Det-Tronics X3301 Multispectrum IR Flame Detector with Pulse Output - Manual (Page 4)

95-8528 11.1 2
OUTpUTS
Relays
The detector is furnished with fire and fault relays. The
relays are rated 5 amperes at 30 Vdc.
The Fire Alarm relay has redundant terminals and
normally open / normally closed contacts, normally
de-energized operation, and latching or non-latching
operation.
The Fault relay has redundant terminals and normally
open contacts, normally energized operation, and
latching or non-latching operation.
An alarm condition will normally over-ride a fault
condition, unless the nature of the fault condition
impairs the ability of the detector to generate or
maintain an alarm output, i.e. loss of operating power.
LED
A tri-color LED on the detector faceplate indicates
normal condition and notifies personnel of fire alarm
or fault conditions. Table 1 indicates the condition of the
LED for each status.
oi
(OpTICaL INTEgRITy)
automatic oi
The X3301 includes the Automatic oi feature — a
calibrated performance test that is automatically
performed once per minute to verify complete detector
operation capabilities. No testing with an external test
lamp is required. The detector automatically performs
the same test that a maintenance person with a test
lamp would perform — once every minute. However,
a successful Automatic oi
test does not produce an
alarm condition.
The X3301 signals a fault condition when less than half
of the detection range remains. This is indicated by the
Fault output and is evident by the yellow color of the
LED on the face of the detector. The oi fault condition
is self-clearing if the optical contamination is temporary.
If the contamination is not automatically cleared and the
oi fault remains, the detector may require cleaning or
service. See the “Troubleshooting” section for further
information.
Magnetic oi / Manual oi
CaUtIon
These tests require disabling of all extinguishing
devices to avoid release resulting from a
successful test.
The detector incorporates both Magnetic oi (Mag oi )
and Manual oi (Man oi ) test capabilities. These tests
provide pulses (80 to 100 CPS) to the controller (R7404
or R7494) when the detector is not in fault. If the test
is successful, the controller indicates a fire and the
appropriate zone output is active.
NOTE
If the detector is in a fault condition, a successful
Mag
oi or Man oi test cannot be performed.
The Mag oi test is initiated by placing a magnet at
the location marked “MAG OI” on the outside of the
detector (see Figure 2). This action causes the detector
to immediately send pulses to the controller. Controller
response is as follows:
• The Zone LED blinks.
• The digital display indicates which Zone is in alarm.
• The status indicator shows “6” (fire).
Important
Mag oi can be performed with the controller’s
(R7404/R7494) keylock switch in either the
NORMAL or TEST position. In NORMAL, the
controller goes into alarm and activates its outputs.
If no controller alarm output is desired, place
the keylock switch in the TEST position before
touching the magnet to the outside of the detector.
Man
oi
operates only with the keylock switch in
the TEST position.
Table 1—Detector Status Indicator
Detector Status LED Indicator
Power On/Normal Operation
(no fault or fire alarm)
Green
Fault Yellow
Fire (Alarm) Red
Low Sensitivity
One Yellow Flash
During Power-up
T-Low Sensitivity
Three Yellow Flashes
During Power-up
Medium Sensitivity
Two Yellow Flashes
During Power-up
Very High Sensitivity
Four Yellow Flashes
During Power-up
NOTE: See "Detector Sensitivity Levels" for additional information .