Application Notes
EAP-031026

I want to use M-System's strain gauge transmitter model M2LCS. But there is a problem. The excitation voltage of the M2LCS is 5V, while the recommended excitation voltage of my strain gauge is 12V. MS Word


You can connect the M2LCS to this strain gauge without problem.

To provide output signal, a strain gauge needs to be supplied voltage from external source, which is called "excitation voltage". Recommended excitation voltage means maximum voltage which satisfies the specifications of strain gauge. You can use less voltage than recommended excitation. In general, recommended excitation voltage is 10-12V.

With low excitation voltage, you will find difficulties in amplifying the low output signal from a strain gauge. However, M-System's strain gauge transmitter is designed to amplify such a fine signal with good stability. Without special requirement, the excitation voltage of the strain gauge transmitter is factory adjusted to 5V. In case you need to adjust it to a value greater/smaller than 5V, an excitation adjustment potentiometer on the front panel will b helpful. Its adjustable range is 2 to 10V.

M-System has flexible solutions to meet your specific application and requirements. Consult our Signal Conditioners Data Library.


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