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Example:
You have a load cell with the specifications given below
Maximum Capacity = 100 lbs
Rated Output = 2 mV/V
Excitation = 10 VDC
Bridge Resistance = 350 ohms
What would the Input Range Jumper and Excitation Jumper be set for in order to have a 0-10VDC output, 0-5VDC output, and a 0-2.5 VDC output?
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The equation for finding the Output Span is:
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Output Span = ((Rated Output(mV/V))*Excitation(V))/Input Range(mV/V))
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Since it is known that the Output Span needs to equal 10VDC, 5VDC, and 2.5VDC, and the Rated Output is 2mV/V, then all we need to do is determine the Input Jumper and the Excitation Jumper that make the equation above true
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The best way to do this is to set up a table like the one below (using the Input Value listed and Excitation values listed you come up with the Output Spans values (Red):
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Note: All Output Span values are in VDC
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The required Output Spans are 10VDC, 5VDC, and 2.5VDC, thus:
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1) For 10 VDC:
The jumpers could be set for either of the following combinations:
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Input Value: 1.0; Excitation: 5 VDC
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Input Value: 2.0; Excitation: 10 VDC
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2) For 5 VDC:
The jumpers could be set for either of the following combinations:
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Input Value: 2.0; Excitation: 5 VDC
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Input Value: 4.0; Excitation: 10 VDC
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3) For 2.5 VDC:
The jumpers could be set for either of the following combinations:
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Input Value: 4.0; Excitation: 5 VDC
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Please Note: Since the CSG110 has a maximum Output Span of 10 VDC any value combination of Input Value and Excitation that leads to an Output Span greater than 10 can not be used
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