Item | YQW-SC300-G1.6 | YQW-SC300-G2.5 | YQW-SC300-G4 | |
Normal flow rate Qn m³/h | 1.6 | 2.5 | 4 | |
Max.flow rate Qmax m³/h | 2.5 | 4 | 6 | |
Min. flow rate Qmin m³/h | 0.016 | 0.025 | 0.040 | |
Permissible Error | Qmin≤Q<0.1Qmax | ±3% | ||
0.1Qmax≤Q≤Qmax | ±1.5% | |||
Operating pressure range Kpa | 0.5-10 | |||
Total pressure loss(without valve) Pa | ≤50 | ≤110 | ≤170 | |
Startup flow rate | ≤0.5 | |||
Max Wireless communication distance | 800-1000m(Ideal open field environment) | |||
Operating Voltage: | Li-battery: 3.6V; 5# dry battery:4.8-6v | |||
Static operating current: | <30µA | |||
Wireless communication speed: | 9600bps | |||
Carrier frequency: | 433MHZ. | |||
Receiving sensitivity: | -100dBM | |||
Data-collection interval: | ≤2S | |||
Anti-thief and anti-dismantling design.
●One meter matches one wireless address and the address cannot be changed by others.
●With multifunctional Management System, Gas Company can manage the gas user's consumption easily.
● 4 pieces of AA dry battery and one high capacity Li-battery double power source design to guarantee the meter's regular service.
● Battery low reminding with meter's LED lighting till new batteries are installed.
● Battery Low Prompt:
This meter uses a High Capacity Li-battery and 4 pieces of AA dry battery. When the dry battery voltage is low the LED will keep on lighting and the valve in the meter will close automatically.
Under such condition, you should change the battery. When the battery voltage is low, the meter will also call attention to gas company through GPRS communication.
● Automatically data saving:
While battery low or magnetic disturbance, the meter will automatically saves the remaining amount before.
● Power off close:
When the batteries are taken out, the meter will close its motor valve automatically.
● Meter management system:
This meter is provided along with a gas management system.
