Field calibration
for thermometers
317c 09.10
Field calibration for thermometers
TPI 317c FIELD CALIBRATION
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Headquarters:
9615 SW Allen Blvd.
Beaverton, OR 97005
USA
503-520-9197
Fax: 503-520-1225
Step-by-Step Procedures
1.
Fill a plastic or metal container with crushed ice and add clean water to a depth of at least 4
inches. Stir the ice and water for 2 to 3 minutes prior to performing calibration to ensure
the water is completely chilled. Make certain there is plenty of ice in the mixture and always
use clean water. Distilled water works well. The temperature of an ice bath is approximately
32°F (0°C).
2.
Insert the stainless steel shaft of the 317c into the ice bath making sure at least one inch of
the tip is immersed. Allow the reading on the thermometer to stabilize.
Note: The temperature reading must be within 23°F to 41°F (-5°C to 5°C) for calibration
to have effect.
3.
Press and hold the
D-H/CAL
button for approximately 8 seconds until "CAL" is displayed.
"CAL" will display for approximately 2 seconds and then the 317c will return to normal
operation. Calibration is complete.
Note: If the temperature reading was not within 23°F to 41°F (-5°C to 5°C) when step 3 was
performed no change in calibration occurred. The 31
7c
was designed with this feature to
prevent improper calibration.
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