The document provides an overview of a training session on Geotech's GA2000 Plus landfill gas analyser. It discusses the history and development of Geotech's gas analyser products, how the GA2000 Plus works, its certifications, support services available, and addresses common questions. Hands-on demonstrations are included to showcase operation and calibration.

1. Geotech Gas Analyser Workshop Good morning GA2000 Plus

2. Objectives On completion of today’s training session you will: Understand the development of the landfill gas analyser Understand GA2000 Plus operations and functions Gain knowledge from “hands-on” experience Understand best practice processes and methods Gain answers to FAQs Understand background information on detection principles Understand ATEX certification and MCERTS Understand data handling through the use of Gas Analyser Manager (GAM) Understand what levels of support are available to you

3. Trainer: Graham Sanders , Sales Engineer Gas Analyser Training & Best Practice Techniques

4. History & Development In 1989, Geotech Limited became aware of an increasing need for a portable instrument which could reliably analyse landfill gas. The existing methods were unsuitable because.... Inaccurate CO 2 readings. They require high O 2 levels The sensors are easily poisoned Infra-red is ideally suited to analysing landfill gas.

5. Why Use Infra-red? Gas Chromatography - ? Flame Ionisation - ? Catalytic Oxidation - ? Thermal Conductivity - ? Infra-red Absorption -

6. Development of GA90 In 1989 Geotech realised a market opportunity for low cost portable analyser. Site operators and licensers contacted - specification for an “ideal readout” was developed. Launch of the first portable infra-red gas analyser – the GA90.

7. Evolution of the Landfill Gas Analyser 1994 The GA94 was the first Intrinsically Safe Gas Analyser. 1999 The GEM2000 5 gas analyser was launched with addition of flow and power. Increased storage and download capabilities

8. GA/GEM2000 Range Gas Analyser 2003 ATEX GA2000/GEM2000 range extended to GA2000 Plus & GEM2000 Plus. - Hydrogen Compensated CO reading. 2007 Re-engineered to incorporate new features as requested by our customers. 2009 MCERTS, GPS feature, event log.

9. Why Use The GA2000 Plus? 6 gas capability – CH 4 /CO 2 /O 2 /CO/H 2 S and optional pod Hydrogen compensated CO cell Designed specifically for landfill gas applications Optimise gas field efficiency Easy to use Accurate measurement of gases Fast response time Easy data download via Gas Analyser Manager (GAM) ATEX certified MCERTS on new units from July 2008

10. The ATEX Directive European Community Directive, interpreted by UK accredited bodies. All equipment must be ATEX certified by 30 June 2003. Objective - ensure equipment being used in potentially explosive environment does not cause an explosion. GA2000 Plus rating = Ex II 2G EEX ib d IIA T1 Gb This rating covers : Intrinsic safety Flameproof Zones (1 and 2) European symbol Above ground (not mines) Gases that can be measured Max temp allowed in analyser

11. MCERTS MCERTS is the Environment Agency's Monitoring Certification Scheme Provides framework for businesses to meet their quality requirements on site for gas monitoring Complying with MCERTS is seen as best practice by the EA MCERTS on gas analysers gives peace of mind on the instrument’s accuracy, performance and ultimately reliability of data MCERTS can help you with obtaining site permits and increasing scores on site audits by EA Available on all new GA2000 Plus/ GEM2000 Plus analysers Upgrades available on all ‘2000 Plus’ models manufactured after 05/02/2007

12. Any Questions?

13. GA2000 Plus Operation Best Practice Flow Devices Menus Taking Readings User Calibration

14. Best Practice – Hints & Tips Protect the unit from superficial damage, use the soft carry case Avoid temperature and shock damage Keep mobile phone away from analyser ALWAYS USE THE WATER TRAP!!!

15. Anemometer Used to record gas flow measurements Flow in m 3 /h Calorific value in BTU See real time adjustments to flow and power on site

16. GA2000 Plus Screens Menus Taking Readings Let’s now take a look at the analyser screens:

17. Any Questions?

18. FAQs Why is my gas analyser showing chevrons ? My gas analyser is displaying a “Flow Fail” alarm – what does this mean? My analyser won’t switch on. Why? Why is the methane reading showing 0.1% in fresh, ambient air? Why is the carbon dioxide reading showing 0.1% in fresh ambient air? Do other gases affect the methane reading?

19. The screen has frozen on my GA2000, What can I do? Why do my readings equate to more than 100%? Why is the screen of my analyser so dark? Why is my analyser operating so slowly? The relative pressure reading appears to have frozen. FAQs

20. What have we missed? How can we help you with your on site experience? FAQs

21. What's Inside a GA2000 Plus? Pump Flow sensor Water trap and filters Barometric pressure transducer and compensation Relative pressure transducer Infra-red bench for CH 4 and CO 2 measurement Electrochemical sensors

22. Understand Your GA2000 Plus Gas temperature compensation Cross-gas effects Storage Battery charging Factory calibration and traceability

23. Inside a GA/GEM2000 Plus Infra-red bench Solenoid Pump Encapsulated battery Power resistors – ATEX critical Comms connector Electrochemical cells CO H 2 S O 2 Liquid crystal display Beeper Barometric transducer Fibre optic webbing for backlight

24. Cross-Gas Effects (CO & H 2 S Cells) Measurements of CO are important to landfill management. Normal measurements of CO can be affected by two other gases that can be found in landfill gas (H 2 and H 2 S). To reduce the effect of hydrogen, the GEM2000 plus analyser compensates for up to 1% H 2. To remove H2S from the gas sample a H 2 S filter can be used in the sample line. The H 2 S sensor can be affected by CO in the sample.

25. User Calibration - Practical Your turn to have a go! GA calibration menu 2) Set up target gases 3) Use check gas canister and pressure regulator 4) Run gas through the analyser 5) Check the analyser readings match the gas canister concentrations

26. Storing the Analyser The analyser should be stored in a normal office/room environment. Charging the Analyser The analyser should generally be fully charged and not stopped during the charging process. A full charge will take approximately two hours. Memory The analyser’s memory is volatile and so the rule is “don’t store, transfer” Sudden shocks, levels of electromagnetic interference or static discharge may cause memory corruption or loss. If this occurs clear the memory and reset the factory settings or do a cold start Care Points

27. Any Questions?

28. Geotech Support Teams At Geotech, we have a strong support infrastructure, which is available to our customers. This includes:- Training Hire (Weekly or for Service Duration) Service Support Technical Support Customer Support

29. Service Support Experienced and skilled engineers. Fast 7 day turnaround. Analyser collection service available. Service contracts & schemes (service plus). Comprehensive hire fleet. E-mail reminders and acknowledgements. DSEAR compliant auto-cal facilities. Andy, Sue and Dean…… Tel: +44 (0)1926 338111 Email: [email_address]

30. Technical Support Provide detailed support & troubleshooting on all Geotech products via phone or e-mail. Team with over 40 years of experience. Always looking for feedback. James, James, Craig, Tim and Dean…… Tel: +44 (0)1926 338111 email: [email_address]

31. Customer Support Dedicated team to make your Geotech experience as smooth and trouble-free as possible. Communicate effectively with customers on all order enquiries. Provide any necessary ‘after-sales’ support. Sharan and Maureen…… Tel: +44 (0)1926 338111 email: [email_address]

32. Thank You For Your Attention Any Further Questions? Please take a few moments to give Geotech your feedback by completing the questionnaire Thank you

33. Geotech Overview Geotechnical Instruments commenced trading in 1976 – in the geotechnical instrumentation market

34. Geotech Overview This was followed by diversification into environmental markets in the late 80’s which include: CO 2 gas analysis Biogas CDM projects Water sampling Water quality Liquid extraction and of course …

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