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Quality product for HVAC sector, accuracy ± 1.8 % or ± 2 %
Calibratable duct humidity and temperature sensors HYGRASGARD® KFTF - Modbus (± 3 %) or KFTF - 20 - Modbus (± 2 %), with plastic sinter filter (optional metal sinter filter), with Modbus connection, terminal box enclosure made of impact-resistant plastic, enclosure cover with quick-locking screws, with ⁄ without optional display.
The universal duct sensor is used to detect various parameters in humidity measurement. The relative humidity and temperature of the ambient air are measured. These measurands are used to calculate various parameters internally. The Modbus can be used to retrieve the following parameters: relative humidity [% r. H.], absolute humidity [g ⁄ m³], mixture ratio [g ⁄ kg], dew-point temperature [°C], enthalpy [kJ ⁄ kg] (ignoring atmospheric air pressure) and ambient temperature [°C].
It is used in non-aggressive, dust-free environments, in the refrigeration, air conditioning and clean room technology, hotels, engineering rooms, meeting and conference facilities. 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 is possible. The sensor is suitable for ceiling and duct installation or for integration in equipment.
24 V AC (± 20 %) and
15…36 V DC
< 1,0 VA ⁄ 24 V DC
< 2,2 VA ⁄ 24 V AC
|Deviation of humidity||
typical ± 2.0 % r. H. (20…80 % r. H. ); at + 25 °C, otherwise ± 3.0 % r. H.
|Temperature deviation||typically ± 0.6 K at +25 °C|
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. (humidity)
– 35...+80 °C (temperature)
|Zero point offset||
± 10 % r.H. (humidity)
± 10 °C (temperature)
|Ambient temperature||–30...+70 °C|
clean air and
non-aggressive, non-combustible gases
Modbus (RTU mode),
address range 0...247 selectable
|Signal filtering||4 s / 32 s|
by mounting flange, plastic
(included in the scope of delivery)
PLEUROFORMTM, material polyamide (PA6), with torsion
protection, Ø 20 mm, NL = 235 mm, vmax = 30 m/s (air)
(on request, optional stainless steel V2A (1.4301), Ø 16 mm)
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted ⁄ Phillips head - combination),
colour traffic white (similar to RAL 9016),
enclosure cover for display is transparent !
|Enclosure dimensions||72 x 64 x 43.3 mm (Tyr 1 with Display)|
2x M 12 x 1.5 (Y-adapter); with strain relief,
exchangeable, max. inner diameter 6 mm
|Long-term stability||± 1 % ⁄ year|
|Permissible air humidity||< 95 % r. H., non-precipitating air|
|Protection class||III (according to EN 60 730)|
|Protection type||IP 65 (according to EN 60 529)|
according to EMC Directive 2014 ⁄ 30 ⁄ EU,
according to EN 61 326
two-line display with illumination, programmable,
cutout approx. 36 x 15 mm (W x H),
for displaying the actual humidity and actual temperature
or a selectable parameter or an individually programmable
(The Modbus interface allows the display to be individually
configured in the 7-segment area and in the dot-matrix area.)
|SF-M||Filter, stainless steel||Stainless steel metal silencer, 40mm||7000-0050-2200-100||35,70 €|
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