Appendix
New Features B
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 |
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20.000 nA | 0.001 nA |
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200.00 nA | 0.01 nA |
|
|
1.0000 μA | 0.0001 μA |
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|
Effective Exposure Time Measurements
Range and Resolution:
| Full Scale Range | Display Resolution | |
|
|
| |
Seconds |
| Hours/Minutes/Seconds | |
|
| ||
|
|
|
|
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.
