ASO "Automatic Shut Off" - Safety Monitoring System
Safe Arc Technology provides the safest hot work environment inside of a hazardous location in the industry. The heart of our hot work safety system is the ASO.

The ASO is a monitoring system that automatically stops hot work within the pressurized welding enclosure and alerts personnel of a potentially unsafe condition.

All hot work is disabled if any one of the following conditions exist:
  • Loss of positive pressure inside the enclosure
  • A deficiency or excess of oxygen within the enclosure
  • Explosive gases above the lower explosive limit inside the enclosure
  • Explosive gases above the lower explosive limit at ventilation intake
  • For offshore platforms - when the emergency shutdown (ESD) system is activated anywhere on the platform
  • Loss of power (failsafe)