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

95-8549 2 13.1
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.
NOTE
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.
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 / Signaling 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.
LED
A tri-color 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.
attEntIon
The X2200 contains a source tube that is filled
with a gas mixture containing Krypton 85 (Kr
85 ),
a radioactive material. Radioactive materials are
subject to regulation under U.S. and international
law.
oi
(OpTICAL INTEgRITy)
Automatic oi
The X2200 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, 60 times per
hour. 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 output and is evident by the yellow color of the LED
on the face of the detector. See the "Troubleshooting"
section for further information.
table 1—Detector status conditions indicated by current Level
Current Level (±0.3 mA) Detector status
0 mA Power Fault
1 mA General Fault
2 mA oi Fault
4 mA Normal Operation
16 mA Pre-Alarm
20 mA Fire Alarm
table 2—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 off for 0.5 sec.
every 5 sec.
Fault Yellow
Pre-Alarm/Background UV Red, flashing on for 0.5 sec. and
off for 0.5 sec.
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