Main Functionalities
n Electronic module
Ø Recharge
l remote command from server for top up
Ø Anti-tamper
l Removing battery: When the battery is removed from the meter, the valve will be closed automatically.
l Magnetic field interference: When there is magnetic field closed to the meter, the valve will be closed automatically.
l Lead sealing meter cover screw: The screws is protected by the lead dealing, So customer are not able to open the meter.
Ø Alarm:
l Low battery: When the battery power is used up.
l Low credit: When the credit is lower than a certain value.
Ø Real Time Clock(RTC)
l The meter is with a real time clock to record the events happened in the meter.
Ø Event record
l Tamper record
l Error record
l Battery replacement
Ø Monthly bill
l The monthly bill is storage in the meter for 12 months and can be transferred to AMR system via Lorawan communication
Ø Valve closed automatically
l balance amount reach zero m3
Ø Switchable prepaid/postpaid（Optional）
l The mode of prepaid and postpaid of the meter is switchable（Optional）
n Meter cover
Ø Protection level
l IP67
Ø Material
l Aluminium or galvanized steel
n Communication
Ø LoraWan
· The meter is with LoraWan communication which communicate with the LoraWan gateway
· Communication range up to 5km
Ø Valve control
l Integrated with meter body and is not removable
l Valve lifetime: 10,000 times open and close
l Valve will be alert when low battery
l Valve will be closed when there is tamper
l Valve will be closed when there is no credit
Ø Battery
l Battery Type Lithium , Battery AA
l Battery life: more than 10 years （Optional）
l Battery protected by open battery cover design （Optional）
Ø Meter LCD Display
· Display type: Digital and mechanical display
· Length of the number: 8 digits
Ø Display information
l Gas Usage m3
l Battery Level
l Signal Strength
l Date Time
l Valve Status
l Last Credit Balance
Ø Machanical meter
· Protection level: IP68
· Meter type: Diaphragm meter with built in shut-off valve
· Material: Aluminium or galvanized steel
· Connection: Male thread
· die-casting aluminum or Material: galvanized steel
l Installation: Vertical
T | G1.6 | G2.5 | G4 |
Nominal Flow Ratem ³/h
| 1.6 | 2.5 | 4 |
Maximum Flow Ratem³/h
| 2.5 | 4 | 6 |
Minimum Flow Ratem³/h
| 0.016 | 0.025 | 0.040 |
Cyclic volume dm³
| 0.8 | 0.8 | 1.2 |
Working Pressure KPa
| 0.5-50KPa | ||
Maximum permissible error %
| Qmin<Q<0.1Qmax: ±3; 0.1Qmin<Q<0.1Qmax: ±1.5 | ||
Standard compliance
| OIML R137 (2012) / EN1359:1998/A1:2006 | ||
Pressure Loss kPa
| <200 | ||
Maximum Reading m³
| 99999.9 | ||
Weight
| 2.4kg | ||