Thermo Scientific™

Model 42i-Y NOY Analyzer

 Related applications:
Measure the amount of nitrogen oxides in the air from sub-ppb levels up to 1000 ppb using chemiluminescence with the Thermo Scientific™ Model 42i-Y NOY Analyzer.The Model 42i-Y is a single chamber, single photomultiplier tube design that measures NOY which includes most oxides of nitrogen with the exception of NH3 and N2O.

The 42i-Y complies with all USEPA NCore Network requirements for the measurement of NOy.

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Key Features:

  • Standard dual range and auto ranges
  • 10-second response time
  • Temperature and pressure correction
  • User selectable alarm levels for concentration

iSeries Advantage:

  • Ethernet connectivity for efficient remote access
  • Enhanced user interface with one button programming and large display screen
  • Flash memory for increased data storage and user downloadable software
  • Enhanced electronics design optimizes product commonality
  • Improved layout for easier accessibility to components

Ordering Information:

Voltage options:

A = 115 Vac 60 Hz

B = 220/240 Vac 50Hz

C = 220 Vac 60 Hz

D = 115 Vac 50 Hz

J = 100 Vac 50/60 Hz

Internal zero / span:

N = No zero / span assembly (standard)

Z = Internal zero span assembly

Converter options:

M = Molybdenum (standard)

Sample handling:

S = Standard plumbing (standard)

Ozone handling:

D = Drierite scrubber (standard)

P = Permeation dryer

Optional I/O:

A = None (standard)

C = I/O expansion board

Mounting Hardware:

A = Bench mounting (standard)

B = Ears and handles, EIA

C = Ears and handles, Retrofit

User services

Order status 
Review your order status.

Service offerings
Overview of all services including support plan options, repairs and calibrations, spare parts and technical training.

Factory Depot 
Request an RMA number and send your instrument to our factory for repair.


Manuals & protocols