ET741

Pipe surface Temperature Sensors
ET741
Features
  • For surface temperatures from -40 to +90 °C
  • Mounting on water pipes with metal straps
  • Pt100, Pt500, Pt1000, PTC1000 or NTC sensor
  • Grey plastic terminal box, bottom surface sensor
  • 4-20 mA, 0-10 V or RS-485 Modbus RTU
Description

ET741 series pipe surface temperature sensors are designed for measuring temperatures of hot water pipes in HVAC applications.


Technical Data
Sensing element Pt100 class A according to EN60751 (as standard)
optional Pt500, Pt1000, PTC1000
Measurement range -40...+90 °C
Cable connections screw terminal block
2- or 3-wire sensor connection
Dimensions S - H88 × W65 × D43 mm
M - H85 × W80 × D55 mm
Enclosure S - light grey PS, protection class IP55
M - grey ABS, protection class IP66
Operating conditions -40...+85 °C, 0...100 %RH
Output plastic screw terminal
transmitter 4-20 mA / 0-10 V analog
RS485 Modbus RTU protocol digital


Similar Products


ET241 - Surface RTD sensor with cable
ET241 - Surface RTD sensor with cable
  • For measuring temperatures -50...+500 °C
  • Pt100, Pt1000, PTC1000 or NTC sensors
  • Available in 2-, 3- or 4-wire circuit
  • Silicone, teflon or fiberglass insulated cable
  • Quick and easy installation
  • Double RTD sensing element option

ET243 - Pipe surface temperature sensor
ET243 - Pipe surface temperature sensor
  • Operating range -40...+80 °C or -30...+105 °C
  • Pt1000 sensor
  • For pipes Ø16...60 mm
  • PVC insulated cable

ET203 - HVAC/R temperature sensor
ET203 - HVAC/R temperature sensor
  • Pt1000, Ni1000 RTD or NTC thermistor
  • -40...+105 °C operation
  • Moulded plastic sensor protection
  • Two-wire flexible or rigid PVC insulated cable
  • Intended for floor-heating and HVAC systems

ET231 - Temperature probes with bayonet lock
ET231 - Temperature probes with bayonet lock
  • RTD, thermocouple, PTC or NTC sensor
  • A4 / AISI316L steel bayonet tip
  • Steel spring 200 mm
  • Bayonet caps with one or two slots
  • Fiberglass, silicone, fluoroplast or PVC insulated cable