Bove Technology B97 VPW Prepaid Ultrasonic Water Meter User Guide

Bove Technology  B97 VPW Prepaid Ultrasonic Water Meter

B97 VPW Prepaid Ultrasonic Water Meter

The B97 VPW Prepaid Ultrasonic Water Meter is a state-of-the-art water meter designed for accurate water consumption measurement and prepaid billing. It is manufactured by Bove Intelligent Technology Co., Ltd, a leading company in the water meter industry.

The meter is equipped with ultrasonic sensors that use sound waves to accurately measure water consumption without any moving parts, reducing maintenance costs and improving accuracy. It also features a prepaid billing system that allows users to pay upfront for their water usage, eliminating the need for estimated bills and reducing the risk of water service disconnection.

Product Usage Instructions

1. Before installing the meter, read the Installation & User Guide carefully to ensure proper installation.
2. Install the meter according to the manufacturer’s instructions, making sure that
3. the sensors are properly connected to the water supply pipe.
4. Activate the meter’s prepaid billing system by following the instructions provided by the manufacturer.
5. Top up your account with prepaid credits to ensure uninterrupted water supply. The meter will automatically deduct the appropriate amount of credits for your water usage.
6. Monitor your water consumption and prepaid credit balance regularly to avoid disconnection due to insufficient credits.
7. If you encounter any issues or have any questions regarding the meter’s usage, contact Bove Intelligent Technology Co., Ltd for assistance.

By following these instructions, you can effectively use the B97 VPW Prepaid Ultrasonic Water Meter to accurately measure your water consumption and avoid the risk of water service disconnection due to non-payment.

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 5, Building 5, No. 36,
Chang sheng South Road, Jiaxing, Zhejiang, China, 314000
Tel: +86 573 83525916
Fax: +86 573 83525912
Email: bove@bovetech.com
www.bovetech.com

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

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.

Technical Specification

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.

Calculator
The calculator (MCU) 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.

Completer meter

Dimension
DN (mm)| Length| Height| Width| G Threaded End Connection
15| 165| 103| 90| G3/4’
20| 195| 100| 100| G1’
Flow Measurement

DN (mm)

| Flow Rate (m3/h) @R400
Q3| Q2| Q1
15| 2.5| 0.01| 0.00625
20| 4| 0.016| 0.01
Pressure Loss △P| ≤40KPa
MAP| 1.6MPa
Water temperature range (Optional)| 0.1-30°C(T30)/0.1-50°C(T50)
Q3/Q1 (Optional)| R160/R200/R250/R400
Accuracy| Class2
Maximum permissible error in upper flow rates range Q2 £ Q £ Q4| ± 2 % (at Temperature ≤ 30°C)
±3% (at Temperature > 30°C)
Maximum permissible error in lower flow rates range Q1 £ Q < Q2| ±5%
Scale interval (m3)| 0.001
Capacity of calculator| 99999,999
Type of liquid| Drinking Water
Installation requirements| Min. 5DN length of straight pipe before the meter, and Min. 3DN 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/Gal
Display LCD| 8-digit
Volume| 0.001m³
Time to LCD off| Always on
Environmental Requirement

Environmental Class| E1,M1
Ambient temperature| 5~55°C(Indoor and non-condensing)
Storage temperature| – 20~60°C
Protection Class (Optional)| IP65/IP68
Data history (Optional)| ikhta0slenl4/1,do2gy/why/ly.
Interface & Communication
Output signal for normal operation (Optional)| Wired communication
RS485/M- Bus
Wireless communication
Lora WAN
Output display/signal for testing| M-Bus,RS485,Infrared
Power Supply
Battery| Lithium Battery
Battery Life (Optional)| 6Years/10Years/16Years
24V DC (Optional)| External supply for special version.
Mechanical Specification
Top cover| ABS
Bottom cover| ABS
Flow Body| Brass59- 1

Data Storage

1. 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 24/120 days/ weeks/ months.

2. Flow correction coefficient (Only stored when manufacturing).

3. Meter ID

4. Balance Date
   Note: 2 to 4 are upgraded as per each command

5. Accumulated flow volume

Physical dimensions

Installation

Requirements for installation environment
B97 VPW 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.

Before Installation
Prior to installation of the flow sensor, the pipe shall be thoroughly flushed out, and any dirty, stone alike items must be removed from the pipe. Cavitation in the system must be avoided. If a risk of frost exists, empty the system and, if necessary, remove the meter. If the water is soiled, fit the strainer in the pipe before the meter.

Mounting of Flow Sensor
Consider the dimensions of the water meter, and the distance with surroundings, minimum 3 cm free space.
Straight sections of 5×DN before and 3×DN after the meter are recommended, to homogenize the temperatures of water.
The meter is to be installed so that the direction of the arrow on the meter housing corresponds to the direction of flow. Avoid the collection of air bubbles in the meter during the installation process.

The connecting pipe at the two ends must be on the same horizontal level. Install horizontally only, not tilted, inclined or overhead. Install the flow sensor into horizontal or up streaming pipelines.

Do not install at highest point of piping to avoid air inside the flow sensor. The flow sensor must not be installed in the positions where swirling flow exists (swirling flow is normally caused by bending pipe), or pulsatile flow exists (pulsatile flow is normally caused by pump, therefore the flow sensor must be installed as far as possible from pump and must not be installed on the outlet of pump) or air may build up.

Mounting Step

• Step 1: Flush the piping system thoroughly before mounting the meter.
• Step 2: Sufficient distance.10×DN straight pipe in upstream and 5×DN straight pipe in downstream. (DN: Diameter)
• Step 3: The specific seal gasket and connector only supplied by Bove Technology.
• Step 4: On the two sides of the meter, there should be one filter (if the water is soiled) and two shut-off valves.
• Step 5: After finishing the above operations, seal the meter only if the sealing has not been done before delivery from factory.

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.

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.

Power supply

B97 VPW Series is fitted with 2 kinds of lithium battery.

m m
Operating temperature| – 60°C ～ +85°C

Interface & Communication

IrDA
B97 VPW Series are all equipped with an optical interface IrDA to IEC780 as a standard.

Lora WAN (Default)

Band| E U 4 3 3| EU868| I N 86 5| US915| AU915| AS923
---|---|---|---|---|---|---
Class| C l a s s A
Network Access Mode| O T A A o r A B P
Transmitting Power| 12dBm| 14dBm| 20dBm
---|---|---|---
Data transmission| E a c h 6 h a s d e f a u l t

RS485 (Optional)
Cable: connected with four-core cable
Voltage: 5-24V.
Note: The meter reading interval should be over than 1 hour.

M-Bus (Optional)

• Cable: Connected with galvanic isolation, no need to distinguish
• 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) is 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). 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 damage to the meter.

The M-Bus of the meter is supplied with a 2-wire cable with wire end ferrules.

Note: The meter reading interval should be over than 1 hour.

Operation & Display

B97 VPW Series is fitted with an easily readable LCD, including 8 digits, measuring units and information field.

Fig. LCD Display

one.
3| | Error warning| Warnings for error
4| | Communication type| M-Bus communication
5| | Pipe state| Blink means empty pipe
6| | Credit alarm| Prepaid mode only
7| | Button indication| Button detected once appear
8| | Reverse flow| Reserve
9| | Valve indicate| Valve control meter only
10| | Unit| Gal Unit
---|---|---|---
11| | Unit| Volume and flow rate
12| | Wireless communication| Reserve
13| | Unit| Temperature
14| | Currency| Prepaid mode only
15| | Tariff| Prepaid mode only

Operations on how to display
Users may touching off the button (Hall) to read the meter information such as Accumulated volume, current flow rate, etc.

Measuring Menu List (User Loop)
Touching off the hall for more than 2 seconds and holding it on will bring up the four menus for users to select.

Main Menu
Shortly covering the button to display items under the Main Menu one by one in the following order to check the measurement data:

Menu E
Shortly covering the button to display items under Menu E one by one in the following order to check the meter information:

Menu I
This Menu shows history date records of last 24 logs (month as example). Cover the button to select the log number, then the log number, log reading will be displayed in turn.

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-covering the button (over 5 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.

Error and Warning
The meter constantly performs self-diagnosis and can display various faults. Visual indication on the LCD display in the event of a warning. Permanent visual indication on the LCD:

Fault / Meaning / How to handle the error

1. Low battery Communication circuit to be checked
2. Empty Pipe Fulfill the pipe with water, no air bubble.
3. Reverse Flow Reverse the water pipe.
4. Over Range (High Instant flow rate) Lower the instant flow rate, or change a higher Range water meter.
5. Water Temperature Error Lower the water temperature
6. EE Memory Error Change circuit board.
7. Leakage Check the pipe leakage
8. Burst Check the pipe burst

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 communication software’s 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 Citi Group, 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 sub sequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Bove and the Bove logotype are trademarks of Bove Technology. All rights reserved.

Copyright© 2023 Bove Intelligent Technology Co., Ltd

References

• Bove Technology

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