NB-IOT ultrasonic gas meter main board
NB-IOT ultrasonic gas meter main board
Introduction
Low power consumption as low as 12-20 UA (sleep current), high cost performance, ultra-small size, high reliability (-40 To 85℃ temperature experiment), rich peripherals, 485 transmission power supply, rich functions, multi-protocol integration
Parameter
1.Function
Measurement method | Ultrasonic |
Valve control | Open and close valve remotely |
Anomaly alert | Abnormal fault reporting |
Vibrating alarm | Vibrating alarm & close valve |
High temperature alarm | Alarm when above the set temperature and close valve |
Historical data storage | Store hourly, daily, and monthly data for 90 days |
433 linkage | Linkage closing valve |
2.Advantage
Low power consumption as low as 12-20 UA (sleep current), high cost performance, ultra-small size, high reliability (-40 To 85℃ temperature experiment), rich peripherals, 485 transmission power supply, rich functions, multi-protocol integration |
3. Technical parameter
Supply voltage | Main power:6V Backup power:3.0-3.6V |
Power supply mode | Main power + Backup power |
Screen display | Electronic display, button switch screen |
Ambient temperature | -40 TO 85 |
Wireless communication | NB-IOT whole network seven modes |
Pulse signal | Three wires: GND S1 S2 |
Motor port | Positive negative |
External storage | 256K |
AT settings | Pin type(4 Pin) |
4.Specification
Sleep voltage | 12-20UA |
Working current | 50UA |
Protocol | Big-endian hexadecimal |
Vibration | Sensitive detection |
Temperature | Close the valve at high temperature |
