Multi-funtional duct sensor
For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systemsPREMASGARD® 814x-Modbus
Für jede Anwendung die richtige Lösung [Translate]
The calibratable humidity and temperature sensor HYGRASGARD® DFTF 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.
24 V AC (± 20 %) and
15…36 V DC
|Power consumption||< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC|
|Load resistance||RL > 5 kOhm|
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
|Measuring range, humidity||
0...100 % r. H.
(output corresponding to 0 -10 V)
|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.
|Output, humidity||0 - 10 V|
|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)
|Temperature deviation||typically ± 0.2 K at +25 °C|
|Output||0 - 10 V|
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
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