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The calibratable humidity and temperature sensor HYGRASGARD® DFTF - Modbus measures
the relative humidity and temperature of air. It converts the measurands humidity and
temperature into a standard signal of 0 - 10 V or 4...20 mA, and is available with/ without
an optional display.
It is equipped with four switchable temperature ranges. Relative humidity (in % r.H.) is the
quotient of water vapour partial pressure divided by the saturation vapour pressure at the
respective gas temperature. The measuring transducers are designed for exact detection
of temperature and humidity. A digital, long-term stable sensor is used as a measuring
element for humidity and temperature measurement. Fine adjustment by the user
The ceiling-installed sensor is used in non-aggressive, dust-free environments and is used
for installation in suspended ceilings in corridors, offices, as well as in residential and
commercial buildings. The connecting head is pluggable for quick, easy mounting.
The measuring transducer is accommodated in a separate housing.
|Power consumption||< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC|
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
|Operating range, humidity||0...95 % r. H. (without dew formation)|
|Deviation of humidity||
typical ± 2.0 % r. H. (20…80 % r. H. ); at + 25 °C, otherwise ± 3.0 % r. H.
|Measuring range, temperature||
with 4 switchable measuring ranges
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C
(output corresponding to 0 -10 V or 4...20 mA)
storage –5...+60 °C
operation –5...+60 °C
2-, 3- or 4-wire connection
0.14 -1.5 mm ² via terminal screws on circuit board
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
|Housing dimensions||72 x 64 x 37,8 mm (Tyr 1)|
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
made of plastic, material polycarbonate (PC), colour white,
pluggable, Ø = approx. 35 mm, H = approx. 29 mm,
with metal sinter filter made of stainless steel V4A (1.4404)
PVC, LiYY, 4 x 0.14 mm²,
KL = approx. 2 m
|Long-term stability||± 1 %/ year|
inside suspended ceiling,
ceiling cutout Ø = 30 mm,
cover Ø = < 35 mm
|Protection class||III (according to EN 60 730)|
IP 65 (according to EN 60 529) housing only!
IP 30 (according to EN 60 529) sensor in the built-in state
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
sps smart production solutions – S+S Regeltechnik will be there 26. - 28.11.2019
Be our guest at Europe's leading trade fair for electric automation from 26 to 28 November 2018.
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