Room CO2 sensor and measuring transducer AERASGARD® RCO2-W VA

Item no. 1501-61A0-7301-205

EAN 4251325616162

Product group: WG02

Maintenance-free AERASGARD® RCO2 - W VA room climate transmitter with active/switching output, automatic calibration (can be deactivated), in an vandal-proof stainless steel housing, for determining the CO2 content of the air (0...2000 ppm/0...5000 ppm). The measuring transducer converts the measured values into a standard signal of 0-10 V or 4...20 mA (switchable).

The sensor device is used in offices, hotels, convention centres, apartments, shops, etc. for the purpose of evaluating the indoor climate. This enables energy-saving room ventilation on an as-needed basis, thereby reducing operating costs and improving well-being.

The CO2 content is measured using an optical NDIR sensor (non-dispersive infra-red technology). The detection range is calibrated for standard applications such as the monitoring of residential and conference rooms.

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

Data points

Carbon dioxide (CO2)

Measuring range, CO2

0...2000 ppm or 0...5000 ppm (selectable via DIP switches)

Output, CO2

0 -10 V or 4...20 mA (selectable via DIP switches)

Measuring accuracy

typically ± 30 ppm ± 3 % of measured value

Temperature dependence, CO2

± 5 ppm/ °C or ± 0.5 % of measured value/ °C
(whichever is higher)

Pressure dependence

± 0,13 %/ mm Hg

Gas exchange

by diffusion

Relay output

with potential-free changeover contact 24 V (assignment selectable via DIP switches)

Warm up time

approx. 1 hour

Response time

< 2 minutes

Output

0 -10 V or 4...20 mA, working resistance < 800 Ω
(selectable via DIP switches)
with offset potentiometer (± 10 % of the measuring range

Sensor

Optical NDIR sensor (non-dispersive infra-red technology),

with manual calibration (via zero button),
with automatic calibration (can be deactivated via DIP switches)

Measuring range

0...2000 ppm / 0...5000 ppm

Ambient temperature

0...+50 °C

Electrical connection

0.14 - 1.5 mm² via terminal screws

Housing

stainless steel V2A (1.4301)

Dimensions

100 x 100 x 25 mm (stainless steel housing)

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

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

Standards

CE conformity, electromagnetic compatibility
according to EN 61 326, EMC Directive 2014/ 30/ EU,
Low Voltage Directive 2014/ 35/ EU

Operating instructions

Catalogue page EN