Underwater Safety: Developing a New Automated Testing System for Underwater Breathing Apparatus
- May 14
- 2 min read
Ensuring the safety of underwater breathing apparatus is critical for divers, whether they are professionals working in challenging environments or enthusiasts exploring the depths. Recently, Tice Engineering collaborated with PCCI to develop an automated testing system designed to check the proper function of underwater breathing apparatus. This new system promises to improve the reliability and efficiency of underwater breathing apparatus.

Why Testing Underwater Breathing Apparatus Matters
Diving gear, especially breathing apparatus, must perform flawlessly under pressure. A malfunction can lead to serious accidents, including drowning or decompression sickness. Regular or development testing ensures that this equipment works as intended.
Traditional testing methods might involve risky manned testing. These methods rely heavily on the skill and attention of technicians, which introduces variability. An automated system addresses these challenges by providing consistent, repeatable, and precise testing.
How the Automated Testing System Works
The system developed by Tice Engineering and PCCI uses advanced sensors and control software to simulate real diving conditions. It measures critical parameters such as breathing pressures, temperature, humidity and inspired carbon dioxide levels. The automated testing process includes:
Simulated Breathing Cycles: The system mimics human breathing patterns ("waveforms") underwater to test the apparatus under realistic conditions.
Breathing Pressure Monitoring: It measures and documents the "work of breathing" the diver has to do to breath.
Data Logging: All test results are recorded digitally, to provide documentation of equipment performance.
Automated Test Sequence: The system can do a sequence of breathing conditions and depths with minimal operator input to allow for a consistent testing protocol.
This approach reduces the time needed for each test and provides detailed data that help technicians quickly identify issues.

Benefits for Divers and Equipment Manufacturers
The automated testing system offers several advantages:
Increased Safety: By detecting faults early, the system helps prevent accidents caused by equipment failure.
Efficiency: Automated tests are faster than manual ones, allowing more equipment to be checked in less time.
Consistency: The system applies the same testing standards every time, eliminating human error.
Traceability: Digital records make it possible to track maintenance history and comply with performance requirements.
For manufacturers, this means improved quality control and confidence in the reliability of their products. For divers, it means peace of mind knowing their gear has passed rigorous, standardized tests.
Future Applications
This technology could also be adapted for other types of breathing apparatus used in firefighting, mining, or hazardous environments.
What This Means for the Diving Community
The introduction of automated testing marks a significant step forward in underwater breathing apparatus. Divers can trust that their breathing apparatus has undergone thorough, objective evaluation. Equipment designers can evaluate new designs and modifications faster and more rigorously.




















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