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OPERATING INSTRUCTIONS
Temperature sensor calibration procedure
The temperature sensors are attached to the monitor bottles. Follow the following instructions for proper
calibration (0 adjustments).
1. Remove the monitor bottle cover as shown in the figure.
2. Remove the sensor to be calibrated from the monitor bottle. Please note that refrigerator also has a
sensor for the temperature recorder in the left side of the upper monitor bottle.
3. Prepare a bottle or beaker with a solution of crushed ice and cold water. Agitate the mixture thoroughly.
4. Put the sensor to be calibrated in the mixture.
5. While continuously agitating the ice water mixture, monitor the temperature indicated on the display of the
sensor to be calibrated.
6. Wait for the temperature on the display to stabilize. If the display is not 0
o
C, calibrate using the following
procedure. If the display does indicate 0
o
C, proceed to step 7.
6-1. Press the CAL key for approximately 5 seconds until is displayed.
6-2. Enter the code of the probe to be calibrated using the numerical shift key ( ).
Upper chamber temperature sensor code is .
Lower chamber temperature sensor code is .
6-3. Press the CAL key. (This makes temperature display 0
o
C)
This key operation is canceled with the buzzer if the sensor temperature deviates over +/- 1.5
o
C.
In this case, consult with Sanyo dealer or service personnel.
6-4. The digital display will revert back to current chamber temperature. The calibration that was entered
in the previous step should now have an effect on the temperature display.
The digital display should now show indicate 0.0 0.2
o
C, if not, repeat step 6.
7. Take the sensor out of the ice water solution and wipe with a soft cloth.
8. Attach the sensor back into the monitor bottle by reversing the procedure in step 1 and 2.
* For the span adjustment, contact your service personnel.
Cover
Monitor bottle