KTF 1 RS485 incl. mounting flange

Duct temperature sensor/Air duct sensor with RS485 output

The KTF 1 RS485 is a duct temperature sensor in IP65 housing with quickrelease screws, whose signal communicates via RS485 Modbus®-RTU and S-Bus. For  detecting the temperature of gases, e.g. in ventilation and air conditioning ducts.

Technical Data

Measuring range:-50..+150°C
Power supply:24V DC ± 20 %
Power consumption idle:15mA
Bus protocol:RS485 Modbus®-RTU / S-Bus
Configuration option:via Dip switches
(address number, parity, baud)
Address number:1 to 63 (0 not allowed)
Parity mode for Modbus:no parity, even parity, odd parity
Saia S-Bus:Data Mode
Transmission rate:4800, 9600, 19200, 38400 Baud
Inputs:PT1000 1/3 DIN (24 bit resolution / 0.1 °C )
Ambient temperature:-30°C...+60°C
Storage temperature:-40°C...+70°C
Accuracy::<<0.1% for temperature measurement
Temperature coefficient:<0.003% / K for temperature measurement PT1000
Protective pipe:Stainless steel, 1.4571, V4A, Ø = 6mm
Connection head:Plastic, polyamide, 30%
glass-ball reinforced, with quick-release
screws, colour pure white (similar to RAL9010)
Dimensions::70 x 62 x 37mm
Cable gland:2 x M16, with strain relief
Electrical connection:up to 2.5 mm² via double push-in terminals
Process connection:by means of flange, galvanised steel
Insulation resistance:≥ 100 MΩ at 20 °C (500V DC)
Humidity:< 95 % rH, non-condensing air
Protection class:III (according to EN 60 730)
Protection type:IP 65 (according to IEC 529)
Standards::CE conformity
EMC guidelines:according to EN55011 class B