Signal Conditioning

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I have a SC-2042-RTD Board and the temperature reading I get are approxiximately 7 degrees high. Every thing is connected as specified in the manual. We are using a 3 wire RTD configuratuion.

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I have a SC-2042-RTD Board and the temperature readings I get are approxiximately 7 degrees high. Every thing is connected as specified in the manual. We are using a 3 wire RTD configuratuion. The current excitation is set at 1mA but is actually 1.0035 mA from the board. The Daq card I am using is a DaqCard-A
I16XE-50.
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Two quick things to check are: make sure the sensor does not exceed a max resistance of 8.5k ohms and do not leave any current excitation sources unloaded.

Also, check out chapter five of the SC-2042 user manaul (attached) about how to calibrate the device. This may help get rid of the bad readings.

Brian
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Thanks. The RTD's I am using are only around 100 ohms, and all the excitation sources are loaded. I will try the recalibration.
Jason
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