SITRANS Probe LU is a loop-powered continuous level monitor using advanced ultrasonic technology. Its circuit unit consists of electronic components connected to the sensor and process connection. The sensor is available in ETFE (ethylene tetrafluoroethylene) or PVDF (polyvinylidene fluoride) materials. SITRANS Probe LU is suitable for many industrial and applications where corrosive chemicals are used. The ultrasonic sensor includes a temperature sensor element to compensate for temperature variations in the application. It uses HART1 communication and signal processing uses Sound Intelligence® technology.
This manual introduces the SITRANS Probe LU, an ultrasonic continuous level monitor designed for harsh industrial environments. It outlines the device’s key characteristics, such as its NEMA‑4X housing, IP67 protection and HART communication.
The guide covers safety warnings, recommended installation practices, wiring diagrams for intrinsic‑safety zones, power supply requirements, and the two operating modes (run and programming). It also points users to the full instrument manual for detailed configuration and troubleshooting. This manual is written in Chinese.
| Housing | NEMA/TYPE 4X, IP67 |
|---|---|
| Rated Supply Voltage | 24 V standard, 30 V max, 4‑20 mA |
| Operating Temperature Range | -40 °C to 80 °C |
| Process Temperature Range | -40 °C to 85 °C |
| Maximum Load | 5500 hm |
| Cable Size | AWG22‑AWG14 (0.34 mm²‑2.08 mm²) |
The device is rated for 24 V standard, up to 30 V maximum, with a 4‑20 mA current loop.