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F-Guard IR3 H2 HD User Manual
Environment
•
Environmental conditions including but not limited to dust, snow or rain can reduce the
detectors sensitivity and require additional consideration.
Hot Work
•
Arc welding should not be performed within 12 ft. (3.5m) of the detector. It is
recommended that the system be inhibited during welding operations in situations
where the possibility of a false alarm cannot be tolerated.
•
Gas welding requires a system inhibit, since the gas torch is an actual fire.
•
Arc welding rods can contain organic binder materials in the flux that burn during the
welding operation and are detectable by the device.
•
Welding rods with clay binders do not burn and should not be detected. However, a
system inhibit is always recommended, since the material being welded may be
contaminated with organic substances (paint, oil, etc.) that will burn and may be of the
size that should be detected.
