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Twisted pair cables are required for the secondary supply lines and the signal lines.
Mounting
●
The sensor is suitable for conduit box mounting, dry wall mounting (with mounting hole
for wires concealed) and surface mounting.
●
The recommended height is 5 ft (150 cm) above the floor, especially for type with
display.
●
Do not mount the sensor in recesses, shelves, behind curtains or doors, or above heat
sources.
●
Avoid direct solar radiation.
●
Seal the conduit box or the installation tube if any, as air currents can affect sensor
readings.
●
Make sure ambient conditions are within 32 to 122°F (0 to 50°C)/5 to 95% r.h. (no
condensation).
●
Do not mount device in places full of oily smoke, for example, in a kitchen.
●
Peel off the protective film on air inlet and air outlet before using.
●
The air inlet and outlet must be free of any blockage.
Proximity sensor
●
The QSA2700D includes a built-in proximity sensor and enters into energy efficient mode
if no obstacle is detected in front of the sensor (within 3 feet [1 m] for several minutes). In
energy efficient mode, the screen is off and the sensor is working and transmitting the
signals at regular intervals. Otherwise, the screen is activated and the sensor is in
continuous working mode.
●
The QSA2700 does not have a proximity sensor and is working continuously.
●
Keep the proximity sensor area clean as dirt may affect the detection performance.
Replacing the AQS2700
Sensor module accuracy is influenced by ambient environment. Replace the module every 1
to 3 years depending on the local environment. In environments with continuously high
PM2.5 concentrations (that is greater than 300 μg/m
the module more often.
To replace the sensor module:
1. Detach the housing from the mounting plate using a flat-blade screwdriver.
6
Siemens
Smart Infrastructure
3
, for example, a smoking room), replace
A6V11396712
2020-08-17
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