Detail Duct Air Quality Sensors SIEMENS
? With maintenance-free CO2 sensing element based on optical infrared absorption
measurement ( NDIR1)
? and ? depending on the type of sensor ? VOC2) sensing element, based on a
heated tin dioxide semiconductor
? CO2 temperature and CO2 humidity-temperature multisensor
? No recalibrations required
? Operating voltage AC 24 V or DC 15? 35 V
? Signal outputs DC 0...10 V
In air ducts of ventilation and air conditioning plant to enhance room comfort and to
optimize energy consumption by providing demand-controlled ventilation. The sensor
acquires:
? CO2 concentrations
? VOC concentrations as an indication of odors in the duct air, such as tobacco smoke,
body odor, or material fumes
? The relative humidity of the duct air
? The duct air temperature
The QPM21? can be used as a:
? Control sensor in the supply or extract air duct
? Transmitter for building automation and control systems and / or display units
Typical use:
? Acquisition of CO2 and VOC concentrations:
In party rooms, lounges, fair pavillions and exhibition halls, restaurants, canteens,
shopping malls, sports gymnasiums, sales rooms, and conference rooms
? Acquisition of CO2 concentrations:
In ventilation plant of rooms with varying occupancy levels where smoking is prohibited, such as museums, theatres, movie theatres, auditoriums, office spaces and
school rooms
? The QPM21? sensors are not suited for use as safety devices, such as gas or
smoke warning devices!
? The sensors must not be used outdoors!
Type reference CO2 measuring range VOC sensitivity Temperature measuring range Humidity measuring range Measured value display
QPM2100 0? 2000 ppm --- --- --- no
QPM2102 0? 2000 ppm low ( R1) Normal ( R2) High( R3) --- --- no
QPM2102D 0? 2000 ppm low ( R1) Normal ( R2) High( R3) --- --- yes
QPM2160 0? 2000 ppm --- 0...50 C / 35...+ 35 C --- no
QPM2160D 0? 2000 ppm --- 0...50 C / 35...+ 35 C --- yes
QPM2162 0? 2000 ppm --- 0...50 C / 35...+ 35 C 0---100% no
QPM2162D 0? 2000 ppm --- 0...50 C / 35...+ 35 C 0---100% yes
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