The Siemens SITRANS LCS100 7ML700 / 7ML701 / 7ML702 / 7ML703 Capacitive Point Level Switch is a versatile level detection device designed for reliable point level measurement of liquids, solids, powders, granules, slurries, and foam. It is suitable for applications requiring high, low, overflow, demand level detection, and pump protection.

Based on capacitive level detection technology, the SITRANS LCS100 detects changes in capacitance caused by the presence or absence of material at the probe. Its compact design, pre-calibrated operation, and optional IO-Link communication make it easy to install and integrate into modern automation systems.

The LCS100 series includes multiple installation versions:

• 7ML700 – Compact version with plastic process connection
• 7ML701 – Compact version with stainless steel process connection
• 7ML702 – Rod extended version
• 7ML703 – Cable extended version
  

Key Features

• Capacitive point level measurement technology
• Detects liquids, solids, powders, granules, slurries, and foam
• Compact and extended probe versions available
• Factory calibrated for quick commissioning
• Reliable operation without complex setup
• Optional IO-Link communication
• Supports 4–20 mA, 8/16 mA, PNP, NPN, and relay outputs depending on configuration
• Repeatability up to 2 mm
• IP68 protection for demanding environments
• Suitable for indoor and outdoor installation
• Resistant to vibration and process conditions
  

Model Overview

Applications

• Storage tank high/low level monitoring
• Pump dry-run protection
• Overflow protection systems
• Chemical storage tanks
• Food and beverage processing
• Pharmaceutical process equipment
• Water and wastewater systems
• Powder and granule silos
• Plastic and bulk material handling
• Industrial process automation

Selection Notes

Before selecting the Siemens SITRANS LCS100 Capacitive Level Switch, consider:

• Medium type (liquid, solid, powder, slurry, foam)
• Dielectric constant of the material
• Installation position and probe length
• Required process connection
• Temperature and pressure conditions
• Output communication requirements
• Hazardous area certification requirements

Selection guide:

• 7ML700 / 7ML701 → Compact installation and limited space applications
• 7ML702 → Extended rod applications for tanks and vessels
• 7ML703 → Cable extension applications for deep vessels and silos

FAQ

Q1: What materials can Siemens SITRANS LCS100 detect?
The SITRANS LCS100 can detect liquids, solids, powders, granules, slurries, and foam using capacitive level sensing technology.

Q2: What is the difference between SITRANS LCS100 7ML700 and 7ML701?
Both are compact versions. The main difference is the process connection material: 7ML700 uses a plastic process connection, while 7ML701 uses a stainless steel process connection.

Q3: Does SITRANS LCS100 support IO-Link?
Yes. Selected versions support IO-Link communication for easier configuration, diagnostics, and integration into automation systems.