Product Overview
The UGM-G series ultrasonic gas meter is designed for gas measurement in closed pipe systems. It is mainly composed of a fluid passage, ultrasonic transducer, indicating device, main control module, and battery.
This ultrasonic gas meter measures the downstream and countercurrent propagation time of ultrasonic waves in the gas flow path, and it can directly display instantaneous flow and cumulative volume flow. The meter uses pure electronic metering with no mechanical loss.
Key Features
- Pure electronic metering with no mechanical loss
- Direct display of instantaneous flow and cumulative volume flow
- High measurement accuracy
- Long-term stability of differential performance
- Powered by 4 AA 1.5V alkaline batteries for wireless communication and valve control
- Built-in lithium electronics designed for the ultrasonic measurement module
- LoRa or NB-IoT wireless communication options
- External DC9V power input on applicable models
- Gas alarm passive switch signal input on applicable models
Measured Gases
The UGM-G series ultrasonic gas meter can be used to measure the following gases:
- Natural gas
- Liquefied petroleum gas
- Air
- Nitrogen
- Other inert gases
Metrological Specifications
- Accuracy level: Level 1.5
- Indication error at qmin ≤ q < qt: ±3%
- Indication error at qt ≤ q ≤ qmax: ±1.5%
- Maximum working pressure: 10 kPa
Electrical and Communication Specifications
- Internal lithium battery: DC3.6V ER lithium battery for the ultrasonic metering module
- Dry battery: AA 1.5V × 4
- External power supply support: DC9V input
- Wireless communication: LoRa or NB-IoT
- Unit pulse output: 10 L/P
- Infrared communication
- Communication protocol: CJ-T 188
- Baud rate: 1200 bps
Display and Data Functions
The LCD display can show battery level, battery replacement reminder, recharge reminder, valve status, and abnormal status information.
It also supports information display for remaining amount, purchase amount, unit price, and accumulation. The meter includes storage of self-diagnosis alarm information for abnormal flow rate, ultrasonic sensor status, battery voltage, and valve status.
Use and Storage Conditions
- Working temperature: -20°C to +50°C
- Storage ambient temperature: -25°C to +55°C
Protection and Safety Information
- Degree of protection: IP65
- Explosion-proof grade: ExibIIBT3 Gb