Thermo Scientific 42i NO-NO₂-NOₓ Analyzer

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Thermo Scientific 42i

Measured parameters: NOₓ (Nitrogen Oxides)

Measurement method: Chemiluminescence

Thermo Scientific 42i iSeries chemiluminescence NOx analyzer; standard, high-level (HL) and trace-level versions. Sold and serviced in Türkiye by Tetra.

Installation, calibration, spare parts and service in Türkiye come from Tetra; cabinet and panel integration can be done at our İzmir facility.

Technical information

Measurement principle
Chemiluminescence
Measured gases
NO, NO₂, NOₓ
Preset ranges
0-0.05 ppm to 100 ppm (standard configuration)
Minimum detection limit
0.40 ppb (60 s average)
Supply
220 VAC, 50/60 Hz
Converter
Molybdenum

42i is the chemiluminescence NO-NO₂-NOₓ analyzer of the Thermo Scientific iSeries family. NO is measured by the light it emits when reacting with ozone; NO₂ is converted to NO in a converter to obtain total NOₓ. The same instrument family can be configured as standard, high-level (42i HL) and trace-level.

It is used at ambient air monitoring stations, in quality control laboratories and in process/emission applications. It shares the same measurement method as the new-generation 42iQ model.

42i features

  • Simultaneous chemiluminescence measurement of NO, NO₂ and NOₓ
  • Standard, high-level (HL) and trace-level configurations
  • Molybdenum converter; permeation oven, internal zero/span and Drierite scrubber options
  • Optional analog output, multi-channel current output and digital input/output cards
  • Bench or rack (EIA) mounting

Spare parts and consumables

Write to us for spare parts and consumables; the Tetra service team supplies and replaces the right original parts for your instrument.

Ask about spare parts →
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