ALTF 1 RS485, incl. cable tie
Contact temperature sensor / pipe contact sensor with RS485 output
Application
The ALTF 1 RS485 is a pipe contact temperature sensor with aluminium prism and remote electronics housing IP65 with quick-release screws. The signal of which communicates via RS485 Modbus®-RTU and S-Bus. For recording the temperature by means of surface measurement on lines, pipes (e.g. cold and hot water) or on heating lines for heating control.
Technical Data
Measuring range: | - 10 ... +105 °C PVC, LiYY, 2x0.25 mm² - 50 ... +180 °C Silicone, SiHF, 2x0.25 mm² |
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 bis 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 PT1000 |
Temperature coefficient: | <0.003% / K for temperature measurement PT1000 |
Process connection: | Cable tie made of plastic (included) |
Connection head: | made of plastic, polyamide, 30% glass-ball reinforced, with quick-release colour pure white (similar to RAL 9010) |
Dimensions: | 70 x 62 x 37 mm |
Electrical connection: | up to 1.5 mm² via double push-in terminals |
Connecting cable: | 2m PVC or 2m silicone |
Cable gland: | 2 x M16, with strain relief |
Insulation resistance: | ≥ 100 MΩ, bei 20 °C (500V DC) |
Humidity: | < 95 % r. H., non-condensing air |
Protection class: | III (according to EN 60 730) |
Protection type: | IP 54 (according to IEC 529) |
Standards: | CE conformity |
conformity: | according to EN55011 class B |

ALTF 1 RS485