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How i can connect two pressure transmitter E&H to Ai SM331-1KF01?

Created by: Hamid Eghbalpour at: 9/5/2011 11:06 AM (7 Replies)

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9/5/2011 11:06 AM	Rate (0)
Hamid Eghbalpour Member Joined: 9/5/2011 Last visit: 8/18/2023 Posts: 15 Rating: (0)	Dear all, i want to connect two pressure transmitter Endress Hauser ( Cerabar S PMC71 ) to an AI SM331-1KF01-0BA0 but it is impossible and a fault in reading data from transmitter occured. but when i connect only one pressure transmitter to analog input mentioned that is true, Iupload my wiring method for connecting two sensor to AI SM331-1KF0A-0BA0 in pdf format . also my Pressure Transmitter have HART is it important? and what is remedy ? Help me thanks. Attachment drw.pdf (187 Downloads)

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9/5/2011 12:56 PM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, Did you connect the M- to ground too? Hart must not be a problem. Attached the manual of this (older) module. Regards, Marcjan Attachment 1kf01.pdf (168 Downloads)
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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9/5/2011 6:41 PM	Rate (0)
Hamid Eghbalpour Member Joined: 9/5/2011 Last visit: 8/18/2023 Posts: 15 Rating: (0)	Thanks for your attention, allright, i see manual that you upload for help. also i connect all m terminal with together and connect all ofthem to circuit ground. but it is not enough, however this problem hasnt solved. i suggested that please check the wiring pdf that i upload in my post waht is false in my wiring that presented in drw.pdf file ?

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9/5/2011 8:19 PM	Rate (0)
poya_xp Posts: 167 Rating: (4)	H.Eghbalpour Thanks for your attention, allright, i see manual that you upload for help. also i connect all m terminal with together and connect all ofthem to circuit ground. but it is not enough, however this problem hasnt solved. i suggested that please check the wiring pdf that i upload in my post waht is false in my wiring that presented in drw.pdf file ? Hi there is no PT in your drawing that you Uploaded is this mean that connections are same with LT or FT that there are in drawing?
poya_xp Posts: 167 Rating: (4)	Last edited by: poya_xp at: 9/5/2011 8:26 PM
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9/6/2011 7:19 AM	Rate (0)
Hamid Eghbalpour Member Joined: 9/5/2011 Last visit: 8/18/2023 Posts: 15 Rating: (0)	Dear poya_xp allright, that is not important, you can change the name of sensor in circuit diagram, you consider that name of sensor isnt LT or anything , and it is Pressure Transmitter. no problem ok. thanks.

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9/6/2011 11:24 AM	Rate (0)
poya_xp Posts: 167 Rating: (4)	Hi are you sure from healthy of your transmitters? i mean did you test and connect both of your transmitters individually? if so, did you check other channels of AI?
poya_xp Posts: 167 Rating: (4)
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9/10/2011 6:34 AM	Rate (0)
Hamid Eghbalpour Member Joined: 9/5/2011 Last visit: 8/18/2023 Posts: 15 Rating: (0)	Hi Dear Pressure Transmitter Dont Have Any Problem and I test them For Various Channel. when i connect one PT it works true, But if i connect another PT it doesnt work correctly. chek my wiring diagram.

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9/16/2011 2:37 PM	Rate (0)
kenzo103 Bronze Member Joined: 12/17/2008 Last visit: 10/26/2022 Posts: 40 Rating: (0)	Try to connect the transmitter 4-20mA direct to AI module, without any additional voltage serial to this signal. Best regards

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