Using chemiluminescence technology, the Model 42i-D measures the amount of nitrogen oxides in the air from sub-ppb levels up to 100ppm. The Model 42i-D is a single chamber, single photomultiplier tube design that measures NOx only.
Chemiluminescence technology
Standard dual range and auto ranges
10-second response time
Temperature and pressure correction
User selectable alarm levels for concentration
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
Voltage options:
  A: 115VAC 50/60Hz (standard)
  B: 220/240VAC 50/60Hz
  J: 100VAC 50/60Hz
Internal zero/span:
  N: No zero / span valve
  Z: Internal zero / span valves
Converter options:
  M: Molybdenum (standard)
  S: Stainless steel
Sample handling:
  S: Standard plumbing (standard)
  A: Ammonia scrubber
Ozone handling:
  D: Drierite scrubber (standard)
  P: Permeation dryer
Optional I/O:
  A: None (standard)


C: I/O expansion board (4-20mA outputs - 6 channels, 0-10V inputs - 8 channels)
Mounting Hardware:
  A: Bench mounting (standard)
  B: Ears and handles, EIA
  C: Ears and handles, Retrofit
Compliance: ETL, CSA, UL, CE