ETF 2 RS485 incl. stainless steel thermowell

Screw-in, immersion temperature sensor with RS485 output

The ETF 2 RS485 is a screw-in temperature sensor in IP65 housing with quickrelease screws whose signal communicates via RS485 Modbus®-RTU and S-Bus. For recording the temperature of aggressive liquid and gaseous media. The application is in pipelines, in heating technology, in storage tanks, district heating compact stations, hot and cold water systems, oil and lubrication circuit systems, in machine, device and plant construction as well as in the entire industrial sector.

Technical Data

G 1/2", SW 27, Ø = 8mm
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 (22 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
Process connection:Screw-in thread with G 1/2“
Protective pipe:Stainless steel, 1.4571, V4A, Ø = 6mm
Connection head:made of 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
Insulation resistance:≥ 100 MΩ, at 20 °C (500V DC)
max. thermowell pressure:40 bar
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,
EMV: according to EN55011 Class B

ETF 1 RS485 mit 2 M16