24
Power Analyzer Voltage Measurement Accuracy
This test verifies the accuracy of the Power Analyzer voltage measurements. The Phase 2 annunciator on
the left side of the display, must be on for the front panel to display Power Analyzer input measurements.
Figure B-1A shows the setup. Measure the ac output voltage directly at the output terminals.
Action Normal Result
1. Make sure the ac source is turned off. Connect the DVM to the output
terminals the ac source. Connect the Power Analyzer voltage sense terminals
(V SENSE) to the Main Output terminals of the ac source (see figure B-1A).
2. Turn on the ac source with no load. In the Output menu, execute the *RST
command to reset the unit to its factory default state.
*RST
3. If the Phase 2 annunciator does not appear on the right side of the display,
press the Phase Select key.
φ
2
0 V 60 Hz
4. Program the output voltage to 150 volts and set the output current limit to its
maximum value.
CV annunciator on.
5.
Enable the output by pressing Output On/Off.
Output voltage near 150 V.
6. Record voltage readings at the DVM and on the front panel display.
φ
2 front panel reading within
145 mV of DVM reading .
7. Program the output voltage to 300 volts. Output voltage near 300 V.
8. Record voltage readings at the DVM and on the front panel display.
φ
2 front panel reading within
190 mV of DVM reading
Power Analyzer Current Measurement Accuracy
This test verifies the accuracy of the Power Analyzer current measurements. The Phase 2 annunciator on
the left side of the display, must be on for the front panel to display Power Analyzer input measurements.
Figure B-1A shows the setup. Use the Agilent supplied current shunt. It has the accuracy specified in
table B-1. Use wire of sufficient size to carry the maximum rated current of the ac source.
NOTE: Check to make sure that the internal shunt value in the ac source matches the value
written on the external current shunt. Refer to "Check the Shunt Value Setting".
Action Normal Result
1. Turn off the ac source. Connect the 30 ohm load resistor, current shunt,
and the DVM across the current shunt. Connect the Power Analyzer
current terminals (I SENSE) to the output of the function generator (see
figure B-1A).
2. Turn on the ac source. In the Output menu, execute the *RST command to
reset the unit to its factory default state.
*RST
3. If the Phase 2 annunciator does not appear on the right side of the display,
press the Phase Select key.
φ
2
0 V 60 Hz
4. Program the output voltage to 100 volts and set the current limit to 3
amperes. Enable the output by pressing Output On/Off.
CC annunciator on.
Output current near 3 amperes
5. Record the DVM voltage reading and calculate the rms current. Divide the
DVM reading by the current monitor resistor value. Record the front panel
reading.
φ2 front panel reading within
11.5 mA of measured output
current.
