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Alarm Trip 1-out-of-2 Voting with High Availability

Alarm Trip 1-out-of-2 Voting with High Availability
A customer has a Safety Instrumented Function they need to implement with two independent level transmitters (radar), each wired to a separate STA Functional Safety Trip Alarm. The process will trip if either level reaches the set point, for example a 1 out of 2 (1oo2) voting. However, if the alarm trip (STA) detects an input or unit fault. The customer did not want the process to trip. Instead they wanted to take the faulty unit out of service leaving the process running with the one good level and alarm trip. 
Published: November 28, 2017

Now Available! Rear Terminal Kit for the TDZ3 and STZ HP

Now Available! Rear Terminal Kit for the TDZ3 and STZ HP

Moore Industries has released the Rear Terminal Kit for the TDZ3 and STZ HP.

Published: November 23, 2017

Explosion-Proof Field-Mount Enclosure for Hockey-Puck Instruments

Explosion-Proof Field-Mount Enclosure for Hockey-Puck Instruments

For Explosion-Proof and General Locations:
The BH housing provides superior explosion-proof protection for field-mounted units and meets standards for enclosing indoor and outdoor electronic instruments approved for use in explosion-proof, dust-ignition proof and intrinsically-safe locations.

Published: November 15, 2017

EHELP: Is there a Dual Signal Isolator/Converter/Splitter for Different Outputs?

EHELP: Is there a Dual Signal Isolator/Converter/Splitter for Different Outputs?
Q. As part of a power distribution process I need a dual signal isolator/converter/splitter that has an input of 0-1mA, outputs of 0-1mA and 4-20mA with 117VAC power input? It needs a DIN housing so it can be mounted in an existing cabinet.
Published: November 15, 2017

Sharing Process Variables: Quad Isolator

Sharing Process Variables: Quad Isolator

Problem: When sharing a Process Variable (PV) with multiple systems, the connection needs to be thought out carefully. Sending a signal go to more than one PLC needs to be well thought out just as carefully.

Published: November 7, 2017
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