Siemens SITRANS LR 300 Instruction Manual

This document is the instruction manual for SITRANS LR 300, including safety instructions, installation, and interconnection.

Brand: SITRANS
Category: Industrial Supply
Document type: User Manual
Language: Chinese
Pages: 138
File format: PDF
File size: 1.5 MB
Updated: 29 September, 2023
MD5 checksum: 70F1E0A820C084A90B34E5FBE993448F
PDF: Siemens SITRANS LR 300 Instruction Manual PDF

About this manual

This manual covers safety warnings and symbols required for safe handling of the SITRANS LR 300 level measurement instrument. It explains the device’s construction, applicable standards, and the importance of qualified personnel for installation and operation.

The document details installation procedures, communication interfaces (Modbus, HART, PROFIBUS PA), configuration, operation modes, parameter descriptions, and maintenance. Technical specifications, certification information, and appendices are also included. This manual is written in Chinese.

What's inside

Safety Guidelines
Product Overview
Communication Interfaces
Installation Procedures
Parameter Description
Operation Modes
Technical Specifications
Maintenance
Appendices

Specifications

Power supply (DC)	24–230 Vdc, +15% (9 W)
Fuse	FU1 & FU2, fast‑acting ceramic Bussmann ABC, 1 A 250 V
Analog output	4‑20 mA isolated, max 450 Ω, ±0.02 mA resolution
Serial interface	Isolated RS‑485

Frequently asked questions

What safety warnings are given for the SITRANS LR 300?

The manual warns that ignoring required precautions can cause death, serious injury, or property loss.

Which communication protocols does the SITRANS LR 300 support?

It supports Modbus, HART, and PROFIBUS PA communication standards.

What type of fuse is required for the SITRANS LR 300?

It uses fast‑acting ceramic Bussmann ABC fuses, model FU1 and FU2, rated 1 A 250 V.

Download PDF (1.5 MB)