Atest Gaz Alpa EcoWent XT, Руководство пользователя

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check the correctness of the electrical connections and the setting of the configuration switch,
turn on the power supply of the system. All detectors should start warm-up, which is indicated by
the cyclic flashing of the indicator lights. In this state, the channels of the control unit used by the
detectors should indicate work. After about 40 seconds, all the sensors and the control unit should
indicate the status of OPERATION (with the assumption that the air is free of an agent that could
cause a reaction of the detector),
conduct the test of the sensor operation by pressing and holding the TEST button located inside
the detector (see Figure 2) until the control unit signals ALARM. Pressing the TEST button should
cause the ALARM on the checked detector and control unit,
with pressed TEST button (all detectors show the status of ALARM) conduct the measurement of
voltage on the most remote detector. The voltage cannot be lower than the minimum voltage of
power supply to the detector (see Table 6). A too low value indicates an inappropriate selection of
the conductor cross-section or too low voltage of the power supply to the system,
it is recommended to conduct the reaction of the detectors with a span gas,
the test of operation should be conducted for each detector,
if the system does not work properly, it is necessary to check the correctness of connections or
contact the manufacturer,
the condition for admitting the system to use is conducting all the inspection operations with
a positive result.
9.4 Periodical operations
During the operation of the gasometric system, it is necessary to be aware of the fact that the detectors
– and most of all the sensors – are components susceptible to aging and environmental impacts. Therefore,
the maintenance process must be performed systematically.
These operations may be conducted by trained services only, in accordance with the art, general safety
principles and special installation conditions.
The periodic operations include:
periodic inspections,
calibration of detectors.
9.4.1 Calibration
During the operation of the system with Alpa EcoWent XT gas detectors, it is necessary to conduct periodic,
systematic inspections of operation. The gas detector applied in the device is an element vulnerable to
aging and environmental impacts, the natural effect of which is the decrease in its sensibility.
Calibration should be carried out once a year by a specialized facility. In order to compensate for this effect,
it is necessary to conduct a periodic calibration of the Alpa EcoWent XT gas detector, performed by an
authorized service of the manufacturer. The calibration process may be conducted in several ways:
disassembly and sending the complete detector to the manufacturer,
sending only the sensor plates to the manufacturer – the plate may be removed from the Alpa
EcoWent XT gas detector after opening the housing (see Figure 2) – prior to this operation, it is
absolutely necessary to turn off the power supply,
calling the manufacturer's authorized service provider who will perform the calibration at the
customer's.
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User Manual: POD-042-ENG R04