KLQ-W

AERASGARD® KLQ-W

Item No. 1501-3150-7301-200
EAN 4 251325 613093

Patented quality product (patent no. DE 10 2014 010 719.1)

The maintenance-free microprocessor-controlled duct sensor AERASGARD® KLQ - W with automatic and manual calibration, housing with quick-locking screws, is used for determining the air quality or the air quality based on a mixed gas sensor/VOC sensor. The measurement signals are converted into standard signals of 0 -10 V or 4...20 mA.

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.

196,86 € net
Voltage supply 24 V AC/ DC (± 10 %)
Power consumption < 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
with potential-free changeover contact (24 V / 1 A),
switchpoint adjustable
Warm up time approx. 1 hour
Response time approx. 1 minute,
minimum flow rate 0.2 - 0.5 m/s
Output (0 V = clean air, 10 V = polluted air) 
0 -10 V  or  4...20 mA,  working resistance  < 800  Ω
(selectable via DIP switches) 
with offset potentiometer (± 10 % of the measuring range
Sensor
VOC sensor (metal oxide) (VOC = volatile organic compounds),
with manual calibration (via zero button),
with automatic calibration (can be deactivated via DIP switches)
Measuring range 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
Process connection by mounting flange, plastic
(included in the scope of delivery)
Protective tube 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
Housing plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
Housing dimensions 72 x 64 x 37,8 mm (Tyr 1)
Cable gland 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 65 (according to EN 60 529) housing only!
Standards CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU