4-12
PERFORMANCE VERIFICATION PROCEDURE
Procedure/roq
uirem^nts
:
A Turn off the signal sources connected to the ScopeMeler input or minimize
(zero) the signal amplitudes.
B Use the select/adjust keys to switch from front setting
number
21
to number
22 and back to 21.
C Verify that
the
trace
does not jump more than 0.1 divisions while switching
between front settings 21 and 22.
While in the SERVICE menu, press the
METER softkey to enter the METER part of the
Perfomiance Verification Procedure.
1. Voltage accuracy METER
mode
The lollowir^ section checks the voltage accuracy In METER mode. The
ScopeMeter
uses the same input circuitry (hardware) for the SCOPE (channel A)
and
the
METER modes (In these attenuator settings). When the voltage accuracy
of the METER
1$ checked, the deflection coefficients for SCOPE channel A are
also tested.
Test equipment:
Fluke 51 OOB Calibrator
Test setup:
SeopeMeWf
Procedure:
A Apply 300 mV DC to channel A.
B Change the input voltage and the setting
of
channel
A according to t^le 4.3 and check that the
amplitude of the signal
agrees
with
the value listed.
NOTE: TheScop&M^teris
s&t to METER "AUTORANGE^ (st&p
1)
w/th a dual (AC and DC) readout.
This implies
that
the
ScopeMeter range is set automaiicaHy according to the input signal.
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