AMETEK SFA Series Programming Manual - Manual (Page 41)

Sorensen SF Series IEEE 488.2 and SCPI Command Operation
4. Let the output settle and measure the current with the current shunt and the meter.
5. Enter the actual current readback corresponding to the DAC value 9830 of the first
calibration point:
CAL:MEAS:CURR:POINT 1
6. Program the output of the second calibration point to approximately 85% of full scale
current by sending the following command string from the computer:
CAL:OUTP:CURR:DAC 55700
7. Let the output settle and measure the current with the current shunt and the meter.
8. Enter the actual current readback corresponding to the DAC value 55700 of the second
calibration point:
CAL:MEAS:CURR:POINT 2
9. Reset the output current to 0 amps.
CAL:OUTP:CURR:DAC 0
10. Program the DIA to calculate the current readback calibration gain and offset values:
CAL:MEAS:CURR:CALC
11. Program the DIA to unlock the non-volatile memory for calibration value storage:
CAL:UNLOCK “6867”
12. Program the DIA to store the calibration values in non-volatile memory:
CAL:STORE
13. Program the DIA to lock the non-volatile memory for calibration value protection
CAL:LOCK
14. The current readback calibration is complete. The unit may be turned OFF or other
calibration procedures may be performed.
4.6 Current Programming and Readback Calibration
This procedure may be used to save time if both the output and readback require calibration.
STEP DESCRIPTION
1. Program the overcurrent protection to maximum to prevent nuisance trips:
CAL:OUTP:CURR:PROT:DAC 65535
3. Program the output of the first calibration point to approximately 15% of full scale current
by sending the following command string from the computer:
CAL:OUTP:CURR:DAC 7830
M550292-03 (Programming) 4-5