AMETEK ReFlex - Manual (Page 270)

ReFlex Power™ DC Power Supplies
M380056-01 Rev K 6-67
Figure 6-23. Calibration Instrumentation Setup
6.6.4
OUTPUT VOLTAGE PARAMETER CALIBRATION
The following procedure calibrates parameters associated with the output voltage:
programming voltage (remote sense), readback voltage, overvoltage protection (OVP),
undervoltage protection (UVP), and readback of local voltage (internally sensed).
Voltage calibration is made with remote sensing, and with external sense leads
connected to the front panel output terminals. Voltage measurements with the external
voltmeter are made at the front panel output terminals, at the same points where the
sense leads are connected.
1. Connect a voltmeter across the output terminals. Ensure that no load is
connected to the output.
2. Issue clear and reset commands:
*CLS[n]
*RST[n]
3. Set the OVP supervisory to non-tracking and at maximum range:
CAL[n]:OUTP:VOLT:PROT:COUNTS 4095
4. Turn on the output:
OUTP[n]:ISOL on
OUTP[n]:SENS on
OUTP[n]:STAT on
5. Set the output current to full-scale:
CAL[n]:OUTP:CURR:COUNTS 32768
6. Program the output voltage to the first value near 5% of full-scale,
(count = 48852*0.05+768 = 3210):
CAL[n]:OUTP:VOLT:COUNTS 3210
7. Measure the output voltage with the external voltmeter. Enter this as value-1 with
the following command:
CAL[n]:OUTP:VOLT:FIVEPOINT 1
8. Program the output voltage to the second value near 27.5% of full-scale,
(count = 48852*0.275+768 = 14202):