03/19/2009 • Machine safety, industrial safety

Gas Detection in Explosive Atmospheres

Honeywell has launched Signalpoint Pro, an Intrinsically Safe (IS) certified gas detector that offers a low-cost solution for the detection of toxic and oxygen gases in potentially explosive atmospheres worldwide. The detector is suited to a wide range of indoor and outdoor applications, detecting toxic gases or Oxygen in an IS 2-wire 420 mA format. This wiring configuration makes the instrument particularly suited for retrofitting other 2-wire IS devices including the Sieger Series 2000 range of 2-wire IS toxic gas detectors.

The device offers very high reliability and ease of use; its smart gas sensors are automatically recognised when plugged into the detector and access to the sensor does not require opening the main terminal housing. This reduces down-time during sensor replacement procedures. The detector full scale gas range and span calibration points can be adjusted to suit individual requirements, making it a flexible device suited to a wide range of applications.

The instrument utilizes a magnetically activated switch, permitting initiation of calibration and test routines without opening the enclosure or having to obtain a hot work permit. In addition, on-board diagnostics provide fault and warning codes on the display that are invaluable when troubleshooting an installation. The system is ATEX, UL and CSA certified. Detectable gases are Oxygen, Hydrogen Sulphide, Carbon Monoxide, Sulphur Dioxide, Ammonia, Nitrogen Dioxide and Hydrogen.

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