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EC9830T CO trace analyzer

EC9830T CO trace analyzer
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TRACE CARBON MONOXIDE The Ecotech Model EC9830T Carbon Monoxide (CO) Analyser incorporates Gas Filter Correlation (G.F.C.) technology with infra red photometric The analysers sensitivity has been increased with the number of passes increased from 20 to 28. Detection of sub-ambient levels of CO is made challenging technology minimises this interference and enables the instrument to measure CO in ambient air in CO background (trace) measurements in ambient air are usually made in the range of 350-500 ppb (levels that represent the range of global CO mixing ratios in the unpolluted atmosphere). Heated Hopcalite® scrubbers are used to convert CO to C02. Additional external scrubbers can also be used on sites that are heavily polluted. • Complies with U.S. EPA approved (Automated • Sample gas concentration measurements are automatically corrected for temperature and pressure changes and can be displayed in units of • Each analyser incorporates a 12 hour 25ppb zero drift function which utilises a custom calibrated fifth order polynomial to make corrections over the range of 0 - 3000 ppb with linearity of < 1%. • Fast response and high signal to noise ratio is achieved through the use of a low noise IR • Up to 100 backgrounds (zero) can be stored for diagnostic purposes. • Calibration curves are used to ensure that a linear signal output is achieved over two wide • Water is removed from the sample gas through the use of an optonal permeation dryer. The dryer reduces sample gas dew point to -30-C thereby reducing water interference to <2ppb in the • Auto-zero routine allows the analyser to periodically check and correct for background illumination thereby virtually eliminating zero • High sensitivity is achieved by the use of a 6m path length cell. • Kalman digital filter continuously provides the best compromise between response time and noise • Operating temperature range is 20 - 30°C with stability of ±5°C If the internal temperature of the instrument changes by more than ±4°C then an automatic background is undertaken calibrations from an external pressurised source.

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Ranges display: Data display: Large Graphic LCD display, with unit selection mg/ 0 - full scale from 0 - to 0 - 20 ppm with menu selectable offset of 0%, 5% or 10%. Auto-ranging between two user specified full-scale <12ppb RMS with Kalman or 300 sec filter active. Lower detectable limit: 20 ppb with with Kalman or 300 sec filter active. Linearity: < 1% full scale Precision: 20 ppb or 0.1 % of reading which 24 hours; less than 50 ppb 7 days: less than 100 ppb 24 hours less than 0.5% of reading 30 days less than 1.0% of reading Temperature/Pressure compensation: Temperature/Pressure...

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