Key facts
- Brand
- Siemens
- Model
- LR250
- Documents
- 2
- Languages
- EN
- Last added
- 2011-11-04
Start here

Siemens LR250 Quick Start Manual
This Quick Start Manual for the Siemens SITRANS LR250 (HART) covers essential safety warnings, environmental limits, power requirements and enclosure ratings. It also includes connection drawings, ATEX/IECEx classifications and basic device setup instructions.
The document provides step‑by‑step guidance for installing the sensor, configuring HART communication, and using SIMATIC PDM software to integrate the device into a process control system.
Siemens LR250 specifications
| Ambient Temperature | 40 °C to 80 °C |
|---|---|
| Power Rating (Nominal) | 24 V |
| Power Rating (Maximum) | 20 V, 20 mA |
| Enclosure Rating | NEMA TYPE 4X, IP67, IP6B |
| FCC ID | NLA‑LR250 HART |
| Temperature Code | T4 |
Source: Siemens LR250 Quick Start Manual
All Siemens LR250 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
The shortest path to a working setup, usually only a few pages.
Questions answered in these manuals
What is the ambient temperature range for the SITRANS LR250?
The device operates between 40 °C and 80 °C ambient temperature.
What are the power requirements of the LR250?
It requires a nominal 24 V supply, with a maximum of 20 V and up to 20 mA current.
