Det-Tronics X3301 Multispectrum IR Flame Detector with Pulse Output User Manual

Page 4

95-8528

11.1

OUTpUTS
Relays
The detector is furnished with fire and fault relays. The

relays are rated 5 amperes at 30 Vdc.

The Fire Alarm relay has redundant terminals and

normally open / normally closed contacts, normally

de-energized operation, and latching or non-latching

operation.

The Fault relay has redundant terminals and normally

open contacts, normally energized operation, and

latching or non-latching operation.

An alarm condition will normally over-ride a fault

condition, unless the nature of the fault condition

impairs the ability of the detector to generate or

maintain an alarm output, i.e. loss of operating power.

LED
A tri-color LED on the detector faceplate indicates

normal condition and notifies personnel of fire alarm

or fault conditions. Table 1 indicates the condition of the

LED for each status.

(OpTICaL INTEgRITy)

automatic

The X3301 includes the Automatic

feature — a

calibrated performance test that is automatically

performed once per minute to verify complete detector

operation capabilities. No testing with an external test

lamp is required. The detector automatically performs

the same test that a maintenance person with a test

lamp would perform — once every minute. However,

a successful Automatic

test does not produce an

alarm condition.

The X3301 signals a fault condition when less than half

of the detection range remains. This is indicated by the

Fault output and is evident by the yellow color of the

LED on the face of the detector. The

fault condition

is self-clearing if the optical contamination is temporary.

If the contamination is not automatically cleared and the

fault remains, the detector may require cleaning or

service. See the “Troubleshooting” section for further

information.

Magnetic

/ Manual

CaUtIon

These tests require disabling of all extinguishing
devices to avoid release resulting from a
successful test.

The detector incorporates both Magnetic

(Mag

)

and Manual

(Man

) test capabilities. These tests

provide pulses (80 to 100 CPS) to the controller (R7404

or R7494) when the detector is not in fault. If the test

is successful, the controller indicates a fire and the

appropriate zone output is active.

NOTE

If the detector is in a fault condition, a successful
Mag

or Man

test cannot be performed.

The Mag

test is initiated by placing a magnet at

the location marked “MAG OI” on the outside of the

detector (see Figure 2). This action causes the detector

to immediately send pulses to the controller. Controller

response is as follows:

• The Zone LED blinks.
• The digital display indicates which Zone is in alarm.
• The status indicator shows “6” (fire).

Important

Mag

can be performed with the controller’s

(R7404/R7494) keylock switch in either the
NORMAL or TEST position. In NORMAL, the
controller goes into alarm and activates its outputs.
If no controller alarm output is desired, place
the keylock switch in the TEST position before
touching the magnet to the outside of the detector.
Man

operates only with the keylock switch in

the TEST position.

Table 1—Detector Status Indicator

Detector Status

LED Indicator

Power On/Normal Operation

(no fault or fire alarm)

Green

Fault

Yellow

Fire (Alarm)

Red

Low Sensitivity

One Yellow Flash

During Power-up

T-Low Sensitivity

Three Yellow Flashes

During Power-up

Medium Sensitivity

Two Yellow Flashes

During Power-up

Very High Sensitivity

Four Yellow Flashes

During Power-up

NOTE: See "Detector Sensitivity Levels" for additional information .