STS NFC Card Prepaid Gas Meter
The STS NFC Card Prepaid gas metere is an STS (Standard Transfer Specification) compliant, RFID Card type, electronic valve controlled prepayment water meter. It adopts Philips Mifare S70 Card to realize Prepayment Function and bi-directional communication between water meter and vending center system for data tranfer. It can be top up with Stronpay vending software directly and communicate with AMI system via LORA-RF or NB-IoT module.
Main Features
- Meter body approved in accordance with MID by CMI
- Recharge by inputting 20-digit token code via RFID Card
- Low power usage and low failure rate
- Over 10 years’ data storage in absence of power
- Up to 10 years' battery life
- Reading through LORAWAN, NB-IOT and the system of GPRS/3G(on request)
- Low credit warning and low battery alarm
- Optional valve leakage warning
Metrological Parameters
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Type |
G1.6 |
G2.5 |
G4 |
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Nominal Flow Rate m³/h |
1.6 |
2.5 |
4 |
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Maximum Flow Rate m³/h |
2.5 |
4 |
6 |
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Minimum Flow Rate m³/h |
0.016 |
0.025 |
0.040 |
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Cyclic volume dm³ |
0.7 |
1.2 |
2 |
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Working Pressure KPa |
0.5-50KPa |
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Maximum permissible error % |
Qmin<Q<0.1Qmax: ±3; 0.1Qmin<Q<0.1Qmax: ±1.5 |
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Standard compliance |
OIML R137 (2012) / EN1359:1998/A1:2006 |
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Pressure Loss kPa |
<200 |
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Maximum Reading m³ |
99999.9 |
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Weight |
2.4kg |
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Vending Software
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RFID Card Parameters |
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|
Type |
Philips Mifare S79 Card |
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Inductive mode |
Initiative transmit, RF Powe-6dBm transmit every second |
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Material |
ABS, heat resistant, White color |
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Dimension |
86×55×4mm |
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Protection Class |
IP54 |
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Signal modulation |
GFSK |
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Communication speed |
1Mbit/s / M1 106KBPS |
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Operation Frequency |
2.44GHz / M1 Card 13.56MHz |
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Working life |
>5 years |
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Operating Temperature |
-20℃-+50℃ |
