Bove technology B39 vw bulk Operation manual

www.bovetech.com

Installation & User Guide

B39 VW Bulk

Ultrasonic Water Meter

Read this Guide before installing the meter

Thank you for choosing our products

The contents of this manual are subject to change without prior notice

as a result of continuing improvements to the meter’s performance

and functions.

Every effort has been made in the preparation of this manual to

ensure the accuracy of its contents. However, should you have any

questions or find any errors, please contact BOVE TECHNOLOGY.

Copying or reproducing all or any part of the contents of this manual

without the permission of BOVE TECHNOLOGY is strictly prohibited.

Bove Intelligent Technology Co., Ltd

Add: Level 9, Jiaxing Pioneer Building, No. 1539,

ChengNan Road, Jiaxing, Zhejiang, P.R.

China, 314000

Tel: +86 573 83525912

Fax: +86 573 83525912

Email: bove@bovetech.com

www.bovetech.com

CONTENT

1. GENERAL INFORMATION............................................................................................................... 1

2. TECHNICAL SPECIFICATION......................................................................................................... 1

2.1 FLOW SENSOR..........................................................................................................................................................1

2.2 CALCULATOR.............................................................................................................................................................2

2.3 COMPLETER METER..................................................................................................................................................2

2.4 DATASTORAGE.........................................................................................................................................................4

2.5 PHYSICAL DIMENSIONS .............................................................................................................................................5

3. INSTALLATION................................................................................................................................... 5

3.1 REQUIREMENTS FOR INSTALLATION ENVIRONMENT .................................................................................................5

3.2 INSTALLATION SPECIFICATION ..................................................................................................................................6

3.3 BEFORE INSTALLATION .............................................................................................................................................6

3.4 COMMON ERROR INSTALLATION EXAMPLES .............................................................................................................7

3.5 INSTALLATION OF NON-RETURN VALVE....................................................................................................................9

3.6AFTER THE INSTALLATION .........................................................................................................................................9

4. POWER SUPPLY................................................................................................................................ 9

5. INTERFACE & COMMUNICATION ................................................................................................. 9

5.1 IRDA.........................................................................................................................................................................9

5.2 M-BUS...................................................................................................................................................................10

5.3 PULSE OUTPUT (OPTIONAL)...................................................................................................................................10

5.4 RS-485(OPTIONAL)...............................................................................................................................................10

6. OPERATION & DISPLAY ................................................................................................................ 11

6.1 OPERATIONS ON HOW TO DISPLAY .........................................................................................................................11

6.2 MONTHLY DATA.......................................................................................................................................................16

7. ERROR AND WARNING................................................................................................................. 16

1 / 17

1. General Information

Please note that the following installation conditions must be obeyed:

Pressure Requirement: MAP16.

Environmental Class: E1, M1

Installation requirement: There must be a distance of minimum 25 cm between signal

cables and other installations

If medium temperature is below 10°C or above 90°C in flow sensor, It’s recommended

that the calculator be wall-mounted.

Note: Seal or any safety marks on the meter must not be damaged or removed, and doing so

will void the warranty and calibration of the meter.

2. Technical Specification

2.1 Flow Sensor

The flow sensor is a device used to measure the velocity of flow by using the principle of

ultrasound. It can measure the average velocity along the path of an emitted beam of

ultrasound by averaging the difference in measured transit time between the pulses of

ultrasound propagating into and against the direction of the flow. The flow measurement is

based on an acoustic wave time of flight principle. The flow meter body is equipped with 2

ultrasonic transducers facing 2 acoustic reflectors.

Flow sensor data:

Manufacturer

Bove

Type

B39 VW

Accuracy class

Class 2

MAP

10 bar

Max Pressure loss at Q3

≤63kPa

Max admissible temperature

50°C

Limits of temperature (Θmin and Θmax)

0.1-30°C ,0.1-50°C

Installation requirements

Min. 10*DN length of straight pipe before the

meter, and Min. 5*DN length of straight pipe after

the meter (DN is the diameter of meter)

Basic mounting orientation and other

specified orientations

Horizontal/Vertical

Output signal for testing

Analog signal 1Mhz

power supply

Lithium Battery

Current used

Average 20uA, Peak 4mA

2 / 17

Climatic and mechanical class

Electromagnetic class

Mechanical class

2.2 Calculator

The calculator is a device that calculates the flow volume consumed based on signals from

flow sensor. It’s also the control, display and data store part for the meter.

Calculator specification:

Manufacturer

Bove

Climatic and mechanical class

Electromagnetic Class

Mechanical Class

Display unit

M3, L

Battery power supply requirements

See part: 4 Power supply

Pulse input device class

N/A

Max permissible flow sensor signal(Pulse

rate)

N/A

Output signal for normal operation

M-Bus, Infrared, RS485, LoRa

Pulse output device class

N/A

Output signal for testing

M-Bus, Infrared, RS485, LoRa

Liquid if other than water

N/A

2.3 Completer meter

Manufacturer

Bove

Flow Measurement

(mm)

Flow Rate (m3/h)

Dimensions (mm)

Connection

Length

Height

Bolt (flange)

0.125

0.2

31.25

200

245

125

165

4*M16

0.5

0.32

200

260

145

185

4*M16

0.315

0.504

78.75

225

285

160

200

8*M16

100

0.5

0.8

100

125

250

295

180

220

8*M16

125

0.8

1.28

160

200

250

305

210

250

8*M16

3 / 17

150

1.25

250

312.5

300

325

240

280

8*M20

200

3.2

5.12

400

500

345

455

295

335

12*M20

250

5.04

8.06

630

787.5

445

515

335

405

12*M24

300

12.8

1000

1250

500

575

410

460

12*M24

400

12.8

20.5

1600

2000

600

670

525

580

16*M27

Pressure Loss △P

≤63 KPa

MAP

1.0 MPa

Water temperature range

0.1 to 30°C,0.1 to 50°C

Q3/Q1

DN50

～

DN150

：

Q3/Q1(125 or 200)

DN150~DN400: Q3/Q1=125

Accuracy

Class 2

Maximum permissible

error in upper flow rates

range Q2 Q Q4



2 %(at Θ ≤ 30°C)



3% (at Θ > 30°C)

Maximum permissible

error in lower flow rates

range Q1 Q < Q2



Scale interval(m3)

0.01

Capacity of calculator

99999 99,999

Type of liquid

Water

Installation requirements

Min. 5*DN length of straight pipe before the meter, and Min. 3*DN

length of straight pipe after the meter (DN is the diameter of meter)

Basic mounting

orientation and other

specified orientations

Horizontal/Vertical

Display & Indication

Display unit options

M3, L

Display LCD

9-digit

Volume

0.01m3

Time to LCD off

LCD on all the time

Environmental Requirement

Environmental Class

E1, M1

Ambient temperature

5 ~ 55°C (Indoor and non-condensing)

4 / 17

Storage temperature

-20 ~ 60°C

Protection Class

IP68

Data history

24 month

Interface & Communication

Output signal for normal

operation

M-Bus

RS485

Infrared

Lora (Optional)

Output display/signal for

testing

M-bus, Infrared

Power Supply

Battery

One 3.6V Lithium Battery

Battery Life

≥ 6 Years

24V DC

External supply for special version (Optional)

Mechanical Specification

Meter body

Cast steel

2.4 Data Storage

Accumulated flow for the current month

Note:1 will be registered at 00:00 on the balance day, and the calculator stores the data

of last 24 months.

Flow correction coefficient (Only stored when manufacturing).

Meter ID

Balance Date

Note:2 to 4 are upgraded as per each command

Accumulated flow volume

5 / 17

2.5 Physical dimensions

3. Installation

3.1 Requirements for installation environment

B39 VW-M series ultrasonic water meter has been designed for indoor installation in

non-condensing environments with ambient temperatures from 5~55°C.

The meter must not be under any mechanical stress when installed in the pipe.

The meter must be protected against pressure shocks in the pipe.

Protection class IP68 allows long-term submergence, provided that all cable unions have

been correctly mounted and that the plastic cover has been properly fastened.

Make sure the meter is installed sufficiently far away from possible sources of

electromagnetic interference (switches, electric motors, fluorescent lamps, etc.).

All control cables must be drawn separately and not parallel to e.g. power cables or other

cables with the risk of inducing electromagnetic interference. There must be a distance of

min. 25cm between signal cables and other installations.

If two or more meters are to be installed shall be in parallel, the axis-center distance

between two meters shall be at least 135mm minimum.

6 / 17

3.2 Installation Specification

No.

Description

Valve Inlet

Strainer

Water Meter

Valve Outlet

3.3 Before Installation

The pipe must be completely cleaned before installing the ultrasonic water meter to prevent

the debris from damaging the water meter;

Ultrasonic water meter is an expensive precision instrument. Care must be taken when

transporting. It is forbidden to directly lift the meter head or sensor line; it is strictly

prohibited to approach a higher temperature heat source (such as electric welding to

prevent battery explosion and injury and damage to the instrument);

The installation position of the ultrasonic water meter should pay special attention. The

water meter should be avoided to be installed at the upper end of the pipeline (there will be

bubbles in the pipe), avoiding installation near the elbow (which will generate vortex flow),

and should be kept away from pumps and other equipment (which will cause pulsating

flow);

The connecting pipe at the upstream and downstream of the ultrasonic water meter shall be

the same as the diameter of the water meter and shall not be reduced in diameter;

The direction indicated by the arrow on the surface of the ultrasonic water meter is the

direction of water flow, and shall not be reversed;

It is recommended that the front end of the ultrasonic water meter be equipped with a

strainer of the corresponding diameter; the valve is installed in front of the meter and it can

be separated from the meter body for future maintenance and repair.

7 / 17

3.4 Common error installation examples

If the flange on the pipe is welded, the position reserved for welding is too large, or the

unevenness of the flange welding has an angle with the flange of the meter. Do not forcibly

tighten the bolt now otherwise the body may be broken. The correct approach should be

removed and reinstalled, as shown in FigureA).

Figure (A)

When the meter is installed horizontally, the direction of the calculator should be upwards. If

the direction of the calculator is facing to the side, the two transducers will not be on one

level, and the transducer at the high point may collect air. The measurement is not accurate

or not measured (as shown in Figure B).

Figure (B)

When the meter is installed vertically, it must be installed on the straight pipe with the water

flow upwards. Because the pipe with the downward flow of water is affected by the gravity

of the center of the earth, the water in the pipe cannot be filled. This may result in

inaccurate metering or even cause the meter not measurement. (Shown in Figure C).

Figure (C)

8 / 17

When installing at the “U” tube, install the meter at the lowest position, because the pipe

may accumulate air in the high place, causing the meter to be inaccurate or not

measurement. (Shown in Figure D).

Figure (D)

When the meter is installed at the elbow, it must be ensured that the distance between the

front straight pipe is ≥5 pipe diameter and the rear straight pipe is ≥3 pipe diameter.

Otherwise, the meter may not be measurement (as shown in Figure E).

Figure (E)

When installing valves or other objects in front of the meter, it must be ensured that there is

a distance of ≥ 5 times the diameter between the meter and the object, otherwise the meter

may not be metered; (as shown in Figure F).

Figure (F)

9 / 17

3.5 Installation of Non-Return Valve

The meter can be supplied with a non-return valve (if required) on request. The non-return

valve must be installed on the water inlet end of meter when installing.

3.6 After the installation

The tightness must be proved by pressurizing with cold water, slowly filling the pipe on

completion of the installation;

Open the shut-off valves carefully and check installation for leakage. While the piping

system is operating, check whether the volume display correctly and the temperatures

display corresponding with the actual temperatures (see the display information);

When the response thresholds are exceeded and the flow rate is positive, the volume is

summated;

Make the segment test, in order to displays all display segments for test purposes;

The operating hours are counted from initial connection of the battery. The date is

incremented daily. As a standard the meter is delivered with the local time, or destination

time if required.

4. Power supply

B39 VW-M Series can be fitted with one ER26500 with operating time of 6+1 years

respectively.

Brand

EVE

Type

Lithium Battery

Model No.

ER26500

Rated capacity

9000mAh

Rated voltage

3.6V

Max recommended continuous operating current

130mA

Max pulse current

180mA

Reference weight

28g

Operating temperature

-55°C

～

+85°C

5. Interface & Communication

5.1 IrDA

B39 VW-M Series are all equipped with an optical interface IrDA to IEC62056-21 as a

10 / 17

standard. In addition, one of the following options can be ordered for remote output.

5.2 M-BUS

Cable: connected with galvanic isolation

Voltage: 50V max.

Current: M-Bus loads

Addressing: primary or secondary

Note: A higher frequency is not allowed and may result in meter malfunction!

Data transmission in the compatibility mode (= standard, one data frame) or in the full mode

(3 data frames) possible.

If the meter is equipped with “M-bus”, it is delivered with a two wire cable, which can be

lengthened with a cable 2 x 0.75mm2 (put a distributing box). Pay attention to the proper

polarity in case of the pulse output. If the meter is read out via M-bus, the allowed mean

frequency of reading must not be exceeded. Any more reading is not allowed and may

result in a damage to meter.

The M-Bus or pulse variant of the meter is supplied with a 2-wire cable with wire end

ferrules.

Version/Color

Pulse

M-Bus (2-wire)

Red

Pulse

M-Bus

Black

GND

M-Bus

5.3 Pulse Output (Optional)

Pulse output for heat or volume, with 2m cable connected, with galvanic isolation

Pulse significance: 1 pulse per 100/1000 liter

Pulse length: 100 ms (Programmable)

Heat / Volume: specify in order or change with service-software

Voltage: max. 30 V

Current: max. 30 mA

Pulse break: min. 25ms

Classification OC (acc. to EN 1434-2)

Voltage drop: ca. 1.3V at 20 mA

5.4 RS-485(Optional)

Cable: connected with four-core cable

Voltage: 5-24V.

Version/Color

RS-485

Red

VCC

11 / 17

Black

GND

Yellow

Green

6. Operation & Display

B39 VW–M Series is fitted with an easily readable LCD, including 9 digits, measuring units

and information field.

The LCD will keep display for easy checking the data.

Fig.l LCD Display

6.1 Operations on how to display

Users may press the button to read the meter information such as Accumulated volume,

current flow rate, etc.

The following information is displayed in order by short pressing the button: accumulated

flow, instant flow, date, time, accumulated working time, Meter ID, address, meter type,

software version No., checksum, etc.

6.1.1 Menu List (User Loop)

Pressing the button for 3 seconds and holding it on will bring up the four menus for users to

select.

Short press less than 2 seconds

Keep press more than 2 seconds

Main Menu

xxxxx.xxx

12 / 17

6.1.2 Main Menu

Shortly pressing the button to display items under the Main Menu one by one in the

following order to check the measurement data:

13 / 17

6.1.3 Menu E

Shortly pressing the button to display items under Menu E one by one in the following order

to check the meter information:

14 / 17

6.1.4 Menu I

This Menu shows history date records of last 24 months. Click the button to select the

month, then the month, monthly flow consumption will be displayed in turn.

15 / 17

6.1.5 Menu F

The following diagram shows Menu F (Calibration mode only). In F mode, Accumulated

flow value is able to reset automatically, when flow is zero and starts to exceed the preset

value then the current accumulated value is clear to zero. Also the value can be reset by

long-pressing the button (over 2 seconds). The meter exit the calibration mode if no

operation for 2 hours.

Note: preset value is pre-set to make sure zero calculation when there’s no water flow in

the pipe, usually the value equals to 0.1% of q3.

16 / 17

6.2 Monthly Data

The calculator stores the following values for 24 months at each end of month

- Volume (meter reading)

From the month set day display, press the button shortly to enter the previous month's

values.

The month values can also be read out via the optical interface and other communication

ports.

7. Error and Warning

The meter constantly performs self-diagnosis and can display various faults. Visual

indication on the LCD display in the event of an warning. Permanent visual indication on the

LCD:

Fault

Meaning

How to handle the error

Low battery

Communication circuit to be checked

Empty Pipe

Fulfill the pipe with water, no air bubble.

Reverse Flow

Reverse the water pipe.

Over Range (High Instant flow rate)

Lower the instant flow rate, or change a higher

Range water meter.

Water Temperature Error

Lower the water temperature

EE Memory Error

Change circuit board.

Flow Sensor Error (water-in)

Change sensor

Flow Sensor Error (water-out)

Change sensor

Corporate Profile

Bove provides comprehensive solutions on flow metering and control to over 30 countries

in the globe. We design and manufacture range of flow metering solutions and IoT (internet

of things) consumer products, which includes high accuracy water meter, thermal energy

meter, testing bench, smart tap, smart communication softwares for residential, commercial

and industrial sectors. Since 2009 Bove has always been moving on the edge of

technology to deliver state of the art products and solutions to customers all around the

world.

A couple of our engineers are dedicated in metering and Communication industry for over

10 years, core team are previously working in Huawei, Baidu, IBM, and CitiGroup, etc. With

these talents Bove are able to provide prompt services and reliable products to our global

customers.

Bove is committed to address the unique challenges that the residential and industry are

facing, including increasing customer demand, water scarcity, and environment

conservation. With hope, honor and our hard and quality work, we are looking to future to

make Bove one of the best brands in metering industry in the world.

Our Mission

To exceed our customers expectation by providing prompt, quality and reliable technology.

Our Vision

Creating an Eco Society

Bove can accept no responsibility for possible errors in catalogues, brochures and other printed material.

Bove reserves the right to alter its products without notice. This also applies to products already on order

provided that such alterations can be made without subsequential changes being necessary in specifications

already agreed. All trademarks in this material are property of the respective companies. Bove and the Bove

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