© Munters AB, 2015
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Calibrating against infrared or in air temperature sensors generally results in less accuracy than the basic
sensors have without calibration.
CAUTION
Only calibrate the sensors if you have reason to believe that they are producing
inaccurate results.
To calibrate the sensor:
1. Obtain an accurate reference sensors and a pail of water at the approximate required
temperature.
2. Stir the reference sensor together with the Farm Premium sensor vigorously in the bucket of water.
Keep hands off the sensor itself, so that it responds accurately to the water temperature. Stirring is
necessary to preclude stratification within the bucket of water.
3. Call out the accurate reading to a second person standing at the Farm Premium. Walkie-talkie
radios may be a good idea.
4. The individual at the controller should double-check that you are calibrating the correct sensor.
You might warm/cool the sensor temporarily to see which sensor changes temperature
appropriately.
5. Once you determine the correct temperature and allow approximately one minute for
stabilization in the water, adjust the sensor reading at the controller.
6. Offset the factor using the left/right arrow keys.
•
Refer to Temperature Curve, page 15.
9.2
Humidity Calibration
To calibrate the humidity level, obtain a suitable humidity test kit and use the procedures described there.
They are commonly available via the Internet.
CAUTION
Only calibrate the sensors if you have reason to believe that they are producing
inaccurate results.
•
Adjust the Farm Premium reading as needed using the left/right arrow keys.
•
Refer to Humidity Treatment, page 24.
TEMPERATURE
CALIBRATION
Sensor Temp° Factor
1
78.2
1.6
2
86.4
0.9
3
83.0
-1.5
4
86.2
0.8
5
85.2
-1.6
6
84.2
0.0
HUMIDITY CALIBRATION
Sensor Humidity° Factor
In
58.9
2.3
Out
N/A
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Press Left/Right Arrows to Calibrate
