Two-wire RTD connection circuit diagram XTR108

Posted on Mar 28, 2007

As shown, the long wire current loop transmission will be introduced radio frequency (RF) interference, RF energy can cause sensitive XTR108 input errors, performance in an uns

Two-wire RTD connection circuit diagram XTR108
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table loop current or input line current. If the RTD sensor in the distance, in the XTR108 input will introduce interference. If the transmitter and sensor short connections, the more interference from the current loop cable. The solution is applied at the input 0.01 F bypass capacitor filter, to reduce or eliminate the interference. Connect these common points with IRET end of the bypass capacitor, although IRET ends of the DC voltage is not zero, but it is the transmitter of ground. In addition, VLOOP with a 0.01 F capacitor Io indirect end, the output will help to minimize interference.

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