Agency approval places limitations on the relay module. AND voting logic is not available with Quad Relays. Grounded tip thermocouples cannot be used with intrinsic Safety Barriers. External Safety Barriers must be ordered separately. Relay option 03 is not available with internal barriers.
Bold text indicates options as shipped standard from the factory.
Bently Nevada recommends the use of redundant transducers with AND Alarm 2 voting logic in those installations where the Alarm 2 relay is connected to a machine shutdown device. For Quad Relays, AND voting logic must be done externally by wiring the contacts in series.