KFTF RS485
Duct humidity and temperature sensor with RS485 output
Application
The KFTF RS485 with or without display is a humidity/temperature sensor whose signal communicates via RS485 and by means of Modbus® RTU and measures the relative and absolute humidity as well as the temperature of the air and other non-aggressive gases. It is used in refrigeration, ventilation, air conditioning and clean room technology, in greenhouses and halls. The housings are suitable for duct mounting.
Technical Data
| Power supply: | 24V DC ± 20% |
| Power consumption idle: | 5mA |
| Bus protocol: | RS485 Modbus®-RTU |
| 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 |
| Transmission rate: | 4800, 9600, 19200, 38400 Baud |
| Temperature meas. range | MB: -30...+80 °C, resolution 0.1 °C, measuring error ± 0.3 °C |
| MB Relative humidity: | MB: 0...100% rH, working range 20...95% rH Resolution 1%, measuring error at 20...80% ±3 |
| MB absolute humidity: | 0,1 gr/m³ |
| Ambient temperature: | -30°C...+60°C |
| Humidity | < 95 % rH, non-condensing air |
| Connection head: | ABS/ PC, colour pure white (similar to RAL9010), 4 quick release screws |
| Dimensions: | 81 x 55 x 35mm plus PGs |
| Protective pipe: | ABS/ PC, colour pure white (similar to RAL9010), EL=160mm, ø 16.5mm |
| Display (optional): | LCD display |
| Cable gland: | 2 x M16, with strain relief |
| Electrical connection: | 0.14 - 1.5 mm² via screw terminals on circuit board |
| Process connection: | by means of ABS/PC mounting flange (included) |
| Protection class: | III (according to EN 60 730) |
| Protection type: | Housing IP 65, sensor IP40 (according to IEC 529) |
| Standards: | CE conformity |
| EMC guidelines: | according to EN55011 class B |
KFTF RS485
with Display
