G
AERASGARD
®
RCO
2
- A NT
Rev. 0000 - V10
AERASGARD
®
RCO
2
- A NT
CO
2
sensor for schools with traffic light indicator incl. power supply unit
Type ⁄ WG02
Measuring ranges
CO
2
Display
CO
2
Equipment
Item no.
(Baldur 1)
RCO
2
-A NT
with traffic light
RC O2-A N T
0...3000 ppm
5 LEDs
Connector for power supply unit
1501-61A0-7331-232
RC O2-A N T S T
0...3000 ppm
5 LEDs
Connector for power supply unit, stand holder
1501-61A0-7331-231
RC O2-A UP N T
0...3000 ppm
5 LEDs
In-wall power supply unit
1501-61A0-7331-233
Note:
This unit must
not
be used as safety-relevant device!
Maintenance-free
AERASGARD
®
CO
2
sensor for schools (RCO
2
-A NT)
with traffic light display, incl. power supply unit, self-calibrating, in an
elegant plastic housing, for determining the CO
2
content of room air (0...3000 ppm). The measuring transducer converts the measurand to a
standard signal, which is directly presented visually by five coloured LEDs (traffic light indicator). Available in device versions
RCO
2
-A NT
for direct
wall mounting,
RCO
2
-A UPNT
for mounting on in-wall flush boxes and
RCO
2
-A NT ST
as a floor-mounted device with a metal support.
The room sensor is used in classrooms, training rooms and convention centres, offices, hotels, apartments, shops, etc. and is used for easy and
quick evaluation of the indoor climate. This enables energy-saving room ventilation on an as-needed basis, thereby reducing operating costs and im-
proving well-being. The CO
2
measurement is performed using an optical
NDIR sensor
(non-dispersive infra-red technology).
TECHNICAL DATA
Power supply:
RCO
2
-A UPNT:
24 V AC ⁄ DC (± 10 %)
RCO
2
-A NT, RCO
2
-A NT ST:
230 V AC (50 -60 Hz)
Electrical connection:
power supply unit 230 V ⁄ 50 -60 Hz (included in the scope of delivery)
Sensor:
optical NDIR sensor (non-dispersive infrared technology),
with manual calibration (via zero button)
with automatic calibration
Measurement range:
0…3000 ppm
Measuring accuracy:
typically ± 30 ppm ± 3% of measured value
Temperature dependence:
± 5 ppm ⁄ °C or ± 0.5% of measured value ⁄ °C
(whichever is greater)
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
Housing:
plastic, material ABS, colour pure white (similar to RAL 9010)
Dimensions:
85 x 85 x 27 mm (Baldur 1)
Installation:
RCO
2
-A UPNT, RCO
2
-A NT:
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
RCO
2
-A NT ST:
mobile CO
2
measuring instrument on stand holder (table-top unit)
Protection class:
III (according to EN 60 730)
IP rating:
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
Equipment:
traffic light indicator
(five coloured LEDs, see table)
for displaying the CO
2
concentration
Connector for power supply unit
(connecting cable approx. 1.5 m) or
in-wall power supply unit
for mounting on in-wall flush boxes (
RCO
2
-A UPNT
)
Stand holder
made from stainless steel (
RCO
2
-A NT ST
)
