Uncertainty Calculation for 6mV Input on Linear Force Measuring Device

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The discussion centers on calculating uncertainties for a linear force measuring device with specified input and output ranges. The device operates between 50 and 95°F, affecting its zero and span due to temperature variations. Participants express confusion regarding the input and output values, particularly the relationship between the 6mV input and the 100 lbf range. The expected uncertainty results are +0.015/-0.012, but users struggle to derive this from the given specifications. Clarification on how to apply the temperature effects to the calculations is sought.
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Homework Statement


A nominally linear electrical output force measuring device has the following manufacturer
specifications:

Input range : 0-100 lbf
Full Scale output : 30mV

Temperature effect on:
Zero 0.002 % full scale/degrees Fahrenheit
Span 0.002 % of reading/degrees Fahrenheit

The device is used in an environment where the ambient temperature is not controlled
and can vary between 50 and 95°F.

For an input of 6mV, what are the uncertainties from these effects?

Homework Equations

The Attempt at a Solution


I am supposed to be getting +0.015/-0.012 as the answer but I don't know what I should do to get this. I have tried 0.002 % of 100, 30 , 60 but nothing is working
 
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pinkcashmere said:

Homework Statement


A nominally linear electrical output force measuring device has the following manufacturer
specifications:

Input range : 0-100 lbf
Full Scale output : 30mV

Temperature effect on:
Zero 0.002 % full scale/degrees Fahrenheit
Span 0.002 % of reading/degrees Fahrenheit
Can you elaborate a bit on what these mean?
pinkcashmere said:
The device is used in an environment where the ambient temperature is not controlled
and can vary between 50 and 95°F.

For an input of 6mV, what are the uncertainties from these effects?
I'm confused. Above you say that the input range is 0 - 100 lbf (pound feet?), and the max output is 30mV. Just above you say that the input is 6mV. Do you have the inputs and outputs switched?
pinkcashmere said:

Homework Equations

The Attempt at a Solution


I am supposed to be getting +0.015/-0.012 as the answer but I don't know what I should do to get this. I have tried 0.002 % of 100, 30 , 60 but nothing is working
 
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