Multi-funtional duct sensor
For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systemsPREMASGARD® 814x-Modbus
Für jede Anwendung die richtige Lösung [Translate]
Patented quality product (patent no. DE 10 2014 010 719.1)
The maintenance-free microprocessor-controlled duct sensor AERASGARD® KLQ - SD with automatic calibration, housing with snap-on lid, is used for determining the air quality and the air quality based on a mixed gas sensor/VOC sensor. The measuring signals are converted into standard signals of 0 -10 V.
It is used
- For air quality measurement in offices, hotels, meeting rooms and convention centres, apartments, stores, and restaurants, etc.
- For quantitative evaluation of room air pollution with contaminating gases (cigarette smoke, body perspiration, exhaled breathing air, solvent vapours, emissions from building members and cleaning agents)
- For adjustable sensitivity regarding the maximum air contamination to be expected
- For room ventilation as-needed, enabled by air changes only taking place when air is polluted while conserving energy at the same time.
The sensor's service life depends on the type of burden and gas concentration and is more than 60 months under normal load conditions. The new design allows you to choose between three sensitivity ranges that are adjusted using DIP switches, giving you three measuring ranges: LOW for low, MEDIUM (default) for medium, and HIGH for high VOC sensitivity. VOC is the abbreviation for volatile organic compounds. According to the definition by the World Health Organization WHO, VOC are organic substances with a boiling range from +60 to +250 °C. Examples of VOCs include compounds of the substance groups alkanes/ alkenes, aromatic compounds, terpenes, halogenated hydrocarbons, esters, aldehydes, and ketones. There is a large number of naturally occurring VOCs, some of which are also released into the atmosphere in substantial quantities, e.g. terpenes and isoprene from forests. For more information, please refer to beginning of this chapter.
|Voltage supply||24 V AC/ DC (± 10 %)|
< 1.5 W/ 24 V DC typical;
< 2.9 VA/ 24 V AC typical;
peak current 200 mA
|Service life||> 60 months|
|Measuring accuracy||± 20 % of final value (referred to calibrating gas)|
|Gas exchange||by diffusion|
|Relay output||without changeover contact|
|Warm up time||approx. 1 hour|
approx. 1 minute,
minimum flow rate 0.2 - 0.5 m/s
(0 V = clean air, 10 V = polluted air)
0 -10 V (fixed)
VOC sensor (metal oxide) (VOC = volatile organic compounds),
with manual calibration (via zero button),
with automatic calibration (fixed)
0...100 % air quality; referred to calibrating gas;
multi-range switching (selectable via DIP switches)
VOC sensitivity low, medium, high
|Ambient temperature||–10...+60 °C|
by mounting flange, plastic
(included in the scope of delivery)
PLEUROFORMTM, material polyamide (PA6), with torsion protection,
Ø 20 mm, NL = 202.5 mm, vmax = 30 m/s (air)
|Electrical connection||0.14 - 1.5 mm² via terminal screws|
material polyamide, 30 % glass-globe-reinforced
colour traffic white (similar to RAL 9016)
ALTF 02 with snap-on lid,
|Housing dimensions||72 x 64 x 37.8 mm (Tyr 01)|
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
|Protection class||III (according to EN 60 730)|
|Protection type||IP 43 (according to EN 60 529)|
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
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