Room humidity, temperature and PM sensor RFTM-PS-Modbus
temperature Temperature
temperature Luftfeuchtigkeit
temperature Fine dust particulate

Room humidity, temperature and PM sensor AERASGARD® RFTM-PS-Modbus

Item no. 1501-2116-6001-200
EAN 4251325618876
Product group: WG02

In Stock

Usually ships in 1 to 3 days
382,69 €
455,40 € incl. VAT + shipping
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Description

Room humidity, temperature and PM sensor AERASGARD® RFTM-PS Modbus
Multifunctional indoor climate sensor AERASGARD® RFTM - LQ - PS - CO2 - Modbus (maximum expansion level) with Modbus connection, in an elegant 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), air quality (VOC) (0…100 %), the fine dust (PM) (0...1000 µg/m3) and CO2 content (0...5000 ppm) as well as a room control unit (% setpoint). International 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 (illuminated; 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 details

Measuring range (PM)
0... 50 μg/m³ 0...100 μg/m³ 0...300 μg/m³ 0...500 μg/m³
Measuring accuracy (PM)
typically ± 10 g/m3 (± 10 % of measured value) at PM 2.5
typically ± 25 g/m3 (± 25 % of measured value) at PM 10
Particle size (PM)
PM 2,5 (0,3...2,5 μm); PM 10 (0,3...10 μm)
Voltage supply
24 V AC/ DC (± 10 %)
Power consumption
< 4.4 W/ 24 V DC typical; < 6.4 VA/ 24 V AC typical;
peak current 200 mA
Data points
temperature, relative humidity, fine dust (PM)
Operating range, humidity
0...95 % RH (without dew formation)
Deviation of humidity
typical ± 2 % RH (20…80 % RH ); at + 25 °C, otherwise ± 3 %
Operating range, temperature
0...+50 °C
Temperature deviation
typically ± 0.2 K at +25 °C
Ambient conditions
0...+50 °C
Service life
> 60 months (under normal load conditions)
depending on the type of loading and gas concentration
Warm up time
approx. 1 hour
Response time
< 2 minutes
Measuring range
0...50 / 0...100 / 0...300 / 0...500 μg/m³
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
Signal filtering
4 s / 32 s
Electrical connection
0.14 - 1.5 mm² via terminal screws
Housing
plastic, material ABS,
colour pure white (similar to RAL 9010)
Dimensions
98 x 98 x 33 mm (Baldur 2)
Long-term stability
< 2 % in 15 years
Protection class
III (according to EN 60 730)
Protection type
IP 30 (according to EN 60 529)
Protection type housing
IP 30
Units
switchable metric / imperial
Installation
wall mounting or on in-wall flush box, Ø 55 mm,
base with 4 holes, for attachment to vertically or
horizontally installed in-wall flush boxes for rear cable entry,
with predetermined breaking point for cable entry
from top/ bottom in case of plain on-wall installation
Standards
CE conformity, electromagnetic compatibility
according to EN 61 326, EMC Directive 2014/ 30/ EU,
Low Voltage Directive 2014/ 35/ EU

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