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October 2007
Incorrect Dew Point
Display
5-8
If the dew/frost point reads incorrectly, first check the standard
preventive maintenance items:
Clean and balance the sensor mirror (refer to page 5-1).
An alternative method for checking the accuracy of the unit's
electronics is to use a precision resistance decade box in place of the
platinum thermometer. Wire the decade box to the unit's sensor
connector as shown in Figure 5-4 below, and verify that the resistance
settings shown in the table produce the temperatures shown.
Figure 5-4: Using a Resistance Decade Box
Maintenance
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