20 PPB CO Sensor (Low Resolution)
The best method for measuring CO gas is electrochemical technology. When an air sample from the co sensor contacts the working electrode, a chemical reaction takes place that either causes electricity to be produced through oxidation or reduction. The amount of carbon monoxide in the sample has a direct relationship to the amount of electricity produced.
– Prevents mis-happenings 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 are available in a range of shapes and sizes, including PPM and PPB. The sensor can be utilised in detecting devices that are both stationary and portable, as well as in EMS and network applications. It works with electrochemical technology. The sensor follows the RoHS guidelines (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?
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.
The operational life of sensor is up-to 10 years and is highly accurate.
15 seconds is average responsive time for sensor making the senor swift and robust. Hence, this is a good choice for real time monitoring.
Sensor demands low power input (0 mW at 0 mV bias) for its function. This decreases the overall energy consumption.
Individual calibration service procures readings with the highest accuracy for every device the sensor is put in.
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?
Electrochemical gas sensing is employed by Prana Air CO sensor. A working electrode, a counter electrode, and an ion conductor make up its primary parts. As CO reaches the sensor, it mixes with electrolytes and oxidises, producing water molecules and ions. As a result, current is produced by sensors.
The directed flow of electrons over the wire produces an electric current that is inversely proportional to the gas concentration. The movement of current between the two electrodes is picked up by the gas sensor.
Comparing the measurement made with your equipment or device to the actual/standard measurement is the process of calibration. The equipment or instrument should be calibrated to increase accuracy and measurement traceability. To correctly calibrate the sensor, it is exposed to CO in the desired range. The sensor’s response is then compared to that of a reference Infrared Radiation (IR) CO analyser. The NIST gas cylinder standard is used to compare the target gas to. The standard environmental conditions for sensor calibration are 23 + 30 °C, 50 + 15% relative humidity, 0.9–1.1 atm pressure, and 0.05 m/s air velocity. Changes in the surroundings may impair the sensor’s sensitivity, although this may be easily fixed.
Specifications of CO Gas Sensor
|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
A combustible gas with no flavour or smell, carbon monoxide is colourless and odourless. It is the most prevalent and harmful gas that may be found both inside and outside. This gas is undetectable to humans. Long-term exposure to this gas at high concentrations results in carbon monoxide poisoning. Only by jointly monitoring will we be able to identify and avert any disasters brought on by this hazardous gas. Both intentionally and naturally, CO is produced. Contrarily, very little levels of CO are naturally present in the atmosphere. Contrarily, very little levels of CO are naturally present in the atmosphere.
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.
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 dangerous chemicals in the environment, and it harms people. The most common and detrimental effect on health is that it interacts with haemoglobin, preventing oxygen from reacting with haemoglobin and travelling to the body’s numerous organs, leading to organ failure.
Since it results in a lack of oxygen in the body, it is particularly hazardous for cardiac patients. One of the most typical symptoms is vomiting, which makes us feel sick. The flu can also result from CO poisoning. Due to the wide spectrum of effects on the body, if it is not treated right away, it can cause coma and, in rare instances, death.
– Inhibits with binding of oxygen with hemoglobin
– Flu, nausea, and vomiting
– Dizziness, headache
– Chest pain, reduced brain activity
– Coma and death
Ground-level ozone, which is a very dangerous gas in and of itself, is produced as a result of CO. Additionally, it affects the levels of greenhouse gases. This is consistent with how it functions in changing environments and rising temperatures.
– 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
Corrective procedures are the only approach to prevent exposure to CO in the real world since it cannot be easily eliminated using air filters or other methods. Problems must be tracked down in order to be identified and avoided. Preventative actions must be taken to reduce exposure and the production of this dangerous gas.
The following list of measurements is only a sample:
– Ventilation: The simplest and most efficient technique to combat CO pollution is to ensure that a room is properly ventilated. Ventilation increases fresh air in the space while also lowering the co concentration.
– Using public transportation: We may simply minimise our carbon footprint and, consequently, our CO production by using public transportation.
– Alternative fuels: Modern power sources like electric and hydrogen fuel vehicles are suitable replacements for conventional gasoline-powered vehicles because they lessen the pollution that these vehicles emit.
– Alternatives without fuel: Using bicycles or other alternatives can help reduce pollution.
– Recycling trash instead of burning it can help to lower CO pollution in the area.
Where is it applicable?
Applications of CO Sensor
Continuous Ambient Air Quality
Indoor Air Quality
Automobile & Aeronautical
Residential & Commercial
Air Quality Monitoring
Frequent Asked Questions
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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