When using the vi: "FLUKE 884X Series Read Single Measurement.vi" with a FLUKE 8846A it is reading an "overload" error message

[heinzmann]

The vi: "FLUKE 884X Series Read Single Measurement.vi" can be downloaded from "http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=9431"

I want to use this driver to read out a 4-wire resistance which in deed is a PT100 resistor to measure the temperature.

When i click on the "run continuously" - button on the LabVIEW Front Panel, the program reads out the current resistance.

However after each readout there comes the "overload" - error message on the display of the 8846a multimeter.

Sometimes there can be also seen a small "error" - sign on the display and sometimes the 8846a beeps.

I already deactivated the "ID-Query" in the "Initialize.vi"

What can i do to prevent these error-messages ?

[Dennis_Knutson]

To prevent the error messages, you have to stop causing the error to occur.

The display is indicating some problem with the actual measurement. You need to read the instrument manual to determine what will cause the error. You can also perform an error query of the instrument and get an error number back. It may be something as simple as setting the incorrect range.

[Coq_Rouge]

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heinzmann wrote:

When i click on the "run continuously" - button on the LabVIEW Front Panel, the program reads out the current resistance.

What can I do to prevent these error-messages ?

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No no no. The "run continuously"  button is for debugging only and should not be used to run the program at all. If you are polling your instrument to often it will be confused. Check your timing. I think your program poll your instrument at "full speed", perhaps it works because you open and close GPIB driver on every iteration, giving some delay between each readout.    

[heinzmann · Accepted solution]

Thank you for your help.

Instead of using the "FLUKE 884X Series Read Single Measurement.vi" - vi, I am using the "Read (Single Point).vi" - vi, which is also included in the

downloadable file. Now there are no error messages any more.

Best regards, heinzmann.