Helios KWL-FTF eC Notice De Montage Et D'utilisation page 9

Installation and operating instructions
ATTENTION
CHAPTER 2
DATA
Room sensor KWL-FTF eC
a measuring element for humidity and temperature measurement. Fine adjustment
by the user is possible.
Any use other than the intended use is prohibited!
1.8 Functionality
The calibratable room humidity and temperature sensor KWL-FTF eC measures
the relative humidity and ⁄ or temperature of air. It converts the measured variables
of humidity and temperature into a bus signal. In an elegant housing made of plastic,
with snap-on lid, base with 4-hole attachment for installation on vertically or hori-
zontally installed in-wall flush boxes, with predetermined breaking point for on-wall
cable entry. The relative humidity (in % r.H.) is the quotient of water vapour partial
pressure divided by the saturation vapour pressure at the respective gas tempera-
ture.
2.1 Technical data
KWL-FTF eC
Dimensions (W x H x D) mm
Power supply
Load resistance
Power consumption
Sensor
Measuring range humidity
Operating range humidity
Deviation humidity
Output humidity
Measuring range temperature
Operating range temperature
Deviation temperature
Output temperature
Ambient temperature
Electrical connection
Housing
Installation
Long-term stability
Protection class
Protection type
Standards
85 x 85 x 27 mm
15...36 V DC
R > 5 kΩ
L
0.3 W ⁄ 24 V DC;
digital humidity sensor, with integrated tem-
perature sensor, small hysteresis, high
longterm stability
0...100 % r.H.
0...95 % r.H. (non-precipitating air)
± 2,0 % (20...80 % r.H.) at +25°C,
otherwise ± 3,0 %
Bussignal
0...+50°C
0...+50°C
± 0,2 K at +25°C
0 - 10 V
Storage –25...+50 °C; operation –5...+55 °C
0.14 - 1.5 mm , via screw terminals
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plastic, material ABS, colour pure white (simi-
lar to RAL 9010)
wall mounting or on in-wall flusch 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
± 1 % per year
III (according to EN 60 730)
IP 30 (according to EN 60 529)
CE conformity, according to EMC directive
2014 ⁄ 30 ⁄ EU, according to EN 61326-1,
according to EN 61326-2-3
2
EN