AMETEK ReFlex - Manual (Page 357)

Active Loads ReFlex Power™
7-82 M380056-01 Rev J
7.6.32 LPAL IAI BOARD CALIBRATION
This procedure calibrates the IAI Board.
This procedure requires maximum input voltage 5.0 V and maximum input
current 15.0 Amps.
Power supply connected to IAI board needs voltage rating of 0 to 10.0 V
1. Connect the shunt and the DC current meter between the active
load and DC power supply.
2. Connect the second power supply to the IAI board. Also connect a
DC voltmeter to the IAI board input.
3. Set the input voltage to 5 V (First power Supply connected to the
Input).
4. Turn the active load unit on:
INP:STATE 1
5. Set the mode of the active load to external input mode or IAI mode,
and wait for a 1/2 second for unit to make transition:
INP:CURRent:EXTernal 1
6. Set the second power supply (Power supply connected to IAI Board)
to 0 Volts.
7. After the DMM voltage stabilizes, enter the voltage of the DMM
(Connected to second power supply or Power supply connected to
IAI Board). Use 0.0051 instead of .0051 to enter the voltage.
Note: This voltage should be equal to 0 Volts.
CAL:INP:VOLT1