Anyone experiment with Omega load cell LCMFL?

[Thang Nguyen]

Hi,

I would like to ask if any have experiment with Omega load cell LCMFL series? By some reasons, I cannot get any response from the load cell. So I need help.

In my project I have a load cell LCMFL 20N connect with NI 9237 card. I set it up with full bridge (verify with customer service), internal, 5 V excitation. The scale is 10N 1mV/V. I cannot get any response from it.

Then I tried to connect it with a 5VDC power supply and use multimeter to measure but the response signal is not changed either. So I wonder if I do anything wrong with the wiring or not.

 

Regards,

Thang Nguyen

Edited April 29, 2014 by Thang Nguyen

[pallen]

Hello Thang,

 

The documentation found here: http://www.omega.com/Pressure/pdf/LCMFL.pdf seems to indicate that these load cells require exitation voltage on the Red and Black wires.  This is typical of most load cells.

 

I can't say for sure why your app is not working.  Have a look at the following documentation and check your wiring.

 

http://digital.ni.com/public.nsf/allkb/D02125BF0BFC6130862576650001F14C

http://sine.ni.com/psp/app/doc/p/id/psp-168/lang/en

[Thang Nguyen]

Pallen,

It turns out my censors are fired by my coworker. We ordered a new one and it works as it suppose to be.

 

Thanks all!