Handheld Instruments Basic Service
35
DMM800 Series Adjustment Procedures
This section contains procedures to adjust DMM830, DMM850, and DMM870
multimeters. Perform these procedures once a year or if the DMM800 Series
Performance Verification procedure indicates the need for calibration.
In this section you will find the following information:
A list of adjustments
A list of test equipment needed to make the adjustments
Instructions on how to prepare the instrument for adjustment
Step-by-step adjustment procedures
The procedures in this section do not verify performance. To confirm that your
multimeter meets factory specifications, perform the procedures in the DMM800
Series Performance Verification section.
List of Adjustments
Use the adjustments listed in Table 9 to return DMM800 Series multimeters to
factory calibration.
Table 9: DMM800 series adjustments
Adjustments P art 1
DC Volts
AC Volts
C apacitance
Temperature (DM M850 and DM M870)
DC Milliamperes
DC Amperes
Adjustments P art 2
AC R esponse
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