Fluke 35040 - Manual (Page 79)

Appendix
New Features
B
B-3
1.000 μA 0.001
μA
1
Average Current Measurements
Range and Resolution:
Full Scale Range Display Resolution
200.00 pA 0.01 pA
2.0000 nA 0.0001 nA
20.000 nA 0.001 nA
200.00 nA 0.01 nA
1.0000 μA 0.0001
μA
Effective Exposure Time Measurements
Range and Resolution:
Full Scale Range
Seconds Hours/Minutes/Seconds
Display Resolution
59.99 s 59.99 s 0.01 s
19,999.9 s 5 h 33 min 19.9 s 0.1 s
Measurement Method: The effective exposure time value is calculated as the quotient of the charge and
average current measurement values. A minimum exposure duration of 3.5 seconds is required to
produce an effective exposure time measurement value.
B.3 SETUP
B.3.1 Making Non-Timed Exposure Measurements
With Automatic Leakage Compensation Disabled
The instrument must be manually reset before each exposure when automatic leakage compensation is
disabled.
Procedure
• Hold RESET/MEASURE for one second just before making the exposure to reset the instrument.
Note that the instrument displays the “Rst” annunciator while the hardware is being reset.
• Wait for the reset to complete.
• Make the exposure.
The exposure measurements will be displayed but may drift due to leakage. Repeat this sequence for
every exposure.
With Automatic Leakage Compensation Enabled
In addition to compensating measurements for leakage, the instrument holds the exposure
measurements and automatically resets after each exposure when automatic leakage compensation is
enabled.