S+S REGELTECHNIK AERASGARD RFTF-CO2 Bedienungs- Und Montageanleitung Seite 6

G
®
AERASGARD RFTF - CO
The self-calibrating microprocessor-controlled devices AERASGARD
CO and RTM-CO are used to detect the CO
2 2
0 ppm to 2000 ppm CO . The measurement signals from the CO
2
are converted into standard signals of 0 -10 V. Optionally, this CO
transducer can be supplied with display or switching output. Elegant enclosure
made of plastic, with snap-on lid, base with 4-hole attachment for installation
on vertically or horizontally installed in-wall flush boxes, with predetermined
breaking point for on-wall cable entry. or in enclosures made of stainless steel
(top and bottom part are of stainless steel, the lid is screwed on), vandalism-
secure version e.g. for schools, military barracks, and public buildings. The
CO content in air is determined by a NDIR sensor (non-dispersive infrared
2
technology). The detection range of this CO
applications such as monitoring of residential rooms or con ference rooms.
Room ventilation on an as-needed basis, improvement of well-being and cus-
tomer benefit, increased comfort as well as a reduction of operating costs
by energy conservation are only some of the beneficial results of employing
®
AERASGARD CO sensors.
2
TECHNICAL DATA:
Power supply: .............................. 24 V AC ⁄ DC
CARBON DIOXIDE (CO )
2
CO sensor: ................................. optical sensor (NDIR),
2
Measuring range, CO : .............. 0 ... 2.000 ppm
2
Output CO : ................................. 0 -10 V
2
Measuring accuracy CO : ......... ± 100 ppm
2
Pressure dependence: .............. ± 1.6 % ⁄ kPa (referred to standard pressure)
Long-term stability: .................... ± 1 % of final value per year
Service life: .................................. > 12 years
Gas exchange: ............................. by diffusion
TEMPERATURE
Measuring range, temperature: .. +5 ...+40 °C (RFTF - CO
Output, temperature: ................ 0 -10 V
HUMIDITY
Measuring range, humidity: ...... 30 ... 80 % r.H.
Output, humidity: ........................ 0 -10 V
Warm-up time: ............................ ca. 1 hour
Ambient temperature: .............. 0 ...+50 °C
Electrical connection: ................ 0.14 - 1.5 mm
Enclosure: .................................... plastic, material ABS, colour pure white (similar RAL 9010),
Dimensions: ................................. 98 x 106 x 32 mm (Frija II)
Installation: .................................. wall mounting or on in-wall flush box, Ø 55 mm, base with 4-hole for mounting on vertically
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 + A1 + A2,
⁄ RTM - CO
2 2
content in air within a range of
2
sensor is calibrated for standard
2
non-dispersive infrared technology
At the RTM-CO -2S the measuring range
2
is selected via two switching thresholds,
which are set at two potentiometers:
Lower limit via S1 (0 V), upper limit via S2
The operating mode can be switched
per pushbutton: Automatic,
Manual (steps 1 and 2) and OFF
⁄ RTM - CO
2
0 ...+50 °C (RTM - CO ⁄ RTM - CO
2
2 , via terminals on circuit board
stainless steel enclosure optional
100 x 100 x 25 mm (stainless steel enclosure)
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
EMC directive 2004 ⁄ 108 ⁄ EC, low-voltage directive 73 ⁄ 23 ⁄ EEC
® RFTF-
Connecting diagram
transmitter
1
2
measuring
2
2
3
4
5
6
7
8
Connecting diagram
1
2
3
4
5
6
7
8
9
Connecting diagram
1
2
3
4
5
6
7
8
9
10
- 2S)
2
- A)
2
UB+ 24V AC/DC
UB- GND
GND
Output 0-10V humidity in % r.H.
GND
Output 0-10V temperature in °C
GND
Output 0-10V CO content in ppm
2
UB+ 24V AC/DC
UB- 24V AC/DC
Free
Free
GND
Free
Free
Output CO content in ppm 0-10V
2
Output temperature in °C 0-10V
UB+ 24V AC/DC
UB- GND
GND
Output 0-10V humidity in % r.H.
GND
Output 0-10V temperature in °C
GND
Output 0-10V CO content in ppm
2
Step 1 (normally open contact) 24V
Step 2 (normally open contact) 24V
RFTF - CO
2
RTM - CO
2
RTM - CO - A
2
RTM - CO - 2S
2