VA-5000 / VA-5000WM Multi-Component Gas Analyzer

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The Multi-Component Gas Analyzer VA-5000 Series

is an all-round analyzer that satisfies measurement needs as required for environmental monitoring, energy development support, quality controls, and continuous emission monitoring, etc. The VA-5000 Analyzer can be configured with up to 4 detector modules within a single case. Many combinations of detector modules with a wide selection of ranges allows this series of analyzers to be used for a variety of applications. The VS-5000 Sample Gas Conditioning Systems are designed to support the VA-5000 Analyzers by proving the optimal sample conditions for measurement. We also have wall mounted type analyzer (VA-5000WM) that enables to install in a limitted installation space.


  • Versatility for Various Applications・ Simultaneous measurement of up to four gas components. (CO, CO2, CH4, N2O, NO, SO2, NH3, NOx, O2, Siloxane)
    ・ Auto pressure compensation provides stable measurements by compensating for barometric pressure changes
    ・ Employs a thermostatically controlled gas flow sensor to increase accuracy of measurements.
  • Ease of Use
    ・ A 5.7 inch LCD touchscreen provides analyzer information measurement status, trend graphs, diagnostics and analyzer settings
    ・ Detector modules can be added or replaced quickly
    ・ A front panel USB allows instrument instant settings to be logged in addition to sample data
  • Additional Features
    ・ Auto-calibration
    ・ Blowback control
    ・ Self-diagnosis
    ・ Data logging
    ・ Analyzer configuration settings
    ・ Multiple analog and digital outputs (option)
  • VA-5000 Series Sample Gas Conditioning Systems
    ・ Designed to support the VA-5000 Series Analyzers
    ・ Convenient 19-inch rack mount configuration
    ・ Integrates pumps, coolers, filters, flow controls, NOx converters, etc., within a single case

VA5000 Specificatons

Application example:

Gas monitoring Power Plant

For the stable operation of power plants and supply of electricity

Meeting electricity demand requires the stable operation of power plants, stable supply of electricity, and more accurate management of combustion efficiency. HORIBA is contributing to the analysis of the power generation process with its extensive product lineup ranging from stack gas analysis needed for the power generation process to the waste water treatment.


ApplicationMeasurement ComponentsModel
1Combustion efficiency management by OmeasurementO2NZ
2Combustion efficiency management by COmeasurementCOENDA
3NOx measurement after denitration processNOxENDA
4NH3 measurement after denitration process for controling ammonium additive amountNH3ENDA
5SOmeasurement after desulfurization  processSO2ENDA
6Stack gas measurement after denitration and desulfurization  processNOx, SO2, CO, CO2, O2ENDA
Dust measurementDustEM-D
7For intermittent measurement instead of ENDANOx, SO2, CO, CO2, O2PG



Automotive, Bio Energy, Bioprocessing, Chemical, Environmental & water treatment, Fermentations, Food & Beverages, Forensics, Laboratories, Petrochemical, Pharmaceutical & Bio Pharma, Polymers, Power Plants, Pulp & Paper, Refinery, Security, customs, fire department, drug agencies, Semi-Conductor, Steel Plants, Sterilization, Universities


Environmental Protection


CH4 – Methane, CO – Carbon Monoxide, CO2 – Carbon Dioxide, N2O – Nitrous oxide, NH3 – Ammonia, NO – Nitric oxide, NOx – Nitrogen oxides, O2 – Oxygen Gas, siloxane, SO2 – Sulfur dioxide