Ametek Elgar ReFlex Power Operation Manual page 136

ReFlex Power™
14. Program to DAC to 0.5% above the middle range
15. Wait for the DC voltmeter to stabilize. Make an accurate measurement and then
enter the DC voltage using following command
16. Perform the DAC Calibration
17. Measure the DC output voltage, if the voltage is not 0.0 ± 10mVolts, read the
DAC offset value with CAL<n>:OUTP:DAC:OFFSET?, and then using the value
returned (a Hex number) as a starting point, "walk" the DC voltage toward 0.0
volts by increasing the value if the DC value is negative, and decreasing the
value if it is positive. One count is ≈ 10mVolts. The command to change the
DAC offset value is CAL<n>:OUTP:DAC:OFFSET <value>.
18. Turn the DC correction loop back on
19. Turn off the unit
20. Send the system error query command to make sure calibration was successful.
21. If there is no error returned at the system error query command then save the
calibration result with the following command
22. Reset the unit
M380056-01 Rev L
CAL<n>:OUTP:DAC:COUNTS 33080
CAL<n>:OUTP:DAC:POINT2 <value-2>
CAL<n>:OUTP:DAC:OFFSET:CALC
CAL<n>:OUTP:DCLOOP ON
OUTP<n>:STATE 0
SYST:ERR?
CAL<n>:UNLOCK "6867"
CAL<n>:STORE
CAL<n>:LOCK
*RST<n>
AC Power Supplies
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