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Chapter 1. Installation and Wiring
1.5.4 Pressure Range
The moisture probe always senses the correct water vapor pressure regardless of the total ambient pressure. The
moisture sensor measures water vapor under vacuum or high pressure conditions from as little as a few microns of Hg
to as high as 5000 psi total pressure.
1.5.5 Long-Term Storage & Operational Stability
Sensors are not affected by continuous abrupt humidity changes or damaged by exposure to saturation conditions even
when stored. However, you should store probes in their original shipping containers in a clean, dry location. If the
probe is saturated during storage, refer to "Moisture Condensation" on page 3 before installing the probe. For best
performance, do not store probes longer than one to two years from their calibration date.
1.5.6 Interference Effects
The sensor is completely unaffected by the presence of a wide variety of gases or organic liquids. Large concentrations
of hydrocarbon gases, Freon
, ozone, carbon dioxide, carbon monoxide, and hydrogen have no effect on sensor water
vapor indications. The sensor will operate properly in a multitude of gaseous or non-conductive liquid environments.
1.5.7 Corrosive Materials
Avoid all materials that are corrosive or otherwise damaging to aluminum or aluminum oxide. These include strongly
acidic or basic materials and primary amines.
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moisture.IQ User's Guide
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