Flameproof Thermal Conductivity Gas Analyzer <ZAFE>
Ideal for H2, Ar, and He measurement
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Easy-to-see LCD
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RS-232C communication (option)
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Compact, panel mount design
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Automatic calibration (option)
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Interference compensation (option)
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Concentration alarm (option)
High/low limit, high-high limit, or low-low limit -
Range switching (option) by key on the front panel or by an external contact input.
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NEPSI (Exd IIC T6Gb) certified
Applications
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H2 monitoring in semiconductor manufacturing equipment, hydrogen generation equipment, calcining furnaces, and the like.
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Ar, He, CH4 measurement in gas generation plants
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He measurement in superconducting devices
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Ar measurement in air-separation plants
Principle
This thermal conductivity gas analyzer measures gas concentration by utilizing the difference of thermal conductivities between two gas components. In the detector, there are a reference chamber and a measuring chamber, in each of which a thin platinum wire is stretched. The reference chamber is filled with reference gas. The sample gas is flowed through the measuring chamber. Each platinum wire composes a bridge circuit in combination with an external fixed resistor, and is heated by flowing a constant current. When there is a change in the concentration of the component under measurement, the thermal conductivity of sample gas will change to affect the temperature of the platinum wire in the measuring chamber. The resulting thermal change is taken out as a change in electric resistance, according to which the concentration of measured gas is calculated.
Specifications
Gas Analyzers
• Double-beam NDIR sensor + O2 sensor
• Long-term stability
• Continuous measurement of up to 5 components
• Single-beam NDIR sensor with sample switching system + O2 sensor
• Excellent zero-point stability
• Continuous measurement of up to 5 components
• Monitors up to 7 gas concentrations
• Space-saving design
• Direct insertion type
• Continuous measurement of HCl, NH3, O2, CO, CO2, and CH4 in flue gas
Real-time and quantitative analysis of particle size, number of particles, composition (sulfate, nitrate, black carbon) of aerosol (PM2.5) in the air
• Continuous measurement of O2 in combustible gas
• Ideal for combustion control
• Double-beam NDIR sensor
• Continuous measurement of up to 5 components
• Single-beam NDIR sensor
• Compact and light weight
• Continuous measurement of up to 5 components
• Single-beam NDIR sensor with sample-switching system
• Continuous measurement of up to 5 components
• Single-beam NDIR sensor with sample-switching system
• Continuously measures low concentration (0•5 ppm) gases
• Single-beam NDIR sensor
• Compact and light weight
• Continuous measurement of up to 5 components
Best suited for H2, He, and Ar measurement
Ideal for H2, Ar, and He measurement
• Fast response
• Communication function
• Ideal for measuring oxygen in combustible gas
• Insertion type
• No need for gas sampling device
• Measures O2 in incombustible gas
In-situ oxygen analysis requires no gas sampling device
Ideal for combustion control in industrial boilers and furnaces
• Insertion type
• No need for gas sampling device
• Measures O2 in incombustible gas
• Simultaneously measures up to 5 components among NOx, SO2, CO, CO2, CH4, and O2
• No need for gas sampling device
Simultaneously measures up to 4 components among CO, CO2, CH4, and O2
Continuous measurement of CO, CO2, CH4 in heat treatment furnace
• Measures CO2 in the air
• Analog output and alarm output
Measures H2S, CH4, CO2, and O2 generated in biogas plants
• Double-beam NDIR sensor
• Compatible to obsoleted ZRG
• Single-beam NDIR sensor
• Compatible to obsolated ZRH
• Single-beam NDIR sensor
• Compatible to obsolated ZRJ
Gas extractor, pump, cooler, filter, converter, etc.
