Technical Data - S+S Regeltechnik AERASGARD AFTM- LQ-CO2 -Modbus Operating Instructions Manual

G
®
HYGRASGARD
Patented quality product (patent no. DE 10 2014 010 719.1)
The maintenance-free, microprocessor-controlled AERASGARD
Modbus connection, with ⁄ without optional display, is designed for duct installation and is used to monitor all measurands of relevance to the climate
inside a room. These are the measurands air humidity, temperature, CO
all four measurands, it is possible to effectively monitor and regulate the entire room climate. It measures CO
one of three selectable sensitivity levels LOW / MEDIUM / HIGH, temperatures in the range of –35...+80 °C, as well as relative air humidity from
0...100 % r.H.
A digital, long-term stable sensor used as measuring element for relative air humidity and temperature guarantees exact measurement results. The
Modbus can be used to retrieve the following parameters: Temperature [°C], relative humidity [% r.H.], air quality (VOC) [%], carbon dioxide (CO
[ppm] and atmospheric pressure [hPa].
The CO content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology). The detection range of the sensors is
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calibrated for standard applications such as monitoring residential rooms and conference rooms. Room ventilation on an as-needed basis, improved
well-being and customer benefit, increased comfort as well as reduced operating costs through energy conservation are just some of the benefits of
®
employing the AERASGARD CO
The explanations above demonstrate that there are applications for CO
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. An NDIR CO
gas sensor cannot recognize CO

TECHNICAL DATA

Voltage supply:
Power consumption:
Data points:
HUMIDIT Y
Sensors:
Sensor protection:
Measuring range, humidity:
Operating range, humidity:
Deviation of humidity:
TEMPERATURE
Measuring range, temperature: –35...+80 °C
Operating range, temperature:
Deviation, temperature:
AIR QUALIT Y (VOC)
Sensor, VOC:
Measuring range, VOC:
Measuring accuracy, VOC:
Service life:
CARBON DIOXIDE (CO )
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Sensor, CO :
2
Measuring range, CO :
2
Measuring accuracy, CO :
2
Temperature dependence, CO
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Pressure dependence:
Long-term stability:
Gas exchange:
Bus protocol:
Signal filtering:
Ambient temperature:
Response time:
Electrical connection:
Housing:
Housing dimensions:
Cable gland:
Protective tube:
Process connection:
Protection class:
Protection type:
Standards:
Optional:
AFTM- ⁄ KFTM - LQ - CO
sensor.
2
molecules.
2
24 V AC ⁄ DC (± 10 %)
< 4.8 W ⁄ 24 V DC typical; < 6.8 VA ⁄ 24 V AC typical; peak current 200 mA
Temperature [°C], relative humidity [% r.H.], air quality (VOC) [%], carbon dioxide (CO
digital humidity sensor with integrated temperature sensor, low hysteresis, high long-term stability
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable (optional metal sinter filter, Ø 16 mm, L = 32 mm)
0...100 % r. H.
0...95 % r. H. (without dew formation)
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
–10...+60 °C
typically ± 0.2 K at 25 °C
VOC sensor (metal oxide) with automatic calibration (VOC = volatile organic compounds)
0...100 % air quality; referred to calibrating gas; multi-range switching VOC sensitivity low, medium, high
± 20 % of final value (referred to calibrating gas)
> 60 months (under normal load conditions)
optical NDIR sensor (non-dispersive infra-red technology) including atmospheric pressure compensation (up to 1100 mbar)
with automatic and manual calibration
0...5000 ppm
typically ± 30 ppm ± 3 % of measured value
: ± 5 ppm ⁄ °C or ± 0.5 % of measured value ⁄ °C (whichever is higher)
± 0.13 % ⁄ mm Hg
< 2 % in 15 years
by diffusion
Modbus (RTU mode), address range 0...247 selectable
4 s / 32 s
–10...+60 °C
< 2 minutes, minimal flow velocity 0.3 m/s (air)
0.2 - 1.5 mm 2 , ia push-in terminal
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 cover for display is transparent!
126 x 90 x 50 mm (Tyr 2)
2x M 16 x 1.5; including strain relief, exchangeable
PLEUROFORM TM
, material polyamide (PA6), with torsion protection, Ø 20 mm, v
without filter: NL = 202.5 mm / with plastic filter: NL = 235 mm (optional with metal filter: NL = 227 mm)
via mounting flange made of plastic (included in scope of delivery)
III (according to EN 60 730)
IP 65 (according to EN 60 529) housing only! (PLEUROFORM IP 30)
CE conformity, electromagnetic compatibility according to EN 61 326, EMC Directive 2014 ⁄ 30 ⁄ EU
Display with illumination, three-line, cutout approx. 70 x 40 mm (W x H), for displaying actual humidity,
actual temperature, air quality and the actual CO
or an individually programmable display value (The Modbus interface allows the display to be individually
configured in the 7-segment area and in the dot-matrix area.)
- Modbus
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® AFTM - LQ - CO - Modbus and KCO
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concentration as well as air quality (VOC). By using a single device to monitor
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measurements, for VOC measure ments, but from our perspective, above all,
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measuring instrument measures selectively and cannot detect any VOC; a VOC mixed
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content (cyclic) or a selectable parameter (static)
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14
Rev. 2019 - V23
⁄ KLQ - CO ⁄ KFTM - CO - Modbus with
2 2 2
in the range of 0...5000 ppm, VOC at
2
) [ppm], atmospheric pressure [hPa]
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= 30 m/s (air)
max
)
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