DTM900 and DTM920 Adjustment Procedures
10
Handheld and Benchtop Instruments Basic Service
Adjustment Procedures
This section contains procedures to adjust DTM900 and DTM920 thermometers.
If your thermometer fails a performance requirement, use these procedures to
return it to factory specifications.
In this section you will find the following information:
H A list of adjustments
H A list of test equipment needed to make the adjustments
H Instructions on how to prepare the instrument for adjustment
H Step-by-step adjustment procedures
The procedures in this section do not verify performance. To confirm that your
thermometer meets factory specifications, implement the procedures in the
Performance Verification section.
List of Adjustments
Use the adjustments listed in Table 5 to return DTM900 and DTM920 thermom-
eters to factory calibration.
Table 5: DTM900 and DTM920 Adjustments
DTM900 Adjustment Procedure
DTM920 Adjustment Procedure
2000 mV Calibration
Gain Calibration
0_ C Calibration
Test Equipment
To ensure accurate adjustments, use the following or equivalent test equipment.
If you substitute equipment, always choose instruments that meet or exceed the
minimum requirements specified in Table 6.
Alternative test equipment must meet or exceed the intended minimum
requirements. If you substitute equipment, you may need to modify the
adjustment procedures.