10 deg. Max
10 M -Type 1 Reflector
30 M -Type 2 Reflector
Functional Description
Initialisation:
When the detector is switched on, its
LED indicator blips on to signify power
up. During the first 10 seconds the
detector performs auto calibration to
establish the quiescent obscuration level.
Please note:
It is important that the
beam path is cleared to a healthy state
(no obscuration) prior to resetting the
detector. If the beam path is not healthy,
the detector will recalibrate to the
current level of obscuration in turn
reporting false alarm/fault conditions as
the path clears. If obscuration is high (dir-
ty lenses or oil/smoke is present) then
the detector will not be able to establish
operational state and will report a clean
fault (LED pulses on for 4 sec) or a life
fault (LED is illuminated continuously).
The P-UIM will latch the fault condition
and the detector/P-UIM will require
resetting .
Alarm Level Detection:
The detector monitors the obscuration
level within the beam path and when it
detects a loss of 0.5 dB it latches a low
level alarm condition. If the loss is
maintained within the 0.5 to <1.5 dB
band during the subsequent 15 second
alarm monitoring period, a low level
alarm will then be reported (LED will
pulse On/Off for 30 seconds). If the loss
exceeds 1.5 dB then a high level alarm is
latched and this status will be reported
(LED pulses On/Off for 2 minutes) at the
earliest 8 seconds from the beginning of
the alarm monitoring period. If the high
level occurs subsequent to the initial 8
second of the alarm monitoring period
and before a total of 15 seconds has
elapsed, the high level alarm will be
latched and reported immediately. Please
Note: If the level of loss during the alarm
condition monitoring period falls below
0.5 dB, the latched alarm level will reset
and the detector will continue to monitor.
Beam Block:
If the level of obscuration increases
suddenly to a high level of loss a beam
blocked status will be latched and if the
level is maintained for 60 seconds, Beam
Blocked will be reported (LED flashes ON
for 2 seconds). If the beam blocked level
of obscuration clears for more than a few
seconds during the 60 second period
monitoring period, the detector will
return to its normal operating state.
Dual Automatic Compensation:
The detector automatically compensates
for gradual detector lens contamination
and also compensates for the more rapid
environmental changes (eg. Temperature
Change). The detector will report a clean
fault (LED Flashes on for 4 seconds)
once. If the detector is not cleaned it will
continue to operate until a life fault is
detected (LED on steady) at which point
the detector latched to an off condition.
The detector must be cleaned and reset
once the life fault has been detected.
Installation Procedure
To install the detector, find an
unobstructed path, ideally above head
height that covers the area to be
monitored. When choosing the beam
path the direction of any prevailing air
currents should be noted to assess the
direction that any oil mist would be
conveyed.
It should be noted that the beam must
not be within 500 mm of any wall or
partition. The operating range is 2-50
metres.
The reflector sheet must be mounted on
a flat surface (self adhesive backing) such
that the detector and reflector are
aligned horizontally and vertically. To
assist in this procedure a tool is available
(01-33-21) to ensure the detector beam is
focused centrally on the reflector. The
alignment tool intensifies the IR beam &
converts its image to visible light. Due to
the nature of operation of the alignment
tool, it is recommended that it should
used in subdued light conditions. The
physics of the reflector construction,
enable the reflector to be up to 10
degrees out of alignment in any one
plane as detailed in the following
diagram:
IR Oil Mist/Smoke Detector
IR6003/7
PSF330JC_Time_Saver_Mount.indd 2
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