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Frequency Accuracy
This test verifies the frequency programming and measurement accuracy of the output voltage
waveform.
Step Action
1
Turn off the UUT. Connect the Frequency Counter to the output as
shown above.
2
Turn on the UUT. Program output to RANGE 155 V,VOLT 20, FREQ 500
3
Record the output frequency reading from counter
DC Voltage Programming and Readback Accuracy
This test verifies the DC voltage programming and front panel readback functions are within
specifications.
Step Action
1
Turn off the UUT. Connect the DMM directly to the output terminals. The DMM
negative lead is connected to the Neutral output terminal.
2
Turn on UUT. Program output to RANGE 155 V, VOLT 0, OUTP:COUP DC,
OFFSET 219
3
Record DC voltage at DMM and readback from front panel display.
4
Program output to RANGE 310 V, VOLT 0, OUTP:COUP DC, OFFSET 438
5
Record DC voltage at DMM and readback from front panel display.
DC Current Measurement Accuracy
This test verifies that the DC voltage programming and front-panel readback functions are within
specifications.
Step Action
1
Turn off the UUT and connect the appropriate load resistor, DC current shunt
and DMM as shown in the diagram above.
2
Turn on UUT. Program output voltage to RANGE 155 V, VOLT 0, OUTP:COUP
DC, OFFSET 64.
3
Record DVM reading and calculate current.
Keysight AC6800B Series Operating and Service Guide
4 Calibration, Verification, and Service
Normal Result
Output at 80 Vrms, CV annunciator on, Current
near 0
Readings are within specified limits
Normal Result
Output at 219 VDC, output current near 0
Readings within specified DC voltage pro-
gramming and readback limits.
Output at 438 VDC, output current near 0
Readings within specified DC voltage pro-
gramming and readback limits.
Normal Result
Output voltage at 64 VDC, CV annunciator
on, output current near:
4 A for AC6801B
8 A for AC6802B
16 A for AC6803B
32 A for AC6804B
Readings within specified DC current read-
back limits.
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