Atest Gaz Alpa EcoWent XT, User Manual

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5 User interface
The detectors have a function of signalling statuses by means of five LED indicators located on the side of
the housing (see Figure 2 and 3).
Indicators are grouped in two fields:
DETECTOR (information concerning the
detector),
BUS (information concerning the detector
connections).
Figure 3: User interface
Table 3 describes the way of signalling the states of the detector operation. Detailed description – see
Section 1.2.
State of the indicators Communicated information
Green (OK) – lights
D
ET
EC
TO
R
The detector works properly, gas concentration below the determined
thresholds
Yellow ( ) – lights Detector damage
Red (ALARM) – blinking Exceeded warning threshold 1
Red (ALARM) – blinking Exceeded warning threshold 2
Red (ALARM) – lights Exceeded alarm threshold
Yellow ( X1) – lights
BU
S
Bus failure (interruption), not allowed current values – see also
Section 8
Yellow ( X2) – lights Improper connection of the Alpa EcoDet XT detector – see also
Section 8
Cyclic flashing of all indicator lights Warm-up
Table 3: Indication of operating conditions
6 System architectures
Detectors can be connected in two ways:
star system (traditional) or,
into a serial "bus" arrangement (alarm loop) – open or closed.
Systems can be built of single Alpa EcoWent XT detectors or pairs (Alpa EcoWent XT along with the Alpa
EcoWent XT detector).
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User Manual: POD-042-ENG R04
Information concerning
the detector)
Information concerning
the detector connections