Det-Tronics X9800 IR Flame Detector - Manual (Page 17)

15 95-8554 11.1
NOTE
Refer to the X9800 Safety manual (95-8672) for
specific requirements and recommendations
applicable to the proper installation, operation,
and maintenance of all SIL-Certified X9800 Flame
Detectors.
To maintain maximum sensitivity and false alarm
resistance, the viewing windows of the X9800 must be
kept relatively clean. Refer to the following procedure for
cleaning instructions.
CLEANINg pROCEDuRE
CaUtIon
Disable any extinguishing equipment that is
connected to the unit to prevent unwanted
actuation.
To clean the windows and oi plate, use Det-Tronics'
window cleaner (p/n 001680-001) and a soft cloth, cotton
swab or tissue and refer to the following procedure:
1. Disable any extinguishing equipment that is
connected to the unit.
NOTE
Remove input power when cleaning the detector
windows. The rubbing motion on the surface of
the windows during cleaning can create static
electricity that could result in unwanted output
activation.
2. Clean the viewing window and reflective surfaces
of the oi plate using a clean cloth, cotton swab or
tissue, and Det-Tronics' window cleaning solution.
Use Isopropyl alcohol for contaminations that the
Det-Tronics window cleaning solution can not
remove. If a fault condition is still indicated after
cleaning, remove and clean the oi plate using the oi
Plate Removal and Replacement procedure.
Important
When used in extreme environments, the reflective
surface of the detector
oi plate may eventually
deteriorate, resulting in reoccurring oi faults and
the need for oi plate replacement.
oi
pLATE REMOVAL AND REpLACEMENT
1. Disable any extinguishing equipment that is
connected to the unit.
2. Loosen the two captive screws, then grasp the oi
plate by the visor and remove it from the detector.
See Figure 18.
3. Install the new (or cleaned) oi plate.
4. Recalibrate the detector's oi system. Refer to the
Inspector Monitor manual (95-8581) for instructions
regarding oi plate replacement and oi system
recalibration.
CaUtIon
Do not replace the oi reflector plate without also
recalibrating the oi system.
Recalibration of the oi system requires the use of the
Inspector Connector Cable and Inspector Monitor
Software. These two items are included in the oi
replacement kit, or they can be purchased separately.
See Ordering Information for details.
pERIODIC CHECkOuT pROCEDuRE
In compliance with SIL 2, a checkout of the system using
the Mag oi or Man oi feature should performed regularly
to ensure that the system is operating properly. Refer
to Table 1 in the X9800 Safety manual (95-8672) for
frequency of proof tests. To test the system, perform the
“Fire Alarm Test” as described in the “Startup Procedure”
section of this manual.
CLOCk bATTERy
The real time clock has a backup battery that will
operate the clock with no external power. Return the
device to the factory for battery replacement if needed.
NOTE
If the backup battery is depleted, there is no effect
on the operation of the flame detector, but the time
stamping of the data log may be affected.
LOOSEN TWO CAPTIVE SCREWS
GRASP VISOR AND
REMOVE
oi PLATE
B2175
figure 18—
oi
plate removal