Key facts
- Brand
- Siemens
- Model
- SITRANS LG250
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH
- Last added
- 2026-10-24
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Siemens SITRANS LG250 Radar Level Sensor User Manual
The Siemens SITRANS LG250 is a radar sensor designed for continuous level or interface measurement in liquids. It supports both rod and cable probes and features SIL certification for use in safety instrumented systems (SIS). The device operates by sending high-frequency microwave pulses along a steel cable or rod, which reflect off the medium surface to determine the level. This manual is written in Chinese.
Read onlineSiemens SITRANS LG250 specifications
| Safety Integrity Level | SIL2 (single channel), SIL3 (uniform redundancy with HFT 1) |
|---|---|
| Probe Types | Rod and cable |
| Output Signal | 4 ... 20 mA/HART - two-wire |
| Hardware Version | From version 1.0.0 |
| Software Version | From version 1.2.0 |
Source: Siemens SITRANS LG250 Radar Level Sensor User Manual
All Siemens SITRANS LG250 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What are the two types of electronic components available?
The standard component works with 90...253 V AC, while the component with power supply works with 9.6...48 V DC or 20...42 V AC.
What are the minimum requirements for measuring an interface?
The upper medium must have a dielectric constant of at least 1.6, and its thickness must be at least 50 mm.
What is the safety integrity level of the SITRANS LG250?
The instrument is certified for SIL2 in single-channel operation and can reach SIL3 in uniform redundancy with HFT 1.
What types of probes does the SITRANS LG250 support?
It supports both rod and cable probes for level measurement.