B - Verification and Calibration

Front Panel Calibration

These procedures assume you understand how to operate front panel keys (see chapter 5).

Enable Calibration Mode

 

Action

Display

1.

Reset the unit by selecting Output, scrolling to *RST and pressing

*RST

 

Enter.

 

2.

Press Output On/Off to enable the output.

00.003V 0.0006A

3.

To begin calibration press Shift Cal, scroll to CAL ON and press

CAL ON 0.0

 

Enter.

 

4.Enter the calibration password from Entry keypad and press Enter.

 

lf the password is correct the Cal annunciator will come on.

CAL DENIED

 

If CAL DENIED appears, then an internal switch has been set to

 

prevent the calibration from being changed. (See the Service

OUT OF RANGE

 

Manual.)

 

lf the password is incorrect, an error occurs. If the active password is

 

 

lost, the calibration function can be recovered by setting an internal

 

 

switch that defeats password protection. (See the Service Manual.)

 

Voltage Programming and Measurement Calibration

 

 

Action

Display

5.

Connect the DMM (dc volts mode) directly to the dc source. Do not

 

 

connect the load resistor or current shunt.

 

6.

Press Shift Cal, scroll to CAL VOLT, and press Enter.

CAL:VOLT

7.

Press Shift Cal, scroll to CAL LEV, and press Enter to select the

CAL:LEV P1

 

first calibration point.

 

8.

Press Shift Cal, scroll to CAL DATA, and use the Entry keypad to

CAL:DATA 0.00

 

enter the voltage value displayed on the DMM.

 

9.

Press Shift Cal, scroll to CAL LEV, use ä to scroll to P2 (the

CAL:LEV P2

 

second calibration point), and press Enter.

 

10.

Press Shift Cal, scroll to CAL DATA, and use the Entry keypad to

CAL:DATA 0.00

 

enter the second voltage value displayed on the DMM.

 

Overvoltage Protection Calibration

 

 

Action

Display

11.

Press Shift Cal, scroll to CAL VOLT PROT, and press Enter.

CAL:VOLT:PROT

12.Wait for the dc source to compute the OVP calibration constant. The display returns to Meter mode when the calculation is complete.

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HP 6633B, 6632B, 6631B Front Panel Calibration, Enable Calibration Mode, Voltage Programming and Measurement Calibration

6631B, 6633B, 6634B, 6632B specifications

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