Changed Pressure transducers with 0-5Vdc from the old 0-10. PVis way off!

[dano1234]

Im a newby with labiew as of last week. I was tasked to change the range of new pressure transducers that were recently installed in our lab application. I am currently running 6.1 with Fp-PS-4 , FP-1601 , FP-AI-112 , and FP-RTD-124 Hardware. We are changing over from Omegadyne model PX02C1-015AV to swagelok's S-model, output 0-5, Supply V dc= 10-30 V. The pinout on the connector has already been changed and tested. I also changed the range on the points of change to 0-5 and the pv is reading way off. Im sure there is a scale in a block diagram chart somewhere, but I cannot locate it. Can anyone point to any areas where I may make these changes to correct this problem?

[ssk]

Try looking in Fieldpoint Explorer and see if any custom scaling has been applied to the channels.

[dano1234]

I have been looking under measurement and automation explorer. I cant find any customized scaling, but maybe im overlooking something. It all llooks like speghetti right now.

[eek]

Hi Dano,

You might check the Channel Configuration settings in Measurement and Automation Explorer (MAX). Under Remote Systems, expand the I/O modules underneath your 1601. Once you click on the I/O module that you are reading your transducer on, you'll see in the window to the right a Channel Configuration tab. Here, you can check the Data Configuration setting for the input Range. Make sure this is set to the expected signal range from your sensor.

Cheers,

Emilie K. | Applications Engineer | National Instruments

[dano1234]

Thank you  for the help. However, I made this change last week and this is where I found out there was some custom scaling somewhere within the programming. I found the custom scaling done inside VI  and this is where I will need to configure the offset and Scale within a math block diagram.