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The determination of hydrocarbons in ambient air is performed for a variety of reasons; the presence of hydrocarbons such as benzene, toluene or isomers of xylene in higher concentrations can effect human health.
Hydrocarbons also act as ozone precursors leading to the formation of ozone and photochemical smog, other hydrocarbons such as mercaptans may create odour problems even in low concentrations.
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Ecotech offers a variety of different instrument alternatives for the determination of hydrocarbons that can be integrated into our air quality monitoring systems. Ecotech works closely with a number of the world’s leading manufacturers of hydrocarbon analyzers and gas chromatorgraphs and is able to provide an integrated instrument solution.
Benefit
- Customisable to measure specific hydrocarbons (>40 individual hydrocarbons)
- Ease of integration with Ecotech’s Air Quality Monitoring System
- Continuous measurement at ppt concentrations
- Designed for use in remote monitoring stations
- Choice of detectors including Photoionistion (PID) Detectors or Flame Ionisation Detector (FID)
Total Hydrocarbons
Ecotech are a provider of a wide variety of total hydrocarbon analyzers for the measurement of total hydrocarbons in the ambient air. These analyzers are based on Flame Ionization Detection (FID) and allow continuous, trouble free sampling of total hydrocarbons. These analyzers are designed to minimize operator time on-site through the following features:
- Instrument menus and processes accessible remotely
- Can perform all calibrations automatically
- Automatically sends alarms when faults occur
Ecotech also supply analyzers for monitoring total hydrocarbons in stack/high concentration environments.
Features
- Flame ionization detector.
- 3U case, 19” (48.3cm) rack mountable.
- Automatic calibration at user-defined intervals.
- Internal, multipoint sampling option.
- Electronic control of fuel, air and sample.
- Electronic back-pressure regulator with sample bypass system ensures fast response.
- Discrete, multilevel concentration & fault alarms.
- Automatic FID ignition, with automatic shut-off of sample, fuel and combustion air.
- Remote operation via RS-232 and Ethernet.
Methane/Non-methane
Ecotech are a provider of a wide variety of methane/non-methane analyzers for the measurement of methane, as well as the total hydrocarbons. These analyzers are based on Flame Ionization Detection (FID) and allow continuous, trouble free sampling of total hydrocarbons and methane. The methane/non-methane analyzers are designed to minimize operator time on-site through the following features:
- Instrument menus and processes accessible remotely
- Can perform all calibrations automatically
- Automatically sends alarms when faults occur
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- Internal, multipoint sampling option
- Discrete, multilevel concentration & fault alarms
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- Programmable relays for concentration alarms, events and diagnostics
- Automatic FID ignition, with automatic shut-off of sample, fuel and combustion air
- Remote operation via RS-232 and Ethenet
VOC - Volatile Organic Carbons
Volatile organic compounds are an ill defined group of hydrocarbons, VOCs, result from burning of coal, oil and gasoline. These and other sources, including solvents, cleaners and paints, all contribute to the baseline level of different VOCs found in ambient air. VOCs are of interest because they photo-chemically react (in sunlight) to cause ozone and smog and in high concentrations may impact on human health.
Urban concentrations of VOCs vary greatly depending on factors such as location, traffic, available sunlight and time of day.
Ecotech offers a number of different instruments for the determination of VOCs from methane/non methane analyzers, to analyzers which use photoionisation detectors that measure the sum of aromatic hydrocarbons to gas chromatographs which can analyse inexess of 40 different VOC species.
The final selection of an instrument is dictated by the actual application and the requirements of the monitoring program. Ecotech can assist in proposing the best solution.
BTEX - Benzene, Toluene, Ethylbenzene, and Xylene
Ecotech supplies analyzers for the measurement of benzene, toluene, xylene, ethylbenzene and a variety of other hydrocarbons. These instruments are utilized in ambient air networks around metropolitan areas and fence-line monitoring at industrial sites.
Features
- Direct measurement of Benzene, Toluene, Ethylbenzene, and Xylene's in Ambient Air
- Interference free response
- Automatic calibration for unattended operation
- Automatic baseline adjustment for long-term stability
- Optional analog ouputs of Benzene, Toluene, Ethylbenzene, Xylene's and detector signal
- Analog output ranges are user selectable
- Graphic display of current and historical concentrations
- Multipoint sampling options
Mercaptans & Sulfides - EC9852 TRS Analyser
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The EC9852 TRS analyser is Ecotech's dedicated sulfur compound analyser with measurement of SO2, H2S and TRS available.
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The EC9852 TRS analyser combines microprocessor control with fluorescence detection and an external converter to measure combinations of SO2, H2S, TS and TRS in the range of 0-2 ppm with a detection limit of 0.5 ppb or SO2.
Features
- HTO1000 H2S/TRS Converter
- H2S1100 Low Temperature H2S Converter
- External remote control of the TRS analyzer (provides up to 100 channels of instrument operating parameters)
- Data accessed via RS232, USB interface or optional ethernet connector
- Inbuild data logger utilises Flash ROM to store up to 135 days of 5 minute data averages
More info at: www.ecotech.com
Air monitoring