Non-Invasive Constant Level Monitoring Technology

The Permalevel® Single Point is a fixed-level monitoring device for liquid level monitoring designed for use in a variety of industrial, safety and manufacturing applications. 

The sensor, placed on the outside of the tank, can trigger an alert if the liquid level rises or falls below a fixed point, sending a 4-20mA output to interact with other equipment. 

P/N: 2594650-SP

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Overview

Non-invasive level monitoring system

The Permalevel® Single Point is a fixed-level monitoring device designed for flexibility across a wide range of applications, including pressurized cylinders, storage tanks, and pipes. It provides non-invasive, continuous monitoring to detect changes in liquid levels at a critical point, ensuring safety and operational efficiency in various industrial and safety-critical environments.

How It Works

  • An ultrasonic sensor is securely fixed to a critical position on the container’s side, determined using the Portalevel® unit and verified with the Portasteele® Calculator.
  • The system monitors the presence or absence of liquid at this point without requiring container movement or invasive methods.
  • If the liquid level rises above or falls below the preset point, the system triggers an alert.

Key Features

  • Continuous Monitoring: Provides real-time detection of changes in liquid levels.
  • Alert Integration: Compatible with existing alarm or management systems through a 4-20mA output.
  • Non-Invasive Design: Eliminates the need for disruptive testing or manual intervention.
  • Precision and Accuracy: Accurate to within ±1.5 mm, ensuring reliable performance.

Applications

  • Widely used in critical environments such as power stations, where constant monitoring of fire suppression systems (e.g., FM-200® cylinders) is essential.
  • Suitable for industrial, marine, and commercial sectors requiring liquid level safety compliance where monitoring of liquid levels is important

 

The Permalevel® Single Point is built with an IP65-rated enclosure, offering durability and resistance to dust and water ingress. Its real-time monitoring capabilities enhance operational safety by ensuring that deviations in liquid levels are promptly detected and addressed.

 

What's In The Box

  Permalevel® Single Point:Fixed, mains-powered main unit with digital display for readings and a 4-20mA output
  Permalevel® Single Point Sensor:Piezoelectric ultrasonic sensor with magnetic applicator
  Silicon Grease:Long-lasting ultrasonic coupling grease for fixed sensor application
  Operating Manual:Contains further information regarding the functionality of the instrument and how-to-use
  Calibration Certificate:As evidence that the unit has been tested and shown to be working before dispatch

Technical specifications

Technical Specification
Dimensions
  • Height: 168mm
  • Width: 82mm
  • Depth: 31mm
  • Weight: 400g
Sensors

Piezoelectric ultrasonic sensor with magnetic applicator

Accuracy

±1.5mm

Power Supply

Mains power

Operating Temperatures

-10°C to +65°C / 14F to 149F

Enclosure Rating

IP65 Rating

Warranty
  • Main unit – 3 Year Warranty
  • Sensor –  1 Year Warranty
  • Technical Support – Lifetime of the unit

See the Permalevel® SINGLE POINT in action.

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Frequently asked questions

Yes, it can, providing that the temperature of the CO2 container is kept reasonably stable. The density of CO2 can vary quite considerably with temperature, so if your cylinder is kept outdoors where temperature may vary greatly, the Permalevel® Single Point may not be suitable. In fact, at temperatures above 31°C, it is not possible to use any liquid level indicator for CO2 monitoring, as it will reach its critical temperature and there will be no liquid level.

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The PermaMass® FEATHERWEIGHT is only manufactured to bespoke requirements.

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The Portasteele® CALCULATOR is the perfect partner to any of Coltraco Ultrasonics’ liquid level detectors. It allows you to convert your measured liquid level to an agent weight, precisely and accurately. These readings can then be saved and exported for future reference and traceability. 

Used in partnership with the Portalevel® Ultrasonic Level Indicator range 

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