20 PPB CO Sensor (Low Resolution)
Electrochemical technology is the most effective means of monitoring CO gas. The co sensor collects a sample of air, and when it reaches the working electrode, a chemical reaction occurs, producing electricity via oxidation or reduction. The quantity of power generated is proportional to the amount of carbon monoxide in the sample.
– Prevents mishappenings indoor and outdoor
– Precision of measurement: 20 PPB
– Electrochemical technology-based
– In compliance with ROHS
– 82mm x 20.82mm dimension
1 PPB CO Sensor (High Resolution)
CO Gas Sensors come in a variety of sizes and formats, including PPM and PPB. The sensor may be used in both stationary and portable detecting equipment, as well as EMS and network applications. It uses electrochemical technology to function. The sensor adheres to the RoHS directive (Restriction of Hazardous Substances).
– 20mm diameter size of industrial standard for portability
– 32mm diameter package for fixed site application
– 20mm diameter with extra height for when measuring combustible gases
– Miniature & long-term performance
– Precision of measurement: 1 PPB
What are its unique features?
Compact
Easy to lodge in any device/ instrument due to its small size and ultra-thin packaging. The sensor is ideal for both handheld devices and real-time outdoor monitoring.
Durable
The operational life of sensor is up-to 10 years and is highly accurate.
Highly Responsive
15 seconds is average responsive time for sensor making the senor swift and robust. Hence, this is a good choice for real time monitoring.
Energy Efficient
Sensor demands low power input (0 mW at 0 mV bias) for its function. This decreases the overall energy consumption.
Individual Calibrated
Individual calibration service procures readings with the highest accuracy for every device the sensor is put in.
RoHS Compliant
The sensor is in compliance with the Restriction of Hazardous Substances Directive (RoHS) for electrical and electronic equipment.
CO Sensor Dimension
Technology We Use
What technology is being used in CO Sensor?
The CO gas sensor uses electrochemical gas sensing. Its main components are a working electrode, a counter electrode, and an ion conductor. CO combines with electrolytes and oxidizes to generate water molecules and ions as it reaches the sensor. Sensors produce current as a result of this.
The electric current created by the directed passage of electrons across the wire is precisely proportional to the gas concentration. The gas sensor detects the passage of current between the two electrodes.
Sensor Calibration
Calibration is the process of comparing the actual/standard measurement to the measurement taken with your equipment or device. Calibrating the equipment or instrument improves its accuracy and measurement traceability. The sensor is subjected to CO in the range of interest to precisely calibrate it, and its response is compared to that of a reference Infrared Radiation (IR) CO analyzer. The target gas is compared to the NIST gas cylinder standard. Sensor calibration is carried out under normal ambient settings of 23 + 30°C, 50 + 15% relative humidity, 0.9-1.1 atm pressure, and 0.05m/s air velocity. The sensor’s sensitivity may be affected by changes in the environment, however, this is readily corrected.
Specifications of CO Gas Sensor
| Parameter | Value |
|---|---|
| Measurement Range | 0 to 1,000 ppm |
| Detection Limit | 0.5 ppm |
| Resolution | < 100 ppb (instrumentation dependent) |
| Repeatability | <± 2 % of reading |
| Response Time – T(90) | < 30 seconds (15 seconds typical) |
| Sensitivity | 4.75 ± 2.75 nA/ppm |
| Overload | Passes EN50291-1 Sec. 5.3.6 5,000 ppm overload |
| Expected Operating Life | > 5 years (10 years @ 23 ± 3 °C; 40 ± 10% RH) |
| Operating Temperature Range | -30 to 55 °C (-20 to 40 °C continuous recommended) |
| Operating Humidity Range – non-condensing | 15 to 95% recommended continuous 0 to >95% RH – intermittent |
| Operating Bias | 0 to 5 mV |
| Power Consumption | 10 to 50 uW (circuit & ambient CO dependent) |
About Carbon Monoxide (CO) Gas
Carbon monoxide is a flammable gas that is colourless, tasteless, and odourless. It is the most frequent and dangerous gas found in both indoor and outdoor settings. Humans are unable to smell this gas. Carbon monoxide poisoning is caused by prolonged exposure to this gas at high levels. We can only discover and avoid any disasters caused by this toxic gas by co-monitoring. CO is created both artificially and naturally. CO, on the other hand, is naturally present in the atmosphere but in extremely small amounts. CO, on the other hand, is naturally present in the atmosphere but in extremely small amounts.
Natural causes include:
1. Volcanic eruption
2. Forest fires
Manmade causes include:
1. Combustion by commercial as well as airplanes, tractor, truck, etc.
2. Burning waste
3. Industries working at high temperatures and using carbon compounds as raw products.
Smoking
4. Power plants
Health & Environmental Impacts of CO Gas
Let’s find out the harmful effects of sulfur dioxide gas to our health.
CO is one of the most toxic gases in the environment, and it has a negative impact on humans. The most prevalent and harmful health impact is that it interacts with hemoglobin, preventing oxygen from reacting with hemoglobin and being transferred to the body’s many organs, resulting in organ failure.
It is especially dangerous for heart patients since it causes a lack of oxygen in the body. It makes us feel sick, and one of the most common symptoms is vomiting. CO poisoning can also cause the flu. If not treated promptly, it can result in coma and, in rare circumstances, death due to the severe range of effects on the body.
– Inhibits with binding of oxygen with hemoglobin
– Flu, nausea, and vomiting
– Fatigue
– Dizziness, headache
– Chest pain, reduced brain activity
– Coma and death
CO leads to the development of ground-level ozone, which is a very hazardous gas in and of itself. Not only that, but it has an impact on greenhouse gas concentrations. This is consistent with its function in rising temperatures and shifting habitats.
– Ground-level ozone formation, affects air quality
– Alters concentration of greenhouse gases
– Climate change and affects weather conditions
– Alters with ecosystem functioning
– Global warming and temperature increase
– Capable to affect animal’s reproductive health
Corrective Measures To Reduce CO Gas
CO cannot be readily eradicated with air purifiers or other ways, thus corrective measures are the only option to avoid any exposure in real life. The only way to discover and avoid problems is to monitor them. To decrease exposure and generation of this hazardous gas, preventive measures must be performed.
Some of the measures are mentioned below:
– Ventilation: A well-ventilated room is the easiest and most effective way to tackle CO pollution. Ventilation not only reduces the concentration of co and increases fresh air in the room.
– Public transport: By using public transport we can easily reduce our carbon footprint and hence CO production.
– Alternate fuels: new power sources like hydrogen fuel cars or electric cars are good alternatives to traditional fuel cars as they help reduce emission pollution from these cars.
– Non-fuel alternatives: Using cycles or other alternatives can be effective in keeping a check on the pollution
– Recycling rather than burning waste is an option for reducing CO pollution in the surrounding.
Where is it applicable?
Applications of CO Sensor
Continuous Ambient Air Quality
Monitoring Station
Indoor Air Quality
Monitoring
Industrial CO
Monitoring
Automobile & Aeronautical
Equipment
Residential & Commercial
CO Monitoring
Air Quality Monitoring
Drones
Frequent Asked Questions
(FAQs)
1. Will this sensor come along with a digital board or not?
The sensor does not come with a digital board but if it needed, an additional purchase of a digital board along the controller is recommended. Prana Air provides a USB micro controller and a digital board which both have to be attached.
2. What conditions are used for calibration for CO sensor?
The standard environmental conditions for sensor calibration used are 23 + 3oC temperature, 50 + 15% relative humidity, 0.9-1.1atm pressure and air velocity of 0.05m/s. The alteration in environmental conditions may affect the sensitivity of sensor but is easily compensated.
3. What is the duration of warranty for this sensor?
Prana Air provides sensor with 6 months warranty only on manufacturing defects.
4. What is the mode of connectivity of the sensor to the board?
The sensor has to be connected to a digital board with a micro controller like the DGS to the USB to UART Bridge.
*Note: Prana Air provides the solution for the connectivity of the sensor through a USB miro controller and digital board.
5. How dangerous is carbon monoxide?
As per OSHA guidelines, the personal exposure limit of CO is 50 ppm. This level increases up to 12,800 ppm. Exposure to high levels can generate fatal symptoms, and can cause brain damage, heart problems, and breathing difficulties. When a pregnant woman is exposed to CO, the chances are the fetal blood cells with accept CO and will cause fatal CO poisoning.
6. At what places I am at high risk of CO exposure?
The risk of CO exposure is high in parking lots, garages, paint manufacturing industries, and if the crowd is having a high percentage of smokers. Even in house kitchens, the exposure to CO is high due to chimney installations.
7. What are the symptoms of CO poisoning?
The most common symptoms of CO poisoning involve headache, chest pain, confusion, vision impairment, nausea, and dizziness.
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