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.