Smart prepaid radio frequency water meter

Smart prepaid radio frequency water meter

Smart card water meter is a new type of water meter that uses modern microelectronics technology, modern sensor technology, and smart card technology to measure water consumption, and conduct water data transmission and settlement transactions. In addition to recording and electronic display of water consumption

Smart prepaid radio frequency water meter
Ø Features:

u In addition to recording and electronically displaying the water consumption, it can also automatically control the water consumption according to the agreement, and automatically complete the calculation of the water fee of the step water price.

u At the same time, it can store water data.

u Data transmission and transaction settlement are carried out through the card.

u It is possible to realize the transition from the staff member's door-to-door meter reading fee to the user's own payment at the business office.

Ø Conditions of use:

u Flow range: Q1~Q3 (the short-time working error of Q4 remains unchanged)

u Ambient temperature: 5℃~55℃

u Environment humidity: (0~93)%RH

u Water temperature: cold water meter 0.1℃~30℃, hot water meter 0.1℃~90℃

u Water pressure: 0.03MPa~1MPa (1.6MPa short-time work without leakage or damage)

u Pressure loss: ≤0.063MPa

u Working voltage: 3.0V~3.6V Quiescent working current: ≤5µA

u LCD display range: 00000.0~9999.9

u Climate and mechanical environment grade B

u Electromagnetic environment level E1

Ø Installation method:

u Security:

① When installing a water meter on a newly laid pipeline, the debris in the pipeline must be cleaned up before installation;

② The maximum use water temperature and maximum use water pressure of the installation site must meet the requirements of the water meter;

③ The water meter installed outdoors should be protected from exposure to sunlight and freezing, and generally should be equipped with a protective box, and should be installed in a location that is protected from sediment, groundwater, and insects;

④ The installation location of the water meter should avoid the corrosion of corrosive gas, and there should be anti-theft facilities;

⑤ For the water meter installed near the boiler, a check valve should be installed behind the meter to prevent hot water from returning.

u Convenience:

① The installation position of the water meter should be easy to read and check the meter, and at the same time, it should be easy to repair and replace the water meter;

② The two ends of the water meter must be equipped with stop valves to facilitate the maintenance and replacement of the water meter.

u correctness

① The installation position of the water meter should be consistent with the H and V marks on the dial or the nameplate, and the dial of the water meter should face upwards without tilting;

② The direction of the arrow on the water meter case is consistent with the flow of water in the pipeline, and should be installed coaxially with the pipeline;

③ The straight pipe section in front of the water meter should be 10 times the nominal diameter of the water meter, and the straight pipe section after the water meter should be 5 times the project diameter of the water meter; the water meter should always operate under the condition of a water-filled pipeline and maintain a certain pressure.

Working conditions:
Flow range: Q1~Q3 (Q4 short time work not change error)
Ambient temperature: 5℃~55℃
Ambient moisture: (0~93)%RH
Water temperature: cold water meter 1℃~40℃, hot watr meter 0.1℃~90℃
Water pressure: 0.03MPa~1MPa (short time work 1.6MPa not leak, no damage)
Pressure loss: ≤0.063MPa