Ultrasonic Gas Metering Module
The GFS500 ultrasonic gas meter module is a core metering solution developed by Santrua Tech for next-generation smart gas meters. Backed by years of experience in ultrasonic metering technologies, this module combines high accuracy, low power consumption, and advanced diagnostics to support G4, G16, and G40 applications in residential, commercial, and industrial settings.
Built on Santrua’s proprietary R&D in ultrasonic heat and gas metering, the GFS500 ultrasonic gas meter module ensures reliable measurement, seamless system integration, and full compatibility with NB-IoT, LoRaWAN, and other smart metering infrastructures.
Key Features
High Accuracy and Adaptability
Wide dynamic gain range for consistent performance across various gas types and temperatures
Adaptive calibration compensates for gas composition and environmental changes
Transducer aging compensation and certified electromagnetic interference resistance
Integrated Metering Architecture
Built-in virtual indexer functionality
Ultra-low power consumption, supporting low-power gas meter design
Embedded temperature and pressure compensation
Self-Diagnosis and Auto-Recovery
Real-time status reporting: flow rate, speed of sound, signal strength, and signal-to-noise ratio
Intelligent fault detection and automatic recovery after disturbance
Strong anti-interference capabilities with interference level monitoring
Fully Independent R&D and Production
Independently developed and manufactured by Santrua Tech
Full control over key components and system integration
Technical Specifications
| Model No. | GFS500-G4 | GFS500-G16 | GFS500-G40 |
|---|---|---|---|
| Applicable Meter Sizes | G1.6 / G2.5 / G4 | G6 / G10 / G16 | G25 / G40 |
| Accuracy Range | ±3% (16–250 l/h) ±1.5% (400–7200 l/h) | ±3% (0.06–1 m³/h) ±1.5% (1–25 m³/h) | ±3% (0.25–4 m³/h) ±1.5% (4–65 m³/h) |
| Dimensions (L×W×H) | 94 mm × 56 mm × 38 mm | 122 mm × 60 mm × 58 mm | 154 mm × 110 mm × 100 mm |
| Starting Flowrate | 3 l/h | 8 l/h | 20 l/h |
| Compatible Gases | Air, Natural Gas, LPG, Biogas, Synthetic Gas |
|---|---|
| Operating Temperature | -25°C to +55°C |
| Operating Humidity | 10% – 90% RH |
| Operating Pressure | 0 kPa – 50 kPa |
| Pressure Loss | ≤100 Pa （@ Qmax） |
| Temperature Measurement Accuracy | ±0.5°C (at -25°C to +55°C) |
| Pressure Measurement Accuracy | ±0.2 kPa (from 80 kPa to 120 kPa) |
| Communication Interface | UART |
| Power Supply | 3.0 V – 3.6 V |
| Power Consumption | Standby: 15 μA Measurement: 40 μA |
| Compliance Standards | EN 14236:2018 Ultrasonic Domestic Gas Meters GB/T 39841-2021 Ultrasonic Gas Meters |
