Operation; Recommendations; Operating The Model Ca846 - AEMC CA846 User Manual

4.1

Recommendations

• For reliable measurements, let the readings stabilize. The hygrometer
and temperature sensor must reach equilibrium with the medium mea-
sured.
• Avoid temperature measurement errors induced by too short mea-
surement time, sunshine during the measurement, heating, cold outer
walls, air draft (e.g. fans), radiating sources including hand and/or body
heat, etc.
• Avoid humidity measurement errors induced by steam, water splashes,
dripping water or condensation on the sensor, etc.
• Avoid sensor contamination induced by particles in the air or measure-
ments in powder like substances. Contamination may be avoided by
measuring through a filter (user supplied). The filter must be cleaned
or replaced periodically, depending upon the degree of contamination
at the measurement site.
4.2

Operating the Model CA846

1. Unscrew the protective metal tube covering the sensor.
2. Set the power switch to the desired %RH or °C/°F range.
3. Let the reading(s) stabilize (%RH takes at least 60 seconds to reach
90%).
4. Read the display.
5. After use, screw the protective metal tube back onto the sensor.
6. Turn the instrument OFF when finished.
8
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CHAPTER 4

OPERATION

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