ET731

Duct air temperature sensors

Features
  • For temperature measurement -40...+85 °C
  • Pt100, Pt500, Pt1000, PTC1000 or NTC sensor
  • External sensor
  • 4-20 mA or RS485 Modbus RTU
Description

ET731 series air temperature sensors are designed for measuring temperatures in air-ducts. Applications include building automation, meteorology and labs.


Technical data
Sensing element Pt100 class A according to EN60751 (as standard)
optional - Pt500, Pt1000, PTC1000, NTC10A
Measuring range -40...+85 °C
Cable connections screw terminal block
2- or 3-wire sensor connection
Dimensions S - H88 × W64 × D42 mm
M - H82 × W80 × D55 mm
Enclosure duct mount
S - light grey PS, protection class IP65
M - grey ABS, protection class IP65
Operating conditions -40...+85 °C, 0...100 %RH
Sensor stem stainless steel
Ø6, L = 100...500 mm by request (L200 mm as standard)
Output plain terminal block
4-20mA analog (for enclosure M only)
RS485 Modbus RTU protocol digital (for enclosure M only)