Product Overview
The BBUGM-S is a smart ultrasonic gas meter that uses transit-time measurement in a closed pipeline and directly displays instantaneous flow and accumulated volume. Its fully electronic measuring structure has no mechanical measuring wear and integrates valve control, data storage, and wireless communication.
The meter is available in G1.6, G2.5, and G4 versions for residential and commercial measurement of natural gas, liquefied petroleum gas, air, nitrogen, and other inert gases. LoRa or NB-IoT communication and a passive-switch input for gas-alarm linkage are available.
Key Features
- Fully electronic ultrasonic gas measurement
- G1.6, G2.5, and G4 versions
- Accuracy Class 1.5
- Integrated valve control
- Optional LoRa or NB-IoT communication
- Gas-leak alarm linkage
- Prepaid and stepped-price display functions
- Built-in diagnostics and abnormal-event records
- Battery powered with optional 9 VDC input
- Ex ib IIB T3 Gb explosion-proof rating
Flow Specifications
| Version | Permanent flow | Flow range |
|---|---|---|
| G1.6 | 1.6 m³/h | 0.016 to 2.5 m³/h |
| G2.5 | 2.5 m³/h | 0.025 to 4 m³/h |
| G4 | 4 m³/h | 0.04 to 6 m³/h |
Technical Specifications
| Parameter | Specification |
|---|---|
| Measured gases | Natural gas, LPG, air, nitrogen, and other inert gases |
| Accuracy class | Class 1.5 |
| Indication error, qmin ≤ q < qt | ±3% |
| Indication error, qt ≤ q ≤ qmax | ±1.5% |
| Maximum working pressure | 10 kPa |
| Operating temperature | -20 to +50 °C |
| Storage temperature | -25 to +55 °C |
| Displayed information | Battery status, valve status, remaining balance, purchase amount, unit price, and accumulated consumption |
| Metering battery | 3.6 V ER lithium battery |
| Metering-battery design life | 10 years |
| Communication and valve battery | Four AA 1.5 V batteries |
| External power | Optional 9 VDC input |
| Wireless communication | LoRa or NB-IoT |
| Other interfaces | Pulse output, infrared communication, and gas-alarm input |
| Pulse equivalent | 10 L/P |
| Infrared protocol | CJ/T 188 at 1200 bps |
| Protection rating | IP65 |
| Explosion-proof rating | Ex ib IIB T3 Gb |
Measurable and Restricted Gases
The meter can measure natural gas, liquefied petroleum gas, air, nitrogen, and other inert gases. It is not intended for hydrogen, oxygen, acetylene, hydrogen sulfide, or toxic and corrosive gases.
Typical Applications
- Residential natural-gas metering
- Commercial gas metering
- LPG consumption measurement
- Prepaid gas management
- Remote meter reading and valve control
- Gas-leak alarm linkage