Application – Hydrogen

Why use Distran Ultra Pro X for hydrogen leak detection?

Hydrogen is enjoying an unprecedented momentum and is used in transportation, storage and many industrial processes. Supplying it to industrial users is a major business around the world. Indeed, many countries directly support investment in hydrogen technologies. For instance, in Europe where the European Commission has set ambitious goals* to increase the use of hydrogen over the next few years.

Hydrogen production, storage and transportation pose technical challenges, as hydrogen is highly flammable and checking for leaks is an essential step for its safe use. Ultra Pro X enables operators to perform fast and safe inspections.


Why check for leaks in hydrogen systems?

Picture: Hydrogen leak on a flange, within a refinery.

Hydrogen is hazardous because of its low ignition energy. It also possesses a very broad flammability range, from 4% to 74% concentration in air, making it dangerous in case of leaks.


At atmospheric pressure, hydrogen has a low energy content per volume compared to liquid fuel or even natural gas. For this reason, hydrogen is stored at high pressure between 200 and 1000 bar (2900 to 14500 psi), but this increases the risk of leaks.

Ultra Pro X detects leaks without requiring contact with the gas, enabling safer inspections

Key advantages for hydrogen leak detection

  • Ultra Pro X is an ultrasonic camera that pinpoints hydrogen leaks from the sound they make. The operator is able to spot leaks from a safe distance, without needing to make contact with the gas
  • Ultra Pro X is also able to quantify leak rate in L/h to help operators prioritize maintenance
  • Ultra Pro X is an ATEX certified camera for zone 2 class IIC, including hydrogen

Key data

  • Phased microphone array of 124 elements to pinpoint leaks at a typical distance of 4 to 6 meters (13 to 20 feet)
  • 1.5 kg single handed device, ATEX certified
  • Detect leaks as small as 1 L/h at 1 meter (6.10-4 cfm at 3 feet) and 5 L/h at 5 meters (3.10-3 cfm at 16 feet)
  • Ability to quantify hydrogen leaks