AMETEK ReFlex - Manual (Page 332)

ReFlex Power™ Active Loads
M380056-01 Rev J 7-57
7.6.20 C
URRENT
C
ALIBRATION FOR
LPAL
This procedure calibrates the current for the high range. This is 5-point
calibration. Make sure that the shunt and the DC current meter are
connected between the active load and DC power supply.
This procedure requires maximum voltage 5.0 V and maximum current 15.0
Amps.
1. Set the DC input voltage to 5 Volts
2. Turn on the active load
INP<n>:STATE 1
3. Set the DAC count to 5% of its full range
CAL<n>:INP:CURR:COUNTS 5700
4. Wait for the DC current to stabilize. After the current reading is
stabilized, enter the current using following command
CAL<n>:INP:CURR:FIVEPOINT1 <value-1>
5. Set the DAC count to 27.5% of its full range
CAL<n>:INP:CURR:COUNTS 16000
6. Wait for the DC current to stabilize. After the current reading is
stabilized, enter the current using following command
CAL<n>:INP:CURR:FIVEPOINT2 <value-2>