CAMLogic MN03 Series Membrane Level Gauge

Introduction – CAMLogic MN03 Series Membrane Level Gauge

The CAMLogic MN03 Series Membrane Level Gauge is a robust, non-powered mechanical level indicator designed for reliable detection of bulk material levels in silos, hoppers, and storage bins. Operating through the pressure exerted by powders or granules on its rubber or Viton membrane, it activates a microswitch that signals the material’s presence or absence.

Engineered with a die-cast aluminium housing and IP65 protection, the MN03 offers high mechanical strength and durability even in harsh industrial environments. Its simple construction and mechanical operation eliminate the need for an external power supply, making it both cost-effective and maintenance-free.

The MN03 Series is available in two configurations: the MN03 with a standard para rubber membrane (up to 60 °C) and the MN03V with a Viton (FKM) membrane capable of withstanding process temperatures up to 80 °C. Both models meet ATEX Zone 22 requirements, ensuring safe use in environments with potentially explosive dust atmospheres.

Thanks to its versatile installation and high sensitivity adjustment range, the CAMLogic MN03 is ideal for industrial automation systems in bulk handling, offering excellent reliability and long-term performance. Distributed by Dubai Sensor, it’s a trusted choice for process monitoring applications across the UAE and MENA region.

Key Features & Benefits

• Mechanical operation — no power supply required
  
  
• Die-cast aluminium housing with IP65 protection
  
  
• ATEX-certified for Zone 22 dust environments
  
  
• Adjustable sensitivity range from 120 g to 670 g
  
  
• SPDT microswitch, 10 A @ 250 VAC
  
  
• Operates within −10 °C … +60 °C (up to +80 °C for MN03V)
  
  
• Simple installation — no special tools required
  
  
• Mounting possible in vertical, horizontal, or oblique (45°) positions
  
  
• Optional signal lamp (24 V, 48 V, 115 V, 230 V) for remote indication
  
  
• Maintenance-free operation and long service life
  
  
• Suitable for powders, grains, cement, plastics, and similar materials
  
  

Technical Specifications – CAMLogic MN03 Series

Standards & Certifications

• CE Marking according to EU directives
  
  
• ATEX 2014/34/EU – Certified for Zone 22 dust environments
  
  
• RoHS 2011/65/EU – Restriction of hazardous substances
  
  
• EMC 2014/30/EU – Electromagnetic compatibility
  
  
• LVD 2014/35/EU – Low voltage directive
  
  

Applications & Industries

The CAMLogic MN03 Series is ideal for monitoring powder and granular material levels in:

• Storage silos and hoppers
  
  
• Pneumatic conveying systems
  
  
• Grain and feed mills
  
  
• Plastic material silos
  
  
• Cement and construction material storage
  
  
• Chemical and food processing industries
  
  

Its ATEX compliance and robust construction make it suitable for industrial use in the UAE and wider MENA region, ensuring reliable performance under dusty or demanding conditions.

Installation, Commissioning & Maintenance

• Install on the outer wall of the silo or bin using the provided counter-flange.
  
  
• Ensure correct grounding via the internal earthing screw.
  
  
• The unit can be positioned vertically, horizontally, or up to 45° from the vertical axis.
  
  
• Connect using appropriate cables rated ≤ 4 A/mm² current density.
  
  
• If one cable entry is unused, close it with the supplied plug.
  
  
• No routine maintenance required — only replace worn components if necessary.
  
  
• All service and inspection operations must be performed with the device disconnected and by authorized personnel.
  
  

Why Choose CAMLogic MN03 Series

The CAMLogic MN03 Membrane Level Gauge stands out for its simplicity, durability, and cost efficiency. It provides a reliable mechanical solution for level control without the complexity or maintenance demands of electronic systems.

Its ATEX Zone 22 certification, rugged IP65 aluminium housing, and adjustable sensitivity make it an excellent fit for industries dealing with powdery or granular materials. For dependable, maintenance-free operation and long service life, Dubai Sensor offers the MN03 Series as a proven choice across diverse industrial sectors.

Ordering Guide

1. Select Model:
   
   
• MN03: Standard version (para rubber membrane)
  
  
• MN03V: High-temperature version (Viton membrane, up to 80 °C)
  
  
2. Optional Accessories:
   
   
• Signal lamp (select voltage: 24 V / 48 V / 115 V / 230 V)
  
  
• Counter-flange kit
  
  
3. Confirm Certifications:
   
   
• ATEX Zone 22, CE, RoHS
  
  
4. Contact Distributor:
   
   
• Available through Dubai Sensor, official CAMLogic distributor for the UAE and MENA region.

FAQ – CAMLogic MN03 Series Membrane Level Gauge

Q1: What is the operating principle of the CAMLogic MN03?
A: The MN03 works by sensing the pressure exerted by bulk solids (powders or granules) on its membrane. This pressure activates an internal microswitch that signals when a predefined material level has been reached.

Q2: Does the MN03 require an external power supply?
A: No. The MN03 operates mechanically and does not require any electrical power to function, except when an optional signal lamp is installed.

Q3: What is the difference between MN03 and MN03V models?
A: The MN03 uses a standard para rubber membrane and is suitable for process temperatures up to +60 °C. The MN03V features a Viton (FKM) membrane designed for higher temperatures up to +80 °C.

Q4: In which environments can the MN03 be installed?
A: The MN03 can be installed in vertical, horizontal, or oblique positions (up to 45°) on silo or bin walls. It is suitable for dusty industrial environments and is ATEX Zone 22 certified.

Q5: What type of materials can the MN03 detect?
A: It is ideal for powders, granules, and bulk solids such as cement, grain, flour, plastic pellets, or similar dry materials.

Q6: What maintenance does the MN03 require?
A: The device is maintenance-free under normal conditions. Only periodic inspection of the membrane and cable condition is recommended. Components should be replaced only if visibly worn or damaged.

Q7: What is the electrical specification of the microswitch?
A: The built-in SPDT microswitch has a contact rating of 10 A @ 250 VAC, providing reliable performance for control and alarm circuits.

Q8: Is the MN03 compliant with safety and quality standards?
A: Yes. It complies with CE, RoHS, EMC, LVD, and ATEX (2014/34/EU) directives and is certified for use in Zone 22 dust environments.