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rtd value shown in the field is different compared to my screen

Created by: Dongerpure at: 4/18/2011 3:41 PM (1 Replies)

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4/18/2011 3:41 PM	Rate (0)
Dongerpure Bronze Member Joined: 3/8/2011 Last visit: 5/17/2023 Posts: 262 Rating: (21)	sir my rtd value shown in the field is different compared to my screen..in vat table for1400 its showing 11c in field but in my screen its shw different how should i calirate it..do i need to set some ranges Splitted from Request 3 wire pt 100 wiring connection to SM334.
	Last edited by: O_Moderator at: 4/19/2011 11:14 AM new subject after splitting If this post helped you, you may use the Rate-button
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4/21/2011 4:40 PM	Rate (0)
Aret Posts: 2348 Rating: (264)	1) Check sensor type - configured in HW and set in the field 2) 3wire scheme brings extra resistance on wire - try to use 4 wire. 3) AI module and sensor have defined accuracy, so maybe error of 3 degrees is in acceptible range (1400 for climatic is 14 degrees). 4) Also can check on another module/channel - maybe there is a fault in AI module
Aret Posts: 2348 Rating: (264)	Last edited by: Aret at: 4/21/2011 4:41 PM
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