How do I change the data logging interval for Series 2280?

Hello Keithley,<br> <br> I am using the Keithley Series 2280 to record the current variation for 7 days.<br> I'd like to extract data from the buffer using a USB flash drive.<br> However, the buffer storage interval (1 sec) is too short for my needs.<br> Are there any ways to increase the storage interval to around 15 minutes?<br> <br> Thank you.

Hello,<br> What I would recommend for having a greater time interval between your measurements is to take a look at output delay in the manual below, as well as source delay.<br> Output delay I would read through how that function works and see if you want to utilize this function.<br> For source delay, I would recommend setting this to the max interval (99 s.) so there is a larger time difference between each of your measurements, meaning it will take longer between measurements and increase the time of your test.<br> <br> A different way you could achieve the 15-minute window between measurements, or a time frame around that mark, is to utilize external triggering.<br> <br> See page 3.5 AND ON for all of this information for the SDM (Source Delay Measure) process.<br> <a href="https://www.tek.com/en/tektronix-and-keithley-dc-power-supplies/keithley-2280s-series-manual/series-2280-precision">Series 2280 Precision Measurement DC Power Supplies Reference Manual | Tektronix</a>