Intelligent fixed-point gas detector

XgardIQ is an intelligent and versatile gas detector and transmitter compatible with Crowcon’s full range of sensor technologies. It is available fitted with a variety of flammable, toxic or oxygen gas sensors or may be installed with a remote sensor housing up to 15m from the transmitter.

Providing analogue 4-20mA and RS-485 Modbus signals as standard, XgardIQ is optionally available with Alarm and Fault relays and HART communications. This comprehensive set of output interfaces ensures compatibility with virtually any control system from gas detection panels, to PLCs, DCSs and SCADA systems. HART communications enables diagnostic checking and maintenance using industry-standard communications tools remotely or locally in the hazardous area. The HART feature also enables XgardIQ to be logged and monitored automatically on asset management systems.

XgardIQ offers powerful features that help to minimise the time that operators must spend in the hazardous area performing routine maintenance functions. Sensor modules can be simply and quickly 'hot-swapped' without a hot-work permit, either for replacement with a new pre-calibrated replacement module, or for temporary removal to a safe area for calibration. Engineers avoid the need to carry compressed gas cylinders on-site, and the sensor module can be tested and calibrated in the safety of a laboratory.

Users have the option to perform a quick and simple bump test rather than full calibration to verify that sensors are fully operational. Using the ‘Speedy Bump’ and ‘Smart Bump’ options, users can perform interim safety checks in minimal time, and using the minimum amount of gas.

XgardIQ uses buttons and a bright OLED (organic light emitting diode) display rather than conventional magnets and LCDs for configuration and adjustments. The OLED display enables status checking at a glance and from a distance; whilst the use of buttons avoids the risk of special tools (e.g. magnets) being lost and thus resulting in aborted calibration attempts.