— ABB Me A sureMent & AnAly tic s

CEM-DASContinuous Emission Monitoring Data Acquisition System

2 Zuverlässige instrumentierung B R O CH U R E SU BTITL E

—Measurement made easy

When burning coal, petroleum products, natural gas as well as municipal and hazardous waste pollutants are created, that are emitted with the flue gas. In most countries laws and regulations exist that govern allowable emission limit values (ELV’s) and volume flow of pollutants – gaseous components and particulate matter – in the cleaned flue gas.

Many types of plants from power stations, steel works, cement plants, chemical and petrochemical plants down to smaller production units or municipal facilities are liable to comply with these standards regarding emission of pollutants into the atmosphere.

CEM-DAS Co nti n u o us Em issi o n m o n ito r i n g Data aCq u isit i o n s y s tEm 3

—CEM-DAS Reporting made easy

Continuous Emission Monitoring System (CEMS) A ceMs is the total equipment needed for the determination of a gas and/or dust (particulate matter) concentration and a conversion to produce results in units of the applicable emission limitation. Depending on the kind of fuel and local environmental regulations, a number of gas components, preferably cO, nOX and sO2 are to be monitored continuously in the flue gas at the stack along with dust, gas flow, temperature and O2, sometimes H2O as well. in case of waste incinerators or co‑incinerators of alternative fuels, additional components such as HF, nH3, Hcl, Hg and Volatile Organic compounds (VOc) may be required to be monitored. Measuring data are transferred to a specific Data Acquisition and Handling system (DAHs) for further processing and reporting to the authorities. the availability of a DAHs is superior. in the uK and Germany only type approved DAHs’s are permitted for continuous emission Monitoring (ceM).

CEM-DAS system overviewABB’s ceM‑DAs is a Pc‑based Data Acquisition and Handling system for continuous emission Monitoring. it is a complete, networkable system for continuous recording, and evaluation of emission data in all industries. the system provides important information for the environ‑mental and economic operation of production facilities. ceM‑DAs is scalable to support smallest one stack installations up to multi‑ block plants with numerous measuring points. ceM‑DAs has proven its robustness in a German tÜV test which requires 99% uptime.Field data from gas analyzers, dust monitors, etc. can be acquired via conventional i/O’s or Modbus tcP/iP. these data are processed in the ceM‑DAs server.

All results are saved in a database and on the file system. Optionally, a Data Acquisition unit can be used to buffer field data. A standard web browser allows access to ceM‑DAs to view bar charts and line charts, generate reports or change configurations.the system is designed for remote maintenance. this allows remote users access to ceM‑DAs to support the commissioning process or help with day‑by‑day questions.

Main Features • compliant to all plants covered by the industrial

emission Directive 2010/75/eu• client / server architecture with easy access via

standard browser• each configuration change is saved in an own

revision • redundancy built‑in to handle redundant

‑ gas analyzers systems ‑ ceM‑DAs server ‑ storage media like a network Attached

storage (nAs) server or a network file system• Bar charts, line charts and lists displaying all

pertinent information• Data export in csv or txt format, e.g. to Ms excel• emission reports in pdf format• Multi‑user password management for different

users groups with tailored access• Database to save all data and allow access for

end users to develop own applications • Modbus tcP/iP connection for minimum

cabling effort to analyzers and/or distributed control systems

• can be administered via remote access• Options

‑ en 14181/QAl3 module ‑ cO2 emission trading module ‑ extended password protection ‑ eFÜ for installations in Germany

CertificatesQAl1 certified according• en 14181• en 15267‑1 and en 15267‑2• German uniform Practice in monitoring emissions• German emission teletransmission interface (eFÜ)• Mcerts Performance standards and

test Procedures for environmental Data Management software

• VDi 4201‑3 for Modbus tcP/iP interfaces

Data Acquisition unit

nAs server

i/O’s

Plant’s status signals

Gas analyzer‑ cabinet

stack

Dustmonitor

P, t, V ABB Remote Support

DistributedControl System

control room client

ceM‑DAs server

—To find your local ABB contact visit: www.abb.com/contacts

For more product information visit: www.abb.com/measurementP

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