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Siemens 7ML5670

Siemens 7ML5670
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SITRANS LC300
SITRANS L
Capacitance continuous level
transmitter
SITRANS LC300
Operating Instructions
7ML5670 (LC300 standard, rod version)
7ML5671 (LC300 standard, stilling well version)
7ML5672 (LC300 standard, stainless steel cable
version)
7ML5673 (LC300 standard, PFA cable version)
05/2021
A5E47904073
-AA
Safety notes
1
The Manual
2
SITRANS LC300
3
Installation
4
Wiring
5
Operation
6
Technical data
7
Dimensions
8
Technical references
A
Product documentation and
support
B

Table of Contents

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Siemens 7ML5670 Specifications

General IconGeneral
BrandSiemens
Model7ML5670
CategoryTransmitter
LanguageEnglish

Summary

Safety Notes

Safety Marking Symbols

Explains safety symbols used in the manual and on the product for hazard identification.

The Manual

Manual Overview and Structure

Provides an introduction to the manual's content and structure.

SITRANS LC300 Overview

SITRANS LC300 Applications

Lists various industries and processes where the SITRANS LC300 is utilized.

SITRANS LC300 Key Features

Details the main technical and functional characteristics of the SITRANS LC300.

Installation

Location Considerations

Discusses factors for choosing an appropriate installation site for the device.

Handling Precautions

Provides critical warnings for safe handling to prevent damage to the SITRANS LC300.

Mounting Procedures

Details the steps and safety instructions for securely mounting the SITRANS LC300.

Process Cautions During Installation

Highlights important considerations and potential issues during the installation phase.

Wiring

Signal Amplifier and Power Supply

Explains the device's power supply circuit and signal output characteristics.

Connecting the SITRANS LC300

Step-by-step guide for wiring the SITRANS LC300 to the current loop.

Wiring Setups for Hazardous Areas

Covers specific wiring configurations for installations in hazardous locations.

Instructions Specific to Hazardous Area

Provides guidelines for safe installation in environments with specific safety requirements.

Operation

Start-up Procedure

Guides users through powering on and basic interface setup of the SITRANS LC300.

Menu Functions and Navigation

Explains the device's menu structure, rotary switch, and button operations.

Menu Position 0: Primary Variable

Details how to view the primary variable (PV) in picoFarads (pF).

Menu Position 1: Lower Range Value (LRV)

Describes the process for adjusting the Lower Range Value (LRV).

Menu Position 2: Upper Range Value (URV)

Explains how to set and adjust the Upper Range Value (URV).

Menu Position 3: Signal and Fault Settings

Covers setting fault protection and viewing analog signal information.

Menu Position 4: Diagnostics

Information on device diagnostics, fault values, and error handling.

Menu Position 5: Damping

Guides on adjusting the damping value for signal smoothing.

Recommissioning and Maintenance

Procedures for recommissioning the device and its maintenance requirements.

Unit Repair and Excluded Liability

Guidelines for device repair and limitations of liability.

Technical Data

Power and Environmental Specifications

Details electrical supply requirements and environmental operating conditions.

Performance and Safety Data

Covers measurement accuracy, stability, safety features, and diagnostics.

Output Signals and User Interface

Information on current loop output and device display/controls.

Electrodes, Connections, and Wetted Parts

Specifies probe types, process connections, and materials in contact with the medium.

Weight, Pressure, and Approvals

Details device weight, pressure/temperature limits, and product certifications.

Dimensions

Overall Device Dimensions

Diagram illustrating the SITRANS LC300 with key measurement points and component labels.

Threaded Rod Probe Dimensions

Specific dimensions for the threaded rod version with PFA probe.

Threaded Rod with Stilling Well Dimensions

Dimensions for the threaded rod version including a stilling well.

Cable Probe Dimensions

Details for the non-insulated threaded cable probe.

Insulated Cable Probe Dimensions

Dimensions for the insulated threaded cable probe.

Welded Flange Cable Probe Dimensions

Dimensions for the non-insulated welded flange cable probe.

Insulated Welded Flange Cable Probe Dimensions

Dimensions for the insulated welded flange cable probe.

Cable Tensile Strength and Shortening

Information on cable strength limits and procedures for shortening the cable.

Technical References

General Installation and Safety Notes

Important warnings and notes for installation and handling of the device.

Pressure-Temperature Curves

Operating curves showing permissible pressure and temperature limits for various configurations.

Product Documentation and Support

Accessing Product Documentation

Guidance on finding manuals, certificates, and downloads via online portals.

Technical Support and Contact Information

Details on how to obtain technical assistance and contact Siemens support.

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