Mechanical Water Meter Test Bench

3. Main Technical parameters:

3.1  Total accuracy class of device: Weigh Scale method is better than 0.2.

3.2 Working pressure of water source:0.3~0.5 Mpa, the adjustable, working pressure of air source:0.4～0.6MPa.

3.3 The measuring medium: tap water; the flow range: 0.004~40 m/h; the working temperature: 0℃~50℃.

3.4 Tested water meters size and qty：

DN15×10pcs,DN20×8pcs,DN25×6pcs,DN32×5pcs,DN40×3pcs,DN50×2pcs.

3.5 The range of Pressure Test: 0.3MPa～2.0MPa.

3.6 The instantaneous flow indicator uses a glass rotor flow meter to cover the flow verification requirements of the tested water meter.

3.7 Measurement standard Device:

3.7.1 The device is equipped with 600 kg with full range verification indexing value of 1/6000 and display indexing value of 1/60000 and two electronic scales with high stability of 30 kg as standard device.

3.7.2 The electronic scale adopts two combinations to meet the accuracy requirements of each flow point. Ensure that the electronic scale runs on the best measurement section during the measurement process.

3.8 Container:

3.8.1 According to the field conditions and verification requirements, the shape of weighing container is reasonably designed, which be not easy to deform, has sufficient strength and volume to meet the requirements of water for verification.  The material of container: Stainless Steel 304.

3.8.2 The calibration of non-unloading container on-line should be realized, and the weighing container can be removed from the scale by manual operation.

3.8.3 The Weighing table be level, stable, and the container discharge unobstructed without vibration.

3.9 Operating System:

3.9.1 The system has a good operating interface to meet the actual requirement of verification, all verification data can be stored in time, backup, also can be queried or deleted at any time. The query function should include the data such as time,serial number and so on. For convenient to quick query.

3.9.2 All verification reports can be printed directly in accordance with the requirements of the technical specifications. It can be printed individually or stored in the database.

3.9.3 The software is suitable for the buyer to use, if have to modify and upgrade to provide free service in time.

3.9.4 The whole control system can inspect the automatic value and detection of all the test items. After setting the flow point, the computer can control the continuous verification until the verification is completed. and facilitate interrupt control and inspection and maintenance.

3.9.5 Automatic collection and recording of piping pressure and temperature.

3.9.6 The computer uses brand machine, main frequency upto 2.8 G, memory upto 2 G, hard disk upto 500 G, 20 inch LCD, A4 laser printer etc.

3.10 Camera:

3.10.1 The meter is collected by high speed dynamic camera, and the reading is better than 1% of the minimum reading disk of the meter, which can accurately identify the water consumption of different kinds of new water meters and old water meters with less fuzzy pointers.

3.10.2 Using the professional high-speed camera developed by our company to collect the center gear of water meter, the camera frequency is not less than 1000 frames per second.

3.10.3 The camera system has automatic focusing and automatic capture function.

3.11 Others:

3.11.1 Adopt self-contained water pump and steady-stabilized tank to form an independent circulating steady-stabilized water supply system.

3.11.2.The pipes, valves and flanges are usually made of stainless steel or copper, and the appearance and welding of the containers and pipes are polished and polished into subgloss.

3.11.3 Water supply pressure, pressure and temperature sensors each 1 pc.