Working Voltage

3.1

3.6

4.0

V

Working Temperature

-20

25

70

℃

Storage Temperature

-40

-

80

℃

Sleep Current

-

15

20

μA

1

Touch button

 It can be used for the near-end maintenance, and can also trigger the NB to report. It adopts the capacitive touch method, the touch sensitivity is high.

2

Near-end maintenance

 it can be used for on-site maintenance of the module, including parameter setting, data reading, firmware upgrade etc. It uses the infrared communication method, which can be operated by a handheld computer or a PC host computer.

3

NB communication

The module interacts with the platform through the NB network.

4

Metering

Adopt non-magnetic inductance metering method, support forward and reverse metering

5

Disassembly alarm

The disassembly alarm function is disabled by default when the meter module is powered on. After installation and 10L metering, the disassembly alarm function will be available. When the module leaves the meter for about 2s, a disassembly alarm and a historical disassembly alarm will occur and trigger the NB to report. Reinstall the module and the meter normally to measure 10L, the disassembly alarm will be automatically cleared within 3s, and the disassembly will be restarted Alarm function. The historical disassembly alarm will be canceled only after successfully communicated with the communication module for 3 times.

6

Magnetic attack alarm

When the magnet is close to the Magnetoresistive element on the meter module, magnetic attack and historical magnetic attack will occur. After removing the magnet, the magnetic attack will be canceled. The historical magnetic attack will only be canceled after the data is successfully reported to the platform.