TQ series non-contact mode prepaid gas meter

Highlights: 1).Adopted non-contact mode--radio frequency technology and use radio to transmit data, completely solve problems of waterproofing, moistureproofing and anti-attack. 2).Microcomputer, micro memory technology. High-integration and reliablity. 3).It has the functions of anti-external electricity and magnetism attack. Gas meter will automatically stop valve when there is strong electricity and magnetism attack from outside. 4).It has function of pre-payment. Advantages: 1).Mechnical print wheel displays accumulated gas content, and liquid crystal displays residual gas content, high and reliable measuring accuracy. 2).Integrated design, all circuits and electric control valves are built in the meter, and outside gas chamber. Reliable at work and little pressure loss. 3).It has sound notification and liquid crystal display function during battery is shortage, gas content is deficiency and illegal operation happened. 4).It has data storage function, and even when changed battery. 5).It is easy to debug due to the configuration of left and right meters. Technical parameters: Nominal flow 1.6m3/h,2.5m3/h Measuring precision B grade MWP(maximum working pressure) 10kPa Pressure loss less than 250Pa Data storage time ≥100years Display resolution 0.01m3 Power supply mode Dry battery Serive lift of whole machine design ≥15years Ic card reading distance 0 10mm Ic card serive life ≥105 times Using standard GB/T6968-1997 Diaphragm Gas Meter CJ/T112-2000 IC Card Houshold DiaphragmGasMeter JJD-577-2005 Verification and Regulation of Diaphragm Gas Meter pressure loss curve Typical flow error curve