Speed up Your Fire Servicing with Portasteele® Calculator

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Are you used to reporting on fire system servicing by recording the weight?

If you are, then the Portasteele® CALCULATOR is what you need. Together with our Portalevel® MAX PLUS you never need to lift a cylinder again!

The combined use of Portalevel® MAX Plus with Portasteele® CALCULATOR complies with ISO 14520, ISO 6183, NFPA 2001, NFPA 25 and many other related standards.The Portasteele® CALCULATOR will:

  • Calculate and report the mass of agent in your fire suppression systems
  • Within 1% accuracy
  • Providing traceability to your measured liquid level to agent mass on the cylinder’s label

A Quick Here’s How:

  1. Find the liquid level in the cylinder with the Portalevel® MAX PLUS
  2. Input your cylinder details in the Portasteele® CALCULATOR
  3. Add in the liquid level height and immediately convert to agent mass (metric and imperial units available).

Now Portasteele® CALCULATOR has confirmed the agent mass, you can:

  • Record serial numbers of individual cylinders and track the cylinder test records against past/ future testing records
  • Export your results straight to email or USB
  • Compare your measurements against regulations to see if your cylinder needs refilling or replacing – the percentage mass difference is calculated automatically

See the Portasteele® CALCULATOR in action during our LIVE DEMONSTRATION last week:

Get in touch

You can reach us anytime via phone or email, we aim to respond to all enquiries within 24 hours (excluding weekends and bank holidays)


Come say hello at our Technical Laboratory.

Coltraco Ultrasonics
NETPark Research Institute
Joseph Swan Road
TS21 3FB

United Kingdom


Monday - Friday (excluding bank holidays) from 8:30am to 6:00pm, UK.

Tel (Sales & HQ): +44 20 7629 8475
Tel (Technical): +44 1740 618 240