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Fixed-point gas detector can be bump-tested.

XgardIQ is an intelligent and versatile gas detector and transmitter, fitted with a variety of flammable, toxic or oxygen gas sensors. It may be installed with a remote sensor housing up to 15 metres from the transmitter.

Providing analogue 4-20mA and RS-485 Modbus signals, Crow-con's new device is optionally available with Alarm and Fault relays and HART communications. This 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. The set of output interfaces ensures compatibility with virtually any control system from gas detection panels, to PLCs, DCS' and SCADA systems.

To minimise the time that operators must spend in the hazardous area performing routine maintenance, sensor modules can be "hot-swapped" without a hot-work permit. Engineers thus avoid the need to carry compressed gas cylinders.

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

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Title Annotation:Research & Technology
Publication:Environmental Engineering
Date:Aug 1, 2015
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