "View All" and select the product line

you wish to connect to.

If your e-Line product is not up to date on the multi-connection, the e-Line product list remains empty. Click on "View All".

The e-Line product is visible under "Generic e-Line" (see image below). Select the line to communicate with the e-Line

product.

In order to display the name and serial number of the e-Line product in the e-Line List, a firmware update is required (see

Chapter 6.2 "Firmware Update [Internal Software]").

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6.2 FIRMWARE UPDATE (INTERNAL SOFTWARE)

1. The e-FlowMeter must be powered.

2. Connect the connection cable to the USB port of your computer.

3. Connect the e-FlowMeter to the connection cable.

4. Open the e-FlowMeter software (latest version).

5. A selection window appears:

The name of product and the Firmware version are displayed

6. Click on the e-FlowMeter line, the software opens.

7. Click on "Read parameters": retrieve information about the device and set the output parameters.

8. Check that the e-FlowMeter has the latest firmware version available via our website www.cla-val.ch.

9. If yes, go directly to the next chapter.

10. If no, select "Firmware update" in the "Parameters" tab.

11. Click "Save screen to .BMP file" to save an image of the e-FlowMeter calibration settings on your computer.

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12. Click "Update" to update the Firmware, the following window appears:

13. Open the corresponding "hex" file, previously downloaded from our website www.cla-val.ch.

14. Then click on "Read parameters" in order to view the firmware version update.

15. Calibrate the e-FlowMeter by choosing "Metric units", select the size and the model of the valve (see chapter 4.4

« Dimensions » for more information).

16. Click on "Write Calibration":

17. The following message appears:

18. Click on "OK", the Firmware is updated.

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6.3 4-20 MA, PULSE AND PULSE DIGITAL OUPUT CONFIGURATION

The e-FlowMeter is factory calibrated. Calibration depends on the model and size of the valve (see chapter 4.3 « Flow

Parameters Factory Calibrated » for the corresponding values). But if necessary, it is possible to change the 4-20 mA

scaling or pulse weight and pulse width.

When starting e-FlowMeter Software, the window below appears:

Informations: Display information: Serial number, Firmware version, calibration units (Metric units in l/s or US units in

GPM), valve model and programming date.

Display unit: It is possible to change the display unit (l/s, GPM (Gallon Per Minute), GPH (Gallon Per Hour), Ml/d (Mega liter

per day), m3/h, m3/min et CFS (Cubic Feet per Second) then click "Write Parameters".

4-20 mA output: Allow the 4 mA and 20 mA values to change, then click "Write Parameters".

Offset and Gain: If there are some special applications, use Offset and/or Gain to obtain a better measurement.

Output values: When "Dynamic Reading" is clicked, it shows the frequency measured by the pieozoelectric sensor,

4-20 mA output, flow and volume. To put the volume to 0, click on "Reset Volume"

Pulse or digital pulse activation: If the "Pulse Mode on Serial Output" is ticked, the pulse output is activated, if it is

disabled, the digital pulse is activated, then click "Write Parameters".

Pulse output parameters: In standard the pulse output is activated with a Pulse weight of 100 liter for valve size DN 150

mm and below, 1000 liter for valve size DN 150 mm and above. The Pulse Width is 250 ms (millisecond). Both values could

be changed if necessary, then click "Write Parameters".

Informations

Pulse or digital pulse

activation

Pulse output

parameters

Display unit

4-20 mA scaling

Offset and gain

Output

values

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6.4 CALIBRATION

According to table from chapter 4.4 « Dimensions », an e-FlowMeter size covers more than 1 valve model. For example, it is

possible to take an e-FlowMeter calibrated for a NGE 80 valve and to recalibrate for a NGE 100 valve. To do this:

1) Start the e-FlowMeter Software and click on "Calibration".

2) Select "Metric units", choose size of the e-FlowMeter then the model of the valve, in our case size 1 and NGE 100

then click on "Write Calibration":

3) The following message appears:

4) Click on "OK", the e-FlowMeter is calibrated.

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