Portalevel® Max Marine Technical Specifications

With the recent difficulties that the shipping industry is facing, Coltraco Ultrasonics understand the need for practical, labour saving and cost-efficient solutions to safety issues.  However, maintaining high standards of fire safety practice does not have to be expensive or time consuming, Coltraco strive to provide easy and long lasting solutions that are suitable to varying budgets. There is a call to respond to regulations with a rigorous attitude, to go above and beyond, to provide security of life and infrastructure. Installations must be maintained so that they can provide the protection that they are intended for. Fire can cause crippling financial, physical and reputational damage to happen to crew, vessel and cargo. 2017 Coltraco developed a quick, easy and safer solution to weighing the ships’ fire suppression system: Portalevel® MAX Marine + Portasteele® Calculator.

The Portalevel® MAX Marine is designed primarily for maritime applications where either third party service companies or the vessels’ crew themselves, inspect large fire suppression systems of up to 600 cylinders. Innovative methods of inspecting leaking cylinders with ultrasonics, enables identification in under 30 seconds using Portalevel® MAX Marine with one person, instead of the traditional 15 minutes, with two people labouriously shutting down the system, dismantling the cylinders and weighing them. Using ultrasonic technology - to pinpoint the liquid level of suppressant agent in the cylinders of the extinguishing system - testing is quicker and easier. The ease of operation in comparison to weighing, increases the ability of more regular and frequent checks, improving fire safety management onboard. Portalevel® MAX  enables its users to go above and beyond minimal regulations compliance, thus becoming industry leaders. Combined with the Portasteele® Calculator, the weight can be found in just 30 seconds more. It is an advanced calculator application, that converts the liquid level height of C02, NOVEC™ 1230 or FM-200® liquefied gaseous extinguishant agent readings taken on the Portalevel® into the agent weight/mass. There is no other similar alternative to weighing available on the market. Furthermore, the Portasteele® can convert an expected agent weight back to the required liquid level allowing users to anticipate where the level should be. This method also enables recording and downloading of the data, adding value to servicing reports and improving the safety management system for a auditable data trail.

 This ultrasonic level indicator allows users to measure stacked rows of cylinders common practice on vessels and offshore installations.

Technical Specifications of Portalevel Intrinsically

Here, we have enlisted technical specs available with this liquid level indicator – Portalevel Max Marine. Give it a look!


  • Width: 82mm
  • Depth: 30mm
  • Height: 160mm
  • Weight: 300grams


+/- 1.5mm (1/8 inch)

Operating Temperature

-20°C to +70°C (68°F to 158°F)

Here are the details for sensor:
TX/RX Dry Sensor

  • Contained within a magnetized sensor applicator
  • Connected by BNC connectors to 1m-length co-ax cable.
  • 14 mm diameter head

Mini Extension Rod Sensor

  • 1 meter in length
  • 12mm in diameter
  • Connected by bnC connectors to 1 m length co-ax cable.

Verifiable Agents

CO2, FM-200™, NOVEC™1230, old Halons such as 1301 and 1211, FE-13™, FE-25™, FE-36™, HFC-225 & 2271

Power Supply

1 x PP3 9V battery (battery life 10 hours)


Membrane control operated, LCD backlit Display measuring 55 x 28 mm


  • NATO Stock Number: 6680-99-275-5292
  • IP Rating 65


  • ISO 19011 Registered
  • Classification Society Approved- RINA
  • CE


  • Main Unit: 3 Years Warranty
  • Lifetime Customer Support
  • Sensor: 1 Year Warranty

Portalevel Max Marine Content
The package of liquid level indicator comes 1 Potalevel MAX unit with other products, such as:

  • 1 Hard Wearing Carrying Case for protection from damage
  • 1 Wet Sensor
  • 1 Mini 12mm Extension Rod
  • 1 Portatherm
  • Ultrasonic Gel
  • Calibration certificate

For further information, download PDF

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