Det-Tronics X9800 IR Flame Detector User Manual

Page 17

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

Plate Removal and Replacement procedure.

Important

When used in extreme environments, the reflective
surface of the detector

plate may eventually

deteriorate, resulting in reoccurring

faults and

the need for

plate replacement.

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

reflector plate without also

recalibrating the

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—

plate removal