住宅超声波气体流量计USM-G2.5系列USM超声波气体流量计是一种电子仪表是采用TOF(速度的时间)原则,气体介质的测量流速,带班1.5高精度,高稳定性,USM-G2。5 / G4被广泛地应用于住宅天然气计量应用。特点 - 创新的超声波气体流量传感器技术;- 内置温度补偿;- 高测量灵敏度和准确度与空气的智能软件算法,100%CH 4,H1和不同的自然气体;- 准确的长期稳定性;- 防污染,高耐腐蚀性;- 低压力损失由于不存在妨碍流路内的对象的;- 无磁感应元件,从磁场效应的自由;- 低功耗,寿命长;- 低运行维护费用; - Compact size, light weight, easy installation; - Compliant to OIML R137 and EN14236 class 1.5; - GPRS and NB-IoT solutions are optional. Specifications Measurement Range (m3/h) - USM-G2.5: 0.025-4 Accuracy - Class 1.5 Connector Type - Screw thread G1 1/4" or M30*2 Dimensions - 239*151*102mm Weight - 1.1kg Center Distance of Connectors (mm) - 130 Battery - 3x AA alkaline cells or ER34615/3.6V Error - Qmin≤Q< Qt: ±3%; Qt≤Q≤Qmax:±1.5% Working pressure - 0-20kPa Working temperature - -20℃~50℃ Storage temperature - -20°C ~ 60°C Ex-proof Approval - ExiblIBT3 Gb Waterproof Grade - Aluminum: IP54; Stainless steel: IP65 Applications Residential Ultrasonic Gas Meter Natural gas is the main part of power supply for residents nowadays, the market demand for residential natural gas meters is huge.