Industrial Electronics

Ultrasonic liquid-level indicator for the marine environment

26 January 2023

The Coltraco Portalevel MAX MARINE PLUS introduced by Saelig Company is a portable, battery-powered liquid level indicator designed to non-invasively, accurately and reliably measure the level of agents contained within a cylinder. Created specifically for use on marine vessels and similar environments, it can accurately measure liquid levels through the walls of closed cylinders, such as fire suppression cylinders, while still in place. The UL-approved indictor is suitable for carbon dioxide, most liquified fire-suppressing clean agents, halons and most other liquids.

The MAX MARINE PLUS, packaged in a neat, ergonomic, rugged enclosure, allows a wide range of control for testing the levels of liquids in fire suppression systems, accurate to within ±1.5 mm. A handheld sensor wand can be moved on the surface of the cylinder to determine the exact position of gas to liquidSource: Saelig CompanySource: Saelig Company transition. A sensor extension rod is also supplied to enable easy testing of multiple banked rows of cylinders, often found stacked this way on board seafaring vessels. The MAX MARINE PLUS is capable of testing compressed liquids, including fire suppression agents such as CO2, FM200, NOVEC 1230, Halon agents, FE-13, FE-25, NAF S III and all core Clean Agent systems.

Suitable for measuring the liquid level inside most single-skinned cylinders, the Portalevel MAX MARINE PLUS is most widely used as a replacement for the tedious weighing of fire suppression and other cylinders during installation and servicing, or removing the need to fit internal, invasive liquid level ‘float’ devices. Once the liquid level height inside a container has been found, the agent weight can also be determined using a separate stand-alone 7 inch hand-held Portasteele calculator tablet, which is designed to quickly convert liquid height to agent weight when fed the cylinder size, agent type and temperature.

Accurately monitoring the liquid level in fire cylinders is a vital aspect of any fire suppression system during maintenance schedules. Often the vessel’s crew is not qualified to dismantle a fire system to weigh the cylinders. Having a quick and easy-to-use quantifying method using the Portalevel MAX MARINE PLUS is an optimal, accurate and efficient way of delivering assured fire safety onboard, thus protecting the crew.

Made in the U.K. by ultrasonics specialists Coltraco Ultrasonics, and supplied to navies around the world, the compact (6.3 inch × 3.2 inch × 1.2 inch; 10.6 oz) Portalevel MAX MARINE PLUS comes in a handy, sturdy carry case. It is the easiest way to reliably check liquid levels in almost any cylinder type.

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