Robert Hopkins

Thanks. I am not experienced enough with use of the instrument to fully understand. I guess you are saying that I can use the multiplexer I but have to account for scan rate. What is the maximum scan rate? If you are using three channels, would all three be scanned at the same rate, and would that be 1/3 of the maximum?

And a side question, can I log digital input data or must the  input be analog? The input data would be voltage, but it might be coming from a digital source.

Is the DMM6500 the same as the DAQ6510 such an application? I have one of each.
 

If you are using the DAQ6510 for logging data at a 1,000 sample per second rate, can you also use the multiplexer, or is the DAQ dedicated to the front panel for data logging?
 

I find that I can set sample rate if I select "Digitize Voltage". The slowest sample rate I am able to set is 1mS which is much faster than I need. I would like 10mS. I could accept 20mS. Sampling at 100mS rate is much too slow for my needs.<br> <br> I see no "Digitize Resistance" option, I also would like to sample 2-wire resistance at a 10mS rate.<br> <br> I am using the software with a mechanical endurance test machine which typically might run 100,000 cycles and the motor moves typically at a 30 rpm rate. I do not need the high sample rate of 1mS, and it produces much more data than is needed.<br> <br> Is there any way I can set the software to sample at a 10mS rate, both resistance and voltage? My minimum sample rate would be 20 mS rate.<br> &nbsp;

How can I set a sampling rate for the DMM App? I would hope to find a box in settings where I can set the rate, but there is no such box. I find that changing the value in NPLC can sort of set the rate. For example, if I use 0.8333, I get almost exactly, but not exactly, 50 samples per second. If I run it a second time, the exact sample rate is different, still close to 50 samples per second but different from the previous test. I want to be able to compare two sets of data, and to do that I need to have exactly the same clock rate.<br> &nbsp;

Is there a user manual, or a reference manual for the DMM App? I can only find a Quck-Start Guide which does not answer detailed questions.