Product Description
120L 4-Gas Calibration Cylinder – 250 PPM CO with Ambient 20.9% Oxygen
This high-capacity 4-gas calibration blend is engineered for facilities requiring elevated carbon monoxide alarm validation across large detector fleets.
With carbon monoxide at 250 PPM and methane at 50% LEL, this mixture confirms toxic and combustible channel accuracy while maintaining atmospheric oxygen reference conditions at 20.9%.
Gas Composition Profile
Hydrogen Sulfide (H₂S): 15 PPM
Carbon Monoxide (CO): 250 PPM
Methane (CH₄): 2.5% (50% LEL)
Oxygen (O₂): 20.9%
Balance Gas: Nitrogen
• 15 PPM H₂S validates lower H₂S alarm programming.
• 250 PPM CO supports high-threshold CO setpoint confirmation.
• 2.5% methane equals 50% LEL for combustible sensor verification.
• 20.9% oxygen provides stable ambient reference calibration.
This configuration isolates elevated CO validation without introducing oxygen displacement variables.
Cylinder Specifications
Cylinder Capacity: 120L (4.2 Cubic Feet)
Fill Pressure: 1050 PSI
Valve Type: C-10
Cylinder Material: Aluminum
Gas Reactivity: Reactive
The 1050 PSI fill supports extended service intervals and minimizes cylinder replacement frequency in high-volume safety programs.
Ideal For
• Centralized calibration stations
• Large industrial safety fleets
• Combustion-heavy facilities
• Utility and energy sector operations
• High-throughput maintenance programs
The 120L configuration is selected when efficiency, output duration, and reduced downtime are operational priorities.
