Duct Mounting Air Quality Sensor, Selectable Output 0/10Vdc or 4-20mA




The self-calibrating microprocessor-controlled duct air quality sensor is used to determine the air quality on basis of a mixed gas sensor ⁄ VOC sensor.

It is used to measure the air quality for quantitative evaluation of room air pollution with contaminating gases.

The air quality sensor does not trace concentrations of individual gases, but assesses the mixed gas concentration.

Detectable gases: mixed gas, vapours of VOCs, cigarette smoke, automobile exhaust gases, human exhalation, combustion smoke (from wood, paper, plastics).

The sensor‘s lifetime depends on the type of burden and gas concentration.



Power Supply:                            24V AC / DC (± 10%)

Power Consumption:             < 1.5W / 24V DC typical

 < 2.9VA / 24V AC typical

 Peak Current 200mA

Sensor:                                             VOC sensor (metal oxide), with automatic

  self-calibration (VOC = volatile organic


Measuring Range:                       0…100% air quality; referred to calibrating gas;

   multi-range switching (selectable via DIP switches)

   VOC sensibility low, medium, high

Output:                                               0 – 10V (OV = clean air, 10V = contaminated air) or

    4…20mA (selectable via DIP switches; switch point

    adjustable from 0…100% of output signal).

Measuring Accuracy:                 ± 20% of final value (referred to calibrating gas)

Service Life:                                     > 60 months

Gas Exchange:                                By diffusion

Warm-up Time:                             Approx. 1 hour

Ambient Temperature:             -10…+60˚C

Response Time:                              Approx. 1 minute, minimum flow rate 0.2 – 0.5m/s

Electrical Connection:                0.14 – 1.5mm², via terminals

Enclosure:                                           Plastic, material polyamide, 30% glass-globe-

      reinforced, with quick-locking screws

      (slotted / Phillips head combination),

      colour traffic white (similar to RAL 9016)

Enclosure Dimensions:               72 x 64 x 37.8mm (Tyr 1 without display)

Cable Gland:                                      M 16 x 1.5, including strain relief, exchangeable,

       max. inner diameter 10.4mm

Protective Tube:                              Pleuroform™, material polyamide (PA6),

       with torsion protection, Ø 20mm, NL = 202.5mm

       Vmax = 30m/s (air)

Process Connection:                     By mounting flange, plastic (included in the

        scope of delivery)

Protection Class:                              III (according to EN 60730)

Protection Type:                               IP 65 (according to EN 60529)

Standards:                                            CE conformity, electromagnetic compatibility

                       according to EN 61 326, EMC Directive 2014 /

        30 / EU

Weight 30 g
Specification Guide