- % SALE %
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality & Flow
- Modbus | Wireless Modbus
- PowerIO®
- EtherCAT P
- Accessory
Description
Duct humidity and temperature sensor
HYGRASGARD® KFTF - Modbus
Quality product for the HVAC sector, accuracy ±3% or ± 2%
The measuring transducers are used in non-aggressive, dust-free environments, in refrigeration, air conditioning and cleanroom engineering, hotels, engineering rooms, meeting and conference facilities. They provide precise detection of temperature and humidity. A digital, long-term stable sensor is used as a measuring element for humidity and temperature. Fine adjustment by the user is possible. The sensor is suitable for ceiling and duct installation or for integration in equipment.
Technical details
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
15…36 V DC
Power consumption
< 1,0 W/ 24 V DC
< 2,2 VA/ 24 V AC
< 2,2 VA/ 24 V AC
Data points
Temperature [°C], relative humidity [% RH],
dew point [°C], absolute humidity [g / m3],
mixture ratio [g / kg], enthalpy [kJ / kg]
dew point [°C], absolute humidity [g / m3],
mixture ratio [g / kg], enthalpy [kJ / kg]
Measuring range, humidity
0...100 % RH
Deviation of humidity
typical ± 1.8 % (10…90 % RH ); at + 25 °C, otherwise ± 2,0 %
Measuring range, temperature
–35...+80 °C
Temperature deviation
typically ± 0.6 K at +25 °C
Measuring accuracy
± 1,8 %
Measuring range
0...100 % RH (humidity)
-35...+80 °C (temperature)
-35...+80 °C (temperature)
Measuring ranges
0...100 % RH
–35...+80 °C
–35...+80 °C
Zero point offset
± 10 % RH (humidity)
± 5 °C (temperature)
± 5 °C (temperature)
Ambient temperature
–30...+70 °C
Medium
clean air and
non-aggressive, non-combustible gases
non-aggressive, non-combustible gases
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
address range 0...247 selectable
Sensor
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
with integrated temperature sensor,
low hysteresis, high long-term stability
Signal filtering
4 s / 32 s
Sensor protection
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
Process connection
by mounting flange, plastic
(included in the scope of delivery)
(included in the scope of delivery)
Cable gland
2x M 12 x 1.5 (Y-adapter); with strain relief,
exchangeable, max. inner diameter 6 mm
exchangeable, max. inner diameter 6 mm
Long-term stability
± 1 % per year
Permissible air humidity
< 95 % RH, non-precipitating air
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)
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)
Protection class
III (according to EN 60 730)
Housing
plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016),
housing cover for display is transparent !
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016),
housing cover for display is transparent !
Protection type
IP 65 (according to EN 60 529)*
Housing dimensions
72 x 64 x 43.3 mm (Tyr 1 with Display)
Protection type housing
IP 65
Standards
CE conformity
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326
Display
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
display value
(The Modbus interface allows the display to be individually
configured in the 7-segment area and in the dot-matrix area.)
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
display value
(The Modbus interface allows the display to be individually
configured in the 7-segment area and in the dot-matrix area.)