Data Sheet for Product

6
Siemens
A6V11160938_en
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_c
Smart Infrastructure 2019-04-10
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 1.2-1.5 m 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 0…50 °C and 5...95% r.h. (no condensation).
● Do not mount device in places full of oil smog, e.g. 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, particularly the floc type of dirt.
Proximity sensor
● QSA2700D includes a built-in proximity sensor and enters into energy efficient mode if
no obstacle is detected in front of the sensor (approximately 1 m) over the past few
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.
● QSA2700 has no proximity sensor and is working continuously.
● Keep the proximity sensor area clean as dirt may affect the detection performance.
Replacing AQS2700
Sensor module accuracy is influenced by ambient environment. We recommend to replacing
the module every 1 to 3 years depending on the local environment. In environments with
continuously high PM2.5 concentrations (i.e. greater than 300 μg/m
3
, e.g. a smoking room),
replace the module more often.
To replace the sensor module:
1. Detach the housing from the mounting plate using a screw driver.