Arton DL Manual do utilizador - Página 4
Procurar online ou descarregar pdf Manual do utilizador para Alarme de fumo Arton DL. Arton DL 8 páginas. Waterproof linear optical smoke detector
Imprimir página- bright flashes of the right indicator and low brightness flashes of the left indicator
every 1 sec when low level of optical signal has been detected;
- 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 from «1» to «0» 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.
7.2.11 Set the CALIBRATION switch on the receiver unit to «0» position. The left
indicator on the receiver should flash with low brightness every 1 sec. The right indicator of the
receiver should be off.
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, 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 time the current consumption will increase by 25±5 mA which
the control panel will interpret as a SHORT-CIRCUIT 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 5 sec
the partition will not be removed out of the sensitive zone, the detector will go to the fire mode.
7.3.3 Remove the partition from the sensitive zone and de-energize the loop for at least 5
sec.
7.3.4 Energize the loop. The standby mode will be set in 10 s.
7.3.5 Place the 1 dB optical attenuator for at least 15 sec in the in immediate proximity
(not greater than 2 cm) to the optical system window of the receiver. The detector shall remain in
the standby mode.