Verification and Calibration - B

Table B-2. Verification Programming Values

 

Full scale Voltage

Full Scale Current

Imax

Isink

6631B

8

10

10.238

- 10 A

6632B/66332A

20

5

5.1188

- 5 A

6633B

50

2

2.0475

- 2 A

6634B

100

1

1.0238

- 1 A

Turn-On Checkout

Perform the Turn-On Checkout as directed in chapter 4.

NOTE: The dc source must pass turn-on selftest before you can proceed with the verification tests.

Voltage Programming and Measurement Accuracy

This test verifies the voltage programming, HP-IB measurement, and front panel meter functions. Values read back over the HP-IB should be the same as those displayed on the front panel. Measure the dc output voltage at the output terminals. Make sure the output mode switch is set to Normal and the sense terminals are directly jumpered to the output terminals.

Action

Normal Result

1.Turn off the dc source and connect a DMM to the output terminals.

2.Turn on the dc source with no load on the output. Set the output voltage to 0 V and the output current to full scale (see table B-2). Press Output On/Off to enable the output.

Output voltage near 0 V. Output current near 0 A.

3.

Record voltage readings at the DMM and on the front panel

Readings within low voltage

 

display in the appropriate table.

limits (see table B-3, 4, 5, or 6).

4.

Set the output voltage to the full scale rated voltage

Output voltage near full scale.

 

(see Table B-2).

 

5.

Record voltage readings at the DMM and on the front panel

Readings within high voltage

 

display in the table.

limits (see table B-3, 4, 5, or 6).

Current Programming and Measurement Accuracy

This test verifies the current programming and measurement. Connect the appropriate current monitor (see table B-1) as shown in figure B-1A.

Current Programming and Measurement (High Range)

Action

Normal Result

1.Turn off the dc source and connect the DMM and current monitor as shown in figure B-1A.

2. Turn on the dc source, access the Input menu, and set the current

CURR:DET DC

sense detector to DC.

 

3.Set the output voltage to 5 V and the current to 0 A. Press Output On/Off to enable the output.

Output current near 0 A.

4.

Divide the voltage drop across the current monitor by its

Readings within low current

 

resistance to convert the value to amperes. Record the value.

limits (see table B-3, 4, 5, or 6).

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