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[SOLVED] Solution for 4-20mA loops

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tinkujangid

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my hydrostatic pressure transmitter giving output 27mAmps current in circuit IC is XTR105 what is the problem anyone can tell me ?
 

SunnySkyguy

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Basically Ohm's and Kirchoff's rules apply.

Where is your schematic of the system, test method and results for each pin.

if any one of the three RTD connections is broken, the XTR105’s output current will go to either its high current limit (≈ 27mA) or low current limit (≈ 2.2mA).
 

tinkujangid

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its two wire RTD connection and we manually calibrate it using TRIM pot. of 50ohm and 100ohm .so using pot. it is not going to change manually and when i apply pressure on sensor the current not change ..always give 27mAmps in output /
also i used trim pot of high value and changed IC nothing went change. what should i do in this case ?
 

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