Det-Tronics X3302 Multispectrum IR Flame Detector with Pulse Output User Manual

Page 8

95-8578

6.1

DETECTOR ORIENTaTION
Refer to Figure 2 and ensure that the

plate will be

oriented as shown when the X3302 is mounted and

sighted. This will ensure proper operation of the

system and will also minimize the accumulation of

moisture and contaminants between the

plate and the

viewing windows.

Important

If removed, the

plate must be securely

tightened to ensure proper operation of the

system (40 oz./inches [28.2 N .cm] recommended).

pROTECTION agaINST MOISTURE DaMagE
It is important to take proper precautions during

installation to ensure that moisture will not come in contact

with the electrical connections or components of the

system. The integrity of the system regarding moisture

protection must be maintained for proper operation and

is the responsibility of the installer.

If conduit is used, we recommend installing drains,

according to local codes, at water collection points to

automatically drain accumulated moisture. It is also

recommended to install at least one breather, according

to local codes, at upper locations to provide ventilation

and allow water vapor to escape.

Conduit raceways should be inclined so that water will

flow to low points for drainage and will not collect inside

enclosures or on conduit seals. If this is not possible,

install conduit drains above the seals to prevent the

collection of water or install a drain loop below the

detector with a conduit drain at the lowest point of the

loop.

Conduit seals are not required for compliance with

explosion-proof installation requirements, but are highly

recommended to prevent water ingress in outdoor

applications. Units with M25 threads must use an IP66/

IP67 washer to prevent water ingress.

WIRINg pROCEDURE
Wire Size and Type
The system should be wired according to local codes.

The wire size selected should be based on the number

of detectors connected, the supply voltage, and the

cable length. Typically 16 AWG or 2.5 mm

shielded

cable is recommended. Wires should be stripped

3/8 inch (9 mm). In some cases where the X3302 is

replacing existing pulse output detectors, the wiring

and power supplies may not be adequate. Consult the

factory for assistance.

Important

A minimum input voltage of 18 Vdc must be
present at the X3302.

The use of shielded cable is required to protect against

interference caused by EMI and RFI. When using cables

with shields, terminate the shields as shown in Figures 6

through 10. Consult the factory if not using shielded cable.

The “B” (pulse output) and “D” (

driver) leads from

each detector should be shielded from the “B” and

“D” leads of all other detectors in order to prevent

false alarms resulting from crosstalk between zones.

It is recommended that the “A” and “C” leads also be

shielded to provide maximum immunity to EMI/RFI. (See

Figures 6 to 10.)

In applications where the wiring cable is installed in

conduit, the conduit must not be used for wiring to other

electrical equipment.

If disconnection of power is required, separate disconnect

capability must be provided.

CaUtIon

Installation of the detector and wiring should be
performed only by qualified personnel.

Detector Mounting
Install the mounting arm assembly on a rigid surface.

The ideal installation surface should be free of vibration

and suitable to receive 3/8 inch or M10 bolts with a

length of at least 1 inch (25 mm). The surface must

also have sufficient capacity to hold the detector and

mounting arm weights (see “Specifications” section).

Refer to the Q9033 Mounting Arm and Collar Attachment

manual (95-8686) for additional mounting information.

See Figure 3 for dimensions.

figure 2—front View of the X3302

VIEWING WINDOW (3)

oi PLATE

PLACE MAGNET

HERE TO INITIATE

MAGNETIC

oi MAGNET

DETECTOR

STATUS INDICATOR

F2068