S+S Regeltechnik AERASGARD RLQ-CO2 Notice D'instruction page 16

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AERASGARD
Multifunctional indoor climate sensor AERASGARD
plastic housing with snap-on lid, base with 4-hole attachment, optionally with / without display, type variant RFTM - CO2 - Modbus optionally with /
without setpoint potentiometer. The room sensor is used for detecting the air humidity (0...100 % RH), room temperature (0...+50 °C / –31...+176 °F),
air quality (VOC) (0...100 %), the fine dust (PM) (0...1000 µg/m
tional system of units SI (default) can be changed to imperial (via Modbus). The following parameters can be accessed via the Modbus: Temperature,
relative humidity, air quality (VOC), fine dust (PM) and carbon dioxide (CO2). Use just one device to monitor and control the entire indoor climate
effectively. This enables energy-saving room ventilation on an as-needed basis, thereby reducing operating costs and improving well-being. It is used in
offices, hotels, convention centres, apartments, shops, etc. One sensor for every 30 m² of room area is recommended.
A long-term stable, digital humidity and temperature sensor guarantees exact measurement results. The air quality is determined based on a (VOC)
mixed gas sensor. The CO2 content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology). An optical fine dust
sensor precisely detects particulate (PM) of the size category 0.3 to 10 micrometres.
Innovative Modbus sensor with galvanically separated RS485-Modbus-interface, selectable bus termination resistance, DIP switch for setting the bus
parameters and bus address in current-free state, internal LEDs for telegram status display, two separate push-in terminals and two-line display
(iluminated; with customised programming in the 7-segment and dot-matrix range). The sensor is factory-calibrated; an environmental precision
adjustment by an expert is possible.
TECHNICAL DATA
Power supply:
Power consumption:
System of units:
Data points:
HUMIDIT Y & TEMPERATURE
Sensor:
Measuring range:
Deviation, humidity:
Deviation, temperature:
AIR QUALIT Y ( VOC )
Sensor (VOC):
Measuring range (VOC):
Measuring accuracy (VOC):
Service life (VOC):
FINE DUST ( PM )
Sensor (PM):
Measuring range (PM):
Particle size (PM):
Measuring accuracy (PM):
Long-term stability (PM):
Service life (PM):
CARBON DIOXIDE (CO2)
Sensor (CO2):
Measuring range (CO2):
Measuring accuracy (CO2):
Temperature dependence (CO2):
Pressure dependence (CO2):
Long-term stability (CO2):
Gas exchange (CO2):
® RFTM - LQ - PS - CO2 - Modbus
® RFTM - LQ - PS - CO2 - Modbus (maximum expansion level) with Modbus connection, in an elegant
24 V AC ⁄ DC (± 10 %)
typically < 4.4 W ⁄ 24 V DC; < 6.4 VA ⁄ 24 V AC; peak current 200 mA
SI (default) or imperial (can be changed via Modbus)
temperature [°C] [°F], relative humidity [% RH], fine dust (PM) [µg/m³],
air quality (VOC) [%], carbon dioxide (CO2) [ppm], setpoint potentiometer [%]
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
0...100 % RH (humidity)
0...+50 °C / + 32...+ 122 °F (temperature)
typically ± 2,0 % (20...80 % RH) at +25 °C / +77 °F, otherwise ± 3,0 %
typically ± 0,2 K at +25 °C / ± 0.4 °F at +77 °F
VOC sensor (metal oxide) with automatic calibration
(VOC = volatile organic compounds)
0...100 % air quality; with reference to calibration gas;
multi-range switching VOC sensitivity low, medium, high
typically ± 20 % final value (with reference to the calibration gas)
> 60 months (under normal load conditions)
optical particulate sensor (PM = particulate matter),
fine-dust sensor with laser- and soiling-resistant technology
0...1000 µg/m 3
PM 2.5 (0.3...2.5 µm); PM 10 (0.3...10 µm)
typically ± 10 µg/m 3 (± 10 % of measured value) at PM 2.5
typically ± 25 µg/m 3 (± 25 % of measured value) at PM 10
± 1.25 µg/m 3 (± 1.25 % of measured value per year)
> 10 years
optical NDIR sensor (non-dispersive infra-red technology)
with manual calibration (via zero button),
with automatic calibration (can be deactivated via Modbus)
0...5000 ppm
typically ± 30 ppm (± 3 % of measured value)
± 5 ppm per °C/°F or ± 0.5 % of measured value per °C/°F (whichever is greater)
± 0.13 % per mm Hg
< 2 % in 15 years
Diffusion
) and CO2 content (0...5000 ppm) as well as a room control unit (% setpoint). Interna-
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Rev. Data - V32
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