AMETEK SFA Series Ethernet Programming - Manual (Page 139)

SG Series Programming Calibration
M550129-03 Rev K 7-5
7.4 VOLTAGE PROGRAM 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 current to full scale to prevent Constant-
Current operation:
CAL:OUTP:CURR:DAC 65535
3. Program the output of the first calibration point to approximately
15% of full scale voltage by sending the following command string
from the computer:
CAL:OUTP:VOLT:DAC 9830
4. Let the output settle and measure the voltage with the meter.
5. Enter the actual voltage readback corresponding to the DAC value
9830 of the first calibration point:
CAL:OUTP:VOLT:POINT 1
CAL:MEAS:VOLT:POINT 1
6. Program the output of the second calibration point to
approximately 85% of full scale voltage by sending the following
command string from the computer:
CAL:OUTP:VOLT:DAC 55700
7. Let the output settle and measure the voltage with the meter.
8. Enter the actual voltage readback corresponding to the DAC value
5570 of the second calibration point:
CAL:OUTP:VOLT:POINT 2
CAL:MEAS:VOLT:POINT 2
9. Reset the output voltage to 0 volts.
CAL:OUTP:VOLT:DAC 0
10. Program the Digital Interface Adapter (DIA) to calculate the
voltage readback calibration gain and offset values:
CAL:OUTP:VOLT:CALC
CAL:MEAS:VOLT:CALC