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E-HELP: Monitoring and Alarming on Critical HART Data with the HIM

E-HELP: Monitoring and Alarming on Critical HART Data with the HIM
Q: Is the SPA2 Limit Alarm Trip compatible with HART and can you pass HART through the unit? Our application is a control valve with a loss of signal cutout. We are using the SPA2 for this with position feedback via a Tri-Loop.

A: The SPA2 HLPRG model can be added to an existing HART loop without disrupting the existing HART communications on the loop. However, the optional analog output of the SPA2 will not contain any of the HART digital components so it won’t be useful for connecting to the Tri-Loop.

Published: June 15, 2015

E-HELP: Setting Multiple Trip Setpoints with the ECA

E-HELP: Setting Multiple Trip Setpoints with the ECA

Q: I am interested in an ECA alarm unit, model #: ECA/4-20MA/DH1H1/24DC/DIN. I have three questions:

1. I have a need for three different trip setpoints based on the same transmitter input. How can I accomplish this with the ECAs? Can I use two ECAs using the second ECA with a 1-5VDC input or can the 4-20mA signal be run in series through both ECA inputs?

2. Do I need to specify the -RF option to get the RFI protection? And is the testing for both radiated and conducted susceptibility (RS103, CS114, CS115)? Is it possible to see the test report for the EMI/RFI testing?

3. Is DIN-rail the only mounting option?

Published: June 9, 2015

Configuration Video Tutorials Now on YouTube

Configuration Video Tutorials Now on YouTube
Last month we told you about a new video tutorial on the configuration of the THZ3 and TDZ3. We’ve now updated our YouTube page with video tutorials from Customer Service Director Bob Croughwell on how to use the included software to configure several of our most popular products:
Published: May 14, 2015

STA Safety Trip Alarm Video Shows Its Use as a Logic Solver

STA Safety Trip Alarm Video Shows Its Use as a Logic Solver
Want to see exactly how our SIL 3-capable STA Safety Trip Alarm serves as a logic solver that goes beyond what customers would expect from a standard alarm trip? A video available at our Interface Solution Video Library shows how the STA can initiate emergency shutdown procedures or alert personnel of unsafe process conditions.
Published: May 8, 2015

E-HELP: The Fault Alarm on the STA

E-HELP: The Fault Alarm on the STA
Q: Could you let me know the specific instances where the Fault Alarm trips on the STA Safety Trip Alarm are used?
Published: April 21, 2015
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