Using gas filter correlation technology, the Model 48i-TLE measures the amount of carbon monoxide in the air. The Model 48i-TLE is based on the principle that carbon monoxide (CO) absorbs infrared radiation at a wavelength of 4.6 microns. Because infrared absorption is a nonlinear measurement technique, it is necessary for the instrument electronics to transform the basic analyzer signal into a linear output. Instrument uses an exact calibration curve to accurately linearize the instrument output over any range up to a concentration of 1000ppm.
Gas filter correlation technology
Standard dual range and auto ranges
Self aligning optics
Temperature and pressure correction
User settable 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
Choose from the following configurations/options to customize:
Voltage options:
  A: 120 VAC 50/60 Hz
  B: 220 VAC 50/60 Hz
  J: 100 VAC 50/60 Hz
Internal zero:
  C: Internal zero / span valves w/zero air scrubber
Filter Wheel Purge:
  P: Filter wheel purge setup
Optional I/O:
  A: No optional I/O (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
Certifications: U.S. EPA (RFCA-0981-054)