CAMLogic PFGLP Series Float Level Indicator

Introduction – CAMLogic PFGLP Series Float Level Indicator

The CAMLogic PFGLP Series Float Level Indicator is a robust, mechanically actuated switch designed to detect liquid levels in industrial tanks and process vessels. It operates entirely on the buoyancy principle, where the movement of the float is magnetically transmitted to an internal SPDT microswitch that provides a precise signal output. With no need for an external power supply, the PFGLP offers a simple, reliable, and maintenance-free solution for level control in demanding applications.

Constructed from high-quality stainless steel (AISI 316Ti/304L) and housed in a powder-coated aluminium enclosure, this device ensures long-term durability even in contact with corrosive or food-grade liquids. The hermetic separation between the float and the switch chamber prevents contamination and guarantees consistent operation under high process pressures up to 25 bar.

The PFGLP Series is ATEX-certified for safe operation in Zone 1/21 explosive atmospheres containing gases or dusts, making it ideal for chemical, petrochemical, and food industries. Thanks to its simple installation, no-calibration setup, and IP65 protection, it is a preferred choice for integrators and maintenance teams across Europe, the UAE, and the broader MENA region.

Available in standard, curved (PFGLP/C), and extended configurations, the PFGLP Series adapts easily to different mounting positions — from horizontal tank walls to top-entry applications — providing a flexible solution for reliable liquid level monitoring.

Key Features & Benefits

• Operates without electrical power – purely mechanical switching.
  
  
• SPDT contact output rated up to 10 A / 250 VAC.
  
  
• Hermetically sealed design prevents product contamination.
  
  
• ATEX-certified for use in Zone 1/21 and Zone 22 environments.
  
  
• Rugged construction in stainless steel and die-cast aluminium.
  
  
• Maintenance-free design with long service life.
  
  
• Simple horizontal or top mounting – no special tools required.
  
  
• Food-contact compliant (Reg. 1935/2004/EU).
  
  
• IP65 protection against dust and water jets.
  
  
• Suitable for corrosive, viscous, or hygienic liquids.
  
  

Technical Specifications – CAMLogic PFGLP Series Float Level Indicator

Standards & Certifications

• ATEX Directive 2014/34/EU – Certified for explosive gases and dusts.
  
  
• LVD 2014/35/EU – Low voltage compliance.
  
  
• RoHS 2011/65/EU – Restriction of hazardous substances.
  
  
• Regulation 1935/2004/EU – Food-contact material compliance.
  
  
• EN 60079-14 – Installation in explosive atmospheres.
  
  
• IP65 – Dust-tight and water-jet protected design.
  
  

Marking example:
Ex II 2GD Ex d IIB T4 Ex tD A21 IP65 T135 °C (Zone 1/21)
Ex II 3D Ex tc IIIB T135 °C Dc (Zone 22)

Applications & Industries

• Chemical & Petrochemical plants – Level control of solvents, acids, and hydrocarbons.
  
  
• Food & Beverage processing – Suitable for hygienic liquid handling.
  
  
• Pharmaceutical & Biotech – For tanks requiring stainless and sealed level control.
  
  
• Water treatment & utilities – Reliable switching in storage and process tanks.
  
  
• Explosion-risk environments – Certified for Zones 1/21 and 22 applications.
  
  

Used throughout Europe, the UAE, and MENA for safe and efficient tank level monitoring.

Installation, Commissioning & Maintenance

• Install on the side wall or top of the tank, depending on model.
  
  
• Ensure horizontal float axis is parallel to the liquid surface.
  
  
• For curved versions, mount up to 45° inclination if required.
  
  
• Earth connection (PE) must be made before energizing any circuit.
  
  
• Use Faston 6.3 × 0.8 mm terminals for microswitch connection.
  
  
• Device must be de-energized before wiring or servicing.
  
  
• No routine maintenance is necessary — periodic visual inspection only.
  
  

Why Choose CAMLogic PFGLP Series Float Level Indicator

The CAMLogic PFGLP Series combines mechanical reliability with modern safety compliance, delivering dependable liquid level control in even the harshest environments. Its fully enclosed magnetic actuation eliminates leakage paths and electrical hazards, while the ATEX flameproof design ensures protection in explosive zones.

Trusted by process engineers and OEM integrators worldwide, this float level indicator offers cost-effective performance, food-grade compatibility, and long operational life — making it a preferred solution for industrial automation and fluid management systems distributed by Dubai Sensor across the UAE and the wider MENA region.

Ordering Guide

1. Select model: PFGLP (standard) or PFGLP/C (curved).
   
   
2. Choose connection: DN40 PN16 flange or G 2″ BSPP thread.
   
   
3. Specify extension length: 300 – 500 mm (if required).
   
   
4. Confirm optional bellows material: neoprene / silicone.
   
   
5. Indicate ATEX category: Zone 1/21 or Zone 22.
   
   

For official distribution, product configuration, and technical support, contact Dubai Sensor, authorized CAMLogic distributor.

FAQ – CAMLogic PFGLP Series Float Level Indicator

Q1: What is the operating principle of the CAMLogic PFGLP Series Float Level Indicator?
The PFGLP Series works on the buoyancy principle. As the liquid level rises or falls, the float moves and magnetically activates an internal SPDT microswitch, generating an electrical signal without requiring an external power supply.

Q2: In which applications can the PFGLP Series be used?
It is ideal for liquid level detection in tanks and process vessels across industries such as chemical, petrochemical, food & beverage, pharmaceutical, and water treatment, including ATEX explosive zones (1/21 and 22).

Q3: Does the PFGLP require an electrical power supply to operate?
No. The float movement directly actuates the microswitch mechanically, so no external power source is needed for operation.

Q4: What materials are used in the PFGLP construction?
The device features a powder-coated aluminium housing, AISI 316Ti stainless-steel float and rod, AISI 304L flange, and neoprene or optional silicone bellows, ensuring high corrosion resistance and long service life.

Q5: What certifications does the PFGLP Series carry?
The PFGLP is ATEX-certified for use in Zone 1/21 (gas and dust) and Zone 22 (dust) areas. It also complies with RoHS, LVD, and Food Contact Regulation (EC) 1935/2004.

Q6: What are the process and ambient operating conditions?
The device operates within –10 °C to +100 °C for both process and ambient temperatures and can withstand process pressures up to 25 bar.

Q7: Is the PFGLP suitable for use with food products or corrosive liquids?
Yes. Its stainless-steel wetted parts and food-contact compliance make it suitable for food-grade and corrosive liquid applications.

Q8: How is the PFGLP installed?
The standard model mounts horizontally on the tank wall, while the curved PFGLP/C version can be installed from the top or at up to a 45° angle. No calibration or special tools are required.

Q9: What is the maintenance requirement?
The PFGLP Series is maintenance-free under normal operation. Only periodic visual inspections are recommended to ensure mechanical integrity.

Q10: What are the available configurations?
Models include PFGLP (standard), PFGLP/C (curved stem), and PFGLP with extensions ranging from 300 mm to 500 mm, with custom lengths available on request.