Det-Tronics X2200 UV Flame Detector with Pulse Output - Manual (Page 4)

95-8552 5.3 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.
Latching relays can be reset by removing input power
(0.1 second minimum).
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 tricolor 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 detector status.
OpTICAL INTEGRITY (
oi
)
Automatic oi
The X2200 includes the Automatic Optical Integrity
(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 X2200 signals a fault condition when less than half
of the detection range remains. This is indicated by the
fault relay and is evident by the yellow color of the LED
on the face of the detector. 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 and
manual 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
magnetic
oi or manual oi test cannot be
performed.
The magnetic oi test is initiated by placing a magnet
at the marked location (mag oi) on the outside of
the detector. 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).
Table 1—Detector Status Indicator
Detector Status LED Indicator
Power On/Normal Auto oi
(no fault or fire alarm)
Green
Power On/Normal Man oi
Green, flashing on for 0.5 sec.
every 5 sec.
Fault Yellow
Pre-Alarm/Background UV
Red, flashing on for 500 ms.
and off for 500 ms.
Fire (Alarm) Steady Red
On Power-Up, The LED Flashes in Sequence as Follows,
Indicating Sensitivity and Signal Processing Status
Low UV Sensitivity
Medium UV Sensitivity
High UV Sensitivity
Very High UV Sensitivity One Red Flash
Two Red Flashes
Three Red Flashes
Four Red Flashes
Stand. UV Signal Process.
Arc Rej. UV Signal Process. One Yellow Flash
Two Yellow Flashes