AMETEK ReFlex - Manual (Page 330)

ReFlex Power™ Active Loads
M380056-01 Rev J 7-55
7.6.19
LPAL C
AL
P
OT
C
ALIBRATION
This procedure calibrates cal-pot. This calibration is done with the DC
current meter connected between the DC power supply and the Active
Load.
This procedure requires maximum voltage 4.5V and maximum current
15Amps.
1. Connect the shunt between the DC power supply and the active
load. Connect the DC current meter across the shunt.
2. Issue clear and reset commands:
*CLS
*RST
3. Set the DC power supply to 4.5 Volts
4. This begins the CalPots calibration sequence. The Load will be set
to STATE 1; relays closed and set to 0 current, the 0 current offset
value will be calculated.
CAL:CALPOTS:GAIN:START
5. Program to draw maximum current
CAL:INP:CURR:COUNTS 0xFFFF
6. Adjust the current limit on the DC Power supply to just under the
limit 13.7 Amps. Use the Current Shunt and Voltmeter to adjust and
measure the current. When the current reading is stable, enter the
current using following command
CAL:CALPOTS:GAIN:CURR