Cernox sensors

2000, 2001, 2002, 2010, 2100, 2110
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pascalgehring
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Joined: February 23rd, 2016, 5:23 am
Country: United Kingdom

Cernox sensors

Post by pascalgehring » February 23rd, 2016, 5:29 am

Good afternoon,

can you tell me if I can use a normal Keithley 2000 to measure temperatures using a Cernox sensor (ideally 4-wire probe)? Typical resistance range is between 50 Ohm and 50 kOhm.
(http://www.lakeshore.com/Documents/CX_RSDSsm.pdf )

Thank you!

Dale C
Keithley Applications
Keithley Applications
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Re: Cernox sensors

Post by Dale C » February 23rd, 2016, 6:00 am

Model 2000 only measures temperatures with thermocouples as the sensors.
If you want to use the Model 2000 to measure temperature with RTDS(Cernox) then you would have to measure the resistance using the four wire measurement function. And then calculate the temperature using the Callendar van Dusen equation.
The Model 2700 measures temperature using thermocouples, RTDs and thermistors. It would work for this application.

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