Calibration Check - Anderson The Guardian III Manuel De L'opérateur

Calibration Check

The Guardian is fully calibrated at the factory before it is shipped to you. Please consult your Dealer for
assistance with the calibration procedure.
By running the Calibration Check Procedure, the Guardian verifies that the temperature displayed,
recorded temperature on the chart, and the sensor temperature are all in agreement.
EQUIPMENT REQUIRED (See illustration below)
• Guardian Recording Thermometer with Sensor Probe
• Ice Bath
• Thermometer
1. Using an agitated ice bath (bucket of 50% ice and 50% water that is stirred), completely submerge
the Guardian Sensor probe into the ice bath (bucket). The Guardian Recorder should be powered on.
2. After approximately five minutes, check the ice bath with a thermometer, verifying that the ice
bath temperature is 32°F (0.0°C).
3. Verify that the reading on the display of the Guardian Recording Thermometer reads 32°F (0.0°C).
Also verify that the pen position of the recording thermometer is at 32°F (0.0°C).
4. With the display reading 32°F (0.0°C) and the pen reading 32°F (0.0°C) the verification is complete.
5. The recording thermometer calibration is verified and the probe can be placed back into the milk
tank thermowell.
6. If the pen does not match the LED display reading and the LED display reading is correct, a pen
alignment should be performed. Please see pen alignment section for adjustments.
7. If the recorder temperature on the chart and the LED display are the same but are not within .75°F
(1°C) of 32°F (0.0°C), an input calibration should be performed. Please consult your Dealer for
assistance with the calibration procedure.
Anderson Guardian
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