WHAT IS THE ECOTECH CONTINUOUS EMISSION MONITORING SYSTEM (CEMS)? ECOTECH’s Continuous Emission Monitoring System measures high concentrations of gas at the point of emission, namely from a chimney or stack. These gases may include SO 2 , NO x, CO, H 2 S and NH 3 , monitored using specially designed gas analysers. Industries and environmental agencies use these measurements, often coupled with ambient and background measurements, to give them accurate information about emission levels and a better understanding of how emissions might affect the environment and local community. WHAT ARE THE ADVANTAGES OF ECOTECH’S EXTRACTIVE DILUTION CEMS? • Dynamic calibration is easily achieved with the help of calibration gas cylinders • Dilution probe technology requires no additional calculations for reporting on wet basis • Dilution technology system calibrates the entire sampling system rather than just parts of the system • The simple system design has less components with high system uptime • Reduces maintenance/operational cost due to fewer mechanical components, for example, chiller with additional maintenance requirements and consumables • No power required for heating of sample probe and sample lines, reducing overall operating and capital costs • Ability to accurately measure very soluble gases such NH 3 , HCl and HF • Uses US EPA & MCERTS reference method analysers • Can be expanded to incorporate additional analysers • Instrument enclosure can be installed long distances from the monitoring location utilising umbilical cables HOW DOES THE ECOTECH CONTINUOUS EMISSION MONITORING SYSTEM (CEMS) WORK? ECOTECH uses extractive dilution probe technology in its CEMS. The system extracts a small sample of gas from the stack, removes particulates and then dilutes the sample with clean dry zero air, reducing the dew point to prevent condensation of water vapour and acid mist. The diluted sample is then sent down unheated umbilical lines to the base of the stack where it is analysed by ECOTECH’s high-precision Serinus ® analysers. Due to the high sensitivity of these analysers, dilution doesn’t influence measurement accuracy negatively. In fact, accuracy is improved over other systems since water vapour and gases of interest cannot condense and impact on representative sample extraction. WHAT MAKES ECOTECH’S CEMS SUPERIOR? Each ECOTECH CEMS is custom designed and purposebuilt to suit the individual needs of our customers and their specific applications. ECOTECH invests heavily in research and development and manufactures the majority of the components and analysers that make up the CEMS. This allows ECOTECH to offer an unparalleled level of product knowledge and support. ECOTECH holds ISO 9001 certification together with NATA (National Association of Testing Authorities) ISO/IEC 17025 accreditation for the maintenance and operation of emissions monitoring stations. ECOTECH provides in-depth customised training designed to help operate, maintain and calibrate their CEMS with maximum efficiency. The use of extractive dilution probe technology in the system makes maintenance easy. When it is time to change the filter cartridge, the dilution probe body is easily removed by means of quick connection clips, without the need to remove the probe by dismantling the flange connection. • A wide variety of shelters are available to house the system, including industrial enclosures, weather proof stations and large containers.
ECOTECH’s Product Portfolio for CEMS Serinus ® 30 CARBON MONOXIDE ANALYSER The Serinus ® 30 carbon monoxide (CO) analyser uses proven non-dispersive infrared (NDIR) sensor gas filter correlation technology to measure CO in ambient air/ undiluted measurement range (LDL < 40 ppb, range 0 to 200 ppm). Serinus ® 30H CARBON MONOXIDE ANALYSER – HIGH LEVEL Based on the Serinus ® 30 carbon monoxide (CO) analyser, the Serinus ® 30H measures higher levels of CO in ambient air/undiluted measurement range. Serinus ® 40 OXIDES OF NITROGEN ANALYSER The Serinus ® 40 oxides of nitrogen (NO x ) analyser uses proven chemiluminescence technology to measure NO, NO 2 and NO x in ambient air/undiluted measurement range (LDL < 0.4 ppb, range 0 to 20 ppm). Serinus ® 40H OXIDES OF NITROGEN ANALYSER – HIGH LEVEL The Serinus ® 40H oxides of nitrogen (NO x ) analyser uses microprocessor control and chemiluminescence detection to measure high concentration nitric oxide (NO), total oxides of nitrogen (NO x ), and nitrogen dioxide (NO 2 ). The Serinus 40H measures NO and NO x in the range 0 to 1000 ppm and NO 2 in the range 0 to 150 ppm. ecotech.com | 5