Switch amplifier ELECTRA – VNR 21.22
Signal Amplifier for Conductive Level Probes with Reliable Switching Control
Key Features:
⚡ Conductive Level Probe Interface
Designed specifically for SL series conductive level probes, enabling accurate level detection for liquids with a minimum conductivity of 1 µS.
🔄 AC Measurement Technology
Operates using low-voltage alternating current, minimizing electrode scaling, galvanic action, and tank corrosion for extended service life.
🎛️ Adjustable Sensitivity
Features adjustable sensitivity starting from 1 µS, allowing precise adaptation to different conductive liquid applications.
Key Features:
🔔 Relay Output with LED Indication
Equipped with a relay output and alarm LED for reliable switching, status indication, and process monitoring.
🏭 DIN Rail Mounting
Compact 35 mm DIN rail design simplifies installation inside industrial control panels and electrical cabinets.
⚙️ Single & Dual Channel Versions
Available in single-channel (VNR21) and dual-channel (VNR22) models to support a wide range of level control applications.
Applications:
💧 Water & Wastewater Systems
Ideal for level monitoring and pump control in water tanks, reservoirs, and treatment plants.
⚗️ Chemical Processing
Suitable for conductive chemicals and industrial process liquids requiring reliable level switching.
🏭 Industrial Process Automation
Provides dependable relay control for alarms, pumps, dosing systems, and automated filling processes.
⚙️ Tank Level Control
Used for high-level and low-level alarms, overflow protection, and automatic tank filling or emptying systems.
Why Choose This Solution?
Reliable Signal Processing
Optimized interface for conductive level probes.
Adjustable Sensitivity
Configurable for different liquid conductivities.
Easy Panel Installation
Compact DIN rail mounting with simple wiring.
Industrial Reliability
AC measurement technology minimizes electrode wear and ensures long-term performance.
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