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sitrans p

Created by: docmao at: 11/25/2013 6:39 PM (3 Replies)

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11/25/2013 6:39 PM	Rate (0)
docmao Member Joined: 10/12/2010 Last visit: 2/6/2023 Posts: 2 Rating: (0)	Hello Guys, I have a pressure transmitter exi intrinsically safe connected to a galvanically isolated barrier (eexi) the ground connection and binding to terminal 7 Protective conductor connection/ equipotential bonding terminal Thank you! Attachment sitrans p 3.pdf (154 Downloads)

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11/25/2013 8:41 PM	Rate (0)
dchartier Grandmaster Joined: 9/27/2006 Last visit: 12/13/2024 Posts: 12303 Rating: (2693)	Hello docmao; Welcome to the forum. Could you please explain what your problem is, there is no question in your post. Thank you, Daniel Chartier

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11/26/2013 3:24 PM	Rate (0)
docmao Member Joined: 10/12/2010 Last visit: 2/6/2023 Posts: 2 Rating: (0)	Hello Daniel, I have a pressure transmitter exi intrinsically safeconnected to a galvanically isolated barrier (6ES7 331-7RD00-0AB0). The transmitter case, terminal 7 or 9, must be (obligatory) connected to ground counductor (PE)? The shield of the signal cable 4-20mA is connected to ground only in safe area. Thank you

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11/26/2013 11:01 PM	Rate (0)
danw Gold Expert Joined: 3/28/2010 Last visit: 12/12/2024 Posts: 1097 Rating: (216)	Your part number, 6ES7 331-7RD00-0AB0, is the number for an analog input board, so nobody reading this thread knows which pressure transmitter you are working with, so how can we know what terminal 7 or 9 is? In my experience all transmitters used in I/S applications have the case/housing terminal screw connected to protective earth, but I'm not the authority that approved your pressure transmitter for I/S operation. The definitive document for the official, sanctioned wiring of an intrinsically safe transmitter is the control drawing (the electrical drawing) in the transmitter user manual. You'll have to consult that manual and control drawing to determine what terminals 7 or 9 connect to.

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