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 mA 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 mA. 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.
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