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 |