TQ-Serie drahtlose Übertragung Gaszähler

Scope of applications: Apply to flow measurement of inflammable gas, such as natural gas, liquefied oil gas, coal gas and etc. Radio meter reading. Whole meter is make up of base table, counter readout device of gas meter and radio communication model, hand-held meter reader and main station system of meter reading Technical features: 1.Nominal flow 2.5m3/h,4 m3/h 2 MWP 10KPa 3.Measuring precision B grade 4.Pressure loss less than 250pa 5.Accuracy of reading meter 100% 6.Working Current When in dormant condition less than 3.8uA When receiving signal less than 12mA When send out signal less than 30mA Average wroking current less than 25uA 7.Wireless communicating speed less than 100kbit/S a.Communcating Distance wire can be 2 m away from ground, obstacle-freecommunicating distance is more than 300m b. lithium battery volumn and working life c. lithium battery volumn: 3500mAh/per unit d. lithium battery working life 10 years e. lithium battery normal working time more than 4 years f.Using standard GB/T6968-1997 Diaphragm Gas Meter g.JJD-577-2005 Verification and Regulation of Diaphragm Gas Meter