Introduction:
Direct reading remote water meter, by direct reading water meter, collector, concentrator.
Product features:
1. Meet GB/T 778.1~3-2007 standard: Class B
2. Low power consumption design, no power supply is usually needed, only for meter reading.
3. Advanced data coding and verification, high communication reliability.
4. Meet the electromagnetic compatibility design requirements of ENC, ESD, EMI and other electronic products, and reach the leading level in the industry.
5. Combined with the upper computer system, establish a remote automatic meter reading management system to truly realize the automation of meter reading.
6. Water meter communication protocol support 188 protocol, 645 protocol, MODBUS protocol, support three protocols at the same time, you can choose one of them.
Technical parameters:
1. Traffic parameters
Nominal diameter DN (mm) | Measurement level | Qmax | Qn | Qt | Qmin qmin |
m3/h | |||||
15 | 2 | 3.125 | 2.500 | 0.050 | 0.03125 |
20 | 2 | 5.000 | 4.000 | 0.080 | 0.05000 |
25 | 2 | 7.875 | 6.300 | 0.126 | 0.07785 |
2. Electrical parameters:
Power supply: DC 12V;
Working environment:
Temperature:
-5 ~ +45°C Humidity: 0~95%RH:
Communication mode with upper computer: a)RS-485 fieldbus:
B)M-bus fieldbus
Communication transmission rate: 2400 BPS, communication transmission maximum distance height: 1200m:
Bus pin ESD protection over 10kV
Short circuit current limit:
Two power lines provide 9V-24 power input and two RS-185 lines.
The red line is the positive pole of the power supply,
The black line is the negative pole of the power supply, and the blue line is the B line
, yellow line is line 485 A,
See annex for communication collaboration
Mounting dimensions
1. Level water meter
2. Vertical water meter
3. Level valve controlled water meter
Installation, use and maintenance methods
1.The diameter of the water meter should be determined according to the flow rate of the installation site, and hot water should not be used (except after restructuring).
2. The installation position should avoid exposure, freezing, pollution, moisture and flooding, in order to disassemble and read the meter, in the freezing period, in addition
Wrap the water meter and water pipe, close the water meter inlet end valve and open the outlet end water outlet valve and tap when not in use
Prevent water meter damage due to frozen inflation. It is recommended to be installed in a special water meter box.
3. Pipe flow direction should be consistent with the direction indicated by the arrow on the water meter
4. The new pipeline must be cleaned of stones, silt, hemp and other sundries in the pipeline before installing the water meter, so as not to cause the water meter disabled.
5. To measure accurately, the faucet should be higher than the water meter.
6. If the water meter is installed in the boiler inlet pipe, the water meter should be prevented from being damaged by backflow of hot water. It is best to install check valve at the outlet of the water meter.
. The water meter should not be directly connected with the pipe. The water meter should be connected with the pipe through a pipe, a sealed washer, and a nut. Tear open outfit
Water meter, must not force hard pull, so as not to twist the case
8. If the water meter is used for a long time, the impurities in the pipe, such as rust, will block the filter or enter the water meter, affecting the normal operation of the water meter
Well, wash it every three years.
9.
When no water is used, if there is a small movement, it is caused by unstable water pressure in the pipeline or other reasons.
10. In the network read table system connection method:
A)RS-485 fieldbus
*Red,black,yellow,blue
* Meter lead line
B)M-bus fieldbus
*red,black
Supporting accessories
Each water meter comes with two fittings, two connecting nuts and two sealing rings, one instruction manual and one certificate. Along with the
With each system to provide the corresponding installation and maintenance manual, software operation guide and other related materials.
After-sales service
Our company has set up a special customer service department, there are special technical personnel to provide you with after-sales service and technical support.
1 Consulting Service
Can at any time telephone or written answer questions about the use of products, when necessary to send personnel to the site service.
2. Maintenance services
The company's products within one year of leaving the factory, correct installation, normal use under the condition of internal damage caused by manufacturing quality
Or failure (except frozen damage), in the case of keeping the seal intact, the company can be responsible for repair, replacement.