Gas Flow Meters
USM Module Series
Ultrasonic Gas Meter Module USM Module Series
- Model
- USM Module Series
- Category
- Flow, Pressure & Process Instruments › Gas Flow Meters
Parameters: Flow velocity, Consumed volume
IndustriesEnergy & Biogas
Measurement PrincipleUltrasonic
Overview
The ultrasonic gas meter module (G2.5M-G4M) measures gas velocity by time-of-flight between opposed transducers in a patented L-shaped channel that lengthens the path and resists contamination. Low pressure loss, low power, a UART/TTL interface and OIML R137 / EN14236 Class 1.5 compliance suit compact meter designs.
Key Features
- Stable flow field distribution;
- High sensitivity and accuracy with intelligent software algorithm for Air,100% CH4 and different natural gases;
- Low pressure loss due to absence of obstructing objects within flow path;
- Low power consumption;
- UART/TTL interface with direct output for connection;
- Small footprint which permit compact designs;
- Compliant to OIML R137 and EN14236 class 1.5.
Measured Parameters
| Parameter | Measuring Range |
|---|---|
| Flow velocity | To be confirmed |
| Consumed volume | To be confirmed |
Specifications
| Measurement Range | USM-G2.5M: 0.025-4 m3/h, 0.88-141.26 ft3/h / USM-G4M: 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% |
| Power Consumption | MAX: 350mAh/year(40uA/h) (VCC=3.6V) (at:25°C or77°F) |
| Power Supply | 3-3.6VDC |
| Temperature Measurement | YES |
| Working Pressure | 0~20kPa / 0~2.90psi |
| Pressure Loss | 200pa / 0.029psi or less (at Qmax) |
| Working Temperature | -25℃-55℃/-77°F-131°F |
| Storage Temperature | -30°C-70oC/-86oF-158°F |
| Working Humidity | ≤95% RH without condensation |
Applications
- Gas meter manufacturing (OEM)
- Residential and commercial gas metering
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