Fluke 1535 Calibration Manual page 15

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