4 -
The test in this section checks for output voltage and current on the dc source.
NOTE: To perform the checkout procedure, you will need a wire for shorting the output terminals together.
The following procedure assumes that the unit turns on in the
If you have not already done so, connect the power cord to the unit and plug it in.
TableModel | Voltage | OV Prot | Current | Note: |
6631B | 8 | 8.8 | 10 | This checkout procedure is written for |
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| models |
6632B/66332A | 20 | 22 | 5 | 6632B and 66332A. If you have another |
6633B | 50 | 55 | 2 | model, enter the correct values from the table |
6634B | 100 | 110 | 1 | Where the procedure calls for an <input>. |
| Procedure | Display | Explanation |
1. | Turn the unit on. The dc | ********** | During selftest, all display segments are briefly |
| source undergoes a self- |
| lit, followed by the |
| test when you first turn it |
| then goes into meter mode with the Dis |
| on. | ADDRESS 5 | annunciator on, and all others off. In Meter |
|
| 0.2410V .0006A | mode the *****V digits indicate the output |
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|
| voltage and the *****A digits indicate the |
output current. The flashing digit on the display indicates the digit that will be affected if changes are made to the displayed values using the rotary control or the ã and ä keys. You will only see the changes if the output is ON.
NOTE: Press the Meter key to exit a menu at any time and return to meter mode. If the Err annunciator on the display is on, press the Shift key followed by the Error key to see the error number. See table
2. | Check that the dc source |
| You should be able to hear the fan and feel the |
| fan is on |
| air coming from the back of the unit. |
3. | Press Voltage, | VOLT 0.000 | Programs the output to the selected voltage. |
| <2, 0>, Enter | VOLT <20> | After the value is entered, the display returns to |
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| Meter mode. Because the output has not been |
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|
| enabled, the meter still indicates 0 volts. |
4. | Press Output On/Off | <20.003V> | Turns the output on. The Dis annunciator should |
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| 0.0006A | be off and CV should be on. |
5. | Press Shift, OV | VOLT:PROT | Display shows the overvoltage protection trip |
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| <22.00> | voltage for your unit. |
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