alkaram Posted December 18, 2014 Share Posted December 18, 2014 I am trying to quantify the impact of the electromagnetic noise from a solenoid valve on a pH electrode. I have attempted to build a simple Faraday cage around the valve to block some of this noise and I am trying to test if it works. I have set up a script in DAQFactory to turn start streaming a channel at 12000 Hz, start logging pH data stream, and then turn valve off and on to observe the impact on the voltage output of the probe. I believe I am running into timing issues when logging the streamed data. I receive an error message towards the end of the script. The data still logs to the specified file, but the length of my data doesn't match what I would expect based on my scan rate. These imgur images show the script for my stream/logging, starting stream script (based on StreamOneChannel) , and the error message I receive. I had previously changed the DAQFactory clock to use the system time by adding UserTime.dll to the DAQFactory directory. I have since deleted this, re-started the program, and still run into the same problems. Any suggestions on how to proceed? Link to comment Share on other sites More sharing options...
AzeoTech Posted January 7, 2015 Share Posted January 7, 2015 This sort of error is most likely due to mismatch of versions. Download the absolute latest LabJack UD drivers and firmware and see if it repeats. Link to comment Share on other sites More sharing options...
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