Atest Gaz Alpa MOD LED8, Руководство пользователя

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pressing MEMORY will display the contents of the memory on the front panel, which will be
signalled by the MEMORY indicator lamp lighting continuously,
Pressing CONFIRM / CLEAR for 5 seconds allows to erase the memory,
pressing the MEMORY key again will return to displaying the current status.
6 Life cycle
6.1 Transport
The device should be transported in the same way as new devices of this type. If the original box or another
protection (e.g. corks) is not available, it is necessary to secure the device against shocks, vibrations and
moisture on one's own, using other equivalent methods.
Transport of the device should be carried out under the environmental conditions described in the table 6.
6.2 Installation
6.2.1 Control unit and buffer power supply
The control unit with power supply and the battery must be installed in the control cabinet on DIN 35 rail or
placed in a junction box in a place accessible for authorized staff, though as far as possible so as to hinder
unauthorized access. Avoid locations with high humidity. Assembly height – approximately 170 cm above
ground level.
If the connection was made with the use of multi-wire cables (commonly known as a "cord"), the ends of
these connectors should be ended with clamp sleeves.
If there is a need to connect two conductors in one terminal of the device, the only allowable option is to
connect them in a common clamping sleeve (details are provided in table 6).
6.2.2 Installing gas detectors
The following describes the rules of location of the most popular gas detectors. Details are contained in the
gas detector user manual.
Natural gas (NG)
These Gas Detectors should be deployed on the ceiling of the protected area or its vicinity (not less than
approx. 40 cm. from the ceiling) so that the horizontal distance from any given point of the protected area
on the ceiling to the Gas Detector does not exceed 8 meters, assuming no mechanical obstruction between
the source of emissions and the gas detector. In the case of sensors mounted on the wall, they should be
directed measuring side downwards.
Placement and installation of gas detectors:
the gas detectors should be placed on the expected route of gas from the source of emissions to
the ventilation grill,
if part of the ceiling is separated from the rest of the boiler room by a divider higher than approx.
20 – 40 cm – it is recommended to install a separate gas detector for that part,
the gas detectors should not be installed directly above the boiler, because hot air warmed by will
result in "ventilating" methane out in the vicinity of the gas detector,
on a connecting cable directly before the entry to the gas detector housing, it is recommended to
make a loop or a "U" so that the water condensing on the pipe or dripping from the ceiling does
not drain to the gas detector,
for reliability reasons, it is recommended to use at least two gas detectors.
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User Manual: POD-006-ENG R03