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EHELP: Are the STA and SPA2 process alarm relays configurable as Failsafe?

EHELP: Are the STA and SPA2 process alarm relays configurable as Failsafe?
Q: For the STA 4-Wire SIL 2 and SIL 3 Compliant Programmable Current/Voltage and RTD/Thermocouple Safety Trip Alarms, can the process alarm relays be configured as Failsafe?  Can the process relay output of the SPA2-TRPRG be configured Failsafe?
Published: November 15, 2016

EHELP: Improving Long Term RTD Temperature Measurement Stability

EHELP: Improving Long Term RTD Temperature Measurement Stability
Q: What are some ways to improve the long-term stability of my RTD temperature measurement?
Published: October 18, 2016

EHELP: STA Analog Output Protection

EHELP: STA Analog Output Protection
Q:  In specifying the Moore STA / HLPRG / 3PRG / U / -AO [DIN] our end user has a concern about electrical protection for the analog output. The desire is to use 4-20mA Output Loop Voltage sourced by DCS for the AO; however, this voltage may fault at up to 132 VAC. Should our design add fuse protection in the external voltage circuit upstream of the STA to protect it from these surges? Or does the STA include features that protect it from these faults?
Published: October 4, 2016

EHELP: What is the 2 in IPT2

EHELP: What is the 2 in IPT2

Q:  A field tech told me he installed an IPT2/4-20MA/3-15PSIG/20PSIG/-FA1 [DIN] unit.  In the product bulletin I don't see a purpose for the trailing "2" in the model name, and I don't see an explanation for -FA1.

Published: September 20, 2016

EHELP: SPA Power Consumption

EHELP: SPA Power Consumption

Q:  We are considering ordering the Moore Industries SPA/0-100mV/2 PRG/U/-SOL [DIN]. Can we power it using 24VDC? If so, what is the power consumption and how do we terminate? Also, can you please confirm whether this unit is Class 1 Div2, group A,B,C,D?

Published: September 13, 2016
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