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Agilent 4155B/4156B User’s Guide Vol.2, Edition 5 8-9
If You Have A Problem
When You Make A Measurement
If Measurement Takes More Time than Specified
When measuring current that is 10
m
A or less, SMUs may take longer time to
measure than the specified integration time. When measuring in a low current range,
the SMUs automatically take longer integration time to perform accurate and stable
measurements.
To solve this problem:
• Measure current using a fixed range that is more than 10
m
A. The measurement
will be performed in the specified integration time.
If you set many measurement channels, measurement takes a longer time.
To solve this problem:
• Decrease measurement channels to reduce measurement time.
Note that the number of measurement channels automatically increases if you do
both the following: force voltage from channels that are connected to R-Box and
display the voltage values or use voltage values in user functions. The channels
automatically measure current, which is used to compensate the voltage values.