Performance Tests and Calibration
4
34405A User’s and Service Guide
93
6
Enter the actual applied input (see
“Entering Adjustment Values”
on
page 86).
7
Press
to start the adjustment. The
CAL
annunciator flashes to
indicate the calibration is in progress.
•
Successful completion of each adjustment value is indicated by a
short beep and the primary display briefly showing
PASS
.
•
An adjustment failure is indicated by a long beep, the primary
display showing
FAiL
and a calibration error number appearing in
the secondary display. Check the input value, range, function, and
entered adjustment value to correct the problem and repeat the
adjustment step.
8
Repeat steps 3 through 7 for each gain adjustment point shown in the
table.
9
Verify the DC Current Gain adjustments using the
“DC Current Gain
Verification Test”
on page 74.
N O T E
Always complete tests in the same order as shown in the appropriate table.
Table 16
DC Current Gain Adjustment
Input Function
Cal
Item
Remove test leads from Input terminals
DC Current
Open
10 mA
10 mA
100 mA
100 mA
1000 mA
1000 mA
Caution: Connect calibrator to multimeter’s 12A and LO terminals before applying 10A
10 A
10 A
Disp
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