Arton ARTON-DL Benutzerhandbuch - Seite 5
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Seite drucken‐ bright flashes of both indicators every 0.5 sec when adjustment of the receiver
and transmitter has been made incorrectly
‐ flashes at different intervals (0.5 sec and 2 sec), and a control panel will fix
open‐circuit in alarm loop when the electric connection between the receiver and
transmitter is absent.
7.2.4 If the optical signal level is high it is necessary to attain the normal signal
level by slowly turning the calibration regulator counter‐clockwise. It is allowed to change
the RANGE switch's position if necessary.
7.2.5 If the optical signal level is normal it is necessary to set the high level of signal
slowly turning the calibration regulator clockwise
and then to set again the normal level of signal slowly turning the calibration
regulator counter‐clockwise.
7.2.6 If the optical signal level is low it is necessary:
‐ set the normal level of signal turning the sensitivity adjustment screw clockwise;
‐ set the high level of signal turning the sensitivity adjustment screw clockwise;
‐ set the normal level of signal turning the sensitivity adjustment screw counter‐
clockwise.
When the normal or high signal level can not be set with the sensitivity adjustment
screw, it is necessary to check the RANGE switch position and mechanically adjust the
receiver and transmitter again.
7.2.7 Attain the optimal coaxiality of the optical system windows' axes of the
receiver and transmitter, when any their deviation in horizontal and vertical planes only
leads to optical signal level decrease. Return the unit to the position corresponding to
normal signal level.
7.2.8 If any deviation of the receiver or transmitter leads to optical signal level
increase, it is necessary to fix the unit's position, to set the normal signal level with the
calibration regulator. Then repeat the previous action.
7.2.9 Tighten attachment screws of the receiver and transmitter to brackets. The
status of the receiver's indicators should not change.
7.2.10 Calibrate the detector attaining the normal signal level, turning the
calibration regulator counter‐clockwise and set it to the position near the indicators'
switch from the normal signal level mode to the low one.
7.3 Verification of fire alarm system
7.3.1 De‐energize the loop for not less than 5 s. After power supply was restored in
not more than 10 s the detector shall go to the standby mode of operation.
7.3.2 Obscure infrared beam between the receiver and transmitter with a partition
which is opaque for infrared light. In 5 sec after the fixation of the partition the left
indicator of the receiver will turn on for about 5 sec. During this period the current
consumption will increase by 25±5 mA which the control panel will interpret as a FAULT
message. If the power of the loop will be off then in 5 sec the detector will automatically
go to the standby mode. If within the next 10 sec the partition will not be removed out of
the sensitive zone, the detector will go to the fire mode. The current consumption will
increase by 8±1,6 mA in the fire mode, and the left indicator shall pulse with low
brightness and frequency 1±0,1 Hz.
7.3.3 Remove the partition from the sensitive zone and de‐energize the loop for at
least 5 sec.