Datasheet

G
AERASGARD
®
RCO
2
- W ⁄ RCO
2
- SD Rev. 2019 - V32
The maintenance-free microprocessor-controlled room sensor AERASGARD
®
RCO
2
- SD with automatic calibration (fixed) is used for recording the
CO
2
content of the air within a range of 0...2000 ppm. The measurement value is converted into standard signal of 0 -10 V.
The maintenance-free microprocessor-controlled room sensor
AERASGARD
®
RCO
2
- W with automatic calibration (can be deactivated via DIP
switches) is used for detecting the CO
2
content of the air within a range of 0...2000 ppm or 0...5000 ppm. The measurement value is converted into
standard signal of 0 -10 V or 4...20 mA. Optional with traffic light indicator (five coloured LEDs).
Elegant enclosure made of plastic, with snap-on lid, based with 4-hole attachment, for installation on vertically or horizontally installed flush-
mounted boxes, with predetermined breaking point for surface- mounted connection or in enclosure made of stainless steel (top and bottom parts
are stainless steel, the cover is screwed on), vandal-proof version e.g. for schools, barracks and public buildings.
The CO
2
content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology). The detection range of the CO
2
sensor is 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.
TECHNICAL DATA
Power 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
Sensor: Optical NDIR sensor (non-dispersive infra-red technology),
with manual calibration (via zero button),
RCO
2
- SD with automatic calibration (fixed)
RCO
2
-W with automatic calibration (can be deactivated via DIP switches)
Measuring range: RCO
2
- SD 0...2000 ppm (fixed)
RCO
2
- W 0...2000 ppm or 0...5000 ppm (selectable via DIP switches)
Output:
RCO
2
- SD 0 -10 V (fixed)
RCO
2
- W 0 -10 V or 4...20 mA, working resistance < 800 Ω (selectable via DIP switches),
with offset potentiometer (± 10 % of the measuring range)
Relay output:
RCO
2
- SD without changeover contact
RCO
2
- W with potential-free changeover contact (24 V / 1 A)
Measuring accuracy: typically ± 30 ppm ± 3 % of measured value
Temperature dependence: ± 5 ppm ⁄ °C or ± 0.5 % of measured value ⁄ °C (whichever is higher)
Pressure dependence: ± 0.13 % ⁄ mm Hg
Long-term stability: < 2 % in 15 years
Gas exchange: by diffusion
Ambient temperature: 0...+ 50 °C
Warm up time: approx. 1 hour
Response time: < 2 minutes
Electrical connection: 0.14 - 1.5 mm
2
, via screw terminals
Enclosure: plastic, material ABS, colour pure white (similar to RAL 9010), stainless steel enclosure optional V2A (1.4301)
Dimensions: 85 x 85 x 27 mm (Baldur 1)
100 x 100 x 25 mm (stainless steel)
Installation: 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
Protection class: III (according to EN 60 730)
Protection type: IP 30 (according to EN 60 529)
Standards: CE conformity, electromagnetic compatibility according to EN 61 326, EMC Directive 2014 ⁄ 30 ⁄ EU,
Low Voltage Directive 2014 ⁄ 35 ⁄ EU
Optional:
with traffic light indicator (five coloured LEDs, see table) for displaying the CO
2
concentration
with display (see AERASGARD
®
RFTM-LQ-CO
2
) for displaying the actual CO
2
content in ppm
AERASGARD
®
RCO
2
- SD Room CO
2
sensor and measuring transducer, Standard
AERASGARD
®
RCO
2
- W Room CO
2
sensor and measuring transducer, Premium
Type ⁄ WG02 Measuring Range
CO
2
Output
CO
2
Equipment Display Item No.
(Baldur 1)
RCO
2
- SD (fixed) (fixed)
RCO2-SD-U 0...2000 ppm
0 -10 V – 1501-61A0-1001-200
RCO
2
- W
(switchable) (switchable)
RCO2-W
0...2000 ppm ⁄ 5000 ppm 0 -10 V ⁄ 4...20 mA
Changeover contact 1501-61A0-7301-200
RCO2-W VA
0...2000 ppm ⁄ 5000 ppm 0 -10 V ⁄ 4...20 mA
Changeover contact, stainless steel enclosure 1501-61A0-7301-205
RCO2-W DISPLAY
0...2000 ppm ⁄ 5000 ppm 0 -10 V ⁄ 4...20 mA
Changeover contact, display ■ see RFTM-LQ-CO
2
RCO
2
- W - A (switchable) (switchable) with traffic light
RCO2-W-A
0...2000 ppm ⁄ 5000 ppm 0 -10 V ⁄ 4...20 mA
Changeover contact, LEDs 1501-61A0-7331-200
A = with “traffic light” (five coloured LEDs) for displaying the CO
2
concentration.
Note: This unit
must not be used as safety-relevant device!