Storing The Adjustments - HP E1418A User Manual

Storing the
Adjustments
Note
Appendix D
CALibrationn:CONFigure:CURRent?
CALibrationn:VALue:CURRent? <value>
Once the calibration resistance value is set as described earlier, the general
procedure for each channel current output adjustment is:
1. Make the connections shown in Figure D-5 or D-6.
2. Send the CAL n :CONF:CURR?
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
query.
5. Enter the query response.
6. Repeat steps 3, 4, and 5 until the
returns a 0.
7. Repeat steps 1 through 6 for each channel.
The first query, CAL n :CONF:CURR?
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 CAL n :VAL:CURR? <
indicating the calibration state of the channel. A value other than 0 or 2
from this query indicates additional values are needed.
Each channel will require multiple iterations of the
value 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 -5 to +5 V and the last values output will be at or near 0 volts.
Once all adjustments have been made using the procedures outlined
previously, you can store the new calibration constants in non-volatile
memory by sending the following command:
/* Store the new constants */
CALibration:STORe
This command will generate an error if the Cal Store Enable Jumper is not
set to the CAL position (see page 159).
The HP E1418A will be busy storing the new calibration constants following
the CAL:STORe command. You should not perform any bus resets or module
query to the module and read the
CAL n :VAL:CURR? <
n
CAL :VAL:CURR? <
, sets the channel to the calibration
value > query. This query returns an integer
Voltage/Current Output Adjustment
value >
value query
>
n
CAL :VAL:CURR?
165