Ametek Elgar ReFlex Power, Operation Manual

Page: 155 / 359

AC Power Supplies ReFlex Power™
4-70 M380056-01 Rev L
4.6.19
C
URRENT
C
ALIBRATION FOR
V
OLTAGE
R
ANGE
H
IGH
This procedure calibrates the output current of the power supply. This is five-
point calibration procedure.
1. Close the switch between the power supply and the resistive load.
2. Connect the meter between the output and adjustable resistive load.
3. Set the voltmeter to read the AC current.
4. Ensure that load is connected to the output. Load setting should select range for 0
to 5Amps at 50Volts AC.
5. Issue clear and reset commands:
*CLS
*RST<n>
6. Set the voltage range of the power supply to high:
SOUR<n>:VOLT:RANGE 1
7. Set the OVP supervisory to limit 20261:
CAL<n>:OUTP:VOLT:PROT:COUNTS 20261
8. Set the OCP supervisory to maximum limit:
CAL<n>:OUTP:CURR:PROT:COUNTS 4800
9. Turn the unit on:
OUTP<n>:STATE 1
10. Set the output voltage to 50 Volts:
SOUR<n>:VOLT 50
11. Program the output current to 5% of the full scale current:
CAL<n>:OUTP:CURR:COUNTS 228
12. Wait for AC current to stabilize. Measure the output current using the AC meter.
Enter the measured current:
CAL<n>:OUTP:CURR:FIVEPOINT1 <value-1>
13. Program the output current to 27.5% of the full scale current:
CAL<n>:OUTP:CURR:COUNTS 1252