Measurement Input Parameters
Unit
Current Value
Full Range
Millivolt Output Parameters
Supply Voltage (V)
Span Sensitivity (mV/V)
Zero Offset (mV)
Full Range Output (mV)
Output Reading (mV)

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Measurement Input Parameters

Unit

You choose and enter the measuring load, e.g. N, kgf, lbf etc.

Current Value

Apply the force measured by the load cell that you wish to convert into a millivolt (output reading).

Full Range

The maximum force that the load cell will measure.

Millivolts Output Parameters  

Supply Voltage (V)

Excitation voltage in volts applied to the load cell Wheatstone bridge strain gauge circuit (The millivolt output of a non-amplified load cell is linearly proportional to the excitation voltage).

Span Sensitivity (mV/V)

The full span of output per supply volt characteristic for the load cell Wheatstone bridge circuit.

Zero Offset (mV)

Measured output of the load cell, powered by the specified supply voltage (with no load applied).

Full Range Output (mV)

The full range output of the load cell in millivolts, powered by the specified supply voltage (with the maximum measurable force applied).

Output Reading (mV)

Expected ideal load cell output in millivolts for the applied force specified.

Example 1      

V_+in and V_-in meaning

I am using force sensor and I want to calculate the V_out of the force sensor.  The formula given is V_out = G * (V_+in - V_-in) + V_ref , but I can't find the V_+in and V_-in in the product datasheet.

V+in and V-in represent the voltage applied to each side of the load cell strain gauge bridge circuit of the force sensor.
Typically is: V+in = +10 volts and V-in = 0 volts, but it could be other positive and/or negative voltage values. The difference between the two values is what powers the sensor and controls the amplitude of the output signal.