S+S Regeltechnik AERASGARD AFTM-LQ-CO2 Notice D'instruction page 14

G
®
HYGRASGARD
The maintenance-free microprocessor-controlled on-wall or duct sensor with Modbus connection with/without optional display is an all-in-one device
used for detecting all relevant measured values, such as humidity, temperature, CO
monitoring and control of the entire room climate. It measures CO
LOW / MEDIUM / HIGH, temperatures in the range from –35...+80 °C as well as relative air humidity of 0...100 % r.H. Relative humidity (% r.H.) is the
quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature. A digital, long-term stable
sensor as a measuring element for relative humidity and temperature guarantees exact measurement results. The CO
using an optical NDIR sensor (non-dispersive infra-red technology). The detection range of the sensors 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 are just some of the benefits of employing the AERASGARD
explanations demonstrate that there are applications for CO
combination of both measurands. The crucial factor in this respect is that both of these measurands are not convertible into each other and derivations
to or from one another cannot be made. An NDIR - CO
sensor cannot detect CO molecules.
2
TECHNICAL DATA
Power supply:
Power consumption:
Data points:
HUMIDIT Y
Sensors:
Sensor protection:
Measuring range, humidity:
Operating range, humidity:
Deviation humidity:
TEMPERATURE
Measuring range, temperature: –35...+80 °C
Operating range, temperature:
Deviation, temperature:
AIR QUALIT Y (VOC)
VOC sensor:
VOC measuring range:
VOC measuring accuracy:
Service life:
CARBON DIOXIDE (CO )
2
CO sensor:
2
CO measuring range:
2
CO measuring accuracy:
2
CO temperature dependence:
2
Pressure dependence:
Long-term stability:
Gas exchange:
Bus parameters:
Bus interface:
Bus protocol:
Baud rate:
Status indicator:
Signal filtering:
Ambient temperature:
Response time:
Electrical connection:
Enclosure:
Enclosure dimensions:
Cable gland:
Protective tube:
Process connection:
Protection class:
Protection type:
Standards:
Optional:
AFTM- ⁄ KFTM - LQ - CO
measuring instrument measures selectively and cannot detect any VOCs; a VOC mixed gas
2
24 V AC ⁄ DC (± 10 %)
< 4.8 W ⁄ 24 V DC typical; < 6.8 VA ⁄ 24 V AC typical; peak current 200 mA
temperature, relative humidity, air quality (VOC), carbon dioxide (CO
digital humidity sensor with integrated temperature sensor, low hysteresis, high long-term stability
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable (optional metal sinter filter, Ø 16 mm, L = 32 mm)
0...100 % r. H.
0...95 % r. H. (non-precipitating air)
± 3 % r.H. (20...80 %) at +20 °C, otherwise ± 5 % r.H.
–10...+60 °C
± 0.2 K at +25 °C
VOC sensor (metal oxide) with automatic calibration (VOC = volatile organic compounds)
0...100 % air quality; with reference to calibration gas; multi-range switching VOC sensitivity low, medium, high
± 20 % final value (with reference to the calibration gas)
> 60 months (under normal load conditions)
Optical NDIR sensor (non-dispersive infra-red technology) incl. atmospheric air pressure compensation (up to 1100 mbar)
with automatic and manual calibration
0...5000 ppm
± 30 ppm ± 3 % of measured value
± 5 ppm ⁄ °C or ± 0.5 % of measured value ⁄ °C (whichever is the greater)
± 0.13 % ⁄ mm Hg
< 2 % in 15 years
by diffusion
In the absence of current delivery (under currentless conditions) can be configured and addressed via DIP switch!
RS 485, galvanically isolated, bus termination can be activated via DIP switch. Up to 32 devices possible in one segment.
In case of a greater number of devices, RS 485 transceivers must be used.
Modbus (RTU-Mode), address range 0...247 selectable
9600, 19200, 38400 Baud
Green LED = Telegram valid / red LED = Telegram error
4 s / 32 s
–10...+60 °C
< 2 minutes
0.2 - 1.5 mm 2 , via push-in terminal
plastic, polyamide, 30 % glass-globe-reinforced, with quick-locking screws (slotted ⁄ Phillips head combination),
traffic white colour (similar to RAL 9016), enclosure cover for display is transparent!
126 x 90 x 50 mm (Tyr 2)
2x M 16 x 1.5; including strain relief, exchangeable
KCO / KLQ - CO / KFTM - CO
2 2
PLEUROFORM TM , material: polyamide (PA6), with torsion protection, v
without filter: NL = 202.5 mm, with plastic sinter filter: NL = 235 mm (optional with metal sinter filter: NL = 227 mm)
AFTM - CO / AFTM - LQ - CO
2
in stainless steel, Ø 16 mm, with plastic sinter filter: NL = 55 mm (optional with metal sinter filter: NL = 47 mm)
channel sensors using a flange (included in the scope of delivery), on-wall sensors using screws
III (according to EN 60 730)
IP 65 (according to EN 60 529) enclosure only! (PLEUROFORM IP 30)
CE-conformity, electromagnetic compatibility according to EN 61 326, EMC directive 2014 ⁄ 30 ⁄ EU
three-line display with illumination, cutout approx. 70 x 40 mm (W x H),
to display the actual humidity, actual temperature, air quality and / or the actual CO
- Modbus
2
concentration and air quality (VOC), thus enabling effective
2
in the range from 0...5000 ppm, VOC in one of three selectable sensitivity levels
2
measurements, for VOC measurements, but from our perspective, above all, for a
2
/ KFTM - LQ - CO - Modbus (Patent No. DE 10 2014 010 719.1):
2 2
- Modbus:
2
14
Rev. 2017 - V21 GB
content of the air is measured
2
), atmospheric pressure
2
= 30 m/s (air), Ø 20 mm,
max
content
2
®
CO . The above
2