Product Description
66L CO, CH₄ (20% LEL), and O₂ Calibration Gas – Precision Detector Calibration
This 66L calibration gas cylinder is designed for precision calibration and controlled detector verification, featuring a lower 20% LEL Methane concentration and ambient oxygen level (20.9%).
Unlike higher LEL mixes, this blend is ideal for fine-tuning sensor response, validating detector accuracy, and ensuring proper calibration without pushing sensors toward higher alarm thresholds.
The mixture includes:
- 50 PPM Carbon Monoxide (CO) for toxic gas calibration
- 1.0% Methane (CH₄) (20% LEL) for controlled combustible gas response
- 20.9% Oxygen (O₂) to simulate normal atmospheric conditions
Gas Concentrations
- Carbon Monoxide (CO): 50 PPM
- Methane (CH₄): 1.0% (20% LEL)
- Oxygen (O₂): 20.9%
- Balance Gas: Nitrogen (N₂)
Cylinder Specifications
- Cylinder Size: 66L
- Pressure: 1150 PSI
- Cylinder Material: Aluminum
- Valve Type: C-10
- Reactivity: Non-Reactive
Applications
- Precision gas detector calibration
- Sensor accuracy verification
- Low-level LEL calibration scenarios
- Industrial hygiene monitoring
- Routine detector performance checks
Why This 20% LEL Calibration Gas
- Lower LEL concentration for controlled calibration
- Simulates real atmospheric oxygen conditions (20.9%)
- Ideal for fine-tuning detector sensitivity
- Reduces risk of overexposure during calibration
Custom Calibration Gas Available
Need a different LEL level or gas mix? We provide custom calibration gas blends with fast turnaround.
Other Details
Warranty 48 monthsProduct Videos
Custom Field
Size 66L
Gas Composition CO / CH4 / O2
Cylinder Material Aluminum
Cylinder Pressure 1150 PSI
Gas Reactivity Non-Reactive
Carbon Monoxide (CO) Concentration 50 PPM
Methane (CH₄) Concentration 1.0% (20% LEL)
Oxygen (O₂) Concentration 20.9%
