VADTEL-MT G6
Smart Gas Meter with Microthermal Measurement Technology
The VADTEL-MT G6 is an intelligent gas meter designed for accurate measurement of natural gas volume using advanced microthermal sensing technology. The device combines high metrological precision, compliance with European regulatory standards, and comprehensive remote monitoring and control capabilities. It is suitable for residential and commercial applications and offers up to 10 years of autonomous operation.
The microthermal measurement system enables direct gas volume determination without any moving parts. Integrated microthermal sensors automatically convert measured volume to standard billing conditions (15 °C, 1013.25 mbar) without requiring external temperature or pressure sensors. This technology ensures long-term accuracy and measurement stability throughout the meter’s service life.
The VADTEL-MT G6 can operate as a standalone meter or as a component of a telemetry system.
Key Features
- Gas measurement at basic condition
- IP65 ingress protection rating
- Dual battery - Independent power supply for metrology and remote communication
- Expected metrological battery lifetime > 6 years
- LCD display
- Intuitive user interface, three function keys
- Remote FW update
- Built-in solenoid valve for deactivation/ activation of gas supply
- NB-IoT version with better reachability and better energy efficiency compared to GPRS
Remote Communication Capabilities
The meter is equipped with an integrated telemetry module supporting the following communication protocols:
- GPRS/NB-IoT (optional: LoRaWAN, RS-485) It enables secure transmission of consumption data, event logs, device status, and diagnostic information to centralized platforms. All data handling adheres to the requirements of the General Data Protection Regulation (GDPR).
Metrological Characteristics
- Flow range: 0.06 – 11 m³/h
- Accuracy: Class 1.5: ±1.5 % from Qmin to Qt, ±3 % from Qt to Qmax Class 1: ±1,0% from Qmin to Qt, ±2 % from Qt to Qmax
- Operating temperature range: –40 °C to +55 °C
Regulatory Compliance
- Certified in accordance with the European Measuring Instruments Directive (MID – 2014/32/EU)
- Complies with EN 1359 and EN 12405 standards.
- Bears the CE marking and is approved for use in hazardous areas in compliance with the ATEX Directive.
Security and Reliability
- Multi-layer anti-tamper protection
- Built-in self-diagnostic functionality
- Integrated remotely controlled shut-off valve
- Long-life communication battery
Technical Specifications
| Technical data | Value / Specification |
|---|---|
| Maximum flow rate Qmax | 11 m³/h |
| Transitional flow rate Qt | 0.6 m³/h |
| Minimum flow rate Qmin | 0.06 m³/h |
| Starting flow rate | ≤0.012 m³/h |
| Maximum operating pressure | 0.5 bar |
| Accuracy class | 1.5 |
| Maximum pressure loss | ≤2 mbar |
| Operating temperature | -40 to +55 °C Relative humidity ≤93% without condensation |
| Gas temperature | -25 to +55 °C |
| Connection | Flanged DN 40 or threaded Rp1¼" |
| Protection class | IP65 |
| ATEX approval | 1Ex ib IIB T4 Gb X |
| High temperature resistance | “T” marking |
| Mechanic environment class | M1 |
| Electromagnetic environment class | E2 |
| Communication module | GPRS: Removable SIM, Integrated Quad band with internal antenna, Sim-on-Chip (on request) / NB-IoT: Removable SIM, Integrated Multi band with internal antenna, Sim-on-Chip (on request) |
| Battery (Metrology) | Lithium battery module 3.6 V / 4 Ah, non-field replaceable Lifetime > 6 years in standard operation mode |
| Battery (Communication) | Lithium-Ion Polymer low-temperature battery module 3.7 V / 2 Ah, non-field replaceable Lifetime depends on signal level and communication frequency |
| Dimensions | 282 × 136 × 134 mm |
