Vaisala HUMICAP MMT162 Guía de usuario Pagina 57

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Chapter 6 ___________________________________________________ Calibration and Adjustment
VAISALA ________________________________________________________________________ 55
Adjustment Points
Humidity Measurement
You can adjust the humidity measurement of the MMT162 in one or two
points:
- One-point adjustment changes the RH measurement offset or gain.
The transmitter determines which coefficient (offset or gain) should
be changed based on the measured humidity.
- Two-point adjustment changes both offset and gain. The following
requirements apply to the two points:
- The adjustment must be started from the dry end of the
measurement, with the point being < 50 %RH.
- The second point must be > 50 %RH.
- There must be at least 30 %RH difference between the points.
Temperature Measurement
You can adjust the temperature measurement of the MMT162 in one or
two points:
- One-point adjustment changes the T measurement offset.
- Two-point adjustment changes both offset and gain. The following
requirements apply to the two points:
- The adjustment must be started from the cool end of the
measurement.
- The second point must be at least 30 °C warmer than the first
point.
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