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

Page 17

Advertising
background image

15

95-8578

6.1

4. Press and hold the TEST button. The DETECTOR/

ZONE display indicates the counts per second (cps)

received from the detector. If the counts per second

exceeds 99, the FIRE LOGIC LEDs are illuminated to

indicate that the number shown on the display must

be multiplied by 10. The normal reading for an

oi

test is 80 to 110 cps. For a live fire test, 270 - 330
cps will be generated.

A zero reading may indicate a dirty window,

oi

problem,

faulty detector or defective wiring.

Release the Test button, the ZONE and DETECTOR

display should drop to a reading of 0 to 1 counts per

second.

FIRE aLaRM TEST (pulse Output to Fire alarm panel)
1. Disable any extinguishing equipment that is

connected to the system.

2. Apply input power to the system.
3. Initiate a live fire test or a Mag

oi

test (see “Magnetic

oi

/ Manual

oi

” under “Optical Integrity” in the

Description section of this manual).

4. Repeat this test for all detectors in the system. If

a unit fails the test, refer to the “Troubleshooting”

section.

5. Verify that all detectors in the system are properly

aimed at the area to be protected. (The Q1201C

Laser Aimer is recommended for this purpose.)

6. Enable extinguishing equipment when the test is

complete.

TROuBLESHOOTING

WarnIng

The sensor module (“front” half of the detector)
contains no user serviceable components
and should never be opened. The terminal
compartment is the only part of the enclosure that
should be opened by the user in the field.

1. Disable any extinguishing equipment that is

connected to the unit.

2. Inspect the viewing windows for contamination

and clean as necessary. The detector is relatively

insensitive to airborne contaminants, however, thick

deposits of ice, dirt, or oil will reduce sensitivity.

(Refer to the “Maintenance” section for complete

information regarding cleaning of the detector

viewing windows.)

3. Check input power to the unit.
4. Check system and detector logs.
5. Turn off the input power to the detector and check all

wiring for continuity. Important: Disconnect wiring

at the detector before checking system wiring for
continuity

.

6. If all wiring checks out and cleaning of the

oi

plate/

window did not correct the fault condition, check for

high levels of background IR radiation by covering

the detector with the factory supplied cover or

aluminum foil. If the fault condition clears within 6

minutes or less, extreme background IR is present.

Re-adjust the view of the detector away from the IR

source or relocate the detector.

If none of these actions corrects the problem, return the

detector to the factory for repair.

NOTE

It is highly recommended that a complete spare
be kept on hand for field replacement to ensure
continuous protection.

NOTE

For additional troubleshooting guides, refer to the
Flame Inspector Monitor manual (95-8581).

Advertising