Det-Tronics S3 Graphics - Manual (Page 144)

EAGLE QUANTUM PREMIER DEVICES 12-29 EAGLE QUANTUM PREMIER DEVICES
Version 6.0
Alarm Latching
This refers to the fire alarm “message” being sent from the detector to the EQP controller
and then used in both the embedded and user programmed logic. Non-latching is the
default and most common setting.
Using the Radio Buttons select either latching or non-latching for the alarm operation. If
set to latching, the user will have to reset the detector from its S 3 Point Display following
an alarm.
Time Delay
An input time delay can be programmed by entering a value from 1 to 15 seconds in
the provided field.
This will delay sending the fire alarm message to the EQP controller until the fire alarm
has been generated uninterrupted for the specified time. This programmable delay can
be used to filter out spurious events.
PV Deadband
A field is provided to enter the desired PV (Process Variable) Deadband.
Normally all values are transmitted to the controller every five seconds; If the PV changes more
than the entered percentage before the five second report time arrives, an immediate message is
sent with the current values.
Heater
A checkbox is provided to enable the Microprocessor controlled heated optics for increased
resistance to moisture and ice. In climates where this is not an issue, deselecting this option
will save up to 8 watts per detector.
X9800 • ALARM LATCHING