AMETEK ReFlex - Manual (Page 328)

ReFlex Power™ Active Loads
M380056-01 Rev J 7-53
7.6.18
HPAL IAI B
OARD
C
ALIBRATION
This procedure calibrates the IAI Board for High Power Active Load.
This procedure requires maximum voltage 5.0 V and maximum current 30
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 5V (First power Supply connected to the
Input.)
4. Turn the active load unit
INP:STATE 1
5. Set the mode of the active load to external input mode or IAI mode
Wait for a some seconds 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 0Volts.
CAL:INP:VOLT1