Configuring 4-Wire Pressure Transducer with SCXI-1520 using 1314 Terminal block

[Bilal Ahmed]

I am trying to configure Pressure Tranducers with SCXI 1520 using 1314 Terminal Block (SCXI-1000DC with an interface DAQ card 6062E).

These Pressure Transducers have following configuration,

Make: Taber Industries,

Wiring: 4 wires +in -in +out -out , Output:

Input: Max 15VDC calibrated at 10VDC,

Output: 3mV/V (30 mV @ 10VDC)

Problem:

1. I am not sure which bridge configuration is to be used with these pressure transducers. I have looked at SCXI 1520 manual but it doesn't explain anything about pressure transducers.

2. When I use a full bridge configuration, traditional Ni-DAQ to configure SCXI 1520 and create a virtual channel, I do get a linear response from the transducers but it is not the same as actual expected response of the tranducer (calibration data provided by manufacturer and also counter checked by me). I have tried to do some scaling but it doesn't seem to be working.

Request:

Can anyone please guide me where to find the procedure for configuring these pressure tansducers?? and what must be wrong with what I am doing??

Regards,

[Chris_K_]

Hi Bilal

Thank you for using our discussion forums.

I believe that full bridge is the correct configurations for your sensor. 

Have a look at the following link.  This is an article that explains how to configure an absolute transducer such as a pressure transducer with Traditional DAQ.

There may also be a voltage offset causing the incorrect readings.  Have a look at the following link for more information.

Chris_K