Det-Tronics X3301 - Communication; Data Logging; Integral Wiring Compartment; Detector Sensitivity Levels

3
95-8704
2.7
CAUTION
These tests require disabling of all
extinguishing devices to avoid release
resulting from a successful test.
The Mag o
i
test is performed by placing a magnet
at the location marked "MAG
o
i
" on the outside
of the detector (see Figure2). The Man
o
i
test is
accomplished by connecting the o
i
lead (terminal
22) to power supply minus via an external switch.
The magnet or switch must be held in place for a
minimum of six seconds to complete the test. Either
of these test methods activates the calibrated
IR emitters. If the resulting signal meets the test
criteria, indicating that greater than half of the
detection range remains, the fire alarm output of
the detector is activated. On all models other than
the EQP, this condition remains until the magnet
is removed or the switch is released, regardless
of whether the detector has been configured for
latching or non-latching operation. On model EQP,
the condition remains for four seconds.
If less than half of the detection range remains,
no alarm is produced and a fault is generated.
The fault indication can be reset by momentarily
applying the Mag
o
i
or Man o
i
switch. In this
case, the detector's optics should be cleaned
and the
o
i
tests should be repeated. See the
"Cleaning Procedure" section of this manual for
details.
NOTE
Refer to Appendix A for FM verification
of the o
i
function.
COMMUNICATION
The X3301 is furnished with an RS-485 interface
for communicating status and other information
with external devices. The RS-485 supports
Modbus protocol, with the detector configured as
a slave device.
For HART communication, connect a HART
communicator across a 250 ohm resistor in the
0-20 mA loop.
NOTE
The EQP model uses LON/SLC
communication. RS-485 and HART
communication are not available on the
EQP model.
NOTE
RS-485 communication is not available on
HART equipped models.
DATA LOGGING
Data logging capability is also provided. Status
conditions such as normal, power down,
general and
o
i
faults, fire alarm, time and
temperature are recorded. Each event is time
and date stamped, along with the temperature
and input voltage. Event data is stored in non-
volatile memory when the event becomes
active, and again when the status changes.
Data is accessible using Det-Tronics' Inspector
Connector accessory, RS-485, or the EQP
Controller.
INTEGRAL WIRING COMPARTMENT
All external wiring to the device is connected
within the integral junction box. The detector is
furnished with four conduit entries, with either
3/4 inch NPT or M25 threads.
DETECTOR SENSITIVITY LEVELS
There are four factory configured sensitivity levels
available for the X3301 Flame Detector:
Very High, Medium, Low, and T-Low.
The following criteria should be considered
when choosing a sensitivity level for the intended
application:
• Detector placement
• Speed of response based on fuel type and fire
size (see Appendix A for examples of response
times)
• Distance between the hazard and the flame
detector
Additional information on X3301 Flame Detector
performance results and sensitivities can be
found in Appendix A, the FM Approval, and
Performance Report.
Consult the factory with any questions on how
to choose the optimum sensitivity level for the
intended application.