Presense ASL-S2 Stainless Steel Horizontal Float Switch

Introduction - Presense ASL-S2 Stainless Steel Horizontal Float Switch

The Presense ASL-S2 Stainless Steel Horizontal Float Switch is a compact and precise liquid level sensor designed for side-mounted installation in tanks, containers, and industrial systems. Utilizing a magnetic reed switch mechanism, it delivers dependable and accurate level detection for both clean and aggressive fluids.

Constructed from high-grade SUS304 or SUS316 stainless steel, the ASL-S2 offers excellent resistance to corrosion, high temperatures, and vibration, making it ideal for demanding environments such as water treatment, marine operations, and chemical processing. Its robust design ensures long-term stability and consistent performance even under challenging industrial conditions.

This float switch provides reliable control and monitoring in a wide range of applications, from HVAC and oil & gas systems to food processing and pharmaceutical production. The simplicity of its design allows for quick installation and minimal maintenance requirements, while its long mechanical life of up to 10⁷ operations guarantees durable performance.

Distributed by Dubai Sensor, the Presense ASL-S2 is a trusted solution for industrial and commercial level control applications across the UAE and MENA region, where reliability and precision are essential for safe and efficient fluid management.

Key Features & Benefits

• High-precision magnetic reed switch for accurate liquid level detection
  
  
• Corrosion-resistant SUS304 / SUS316 stainless steel construction
  
  
• Compact side-mount horizontal design for space-saving installations
  
  
• Long mechanical life – up to 10⁷ switching cycles
  
  
• Wide operating temperature range (–40°C to +125°C)
  
  
• Excellent electrical insulation and contact reliability
  
  
• Multiple thread types available (M, G, NPT) for versatile installation
  
  
• Resistant to vibration (30 G) and humidity (95% RH @ 80°C)
  
  
• Easy to install, maintain, and integrate into control systems
  
  

Technical Specifications – Presense ASL-S2

Standards & Certifications

• Manufactured from industrial-grade stainless steel (SUS304 / SUS316)
  
  
• Complies with standard electrical insulation and contact resistance requirements
  
  
• Designed for use in industrial automation and process control systems
  
  
• Suitable for integration in control and alarm circuits (non-motor switching)
  
  

Applications & Industries

The Presense ASL-S2 Float Switch is widely used in:

• Water & Wastewater Treatment: Tank and reservoir level monitoring
  
  
• Chemical & Process Industries: Liquid level control in chemical storage tanks
  
  
• Oil & Gas: Monitoring fuel and lubricant levels
  
  
• HVAC Systems: Water regulation in boilers and cooling towers
  
  
• Marine & Shipping: Ballast and fuel tank monitoring
  
  
• Food & Beverage: Ingredient and process liquid management
  
  
• Pharmaceutical: Cleanroom-level control applications
  
  
• Agriculture & Irrigation: Tank and fertilizer level management
  
  
• Residential & Commercial Systems: Sump pumps and water heaters
  
  
• Environmental Systems: Rainwater and flood control setups
  
  

Installation, Commissioning & Maintenance

1. Install the float switch horizontally on the tank wall using the specified thread type (M, G, or NPT).
   
   
2. Ensure the float can move freely within the liquid without obstruction.
   
   
3. Verify correct wiring and orientation for reliable switch operation.
   
   
4. Avoid exposure to viscous or crystallizing liquids that may hinder float movement.
   
   
5. Do not exceed the specified voltage and current ratings.
   
   
6. Periodically inspect for debris buildup or mechanical damage to maintain long-term reliability.
   
   

Why Choose Presense ASL-S2 Stainless Steel Horizontal Float Switch

The Presense ASL-S2 combines engineering precision with industrial durability, making it a dependable solution for liquid level detection. Its stainless steel construction, wide temperature tolerance, and long service life make it ideal for critical monitoring applications where performance cannot be compromised.

With its robust mechanical design and multiple installation options, the ASL-S2 provides excellent adaptability across various sectors — from manufacturing to marine applications. For customers in the UAE and MENA region, its proven reliability and availability through Dubai Sensor ensure both performance and convenience.

Ordering Guide

Ordering Notes:

• Select the appropriate material and thread type for your application.
  
  
• Confirm operating voltage and current ratings before installation.
  
  
• Suitable for control and alarm circuits only (not direct motor load).
  
  
• Available through Dubai Sensor, the official regional distributor for Presense products.

FAQ – Presense ASL-S2 Stainless Steel Horizontal Float Switch

Q1: What is the operating principle of the Presense ASL-S2 Float Switch?
A1: The ASL-S2 operates using a magnetic reed switch mechanism. When the float moves with changing liquid levels, the magnetic field activates the reed contact to open or close the circuit, providing precise level detection.

Q2: What materials are used in the ASL-S2 construction?
A2: The float switch is made of SUS304 or SUS316 stainless steel, offering superior corrosion resistance and durability in both clean and aggressive liquid environments.

Q3: What is the difference between SUS304 and SUS316 versions?
A3: The SUS304 version is suitable for general industrial and water applications, while the SUS316 version provides enhanced corrosion resistance, making it ideal for chemical, marine, and high-salinity environments.

Q4: What are the available thread mounting types?
A4: The ASL-S2 supports M-Type, G-Type, and NPT-Type threads, allowing flexible installation on a variety of tanks and systems.

Q5: Can the ASL-S2 handle high temperatures?
A5: Yes. It operates reliably in a temperature range from –40°C to +125°C, suitable for demanding industrial and process conditions.

Q6: Is the float switch suitable for viscous or crystallizing liquids?
A6: No. The ASL-S2 is recommended for non-viscous and non-crystallizing liquids, ensuring smooth float movement and accurate operation.

Q7: What is the expected service life of the ASL-S2 switch?
A7: The reed switch has a mechanical life of up to 10⁷ operations, ensuring long-term performance in continuous use.

Q8: Can the ASL-S2 be used to control motors directly?
A8: No. It is designed for control and alarm circuits only, not for direct motor load switching.

Q9: What industries commonly use the Presense ASL-S2?
A9: It is widely used in water treatment, oil & gas, HVAC, chemical processing, marine, food & beverage, pharmaceutical, and agricultural applications.

Q10: Where can I purchase the Presense ASL-S2 Float Switch?
A10: The Presense ASL-S2 is available through Dubai Sensor, the official distributor in the UAE and MENA region, ensuring authentic products and regional support.