
395-85541 7. 1
CAUTION
These tests require disabling of all extinguishing
devices to avoid release resulting from a
successful test.
The Mag oitest is performed by placing a magnet at the
location marked "MAG OI" on the outside of the detector (see
Figure 2). The Man oitest is accomplished by connecting
the oilead (terminal 22) to power supply minus via an
external switch. The magnet or switch must be held in place
for a minimum of 6 seconds to complete the test. Either of
these test methods activates the calibrated IR emitter. 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 models with relay, 0–20 mA,
or HART outputs, 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. The fire alarm output condition stays active for
three seconds on Eagle Quantum Premier models.
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 oior Man oi
switch. In this case, the detector's optics should be cleaned
and the oitests should be repeated. See the "Cleaning
Procedure" section of this manual for details.
NOTE
Refer to Appendix A for FM verication of Det-Tronics’
oi
function.
COMMUNICATION
The X9800 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 oifaults, pre-
alarm, 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 the Inspector
Connector accessory, RS-485, or the EQP Controller.
INTEGRAL WIRING COMPARTMENT
All external wiring to the device is connected within the
terminal compartment. The detector is furnished with
four conduit entries, with either 3/4 inch NPT or M25
threads.
SIGNAL PROCESSING OPTIONS
The X9800 features signal processing options. These
options determine the type of logic that the detector will
use for processing fire signals to customize the X9800
to the application. Two signal processing options are
available for the X9800:
– TDSA enabled
– Both TDSA and Quick Fire enabled (either initiates
fire alarm).
Time Domain Signal Analysis (TDSA)
The TDSA signal processing technique analyzes the
input signal in real time, requiring the IR signal to flicker
randomly in order to recognize it as a fire condition.
Using TDSA signal processing, the X9800 ignores
regularly chopped blackbody sources (occurring in areas
where moving conveyors and hot objects in proximity
to one another result in a regularly chopped IR signal),
because it looks for a less uniform signal. However, in the
presence of a regularly chopped signal, the detector may
be more susceptible to false alarms due to sporadic IR
that functions as a trigger when occurring in conjunction
with the regularly chopped signal.
Quick Fire (High Speed)
The Quick Fire (High Speed) feature can be used in
conjunction with the TDSA signal processing method.
This method overrides TDSA requirements in the event
of a sudden and intense signal, such as the result of a
flash fire. When Quick Fire is activated, the detector is
capable of responding to an intense fire signal in less
than 30 milliseconds (0.030 seconds). Using the Quick
Fire feature in conjunction with TDSA signal processing
allows the detector to provide a high speed response to
a large, non-flickering fire (such as in high pressure gas
applications). Additionally, when the Quick Fire feature
and TDSA signal processing are used in conjuction, the
detector maintains an ability to respond to fires that start
very small and grow in size and intensity over time.