wireless gas meter

wireless gas meter 1, double display; 2, Aluminum shell or steel shell.

 

wireless gas meter

 

FUNCTIONAL CHARACTERISTIC

♦  Accurately record the value showed on the meter screen. No lamp-house direct reading sensor or dithering defense two pulse counter are used in meter system. The reading dates are debugged ahead in wireless transfer circuit. Epistasy dates are checked time after time in order to confirm accuracy; ♦  Save historical datas;♦  Wireless communication, recorded data can be completed without entrance house;♦  Wide-range control;♦  Low-power design, great continuity;♦  Great reliability and stability;

♦  Build-in antenna;♦  Very easy operation.QUALIFICATION  

nominal flow rate: 1.6m3/h, 2.5m3/h, 4 m3/h   max operating pressure: 10KPa        measuring accuracy: B grade              pressure loss: <250pareading accuracy: 100%

center distance: 130 mm

screw thread: M30x2

Center Frequency: 470MHz

 

operating electric currentdormancy status: <3.8uA receiving signal:<12mAradioactive signal:<50mAaverage operating electric current:<25uAwireless communication speed rate:<100kbit/S

center frequency: 470Mhz

Communication Speed: 20 Khz

Reception sensitivity: -104dB

communication distance: distance between antenna and earth is 2 m, unobstructed communication distance is 1000 m

Battery capacity and operating lifelithium battery capacity: 7500mAh / eachlithium battery life span: 10yearslithium batteryl operating life: more than 8yearsstandard:GB/T6968-1997(diaphragm type gas meter)                JJD-577-2005 (diaphragm type gas meter certification)  

INSTALMENT OPERATING REQUIREMENT

 ♦   Keep the gas meter to standing status in transportation and installation. Don’t converse and invert. Don’t dash and shock; ♦   The gas meter should be install at drafty environment. Don’t install at bathroom, bedroom and combustible region; ♦   Take care of inlet and outlet direction. Inlet had been signed “inlet” at the side of meter shell. The distance to fire source should beyond 1.5m; ♦   It must be test carefully when installation finished. It can be used if no air leak but no direct-fired test; ♦   Keep away from damp and mordant environment in order to avoid gas meter corrosion when gas meter entrance warehouse, storage and transportation.

 

APPLICATION:

Natural gas, LPG and coal gas can be measured by the meter. Wireless meter system is made of basic meter, meter reading, wireless communication module, handy-meter and meter main station system.

wireless gas meter