Technical Data - S+S Regeltechnik Aerasgard Rlq-Co2 Bedienungs- Und Montageanleitung

G
®
AERASGARD RLQ - CO
The maintenance-free, microprocessor-controlled AERASGARD
the air quality regarding VOC and the CO
with snap-on lid, base with 4-hole attachment for installation on vertically or horizontally
installed in-wall flush boxes, with predetermined breaking point for on-wall cable entry, or in
enclosures made of stainless steel (top and bottom part are of stainless steel, the lid is
screwed on), vandalism-secure version e.g. for schools, military barracks, and public buildings.
The CO content of air is determined by an optical NDIR sensor (non-dispersive infra-red
2
technology). The detection ranges of these sensors are calibrated for standard applications
such as monitoring of residential rooms or conference rooms. Room ventilation on an
as-needed basis, improvement of well-being and customer benefit, increased comfort as well
as a reduction of operating costs by energy conservation are just some of the benefits of
®
employing AERASGARD RLQ-CO
The new design allows you to choose between three sensitivity ranges for VOC monitoring by
means of DIP switches, comparable to three measuring ranges: LOW for low, MEDIUM (default,
equivalent to the hitherto existing type of this device) for medium, and HIGH for high VOC
sensibility. In addition, three measuring ranges were introduced for CO
The selection between the measuring ranges 0...2000 ppm (default), 0...5000 ppm, and
0...10000 ppm is likewise enabled via DIP switches. The above explanations demonstrate that
there are applications for CO measurement, for VOC measurement, but from our perspective,
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above all, for a combination of both measurands. The crucial factor in this respect is that both
of these measurands are not convertible into each other and derivations to or from one
another cannot be made. A NDIR CO
detect any VOC, a VOC mixed gas sensor cannot recognize CO
tion, please refer to the beginning of this chapter.

TECHNICAL DATA

Power supply:
Average power consumption:
AIR QUALITY (VOC)
Air quality sensor:
Measuring range:
Output, air quality:
Measuring accuracy VOC:
Service life:
CARBON DIOXIDE (CO )
2
CO sensor:
2
Measuring range, CO :
2
Output CO :
2
Measuring accuracy CO :
2
Pressure dependence:
Temperature dependence:
Long-term stability:
Gas exchange:
Warm-up time:
Ambient temperature:
Response time:
Electrical connection:
Enclosure:
Dimensions:
Installation:
Protection class:
Protection type:
Standards:
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content in air. Elegant enclosure made of plastic,
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sensors.
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measuring instrument measures selectively and cannot
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2
24 V AC ⁄ DC
< 3 VA at 24 V DC
VOC sensor (metal oxide) with automatic calibration
(VOC = volatile organic compounds)
0...100 % air quality referred to calibrating gas,
multi-range switching (selectable via DIP switches)
VOC sensibility: LOW – MEDIUM – HIGH
0 - 10 V (0 V = clean air, 10 V = polluted air)
or with potential-free changeover contact (24 V)
± 20 % of final value (referred to calibrating gas)
> 60 months (under normal load conditions)
optical NDIR sensor (non-dispersive infra-red technology),
with automatic self-calibration
multi-range switching (selectable via DIP switches)
0 ... 2000 ppm; 0 ... 5000 ppm; 0 ... 10000 ppm
0 - 10 V or with potential-free changeover contact (24 V)
± 70 ppm plus 5 % of measured value
± 1.6 % ⁄ kPa (referred to standard pressure)
< 5 ppm ⁄ K (referred to +20 °C)
± 1 % of final value per year
by diffusion
approx. 1 hour
+5...+50 °C
approx. 1 minute
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0.14 - 1.5 mm , via screw terminals
plastic, material ABS, colour pure white (similar to RAL 9010), stainless steel enclosure optional
98 x 98 x 33 mm (Baldur 2)
97 x 97 x 25 mm (stainless steel)
wall mounting or on in-wall flush box, Ø 55 mm, base with 4-hole for mounting on vertically or horizontally
installed in-wall flush boxes for cable entry from the back, with predetermined breaking point for on-wall cable entry
from top ⁄ bottom in case of plain on-wall installation
III (according to EN 60 730)
IP 30 (according to EN 60 529)
CE-conformity, electromagnetic compatibility according to EN 61 326, EMC directive 2004 ⁄ 108 ⁄ EC,
low-voltage directive 73 ⁄ 23 ⁄ EEC
® RLQ - CO is used to detect
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content measurement.
2
molecules. For more informa-
Connecting diagram
UB+ supply voltage 24 V AC/DC
1
2 UB- GND
3 Output 0-10V CO
2
4 Output 0-10V air quality (VOC)
Connecting diagram
1 UB+ supply voltage 24 V AC/DC
2 UB- GND
3 Output 0-10V CO
2
4 Output 0-10V air quality (VOC)
5
Normally
open contact
6
7
Breaker
Schematic diagram
CO Sensor
2
Switching
threshold
adjustment
min. max.
(RLQ-CO -W)
2
5
1 2 3 4
CO range
2
ON
1 2 3 4
Rev. 2016 - V20 GB
RLQ - CO
2
-content n ppm
RLQ - CO - W
2
-content n ppm
changeover
(24 V)
RLQ - CO
2
RLQ - CO - W
2
CO rang
2
Function
ON
switch
1 2 3 4
CO / VOC
2
VOC
sensibil
6 7
ON
VOC
Sensor
VOC
1 2 3 4
sensibility
Funktion Function
ON
switch switch
CO CO / VOC / VOC
1 2 3 4
2 2