Duct humidity and temperature sensor (± 2.0%) KFTF - EtherCAT P
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Duct humidity and temperature sensor (± 2.0%) HYGRASGARD® KFTF - EtherCAT P

Product group: WG02

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400,76 €
476,90 € incl. VAT + shipping


Duct humidity and temperature sensor (± 2.0%) HYGRASGARD® KFTF - EtherCAT P
Interconnective HYGRASGARD® KFTF - EtherCAT P duct humidity and temperature transmitter with M8 plug-in connector (EtherCATP-encoded), Bluetooth-enabled, in an impact resistant plastic housing with quick-locking screws, optionally with/without display and bar graph, with plastic sinter filter (replaceable), incl. mounting flange.
The sensor device serves to detect various parametres in humidity measurement. It measures relative humidity (0...100% RH) and ambient air temperature (–35...+80°C). These measurands are used internally to calculate further output values: absolute humidity (0...80 g/m³), mixture ratio (0...80 g/kg), dew point temperature (–20...+80°C) and enthalpy (0...85 kJ/kg) while ignoring atmospheric air pressure. A long-term stable, digital sensor guarantees precise measuring results. The sensor is factory-calibrated.

EtherCATP-enabled measuring transducer for industrial requirements with maximum reliability: includes easy PLC integration using the devices ESI configuration file, diagnostics (such as communication failure counter), advanced setting options, access to historical data (min/max) and sensor service interval determination. Optionally with large back-lit three-line display (witjh customised programming in the 7-segment and dot-matrix ranges) and bar graph (7-digit, LEDs freely configurable) for graphical display, e.g. as a traffic light indicator.

Technical details

Voltage supply
24VDC via EtherCATP (US)
Power consumption
< 3 W
Data points
Temperature [°C], relative humidity [% RH],
dew point [°C], absolute humidity [g / m3],
mixture ratio [g / kg], enthalpy [kJ / kg]
Measuring range, humidity
0...100 % RH
Deviation of humidity
typical ± 2.0 % (20…80 % RH); at + 25 °C, otherwise ± 3.0 %

Measuring range, temperature
–35...+80 °C
Temperature deviation
typically ± 0.4 K at +25 °C
Radio technology
Bluetooth (LE)
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
Sensor protection
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
Measuring ranges
0...100 % RH
–35...+80 °C
Ambient temperature
–30...+70 °C
annähernd neutrale, nicht aggressive Gase oder Flüssigkeiten
Process connection
by mounting flange, plastic
(included in the scope of delivery)
Protective tube
PLEUROFORM, material polyamide (PA6), with torsion protection,
Ø 20 mm, NL = 235 mm (optionally 100 mm), vmax = 30 m/s (air)
(option on request in stainless steel V2A (1.4301), Ø 16mm)
Cable connection
M8 plug-in connector, EtherCATP-encoded
126 x 90 x 50 mm (Tyr 2)
Long-term stability
± 1 % per year
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 54 (according to EN 60 529)*
Protection type housing
IP 54
CE conformity, according to EMC Directive 2014/ 30/ EU,
according to RED 2014/ 53/ EU