PCI 4351 problem

[musty]

hello,

when i try to use a pci 4351 for thermocouple, with dasylab, and nidaq driver, i have 3 problems:

 -the first, when i used the scaling module to use with termocouple, i have the CJC compensation disable, is it possible to resolve that?

 -the second, it's when i record with this card, for à long time, i have an offset(+2 hours for 2 days) in the time recorder.Is it possible to fix that?

-the third, i ask to NI, if it's possible to used this card with Nidaqmx driver or to devellop à daqmx driver for this card will be very usefull.

Thank you for your answers

Message Edité par musty le 02-15-2009 08:54 AM

[CJ_Butler__DASYLab_Pro]

To use the thermocouple, you must use a Virtual Channel when using Traditional NI-DAQ. Then, NI-DAQ will do all the work, and DASYLab will just read the final scaled temperature value.

[musty]

thank you for your answers, but where i can found the virtual channel, Is it in MAX or Dasylab ?

musty

[CJ_Butler__DASYLab_Pro · Accepted solution]

Musty,

It's in Max, in the Data Neighborhood. Click on "Create New" and select the Traditional NI-DAQ Virtual Channel. 

[musty]

hello,

I have try this solution and  it's ok for integer CJC,Auto-zero in virtual chanel.

But for the second problem it's the same thing, the time got an offset for a long period of acquisition,did you have a solution?

Thank you for your reply,

[CJ_Butler__DASYLab_Pro]

I'm not sure what the problem is.

It may be related to your time base settings, or to your version of the software. You should contact your DASYLab reseller for some direct assistance. You will need to provide information from the Help->Report, your worksheet, as well as your NI-DAQ settings. 

[MD_ELECTRONIC]

It's a well know and discussed problem on the French Dasylab Forum.

You can find the explanation, the discussion and the solution, with example, at the following link :

http://forum.aceboard.net/128657-431-6544-0-Synchronisation-temps-pour-acquisitions-longue-duree.htm

I hope you read french !!!

If it's not clear contact is Frédéric Miqueau : mdelectronic@mdelectronic.fr

Good job with Dasylab !!!