AMETEK SFA Series Ethernet Programming - Manual (Page 143)

SG Series Programming Calibration
M550129-03 Rev K 7-9
23. Program the supply to lock the non-volatile memory for calibration value
protection:
CAL:LOCK
7.7 CURRENT PROGRAMING GAIN/OFFSET AND
MEASUREMENT READBACK CALIBRATION
(ETHERNET, GPIB)
NOTE: This calibration procedure is required in order to use Constant
Power Mode programming.
STEP DESCRIPTION
1. Program the overvoltage protection to maximum to prevent nuisance trips:
CAL:OUTP:VOLT:PROT:DAC 65535
2. Program the output voltage to full scale to prevent Constant-Voltage
operation:
CAL:OUTP:VOLT: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 9830
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:OUTP:CURR:POINT 1
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:OUTP:CURR:POINT 2
CAL:MEAS:CURR:POINT 2