Product Description
Prepaid RF Card Smart Gas Meter-ZG-D-4.0 Willfar
Company Profile
Willfar Information Technology Co., Ltd.
- Established in 2004;
- Listed on the STAR Market of the Shanghai Stock Exchange in December 2019;
- Leading supplier of meter reading (AMI) equipment and operation service;
- The first company to develop "One DCU Reading Multi-meter" solution in China;
- The first company to have large-scale application of technologies and systems like "CPU smart-card Charge and Control", "One DCU Reading Multi-meter", LoRa-based RF Communication and "District Metering Area (DMA)”
Introduction
1. The ZG-D-4.0 gas meter complies with the standard of OIMLR31/OIMLR137/EN1359. It is suitable for units such as resource management of large-scale enterprise, urban gas company, property Management Company and department of data collecting and measuring.
2. The ZG-D-4.0 smart gas meter can be configured for prepaid gas meter(IC card, STS) through functional selection.
3. The G-D-4.0 smart gas meter uses a non-contact Mifare one(M1) card/RF CPU card, which conform to the ISO/IEC14443A standard. If the data in card is STS Token, it complies with IEC62055-41.
4. Accuracy class of ZG-D-4.0 is class B
Technical Parameters
| Items |
Parameters |
| Specification |
ZG-D-1.6 |
ZG-D-2.5 |
ZG-D-4.0 |
| qmax(m3/h) |
2.5 |
4.0 |
6.0 |
| qmin(m3/h) |
0.016 |
0.025 |
0.04 |
| Maximum permissible errors |
Class 1.5
qmin≤q＜0.1qmax: ±3%
0.1qmax≤q≤qmax: ±1.5%
|
| Normal working condition |
0.5KPa～50KPa |
| Total pressure loss |
≤200Pa |
| Cyclic Volume |
1.2dm³ |
| Temperature of metering medium |
-25～50℃ |
| Working voltage |
3.6V |
| Data interface |
RF Card |
| Anti-hazard classes |
Exib ll BT3 |
| Severity levels |
E1, B |
| Valve life |
≥10,000 |
Certificate
OIMLR31/OIMLR137/EN1359
Features
1. Integrated design of gas meter and valve
2. Non contact IC card(M1) design
3. IP65 protection
Basic Functions
1. LCD display
2. Prepayment, Max.8 steps of gas tariff
3. Insufficient gas warning
4. Self-defined overdraft
5. Anti-storage (purchase limitation)
6. Anti-magnetic Interference & record
7. Low-Battery detection & record
8. Anti-tamper detection & record
9. History data.
Advanced Functions
1. Support purchase gas by mobile
2. Holidays Management
3. Non switch-off during off-duty
4. Monthly free consumption gas
5. Collect taxes and fee by gas charges
Situations
Resource management of large-scale enterprise, urban gas company, property Management Company and department of data collecting and measuring.
Dimensions
| Dimensions |
G1.6/G2.5/G4 |
| A |
90/110/130 |
| B |
G3/4”,G1”,G1-1/4”,NPT1-1/2” |
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