Level Switches

RF Admittance Level Switchs for Solids & Liquids | Anti-Buildup High Precision Detection

Instrava Curated Instruments — Built on carefully evaluated sensing technologies, our rf admittance level switchs deliver high-precision, stable, and intelligent level detection across solids, liquids, and challenging industrial media.

This rf admittance level switch for sticky materials and bulk solids uses advanced admittance measurement with triple-electrode shielding technology to eliminate false signals caused by buildup, ensuring reliable switching in dusty, viscous, and high-temperature environments.

✔ Anti-buildup intelligent detection
✔ Ultra-wide temperature and pressure capability
✔ Maintenance-free operation

  Liquid Level Switches Description  

RF Admittance Level Switch Advantages for Industrial Applications

Triple-Electrode RF Admittance Level Switch with Anti-Buildup Technology

This rf admittance level switch with shielding electrode design consists of:

  • Measuring electrode
  • Shield electrode
  • Ground electrode

The shield electrode isolates interference and ensures that only true material level changes are detected, effectively eliminating false signals caused by material adhesion or coating.


High-Precision RF Admittance Level Switch with Intelligent Measurement

This high accuracy rf admittance level switch provides:

  • Measurement range up to 3300 pF
  • Resolution of 0.01 pF
  • Accuracy up to 0.05 pF
  • Stability of 0.01%/°C

Delivering reliable and repeatable level detection in critical processes.


Universal RF Admittance Level Switch for All Media Types

This rf admittance level switch for solids, liquids, and slurry supports:

  • Conductive and non-conductive liquids
  • Powders (cement, fly ash)
  • Granular materials (grain, plastic pellets)
  • Slurry and viscous media

Making it a versatile solution for multiple industries.


High Stability RF Admittance Level Switch for Harsh Conditions

Designed for extreme environments, this industrial rf admittance level switch performs reliably under:

  • Steam and foam
  • Agitation and turbulence
  • Dust, crystallization, and wax buildup
  • High temperature up to 1200°C (custom)

Maintenance-Free RF Admittance Level Switch with Strong Anti-Interference

With no moving parts and contact measurement, this maintenance-free rf admittance level switch offers:

  • No mechanical wear
  • Strong resistance to electromagnetic interference
  • Long-term stable performance
RF capacitance type level switch installed on an industrial platform, showcasing a compact horizontal mounting solution.
Real-world installation of an RF admittance level switch on an industrial conical hopper, showcasing high-reliability point level monitoring for bulk solids.

RF Admittance Level Switch Applications for Industrial Processes

RF Admittance Level Switch for Powder and Bulk Solids

This rf admittance level switch for powder level detection is widely used in:

  • Cement and fly ash silos
  • Metallurgy and mining
  • Power plants

RF Admittance Level Switch for Liquid and Slurry Measurement

Suitable as a rf admittance level switch for liquid and slurry, including:

  • Chemical liquids
  • Oil field applications
  • Wastewater treatment systems
  • Pulp and pharmaceutical slurry

RF Admittance Level Switch for High Temperature and High Pressure Systems

With support for:

  • Pressure up to 63 kgf/cm²
  • Extreme temperature environments

This high-temperature rf admittance level switch is ideal for harsh industrial processes.

  Liquid Level Switches Parameter  

ParameterSpecification
Measuring PrincipleRF Admittance (Capacitance + Impedance)
Measuring Range1–3300 pF
Resolution0.01 pF
Accuracy0.05 pF
Stability0.01%/°C
Power Supply18–36V DC / 90–265V AC
Power Consumption<0.8W (DC) / <5VA (AC)
OutputDPDT Relay / 8mA–16mA Two-wire
Relay Capacity5A / 250V AC
Delay0–20 s Adjustable
Process Temperature-40°C to 1200°C (custom above 230°C)
Process PressureMax 63 kgf/cm²
InstallationThread / Flange
Protection RatingIP66 / IP67
Load CapacityUp to 215 Nm (high-temp type)
Explosion ProofEx ia / Ex db / Ex tb / Composite
CertificationSIL-ready / EAC certified
Cable EntryM20×1.5 / 1/2″ NPT

  Instrava OEM/ODM

Reliable Instruments. Solutions That Fit Your Application.

Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.

By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

symbolizing trust and the beginning of a long-term partnership

  Related Product Recommendations  

A rf admittance level switch with shielding electrode uses a driven shield that matches the measuring signal, isolating buildup on the probe. This ensures only the actual material level is detected, eliminating false readings.

A rf admittance level switch for industrial materials can measure:

  • Liquids (conductive and non-conductive)
  • Powders (cement, fly ash)
  • Granules (grain, plastic pellets)
  • Slurry and viscous materials

Yes, this industrial rf admittance level switch is designed for:

  • High temperature up to 1200°C
  • High pressure systems
  • Dust, steam, and turbulent conditions

A rf admittance level switch can distinguish between material buildup and actual level, while capacitive switches cannot, making RF admittance more reliable in sticky or coating applications.

No. This maintenance-free rf admittance level switch has no moving parts and requires minimal cleaning or servicing.

Typical applications include:

  • Cement and power plants
  • Chemical processing
  • Oil and gas industries
  • Water and wastewater treatment

Why Choose Instrava

Built on Consistency, Not Claims

Focused on Industrial Applications

We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.

Strict Product Selection Criteria

Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.

Reliable Supply & Quality Consistency

We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.

Practical, Experience-Based Support

Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.

Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

Industrial measurement scene showing a worker using a precision measuring instrument to measure and mark material on a workbench, demonstrating the practical application of measuring instruments in manufacturing and processing.

Float Level Switch – Reliable Liquid Level Detection Across Industries

  • By Instrava
  • Mar 14, 2026

Float level switches are widely used in industrial and commercial applications to detect liquid levels in tanks, vessels, and pipelines....

  • 1Min Read

Industrial Level Switch Failure Analysis: Root Causes, Patterns, and Prevention Framework

  • By Instrava
  • Feb 22, 2026

Industrial level switch failures are rarely isolated incidents.They follow identifiable patterns linked to material behavior, installation conditions, and sensing limitations....

  • 1Min Read

How to Prevent False Level Switch Alarms: A Practical Engineering Guide

  • By Instrava
  • Feb 18, 2026

False level switch alarms are rarely random. They are usually the result of: Sensor contamination Incorrect technology selection Material property...

  • 1Min Read
Home
Products
Whatsapp
Contact