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2
Service
130
Keysight 53210A/53220A/53230A Assembly Level Service Guide
8
Press the
Pos Volt
softkey. Softkeys change to:
– Data entry display area reads
4.096 V (default)
and is modifiable
.
9
The value shown in the data entry area must equal the power supply output
voltage as measured by the DMM (+4.096 or +4.000). Use the front panel knob
and left/right arrow keys to enter the value (
±
1mV).
10
Connect the DC voltage source to Channel 1 on the counter front panel as
shown in
Figure 2-6
DC voltage source and DMM connections
11
Press the
Perform Cal Step
softkey.
– If the calibration step PASSES, after a few seconds the counter momentarily
displays:
– “
Calibration step succeeded.
”
– The
Cal Count
on the screen will increment.
DC
Voltage
Source
DMM
BNC
“ T ”