Voltage Adjustment Voltage output adjustment uses two of the CALibration subsystem queries.

CALibrationn:CONFigure:VOLTage?

CALibrationn:VALue:VOLTage?

The general procedure for channel voltage adjustment is:

1.Make the connections shown in Figure D-2 or D-3.

2.Send the CALibrationn:CONFigure:VOLTage? query to the module and read the response until a 1 is returned (typically the first query response).

3.Read the voltage output on the DMM.

4.Send the DMM value read with the CALibrationn:VALue:VOLTage? query.

5.Enter the query response.

6.Repeat steps 3, 4, and 5 until the CALibrationn:VALue:VOLTage? query returns a 0.

7.Repeat steps 1 through 6 for each channel.

The first query, CALibrationn:CONFigure:VOLTage?, sets the channel to the calibration mode and returns a 1 when the channel is ready for calibration. When a 1 is returned, the channel output voltage is set to the first adjustment point.

Read the output voltage on the DMM and return the value obtained using the CALibrationn:VALue:VOLTage? query. This query returns an integer indicating the calibration state of the channel. Any non-zero return from this query indicates additional values are needed.

Each channel will require multiple iterations of the

CALibrationn:VALue:VOLTage? query. A minimum of 9 queries, to a maximum of 50 queries, will be required at each channel. During the process, the output voltage will range from +16 V to -16 V and the last values output will be at or near 0 volts.

157 Voltage/Current Output Adjustment

Appendix D