G
AERASGARD
®
KCO2
- SD
/
KCO2
-W
Rev. 2021 - V40
Patented quality product (patent no. DE 10 2014 010 719.1)
Maintenance-free duct sensor
AERASGARD
®
KCO2-SD
with active output, automatic calibration (fixed), in a compact plastic enclosure with snap-
on lid, 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. Maintenance-free duct sensor
AERASGARD
®
KCO2-W
with active/switching output, automatic calibration (can be deac-
tivated), in a compact plastic enclosure with quick-locking screws, optionally with/without display, 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 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. One sensor for every 30 m² of
space is recommended. The CO2 measurement is performed using an optical
NDIR sensor
(non-dispersive infra-red technology).The detection range
is calibrated for standard applications such as monitoring residential rooms and conference rooms.
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),
KCO2 - SD
with automatic calibration ( fixed)
KCO2 -W
with automatic calibration (can be deactivated via DIP switches)
Measuring range:
Multi-range switching
(selectable via DIP switches)
0...2000 ppm; 0...5000 ppm
Output:
KCO2 - SD
0 -10 V (fixed)
KCO2 - 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:
KCO2 - SD
without changeover contact
KCO2 - W
with potential-free
changeover contact
(24 V / 1 A), switchpoint adjustable
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
Warm up time:
approx. 1 hour
Ambient temperature:
–10...+60 °C
Response time:
approx. 1 minute, minimum flow rate 0.3 m / s (air)
Electrical connection:
0.14 - 1.5 mm
2
, via screw terminals
Housing:
plastic, UV-resistant, material polyamide, 30 % glass-globe reinforced,
colour traffic white (similar to RAL 9016), housing cover for display is transparent!
KCO2 - SD
with snap-on lid,
KCO2 -W
with quick-locking screws
(slotted ⁄ Phillips head combination)
Housing dimensions:
72 x 64 x 37.8 mm (Tyr 1/Tyr 01 without display)
72 x 64 x 43.3 mm (Tyr 1 with display)
Cable connection:
cable gland
, plastic (M 16 x 1.5; with strain relief,
exchangeable, max. inner diameter 10.4 mm)
or
M12 connector
according to DIN EN 61076-2-101 (optional on request)
Protective tube:
PLEUROFORM
TM
, material polyamide (PA6), with torsion protection,
Ø 20 mm, NL = 202.5 mm, v
max
= 30 m/s (air)
Process connection:
via flange made of plastic (included in scope of delivery)
Protection class:
III (according to EN 60 730)
Protection type:
KCO2 - SD IP 54
(according to EN 60 529)
*
Housing tested,
TÜV SÜD, Report No. 713160960A (Tyr 01)
KCO2 - W
IP 65
(according to EN 60 529)
*
Housing tested,
TÜV SÜD, Report No. 713139052 (Tyr 1)
*
Housing in the built-in state (permeable PLEUROFORM: IP 30)
Standards:
CE conformity, electromagnetic compatibility according to EN 61 326, EMC Directive 2014 ⁄ 30 ⁄ EU
Optional:
Display with illumination,
two line, cutout approx. 36 x15 mm (W x H),
for displaying the
Actual CO2 content
and for setting the
switchpoint
Type ⁄ WG02
Measuring Range
CO2
Output
CO2
Equipment
Display
Item No.
KCO2 - SD
(switchable)
(fixed)
IP 54
K C O2- SD -U
0...2000 ppm ⁄ 0...5000 ppm 0 -10 V
–
1501-3160-1001-200
KCO2 - W
(switchable)
(switchable)
IP 65
K C O2-W
0...2000 ppm ⁄ 0...5000 ppm 0 -10 V ⁄ 4...20 mA
changeover contact
1501-3140-7301-200
K C O2-W
LCD
0...2000 ppm ⁄ 0...5000 ppm 0 -10 V ⁄ 4...20 mA
changeover contact, display
■
1501-3140-7321-200
Optional:
Cable connection with
M12 connector
according to DIN EN 61076-2-101 (on request)
Note:
This unit
must not
be used as safety-relevant device!
