Calibration Testing; Calibration Key Procedure; Model 9600 Procedure - Welch Allyn SureTemp 670 Technical Manual

Welch Allyn, Inc.

CALIBRATION TESTING

Calibration Key Procedure

Extract the probe and disconnect it from the thermometer. Set the Normal/Monitor switch to the Monitor
position and set the F/C switch to the F position. Insert the Calibration Key into the probe connector
receptacle on the thermometer. Insert a probe shaft into the probe storage channel and remove it to initiate
a temperature taking cycle. Wait for the display test and then observe the display. The display must read
between 97.1 F and 97.5 F inclusive for the calibration of the instrument to be correct. Remove the
Calibration Key and reinstall the probe connector plug. Then install the probe into the probe storage
channel. (This will initiate the probe self test.)
Note: This Cal Key test does not test the calibration of the probe. To do so requires the use of the Welch
Allyn Model 9600 Calibration Tester.
If the reading from the Cal Key is not within the specified range or you are having other problems with the
use of the Cal Key, refer to the Cal Key Problems section of the Troubleshooting section on page 22.

Model 9600 Procedure

The Model 9600 Calibration Tester provides a convenient means of testing the entire thermometer system
(instrument and probe). The 9600 must be warmed up and stable at one of the two available temperature
settings. The thermistor based instrument under test must be in Monitor mode and no probe cover loaded.
The probe is inserted into the small hole in the dry heat well of the 9600 and allowed to settle for a minimum
of 2 minutes to the final temperature. The reading on the thermometer must be within the range specified on
the 9600. Refer to the Model 9600 Operation Manual for complete instructions.
Note: All Welch Allyn and Diatek thermometers (thermistor and infrared ear thermometers can be checked
in the Model 9600.)
If you are having problems with the use of the Model 9600, refer to the Troubleshooting section in the Model
9600 Operation Manual.
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12 SureTemp Model 670/SureTemp 4 Model 675