Fluke 1535 - Page 15

Insulation Tester
Calibration Procedure
11
To do the calibration:
1. Turn on the meter.
2. To check the connection, use the PC and serial communication software to enter these commands:
3. To calibrate the Current function, use the PC and serial communication software to enter these commands:
Command Operation / Purpose Response
id Check the connection and unit ID The ID information of UUT
Command Operation / Purpose Response
Connect the current source between E and G
cal start_current Enter Current calibration mode “cal start_current”
irs 4 Enter 200 nA range “irs”
Current source outputs -1 nA
adc i r Read the Current analog-to-digital conversion value ADC_READ “current_adc”
cal_param current 0
-0.001 ADC_READ
Write the calibration parameter 0, use read value
ADC_READ in the previous step
“current param”
Current source outputs -5 nA
adc i r Read the Current analog-to-digital conversion value ADC_READ “current_adc”
cal_param current 1
-0.005 ADC_READ
Write the calibration parameter 1, use read value
ADC_READ in the previous step
“current param”
Current source outputs -50 nA
adc i r Read the Current analog-to-digital conversion value ADC_READ “current_adc”
cal_param current 2
-0.05 ADC_READ
Write the calibration parameter 2, use read value
ADC_READ in the previous step
“current param”
Current source outputs -150 nA
adc i r Read the Current analog-to-digital conversion value ADC_READ “current_adc”
cal_param current 3
-0.15 ADC_READ
Write the calibration parameter 3, use read value
ADC_READ in the previous step
“current param”
irs 3 Enter 2 μA range “irs”
Current source outputs -250 nA
adc i r Read the Current analog-to-digital conversion value ADC_READ “current_adc”
cal_param current 4
-0.25 ADC_READ
Write the calibration parameter 4, use read value
ADC_READ in the previous step
“current param”
Current source outputs -1.5 μA
adc i r Read the Current analog-to-digital conversion value ADC_READ “current_adc”
cal_param current 5
-1.5 ADC_READ
Write the calibration parameter 5, use read value
ADC_READ in the previous step
“current param”
irs 2 Enter 20 μA range “irs”
Current source outputs -2.5 μA
adc i r Read the Current analog-to-digital conversion value ADC_READ “current_adc”
cal_param current 6
-2.5 ADC_READ
Write the calibration parameter 6, use read value
ADC_READ in the previous step
“current param”
Current source outputs -19 μA