How to use the radio frequency card?
Compared with the contact type water meter, the RF card water meter is more convenient without inserting the card into the meter, just swipe it, especially in some special environments, such as the installation height of the meter is relatively high, the card cannot reach the water meter Yes, only the RF card water meter and the inductive card can be easily reached.
Precautions for the use of smart water meters
Everyone is familiar with the smart water meter. In addition to recording and electronically displaying the water consumption, it can also control the water consumption according to the agreement. Some people use the smart water meter improperly, which causes great harm to the water meter. Please pay attention to the precautions for the use of the smart water meter
1. Regularly check the operation of the smart water meter, and pay attention to antifreeze in winter.
2. Please close the front and rear valves of the smart water meter if it has been installed in the pipeline but has not been delivered or will not be used for a long time (more than a week).
3. After replacing the battery, you must cover the moisture-proof cover and tighten the screws, otherwise the water meter will not work and the card will display E--5.
4. If the electronic display of the smart water meter does not match the character wheel or the smart water meter fails, the character wheel measurement shall prevail.

Why is there a difference in the readings of the total and sub-water meters of the users of the total meter system?
According to the actual situation, the difference between the total and sub-meter water meter readings has the following factors:
1. Water leakage occurs in the water pipes and water supply facilities behind the master meter;
2. The taps of each sub-meter are not completely closed, and the sub-meter cannot measure, but the main meter is measuring water;
3. The sub-meter has been used for a long time and has not been regularly checked as required or the quality of the water meter itself is poor.

