
Amphenol SGX Sensortech VQ548MP Catalytic Combustible Gas Sensor
Amphenol SGX Sensortech VQ548MP Catalytic Combustible Gas Sensor is a low-power, poison-resistant, and robust device in a certified flameproof enclosure. This compact pellistor is optimized for methane response for up to 5% volume in air and can detect other flammable gases and vapors. The sensor offers basic sensor performance to enable a suitable instrument to meet the various (Group 1) mining performance standards. The VQ548MP is intrinsically safe and features a low orientation effect and high resistance to mechanical shocks. The sensor is ATEX certified, IECEx certified, and UL recognized. Amphenol SGX Sensortech VQ548MP Catalytic Combustible Gas Sensor is ideal for use in battery operations and mining applications.Features
- Low power, designed for battery operation
- Flameproof enclosure
- High resistance to mechanical shocks
- Intrinsically safe
- Low orientation effect
- Compatible with instruments using VQ500 type sensor
- ATEX certified
- IECEx certified
- UL recognized (File E186043)
- Small size, 16mm x 20mm
Specifications
- PEI body material
- Ambient temperature range
- Operation/storage: -40°C to +60°C
- Certified:-40°C to +75°C
- 0 to 95% humidity range for operation and storage
- 2.9V to 3.1V DC supply to detectors
- 39mA to 47mA typical power (<96mA at power-on)
- 12mV/% minimum sensitivity (methane)
Recommended Circuit Diagram

Dimensions

Additional Resources
Published: 2019-02-06
| Updated: 2022-10-07