Description
Carbon Monoxide (CO) is a colourless, odourless, tasteless, and non-irritating gas that is highly toxic. It’s often referred to as the “silent killer” because it’s impossible to detect with human senses, and its presence can lead to severe health effects or death without warning.
Key Properties
- Colourless, Odourless, Tasteless: Undetectable by human senses
- Highly Toxic: Interferes with the blood’s ability to carry oxygen
- Slightly Lighter Than Air: It mixes readily with air, but can still accumulate in enclosed spaces if not properly ventilated
- Flammable: Can ignite and form explosive mixtures in high concentrations
Replacement Sensor, Part No. 17124975-H, Properties
Gas Detected (Abbreviation) |
Sensor Type | Measurement | Response time (Seconds) |
Calibration Gas & Concentration |
||
---|---|---|---|---|---|---|
Range | Resolution | T50 | T90 | |||
Carbon Monoxide High (CO High) |
Electrochemical | 0 to 9,999ppm | 1.0 ppm | 8 | 19 | CO 100 ppm |
At the CO levels this sensor is designed for detecting, any individuals using this for personal protection must be wearing respirator equipment. Levels over 1,200ppm would overcome anyone in minutes.
Toxic Gas Sensor Cross-sensitivity Table
Target Gas | Sensor | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CO | CO (H2 Low) |
H2S | SO2 | NO2 | Cl2 | ClO2 | HCN | HCl | PH3 | NO | H2 | NH3 | |
CO | 100 | 100 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 |
H2S | 5 | 5 | 100 | 1 | -40 | -3 | -25 | 10 | 300 | 25 | 10 | 20 | 25 |
SO2 | 0 | 5 | 5 | 100 | 0 | 0 | 0 | – | 40 | – | 0 | 0 | -40 |
NO2 | -5 | 5 | -25 | -165 | 100 | 45 | – | -70 | – | – | 30 | 0 | -10 |
Cl2 | -10 | 0 | -20 | -25 | 10 | 100 | 60 | -20 | 6 | -20 | 0 | 0 | -50 |
ClO2 | – | – | – | – | 20 | 100 | – | – | – | – | – | – | – |
HCN | 15 | – | – | 50 | 1 | 0 | 0 | 100 | 35 | 1 | 0 | 30 | 5 |
HCl | 3 | – | – | 5 | 0 | 2 | 0 | 0 | 100 | 0 | 15 | 0 | 0 |
PH3 | – | – | – | – | – | – | -100 | 425 | 300 | 100 | – | – | – |
NO | 25 | 40 | -0.2 | 1 | 5 | – | – | -5 | – | – | 100 | 30 | 0 |
H2 | 22 | 3 | 0.08 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 0 |
NH3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 100 |
The table above reflects the percentage response provided by the sensor (top row) when exposed to a known concentration of the target gas (column 1).
The numbers were measured under these environmental conditions: 20 °C (68 °F), 50% RH and 1 atm.
The specified cross-interference numbers apply to new sensors only and may vary with time as well as from sensor to sensor.
“-” means no data available.
This table is given as a reference only and is subject to change.