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RTD with 0.04 adjustment

This is a school assignment and I am trying to use a variable resistor as an RTD because I cannot find an RTD in the list of components.  This RTD has to change resistance by 0.04 per degree, and I have no idea how to do that.  Can someone please walk me thru this?  I am using Mutlisim Version 13 if that matters. 

 

This is the exact language from my lab problem if you need more information:

 

The RTD will generally operate between 80° to 175°C and has a resistance of 220Ω at 20°C. The fractional change in resistance per 1°C is 0.0040. The dissipation constant is 25mW/°C. Design a circuit to activate an LED alarm when the temperature reaches 150 °C. The error should not exceed +/-1°C. Use a single supply voltage.

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Hello!

 

I've found the following information that might be useful for you, it is the simulation of an RTD, check it and let me know if helps:

 

How do I Simulate an NTC Thermistor With Multisim?

http://digital.ni.com/public.nsf/allkb/BCACAEEBDA7F70C9862571D3004EA5B0

 

Can I simulate an NTC thermistor with the RESISTOR_VIRTUAL component in Multisim?

http://digital.ni.com/public.nsf/allkb/6B56D525AB21781F862571D3004E5F0A

 

How do I Simulate a Pt100 RTD with Multisim?

http://digital.ni.com/public.nsf/allkb/3B8920EA67EA8531862571CA002E6FEF

 

Luis G.

 

 

 

 

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