Product Details
Product Description
Product Description
Introduction
USM-RA/RS Series Ultrasonic Gas Meter is a type of electronic meter that adopts TOF (Time of Speed) principle to measure flow velocity of gas medium. Employing advanced ultrasonic technology, this meter ensures high-precision, wear-free gas flow measurement, providing accurate and reliable results over time.
With Cubic's advanced algorithm technology, the Cubic ultrasonic gas meter offers excellent adaptability to real gas conditions and can accurately measure natural gas, natural gas with 23% hydrogen (H₂), and LPG.
USM-RA/RS Series integrates seamlessly with GPRS, NB-IoT, and other IoT technologies, facilitating real-time remote monitoring and management. This allows users to effortlessly track gas consumption and monitor the meter's status from anywhere.
Both steel and aluminum case options are available for the gas meter.
Designed to operate effectively in extreme conditions, the USM-RS-L series performs reliably across a wide temperature range from -40℃ to +60℃, making it suitable for even the harsh environments.
With class 1.5 accuracy and Compliant with MID and OIML, this meter is suited for residential applications in the global market.
Features
1. Long-time Accuracy
Ultrasonic technology features no mechanical wear, ensuring no accuracy degrade over long-term usage and no magnetic field effects
2. Good Gas Sources Adaptability
Various real-gas test and intelligent software algorithm ensure compatibility with different gas sources.
3. Low Pressure Loss & Maintenance-free
With no moving parts, the meter offers minimal obstruction to gas flow and eliminates wear and tear, requiring no maintenance.
4. Real-time Temperature Correction
Temperature correction is standard, and pressure correction can be configurable.
5. Anti-contamination & High Corrosion Resistance
Unique hardware ensures reliable performance in dusty gas and corrosion resistance, while optimized software maintains accurate signals in dust-filled gas.
6. Low Power Consumption
Both hardware and software patent design ensure ultra-low power consumption, enabling a battery lifespan of over 10 years.
7. Integrated Remote Transmission Modules
Built-in GPRS and NB-IoT modules allow real-time gas consumption monitoring and meter status management.
8. Instant Alarms for Easy Service
Alerts are triggered for tampering attempts, low battery levels, and battery removal, ensuring timely service.
9. Strong Expandability
The fully electronic design supports easy expansion for additional functions such as remote charging, valve control, and various alarms.
Specifications
| Measurement Range | USM-RA-G1.6: 0.016~2.5 m³/h [0.57 ~ 88.29 ft³/h]
USM-RA-G2.5: 0.025~4 m³/h [0.88 ~ 141.26 ft³/h]
USM-RA-G4: 0.04~6 m³/h [1.41 ~ 211.88 ft³/h] | USM-RA-L-G1.6: 0.016~2.5 m³/h [0.57 ~ 88.29 ft³/h]
USM-RA-L-G2.5: 0.025~4 m³/h [0.88 ~ 141.26 ft³/h]
USM-RA-L-G4: 0.04~6 m³/h [1.41 ~ 211.88 ft³/h] | USM-RS-G1.6: 0.016~2.5 m³/h [0.57 ~ 88.29 ft³/h]
USM-RS-G2.5: 0.025~4 m³/h [0.88 ~ 141.26 ft³/h]
USM-RS-G4: 0.04~6 m³/h [1.41 ~ 211.88 ft³/h] | USM-RS-L-G1.6: 0.016~2.5 m³/h [0.57 ~ 88.29 ft³/h]
USM-RS-L-G2.5: 0.025~4 m³/h [0.88 ~ 141.26 ft³/h]
USM-RS-L-G4: 0.04~6 m³/h [1.41 ~ 211.88 ft³/h] |
| Accuracy | Class 1.5 | Class 1.5 | Class 1.5 | Class 1.5 |
| Error (@ -25℃~+55℃) | Qmin≤Q<0.1Qmax: ±3%;
0.1Qmax≤Q≤Qmax:±1.5% | Qmin≤Q<0.1Qmax: ±3%;
0.1Qmax≤Q≤Qmax:±1.5% | Qmin≤Q<0.1Qmax: ±3%;
0.1Qmax≤Q≤Qmax:±1.5% | Qmin≤Q<0.1Qmax: ±3%;
0.1Qmax≤Q≤Qmax:±1.5% |
| Additional permissible error outside the temperature range from -25℃ to +55℃ for every 10℃ deviation from the range limit | - | ±0.4% | - | ±0.4% |
| Gas Medium | Natural Gas, Natural Gas+23%H2, LPG | Natural Gas, Natural Gas+23%H2, LPG | Natural Gas, Natural Gas+23%H2, LPG | Natural Gas, Natural Gas+23%H2, LPG |
| Case Housing | Aluminium Case | Aluminium Case | Steel Case | Steel Case |
| Battery | 1pc of 3.6V 19Ah Lithium battery | 1pc of 3.6V 19Ah Lithium battery | 2pcs of 3.6V 8.5Ah Lithium battery | 2pcs of 3.6V 8.5Ah Lithium battery |
| Connector Type | Screw thread, G1-1/4 | Screw thread, G1-1/4 | Screw thread, M30*2 | Screw thread, M30*2 |
| Dimensions (mm) | 210*148*113.5 | 210*148*113.5 | 230.5*156*89.6 | 230.5*156*89.6 |
| Weight (kg) | 1.8 | 1.8 | 1.6 | 1.6 |
| Center Distance of Connectors (mm) | 110 | 110 | 130 | 130 |
| Working Pressure | 0~20kPa / 0~2.90psi | 0~20kPa / 0~2.90psi | 0~20kPa / 0~2.90psi | 0~20kPa / 0~2.90psi |
| Pressure Loss | 200pa / 0.029psi or less | 200pa / 0.029psi or less | 200pa / 0.029psi or less | 200pa / 0.029psi or less |
| Working Temperature | USM-RA-Series: -25℃～55℃; -13℉ ~ 131℉ | USM-RA-L-Series: -40℃～60℃; -40℉ ~ 140℉ | USM-RS-Series: -25℃～55℃; -13℉ ~ 131℉ | USM-RS-L-Series: -40℃～60℃; -40℉ ~ 140℉ |
| Storage Temperature | USM-RA-Series: -25℃～70℃; -13℉ ~ 158℉ | USM-RA-L-Series: -40℃～70℃; -40℉ ~ 158℉ | USM-RS-Series: -25℃～70℃; -13℉ ~ 158℉ | USM-RS-L-Series: -40℃～70℃; -40℉ ~ 158℉ |
| Protection Class | IP65 | IP65 | IP54 | IP54 |
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