General Information on CO

Carbon monoxide (CO) is a colorless, odorless, tasteless and toxic gas. It is produced, among other things, during the incomplete combustion of carbon-containing substances with insufficient oxygen supply. Carbon monoxide is combustible and burns with oxygen to form carbon dioxide. In combustion processes, CO is an important indicator of the efficiency of combustion.The measurement of CO concentration is used, among other things, in stationary and mobile emission monitoring (CEMS) and in limit value monitoring.

Properties for Carbon monoxide (CO)

The molecular weight of carbon monoxide (CO) is about 28.01 g/mol.

Colorless: CO is an invisible gas.
Odor and taste: CO is odorless and tasteless.
Non-irritant: CO does not irritate the respiratory tract, which means it often goes unnoticed.
Lighter than air: carbon monoxide has a lower density than air and can therefore disperse in a room.
Toxic: CO binds with high affinity to hemoglobin in the blood, which impairs oxygen transport in the body and can lead to serious health problems or even death.
Combustible: In high concentrations, CO is flammable.
Sources of formation: CO is formed during incomplete combustion of carbonaceous fuels such as wood, coal, gasoline, natural gas, and oil.
Water soluble: At room temperature and atmospheric pressure, about 0.03 g of CO dissolves in one liter of water

Application examples for CO

Syngas production: CO is often referred to as synthesis gas or “syngas” in combination with hydrogen. This gas mixture serves as an intermediate in the production of ammonia, methanol and other chemicals.
Fischer-Tropsch synthesis: CO and hydrogen can be used in Fischer-Tropsch synthesis to produce liquid hydrocarbons that can serve as fuel or chemical intermediates.
Reducing agent in metallurgy: CO can be used as a reducing agent in metallurgy, especially in iron production in blast furnaces. Here it reduces iron oxide (Fe2O3) to iron.
Acid acid production: CO is used in the Cativa process to produce acid acid from methanol.
Phosgene production: CO is used to produce phosgene, which is used in the production of polyurethanes and other plastics and chemicals.
Carbonyl metal complexes: In organometallic chemistry, carbonyl-metal complexes such as nickel carbonyl and iron pentacarbonyl are often prepared with CO directly bonded to metals.
Detection gas: In some calibrated gas mixtures, CO is used as a detection or calibration gas.
Neurotransmitter: There is evidence that CO acts as a neurotransmitter in very small amounts in the human body, similar to nitric oxide (NO).

Carbon monoxide (CO) is a dangerous gas because it is colorless, odorless, and tasteless, making it imperceptible.

Gas Sensors for the Detection of CO

Overview Products and Measurement Ranges

^(*) Full scale value (F.S.)
For other measuring ranges please refer to our further datasheets
	Measuring range ^(*)
	100 Vol.%	50 Vol.%	30 Vol.%	20 Vol.%	10 Vol.%	5 Vol.%	1 Vol.%	5,000 ppm	2,000 ppm	1,000 ppm	500 ppm	300 ppm	100 ppm	50 ppm	10 ppm	1 ppm
INFRA.sens AK5
INFRA.sens AK20
INFRA.sens AK50
INFRA.sens AK100
INFRA.sens AK250
INFRA.sens AK250TBH
Kombi.sens

Product Previews

Gas Sensor, OEM Product

INFRA.sens AK5

CO2 CO N2O CnHm CH4 CF4

Rugged sensor design
Low power consumption <2W @ 24V
Different Interfaces (RS232, CANbus)
Low drift
MARS-Tool (Wi.Tec Software)

Gas Sensor, OEM Product

INFRA.sens AK20

CO2 CO N2O CnHm CH4

Rugged sensor design
Low power consumption <2W @ 24V
Different Interfaces (RS232, CANbus)
Low drift
MARS-Tool (Wi.Tec Software)

Gas Sensor, OEM Product

INFRA.sens AK50

CO2 CO N2O CnHm CH4

Rugged sensor design
Low power consumption <2W @ 24V
Different Interfaces (RS232, CANbus)
Low drift
MARS-Tool (Wi.Tec Software)

Gas Sensor, OEM Product

INFRA.sens AK100

CO2 CO N2O CnHm CH4 SF6 H2O

Rugged sensor design
Low power consumption <2W @ 24V
Different Interfaces (RS232, CANbus)
Low drift
MARS-Tool (Wi.Tec Software)

Gas Sensor, OEM Product

INFRA.sens AK250

CO2 CO N2O CnHm CH4 SF6

High dynamic range
Low power consumption <2W @ 24V
Different interfaces (RS232, CANbus)
Low drift
MARS-Tool (Wi.Tec Software)

OEM Product

INFRA.sens AK250TBH

CO2 CO

Low detection limit CO without CO2 interference
Temperature controlled at 50°C
Low drift
Pressure compensated
Different interfaces (RS232, CANbus,Analog
MARS-Tool (Datalogger and Controlsoftware)

Gas Sensor, OEM Product

Kombi.sens

CO2 CO N2O CnHm CH4 CF4 SF6 H2O O3 Cl2 SO2 H2S NO2

Optimal adaptation to the measurement task
Combination of IR and UV technology
High accuracy
Low power consumption
Compact size
Space-saving design
Up to 3 gases + O₂
Cross-charging among each other possible

Application

Gas Insulated Switchgear Monitoring

CO2 CO CF4 SF6 SO2

Detection limit (3 sigma) < 0,1 Vol.%
Linearity error < 0,5 % FS (Fullscale)
Including Temperature-compensation 5 - 45 °C
Including pressure compensation 600 - 1200 mbar
Ready to use module

INFRA.sens® AK2/μP compact // INFRA.sens® AK20G compact To save the atmosphere – for quality and leakage measurement In gas-insulated high- and medium-voltage switchgear, sulfur hexafluride (SF6) is used as an …

CF4 Sensor, CO Sensor, CO2 Sensor, Monitoring of gas-insulated switchgear, SF6 Sensor, SO2 Sensor

Application

Elemental Analysis

CO2 CO SO2 SO2

Area saving solution for 2 gases with best technology selection (NDUV & NDIR)
Data rate of 100ms possible
Correction algorithm for SO₂ to CO₂ and vice versa
Long lifetime of radiation source
SO₂ measurement possible with NDIR as well as NDUV

ULTRA.sens® AK100 // INFRA.sens® AK250G compact High precision leads to higher quality In chemistry, the term quantitative elemental analysis is used to describe the quantitative determination of the elements carbon …

CO2 Sensor, CO Sensor, Elemental Analysis, SO2 Sensor

Application

Automotive exhaust gas analysis

CO2 CO N2O CnHm CH4 NO2

For high carbon monoxide ranges additional gas filter for suppression of interfering gases are integrated
Low N₂O measurement without CO₂ interference powered by software algorithm

INFRA.sens® N2O / CH4 / CO2-AK220G/AK5 // INFRA.sens® N2O / CH4 / CO2-AK250G/AK5 Low emission means low ranges Combustion engines emit a large number of gaseous substances that must be …

CH4 Sensor, CnHm Sensor, CO Sensor, CO2 Sensor, Exhaust Analysis, N2O Sensor, NO2 Sensor

Application

Continous Emission Monitoring (CEM)

CO2 CO N2O SO2 NOx

Solution for stationary, mobile and maritime analyzer
Vibration tested according to DIN EN60068-2-64(04/2009)

ULTRA.sens® NOx / SO2-AK100 TBH Environmental Monitoring must not be expensive In combustion processes, for the generation of electrical energy and heat, a variety of gaseous components are produced, such …

CEMS, CO Sensor, CO2 Sensor, Continuous emission monitoring, N2O Sensor, NOx Sensor, SO2 Sensor

Application

Renewable Gas Monitoring

CO2 CO CH4 H2S

Wide range of solution in the area of renewable energy sources and infrastructure
Development in progress for a new kind of portable H₂S detektor

INFRA.sens® AK20Gcompact & ULTRA.sens® H2S Modul Measure the future energy sources Biogas is produced by fermentation of organic waste and renewable resources (NAWAROS). The main components of biogas are methane …

Biogas, Biogas Analysis, CH4 Sensor, CO Sensor, CO2 Sensor, H2S Sensor, Renewable gas monitoring

Application

Customer Specific Projects

CO2 CO N2O CnHm CH4 CF4 SF6 H2O SO2 O3 Cl2 SO2 H2S NOx NO2 NO

You have a measurement task that goes beyond the usual standards and are looking for a competent partner?
Please contact us. Your measurement task is our challenge!
The employees of Wi.Tec-Sensorik GmbH have extensive expertise in the field of industrial gas measurement technology and sensor signal processing.

Costumer specific projects, CF4 Sensor, CH4 Sensor, Cl2 Sensor, CnHm Sensor, CO Sensor, CO2 Sensor, H2O Sensor, H2S Sensor, N2O Sensor, NDIR Sensor, NDUV Sensor, NO Sensor, NO2 Sensor, Non OEM, NOx Sensor, SO2 Sensor

Application

Humidity Measurement

CO2 CO N2O CnHm CF4 SF6 H2O

Detection limit: < 5 ppm H₂O
Fast response time (t90 < 10 sec)
Corrosion resistant design possible (processline)
Low maintenance operation
Can be combined with other gas measurements such as CO₂, CO, C_nH_m, CH_{4_etc.}

INFRA.sens® CO2 / HC / H2O – AK250GC / TBH piped Compact alternative to laser and dew point mirror sensors Humidity measurement is an important component of gas measurement technology, …

CF4 Sensor, CnHm Sensor, CO Sensor, CO2 Sensor, H2O Sensor, Humidity measurement, N2O Sensor, SF6 Sensor

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