Tektronix DCM300, Technical Reference

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DCM910 Performance Verification
Handheld and Benchtop Instruments Basic Service
5
Performance Verification
This section contains procedures to verify that the DCM910 Digital Clamp
Meter performs as warranted. If an instrument fails any of the checks, it needs
adjustment and or repair.
The performance verification procedures provide a valid confirmation of
instrument electrical characteristics and function under the following conditions:
H
The instrument operates in an 18
_
to 28
_
C (64
_
to 82
_
F) ambient
environment with a relative humidity of less than 75%.
H
The instrument warms up in the ambient environment for at least one hour.
H
The instrument remains fully assembled (do not remove the bottom cover).
The DCM910 performance verification consists of the checks listed in Table 5.
Table 5: Performance Verification Checks
AC Current Check
DC Current Check
Frequency Check
Test Equipment
The performance verification procedures use external traceable test equipment to
directly check warranted characteristics. 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
performance verification procedures.
NOTE
. Before beginning the performance verification procedures, warm up the
test equipment according to the manufacturer’s recommendations.