NO, NO2, NOX Analyzer (Ei400)
High performance nitrogen oxides analyzer with the latest CLD technology

Using the proven Chemiluminescence (CLD) measurement principle combined with the latest detector technology, the Ei400 NO/NO2/NOx Analyzer measures the reaction between nitric oxide and ozone to determine the nitric oxide concentration in gas.
Incorporating a blue light LED or thermal converter into the sample path converts nitrogen dioxide into nitric oxide, thus allowing for the measurement of total nitrogen oxides (NOx) concentration.
Features
Wide dynamic measurement range (multiple orders of magnitude)
Extremely selective and long-lasting blue LED converter eliminates ammonia bias
Solid-state detector
Sample extraction via educator eliminates need for vacuum pump
7” (or 10” optional) color touchscreen display
Auto high-frequency zero correction eliminates drift
High sensitivity
Automatic calibration
Low number of wear items for improved reliability
Adaptive signal filtration allows for low noise while maintaining fast response time
Automatic temperature and pressure compensation
Modbus TCP/IP communication and analog outputs (0-10V or 4-20mA)
Remote access capabilities
Front panel USB for firmware upgrades, data download, or peripheral devices
Innovative InteliSense™ software platform across all Ei analyzers for consistent, simple, and user-friendly interface, operability, and data display
InteliSense Software Features:
-Modern, user-friendly interface
-Simple set-up and operation
-Selectable units (ppm, mg/m3, or %)
-Customizable graphical data display
-Instrument Alarms
-Data logging
-Error logging
-Zero and span logging
-“Dark Mode” option
Available Options
Thermal Converter
External Vacuum Pump
10” Display
Enclosure Options:
-19” Rack-Mount Enclosure
-Tabletop Enclosure
-Wall-Mount Enclosure
-Portable Enclosure
Ammonia Measurement Function (only available in presence of low NOx concentration)
Add-On Gas Measurements:
-O2, H2O, CO, CO2, SO2, CH4, H2S, others
Technical Specifications
Related Products
Typical Applications
Continuous Emissions Monitoring (CEMS)
Process Monitoring
Fuel Cell Analysis
Engine Testing
Air Quality and Industrial Hygiene
Safety
Vehicle Emissions
Combustion Efficiency
Others
Available Configurations
19" Rack

Wall Mount

Tabletop

Portable

Downloads

Ei400 NO, NO2, NOx Analyzer Flyer

Application Questionnaire