Gas
|
Measuring Range
|
Accuracy
* Which ever
is greater
|
Gases & Detectable Ranges
|
Standard Confined Space Gases
|
Hydrocarbons (CH4, std)
|
0 – 100% LEL
|
± 5% of reading or ± 2% LEL (*)
|
0 – 5% Vol. (CH4)
|
0 – 50,000 ppm
|
± 50 ppm or
± 5% of
reading (*)
|
Oxygen (O2)
|
0 – 40% Vol.
|
± 0.5% O2
|
Carbon Monoxide (CO)
|
0 – 500 ppm
|
± 5% of reading or ± 5 ppm CO (*)
|
Hydrogen Sulfide (H2S)
|
0 – 100 ppm
|
± 5% of reading or ± 2 ppm H2S (*)
|
Toxics
|
Ammonia (NH3)
|
0 – 75 ppm
|
± 10% of reading or ± 5% of full scale (*)
|
Arsine (AsH3)
|
0 – 1.5 ppm
|
Chlorine (Cl2)
|
0 – 3 ppm
|
Hydrogen Cyanide (HCN)
|
0 – 15 ppm
|
Phosphine (PH3)
|
0 – 1 ppm
|
Sulfur Dioxide (SO2)
|
0 – 6 ppm
|
IR Sensors
|
Carbon Dioxide (CO2)
|
0 – 10,000 ppm
0 – 5% Vol.
0 – 60% Vol.
|
± 5% of reading or ± 2% of full scale (*)
|
Methane (CH4)
|
0 – 100% LEL/
0 – 100% Vol.
|
Hydrocarbons
|
0 – 100% LEL/
0 – 30% Vol.
|
PID Sensors
|
VOC
|
0 – 2,000 ppm
0 – 50 ppm
|
—
|
TC Sensors
|
Methane (CH4)
|
0 – 100% Vol.
|
± 5% of reading or ± 2% of full scale (*)
|
Hydrogen (H2)
|
0 – 10% Vol.
0 – 100% Vol.
|
Hydrogen Specific
|
Hydrogen (H2)
|
0-100% LEL
0-40,000 ppm
|
± 5% of reading or ± 2% of full scale (*)
|