KEPCO ABC-DM SERIES - Manual (Page 73)

ABC 040104
B-3
B.3
CALibrate:CURRent:LEVel
COMMAND
CAL:CURR:LEV
Syntax: Short Form: CAL:CURR:LEV {MIN | MAX} Long Form: CALibrate:CURRent:LEVel {MIN | MAX}
Description: Selects Current calibration, only effective with power supply in Calibrate status.
CAL:CURR:LEV MIN selects Current Zero Calibration. CAL:CURR:LEV MAX selects Current Full
Scale Calibration. Normally Current Zero is done first, then Current Full Scale Calibration. Related
Commands: CAL:STAT, CAL:PASS, CAL:VOLT, CAL:CURR, CAL:ZERO, CAL:SAVE. (See example,
Figure B-2.)
B.4
CALibrate:CURRent[:DATA]
COMMAND
CAL:CURR
Syntax: Short Form: CAL:CURR[:DATA] {0 | 1 | 2 | 3} Long Form: CALibrate:CURRent[:DATA] {0 | 1 | 2 | 3}
Description: Increases or decreases output current during calibration only. CAL:CURR[:DATA] 0 decreases
output current by small increment. CAL:CURR[:DATA] 1 increases output current by small increment.
CAL:CURR[:DATA] 2 decreases output current by large increment. CAL:CURR[:DATA] 3 increases
output current by large increment. This command is used during current calibration to adjust the out-
put current for current zero calibration as well as full scale current calibration. Output current is moni-
tored on a calibrated digital multimeter (reading voltage at the sense terminals of the shunt resistor)
and increased or decreased as required using this command.This command is only effective if Cali-
bration status and either Current Zero or Current Full Scale calibration are active. This command is
equivalent to the on the front panel left and right arrow keys for fine adjustment and the 1 and 3 keys
for coarse adjustment. Related Commands: CAL:STAT, CAL:PASS, CAL:VOLT, CAL:CURR,
CAL:ZERO, CAL:SAVE. (See example, Figure B-2.)
FIGURE B-2. USING CALIBRATION COMMANDS AND QUERIES
CAL:STAT ON,1234 Power supply enters Calibrate status.
CAL:STAT? Returns 1 indicating power supply in Calibrate status.
CAL:VOLT:LEV MIN Voltage Zero Calibration selected.
CAL:VOLT 1 Output voltage increased
CAL:VOLT:LEV MAX Voltage Full Scale Calibration selected, voltage zero values
stored in volatile memory
CAL:VOLT 0 Output voltage decreased.
CAL:ZERO Output voltage and current set to zero. Voltage maximum
and values established analog to digital conversion values
read calculations performed. Voltage and current output
set to zero.
--- * User disconnects shunt and connects DVM to output.
CAL:CURR:LEV MIN Current Zero Calibration selected.
CAL:CURR 1 Output current increased
CAL:CURR:LEV MAX Current Full Scale Calibration selected, current zero values
stored in volatile memory
CAL:CURR 0 Output current decreased.
CAL:SAVE Calibration values saved. current maximum values calculated
based on power supply settings an measurements. The
non-volatile current calibration constants are moved to
area of non-volatility memory reserved for previous
calibration data. New volatile constants are stored in
memory.
CAL:STAT 0 Power supply exits Calibrate mode.
CAL:STAT? Returns 0 indicating power supply not in Calibrate status