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Active Loads
HPAL H
7.6.5
This procedure calibrates the input current for current range high. This is a 5-
point calibration. Make sure that shunt and the DC current meter are connected
between the active load and DC power supply.
This procedure requires maximum voltage 5.0V and maximum current 30Amps.
1. Set the DC input voltage to 5 Volts.
2. Turn on the active load:
3. Set the DAC count to 5% of its full range:
4. Wait for the DC current to stabilize. After the current reading is stabilized,
5. Set the DAC count to 27.5% of its full range:
6. Wait for the DC current to stabilize. After the current reading is stabilized,
7. Set the DAC count to 50.0% of its full range:
8. Wait for the DC current to stabilize. After the current reading is stabilized,
9. Set the DAC count to 72.5% of its full range:
10. Wait for the DC current to stabilize. After the current reading is stabilized,
11. Set the DAC count to 95% of its full range
7-34
R
C
IGH
ANGE
URRENT
INP<n>:STATE 1
CAL<n>:INP:CURR:COUNTS 5700
enter the current using following command:
CAL<n>:INP:CURR:FIVEPOINT1 <value-1>
CAL<n>:INP:CURR:COUNTS 16000
enter the current using following command:
CAL<n>:INP:CURR:FIVEPOINT2 <value-2>
CAL<n>:INP:CURR:COUNTS 32000
enter the current using following command:
CAL<n>:INP:CURR:FIVEPOINT3 <value-3>
CAL<n>:INP:CURR:COUNTS 43000
enter the current using following command:
CAL<n>:INP:CURR:FIVEPOINT4 <value-4>
CAL<n>:INP:CURR:COUNTS 56000
C
ALIBRATION
ReFlex Power™
M380056-01 Rev L
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