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Model 205 Dual Beam Ozone Monitor

EPA-certified Federal Equivalent Method (FEM) dual-beam UV absorption at 254 nm with two detection cells to improve precision, baseline stability, and response time.

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EPA-certified Federal Equivalent Method (FEM) dual-beam UV absorption at 254 nm with two detection cells to improve precision, baseline stability, and response time. Lightweight with low power consumption and a quiet, long-life internal air pump. For research and monitoring applications where high precision and/or fast response are required.

  • 0-250 ppm measurement range with 1.0 ppb precision
  • Dual beam for heightened precision and fast measurements
  • 2-second measurement frequency (fastest available on the market)
  • Approved by the EPA as a FEM: EQOA-0410-190

 

Overview
  • Makes use of two detection cells to improve precision, baseline stability, and response time
  • UV light intensity measurements Io (ozone-scrubbed air) and I (unscrubbed air) are made simultaneously
  • Fastest UV-based ozone monitor on the market, while still retaining the small size, weight, and power requirements of our popular Model 202 Ozone Monitor
  • Desirable for aircraft and balloon measurements where high spatial resolution is needed
  • For 10-s averaging, a precision of 1.0 ppb is achieved.  Alternatively, one can choose to average more points internally to obtain even better precision
  • Flash card memory and a long-life, quiet internal air sampling pump are now standard on the instrument
  • Rackmount configuration available as an optional upgrade

 

Features
  • Ozone measured 0-250 ppm by UV absorption at 254 nm, dual beam
  • Quiet long-life internal air pump (now standard)
  • Low power consumption (~8 watt)
  • Internal data logger (EEPROM), logs 16,383 lines of data
  • Real-time clock
  • Both serial and user-scalable analog voltage outputs (4-20 mA current output optional)
  • Flash card memory (SD card) for virtually unlimited, portable data storage
  • Three 0-2.5 VDC analog inputs for logging other measurements, such as external temperature, pressure, and humidity
  • Convenient user interface to microprocessor, including calibration parameters (gain and zero)
  • Selectable measurement time of 2 s or data averaging times of 10 s, 1 min, 5 min and 1 hr (custom averaging times available)
  • DewLine™ for elimination of any water vapor interference, a unique feature of 2B Tech instruments
  • Dual beam feature allows for heightened precision and improved baseline stability for applications where high spatial resolution is required.
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