- New
- Sale
- Temperature
- Humidity
- Pressure
- Light Intensity & Motion
- Air Quality
- Flow
- Modbus | Wireless Modbus
- Room controller
- EtherCAT P
- Accessory
Description
Duct humidity and temperature sensors
HYGRASGARD® KFTF-20 VA
Calibratable HYGRASGARD® KFTF - 20-VA humidity and temperature transmitter (± 1.8%) with metal sinter filter, rugged housing in V4A stainless steel, optionally with/without display, with cable gland or M12 connector according to DIN EN 61076-2-101.
The sensor device measures relative humidity and air temperature and converts these measurand into a standard signal of 0-10 V or 4...20 mA. It supports four switchable temperature ranges and is applied in non-aggressive dust-free atmospheres in refrigeration, air conditioning, ventilation and cleanroom engineering. The measuring transducer provides precise detection of humidity. A digital long-term stable sensor is used as measuring element for humidity. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.
Technical details
Power consumption
< 1.1 VA/ 24 V DC
Data points
temperature [°C], relative humidity [% RH]
Measuring range, humidity
0...100 % RH
(output corresponding to 4...20 mA)
(output corresponding to 4...20 mA)
Deviation of humidity
typical ± 1.8 % (10…90 % RH ); at + 25 °C, otherwise ± 2,0 %
Measuring range, temperature
multi-range switching
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C
(output corresponding to 4...20 mA)
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C
(output corresponding to 4...20 mA)
Measuring accuracy
± 1,8 %
Sensor protection
metal sinter filter, Ø 16 mm, L = 32 mm, exchangeable,
stainless steel V4A (1.4404)
stainless steel V4A (1.4404)
Measuring ranges
–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
0...100 % RH
Accuracy
typically ± 0.2 K at +25 °C
Ambient temperature
storage –35...+85 °C;
operation – 30...+75 °C, non-precipitating
operation – 30...+75 °C, non-precipitating
Process connection
by screws via the mounting fixture on the housing
Protective tube
stainless steel V2A (1.4301), Ø 16 mm
NL = 137 mm
NL = 137 mm
Electrical connection
2-, 3- or 4-wire connection
0.14 -1.5 mm ² via terminal screws on circuit board
0.14 -1.5 mm ² via terminal screws on circuit board
Housing
stainless steel V4A (1.4571),
with non-distortion cover bolting,
impact-resistant, high EMI shielding,
corrosion, temperature, UV and weathering resistant
with non-distortion cover bolting,
impact-resistant, high EMI shielding,
corrosion, temperature, UV and weathering resistant
Housing dimensions
143 x 97 x 61 mm (Tyr 2E)
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 65 (according to EN 60 529)
Housing tested, TÜV SÜD, Report No. 713160960B (Skadi2)
Housing tested, TÜV SÜD, Report No. 713160960B (Skadi2)
Protection type housing
IP 65
Standards
CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3