Verification Procedure. Agilent Technologies 6811B, 6813B, 6812B, 5964-8134

Verification Procedure

The following verification procedures assume you understand how to operate the ac source from the front panel as explained in chapter 4.

Perform the following tests for operation verification in the order indicated.

1. Turn-On Checkout

2. Voltage Measurement Accuracy

3. Current Measurement Accuracy

NOTE:

Test Set up

The ac source must pass turn-on selftest before you can proceed with the verification.

Agilent 6811B/6812B/6813B

LO HI | LO HI

I

SENSE

V

SENSE

POWER ANALYZER

HI

Agilent 3458A

DMM 01

MAIN OUTPUT

SENSE

01 COM COM

LO

Rs R

L

Rs = Current Monitor resistor (0.01 ohms)

A.

Agilent 3458A

HI

DMM

LO

Agilent 33120A

FUNCTION GENERATOR

Agilent 6811B/6812B/6813B

LO HI | LO HI

I

SENSE

V

SENSE

POWER ANALYZER

Agilent 3458A

DMM

HI

LO

C1

01

MAIN OUTPUT

SENSE

01 COM COM

B.

C1 = Capacitor (1.0 uF)

Figure B-1. Verification / Calibration Test Setup

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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.

3.

If the Phase 2 annunciator does not appear on the right side of the display, press the Phase Select key.

4.

Program the output voltage to 150 volts and set the output current limit to its maximum value.

5.

Enable the output by pressing Output On/Off .

6.

Record voltage readings at the DVM and on the front panel display.

7.

Program the output voltage to 300 volts.

8.

Record voltage readings at the DVM and on the front panel display.

*RST

φ

2 0 V 60 Hz

CV annunciator on.

Output voltage near 150 V.

φ

2 front panel reading within

145 mV of DVM reading .

Output voltage near 300 V.

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".

Normal Result Action

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.

3.

If the Phase 2 annunciator does not appear on the right side of the display, press the Phase Select key.

4.

Program the output voltage to 100 volts and set the current limit to 3 amperes. Enable the output by pressing Output On/Off .

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.

*RST

φ

2 0 V 60 Hz

CC annunciator on.

Output current near 3 amperes

φ

2 front panel reading within

11.5 mA of measured output current.

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