Front-Panel Operation
Set Output 4
4-23
Set DC Current Output
Do the subsequent procedure to set a dc current output between AUX HI and LO or AUX
20A and LO. Choose the inputs for the current level selected. Current larger than ±3 A is
sourced between the AUX 20A and LO terminals. If you make an entry error, push
to clear the display, and then record the value again.
Note
See the “Specifications” section in Chapter 1 for a chart that shows
duration or duty-cycle limits for current larger than 11 A. If the Calibrator
goes above the duration or duty cycle, the Calibrator will turn off. After a
cool-off period, the Calibrator changes to usual operation.
1. Push to clear output from the Calibrator.
2. Connect the UUT as in the “Connect the Calibrator to a UUT” section of this chapter.
3. Set the UUT to measure dc current on the necessary range.
4. Push the numeric keys and decimal point key to record the necessary current output
(maximum six numeric keys). For example, 234.567.
5. Push to select the polarity of the current (default is +).
6. Push a multiplier key, if necessary. For example, .
7. Push .
8. The Control Display shows the amplitude of the entry. For example, 234.567 mA.
nn077f.eps
9. Push . The Calibrator removes the entry from the Control Display and copies
it into the Output Display (below is typical).
nn078f.eps
10. Push to start the Calibrator output.
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