Load cell interface..need help

Thread Starter

gotumal

Joined Mar 24, 2008
99
Hi,
I have a load cell which is interfaced with instrumentation amplifier in the differential mode. I want to have "sensor open" indication. I got a clue of connecting very high resistance (>1M) as a pull up and pull down to non-inverting and inverting terminals respectively. But didn't work.

Could anybody give some idea?

P.S. I am expecting IA to go in to saturation.
 

beenthere

Joined Apr 20, 2004
15,819
As long as the inputs are common mode, then there won't be any amplification. You might be able to set up a resistive path to a voltage at just one input, but be careful it doesn't mess with the load cell response.
 
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