04 September 2012
The SRM is part of the company’s FS functional safety series and accepts single contact closure inputs from logic solver trip outputs including Moore Industries’ STA Safety Trip Alarm and the SPA2 Programmable Limit Alarm Trip. With three contacts per alarm input, the SRM is said to allow for the addition of alarm contacts to safety processes without special installation or configuration.The SRM is a force guided relay,which avoids the possibility of having contacts getting stuck in both Normally Open (NO) and Normally Closed (NC) positions at the same time and avoids potential problems caused by issues such as welded contacts. It is built using a safety-related relay with forcibly-guided contacts, that are monitored and mechanically linked to the same armature as the output contacts.A big benefit of the SRM is said to be its ease of use. It features front-panel visual diagnostics, with three LED indicator lights reflecting the current input, output and power status. It can also be installed in an SIS with minimal wiring.
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