The FIBERSYSTEM 8000 provides one fault relay and 43
alarm relay outputs (dry contacts) that are capable of notifying
the user of
alarm conditions.
•
The fault relay is normally closed and in the event of an
instrument failure or power outage open.
•
The alarm relays are normally open and in the event of an
alarm condition the contacts will be closed.
Reverse logic can also be programmed. The resulting ability to
switch between these two states provides several options for the
user. For example, the output can be used to operate external
audible alarms or warning lamps.
Each relay circuit consists of an additional serial and parallel
resistor as on the figure below.
The Protectowire Company, Inc.
FIBERSYSTEM 8000 - Linear Heat
Series