Posted Thu, 28 Sep 2023 22:21:45 GMT by Huang, Siyuan
I am using Kiethley 4200SCS for transfer curve measurement with the sweeping mode.  

As for ITM Timing, here are the index:
Speed: Normal; Delay Factor 1; FIlter Factor 1; A/D Aperture Time: Auto PLCs
Both the Sweep Delay and the Hold Time is 0

I am wondering what is the MT(measure time) for my measurement: 
For my case, I sweep V from 0-0.3 V with 1mV step

From this file (P17, Sweep Mode Timing Diagram): https://nanohub.org/resources/10435/download/2010.11.10-L04-Keithley.pdf;

I am wondering what's the default delay for my case, how long is the measure time and what happens within the measurement time (How long is the averaging time to generate a data point)
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Posted Fri, 29 Sep 2023 16:52:59 GMT by Walter, Mark
The measurement time is dependent on the SPEED setting. Your setting is Normal, which equates to 1 NPLC. What that means is that your measurement is integrated over 1 power line cycle period. Your power line frequency is 60hz, so 1/60=16.667mSec is your integration/measurement time. FAST is 30% faster and QUIET is 30% slower. CUSTOM allows you to select any integration rate. Keep in mind that measurement time is a trade-off between speed and accuracy. If you go faster than NORMAL, you will see more noise(at 60hz), If you turn on ENABLE TIMESTAMPS, you will see the total time for each measurement in the data sheet. The total time is source setting overhead + user added delay + measurement time.The source setting overhead will vary by range. Lower ranges will take longer to settle.

Mark Walter
Midwest Field Apps Engineer

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