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) |
