دتکتور گاز Crowcon Xgard Type 6

Introduction Xgard Type 6

Flameproof thermal conductivity type gas detector

This version of Xgard is a Flameproof thermal conductivity type gas detector, designed to monitor binary gas mixtures (such as hydrogen in nitrogen, methane in carbon dioxide) in % volume concentrations. The detector relies on there being a substantial difference in the thermal conductivity properties of the gases in the mixture being monitored. Precautions should be taken to ensure that humidity in the gas mixture is kept to a minimum, and the operating temperature remains stable, otherwise the sensor readings may be affected. For a list of gas mixtures that can be detected using Xgard Type 6 please contact Crowcon. Xgard Type 6 is powered by 24 V dc (nominally) and provides a 4-20 mA signal (sink or source) proportional to the gas concentration. The detector is certified II 2 GD Ex db IIC T6 Gb, and is suitable for use in Zone 1 and Zone 2 hazardous areas. Electrical connections to the detector are made via the terminal block on the PCB shown below