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The Auxiliary relay has normally open / normally
closed contacts, and is configurable for energized or
de-energized operation, and latching or non-latching
operation.
0 to 20 mA Output
A 0 to 20 mA output is available as an option (in addition
to the three relays). This option provides a 0 to 20 mA dc
current output for transmitting detector status information
to other devices. The circuit can be wired in either an
isolated or non-isolated configuration and can drive
a maximum loop resistance of 500 ohms from 18 to
19.9 Vdc and 600 ohms from 20 to 30 Vdc. Table 1
indicates the detector status conditions represented by
the various current levels. The output is calibrated at the
factory, with no need for field calibration. A model with
relays and 0-20 mA with HART is also available. Refer to
Addendum number 95-8638 for complete details.
The output of the 0 to 20 mA current loop is not
monitored by the fault detection circuitry of the
X2200. Therefore, an open circuit on the loop will
not cause the fault relay to change state or the
detector status LED to indicate a fault. The status
of the LED always follows the status of the relays.
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.
Table 1—Detector Status Conditions Indicated by Current Level
Current Level (±0.3 mA)
0 mA
1 mA
2 mA
4 mA
16 mA
20 mA
LON/SLC Output
The EQP model is designed for use exclusively with
the Det-Tronics Eagle Quantum Premier system. The
detector communicates with the system controller over
a digital communication network or LON/SLC (Local
Operating Network / Signalling Line Circuit). The LON/
SLC is a fault tolerant, two wire digital communication
network arranged in a loop configuration. Analog and
relay outputs are not available on this model.
8.3
NOTE
Detector Status
Power Fault
General Fault
o i
Fault
Normal Operation
Pre-Alarm
Fire Alarm
Table 2—Detector Status Indicator
Detector Status
Power On/Normal Auto
(no fault or fire alarm)
Power On/Normal Man
Fault
Pre-Alarm/Background UV
Fire (Alarm)
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
Stand. UV Signal Process.
Arc Rej. UV Signal Process.
LED
A tricolor LED on the detector faceplate indicates
normal condition and notifies personnel of fire alarm
or fault conditions. Table 2 indicates the condition of the
LED for each status.
OPTICAL INTEGRITY (
Automatic o i
The X2200 includes the Automatic Optical Integrity
(o i ) feature — a calibrated performance test that is
automatically performed once per minute to verify
complete detector operation capabilities.
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, 60 times per hour. However, a successful
automatic o i 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 o i / Manual o i
The detector also incorporates both magnetic o i and
manual o i features that provide the same calibrated
test as the automatic o i , and in addition actuate the
Alarm relay to verify output operation for preventive
maintenance requirements.
performed at any time and eliminate the need for testing
with a non-calibrated external test lamp.
2
LED Indicator
o i
Green
Green, flashing on for 0.5 sec.
o i
every 5 sec.
Yellow
Red, flashing on for 500 ms.
and off for 500 ms.
Steady Red
One Red Flash
Two Red Flashes
Three Red Flashes
Four Red Flashes
One Yellow Flash
Two Yellow Flashes
o i
)
No testing
These features can be
95-8549
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