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Wiress remote transmission meters made by ZHEJIANG SAPPHIRE METER is a new high-tech measuring meter which accords with standards of GB/T6968-2011<Diaphragm Gas Meter>, CJ/T112-2008<IC Card Diaphragm Meter>and JG/T162-2009<Remote Transmission Meter Reading System for Residence>. This kind of lighter gas meter has the functions of wireless automatic data reading, automatic counting, anti-theft, status monitoring, and valve control etc. Through low-energy consuming wireless communication technology wireless remote transmission meters can automatically read and monitor gas data. Lighter gas meter solves the difficulties of indoor reading, delayed data transmission and inconvenient management. This makes gas consumption more humanistic for users to use gas before they actually pay for it. This kind of meter has good cost performance and especially suitable for household gas measurement. Lighter gas meter is one of the best gas measuring instruments for modernized gas management.
Main performance index
Power supply | DC6V (4 5 # batteries / 6V lithium batteries), the service life: dry batteries ≥ 10 months, lithium batteries is optional |
Type | G1.6/G2.5/G4 |
Measurement grade | B grade |
Power-down data retention time | ≥10 years |
Measurement signal | Reed pulse, direct reading module signal |
Wireless communication frequencies | Using the ISM-470MHZ frequency band, no need to apply new frequency, in line with the Authority’s technical requirements of micro-power on short distances |
Modulation | GFSK |
Transmit Power | 10mW-50mW |
Receiver sensitivity | -112dBm |
Wireless communication rate | 9600bps |
Wireless communication distance | 1.2 km, open area (no shelter) |
Current | Static current:≤15uA |
Data Security | 8-bit and checking & encryption algorithms, secure and reliable data transmission |
Working environment | Temperature: -25°C ~ 70°C,relative humidity: RH≤93% |
Design Reference Standards | - "GB/T6968-2011 Diaphragm Gas Meters" - "Micro-power (short distance) radio equipment Interim Regulations" |
Maximum reading | 99999.999m³ |
Minimum reading | 0.001m³ |
Air tightness | ≤15Kpa no leakage |
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