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EHELP: I need to boost a 4-20mA HART signal...

EHELP: I need to boost a 4-20mA HART signal...

Q. I need to boost a 4-20mA signal to get a Fisher FIELDVIEW DVC6200 to respond to a control signal. What could I use?

Published: October 18, 2017

EHELP: Can you help specify a splitter that can send the signal to both control systems?

EHELP: Can you help specify a splitter that can send the signal to both control systems?

Q. I have two different control systems and I need some splitters to split a 4-20 mA signal. I may need to have the loop isolated. Can you help specify a splitter that can send the signal to both control systems where I can use the splitter connected in a series on the original loop? My company has used the SIX in the past, would this work?

Published: July 12, 2017

EHELP: Is There a Solution to Pass Hart Data Through an Isolator to My DCS?

EHELP: Is There a Solution to Pass Hart Data Through an Isolator to My DCS?
Q. I want to share a critical pressure signal with my DCS that is now part of our safety instrumented system (SIS) and have a two part question. First, do your isolators pass the HART diagnostic data that comes from my SIS smart pressure transmitter? Second, if there is a total failure of the pressure transmitter, where will the output of the isolator go to that is feeding my DCS?
Published: May 10, 2017
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