Introduction
USM Series Ultrasonic Gas Flow Meter G2.5/G4 is a type of electronic meter that adopts TOF (Time of Speed) principle to measure flow velocity of gas medium, with class 1.5 accuracy and high stability, USM-G2.5/G4 is widely applied for residential natural gas metering application.
Features
1.Innovative ultrasonic gas flow sensor technology;
2.Built-in temperature compensation;
3.High measurement sensitivity and accuracy with intelligent software algorithm for air,100% CH4, H1 and different natural gases;
4.Long-term stability of accuracy;
5.Anti-contamination, high corrosion resistance;
6.Low pressure loss due to absence of obstructing objects within flow path;
7.No magnetic induction elements, free from magnetic field effect;
8.Low power consumption, long lifespan;
9.Low operation & maintenance cost;
10.Compact size, light weight, easy installation;
11.Compliant to OIML R137 and EN14236 class 1.5;
12.GPRS and NB-IoT solutions are optional.
Specifications
| Measurement Range | USM-G2.5: 0.025~4 m³/h [0.88~ 141.26 ft³/h] USM-G4: 0.04~6 m³/h [1.41~ 211.88 ft³/h] |
| Accuracy | Class 1.5 |
| Error | Qmin≤Q<0.1Qmax: ±3%; 0.1Qmax≤Q≤Qmax:±1.5% |
| Battery | 3.6V Lithium battery |
| Connector Type | Aluminum case: Screw thread, G1-1/4 Steel case: Screw thread, M30*2 |
| Dimensions(mm) | 239*151*102 |
| Weight(kg) | 1.1 |
| Center Distance of Connectors (mm) | 130 |
| Working Pressure | 0~50kPa / 0~7.25psi |
| Pressure Loss | 200pa / 0.029psi or less |
Applications
AMI smart gas meter solutions
AMR smart gas meter solutions
IC card prepayment gas meter solutions
