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

Page 5

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6.1

During the entire test, the detector gives no indication of

alarm.

To reset the controller status and alarms, place the

keylock switch in Reset. Return the keylock switch to

Normal when testing is complete.

The Man

oi

test is nearly identical to the Mag

oi

test,

except for the manner in which the test is initiated:

• Place the keylock switch on the controller (R7404/

R7494) in the TEST position.

• Press the SELECT button to select the appropriate

detector for test.

• Press the TEST/ACCEPT button to initiate the test.

Controller and detector responses are identical to the

Mag

oi

test described above.

To reset the controller status and alarms, place the

keylock switch in RESET. Return the keylock switch to

NORMAL when testing is complete.

NOTE

Refer to Appendix A for FM verification of the

oi

function.

COMMUNICaTION
The X3302 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.

DaTa LOggINg
Data logging capability is also provided. Status

conditions such as normal, power down, general and

oi

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 the Inspector Connector accessory or RS-485.

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 X3302 Flame Detector:
Very High, High, Medium, and 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 response times)

• Distance between the hazard and the flame

detector

Recommended sensitivity guidelines are as follows:
Very High:

Aerospace, Hydrogen Storage

High:

Fertilizer (indoor), Refrigerants,

Compressors, Battery Manufacturing

Medium:

General Duty, Fertilizer (outdoor),

Ammonia,

Refrigerants

Low:

Hydrogen Fueling Stations, Turbine

Enclosures

Additional information on X3302 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.

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