1. BioWin ®

2. Bio Gas – The alternative energy source of the future! BioWin ® - Bio Gas Analysis of the future!

3. How to describe Bio Gas ? Gas mixture formed by an anaerobe, bacterial decomposition of organic substances liquid manure, vegetable waste out of agriculture and foodstuff industry, wood, greases... Content: - approx. 50.. 70 Vol.% CH 4 - approx. 30.. 40 Vol.% CO 2 - Parts von H 2 S, N 2 und H 2

4. Measurement of the CH 4 -content in Bio Gas for controlling the fermenter function and the effectiveness of the motor Measurement of the H 2 S-content: protection of the lubricant of the gas motor Measurement of other components (CO 2, H 2, O 2..) for evaluation of the fermenting process Fermenter Motor / Generator Biogas BioWin ® Tasks of the BioWin ® :

5. magnetic valvegas cooling unitvariable pumpflow-meter H 2 S-transmitter 2000ppm (EC) CH 4 -transmitter 100 Vol.% (IR) CO 2 -transmitter 100 Vol.% (IR) O 2 -transmitter 25 Vol.% (EC) H 2 -transmitter 2000ppm (EC) Air inlet Gas inlet RS232/RS485 BioWin-terminal 8 floating inputs analogue outputs 5 relays alarm 1 1 relay alarm 2 6x transistor- outputs 6x opto-coupled inputs outlet Terminal block (all internal signals are connected to the terminal block) environmental monitoring, max 3 transmitters 4..20mA Micro controller: Real time-clock, DA/AD - converter, EEPROM, FLASH, RAM, Watchdog, serial interfaces Speed-monitor of fans Functions: monitoring of measured values, System supervising and step-control I/O-control Terminal interface PC-connection control room (PC, SPS) RS232/RS485 Block Diagram

6. Application:Monitoring of Bio Gas (suction) Measuring ranges:CO 2 : 0 – 100 Vol. % CH 4 : 0 – 100 Vol. % O 2 :0 – 25 Vol. % H 2 S: 0 – 2000 ppm H 2 : 0 – 2000 ppm (other gases on demand) Alarm levels:2 alarm levels, freely adjustable BioWin ® - Technical Data

7. Measurement : - Continuously or in freely programmable intervals Measuring gas preparation - Integrated measuring gas preparation with measuring gas cooler, finest filter as well as automatic condensate outlet Monitoring - Electronic flow monitoring (Principle of differential pressure) - Monitoring of the cooling temperature of the Peltier - Rotational speed monitoring of the rack fan BioWin ® - Technical Data

8. Outputs: -5 relay contacts (N.C. and N.O.) for the separate alarm signalisation (Alarm 1) of the 5 measuring channels -1 relay contact collective alarm (Alarm 2) -1 relay contact system failure -8 transistor outputs (24V/0.4A) to switch the internal as well as external magnetic valves (e. g. Change-over of measuring points) -max. 8 optional, opto-decoupled analog outputs 0/4..20mA for measured values BioWin ® - Technical Data

9. Inputs -8 opto-decoupled switch inputs 12..24V, 5 of which freely available for optional applications such as external control signals ( e.g. „start Measurement“, channel change-over etc.) Analog Inputs -Measuring inputs 0/4..20mA for max. 8 transmitters. Besides max. 5 internal used measuring channels three additional channels are available, to program external signals as per customer requirements. This enables connection of additional transmitters, e.g. for monitoring of ambient air, temperature or humidity. BioWin ® - Technical Data

10. Interfaces -Two serial Interfaces available: RS232 or RS485. One is configured for communication with the terminal, the second one might be configured / programmed for external data processing (control unit or PC) as per customer requirement. By default all measured values as well as parameters are transferred via these interfaces. -The terminal interface is used additionally for programming the On-Board Flash of the Micro-controller. This enables to update the software without changing the EPROM. BioWin ® - Technical Data

11. Terminal -For displaying the measured values BioWin ® offers an external operating terminal with optional RS232 or RS485 – connection to the controller. BioWin ® - Technical Data

12. Electrochemical transmitter Module with filter, magnetic valve, needle valve Measuring gas pump Peltier cooler Micro-controller and I/O- module Infrared transmitters Terminal board Power supply Condensate pump (hose pump) Fan with rotational speed control BioWin ® - Assembling

13. Transmitter module -The separate mounting plate on the right side wall of the housing covers a maximum of five transmitters which are connected to the measuring gas preparation and control unit via four plug-in hose channels as well as 5 plugs for the transmitters. This facilitates service and maintenance. BioWin ® - Technical Data

14. The Software fulfils the following tasks: -Parameterization of the measuring channels and alarm levels -Programming the process control -Displaying the measured values in clear bar graph schemata -Detailed, numeric displaying of each channel -Monitoring of the measured values with regard to exceeding of the alarm levels -serial communication with control room computer BioWin ® - Software

15. PC-Software (2004) -Parameterization of the analysing system -Displaying, evaluation and storing of the measuring data -Remote controlling of the analysing system (change-over of measuring points...) GSM-Modem (2004) -alarms via SMS -Remote parameterization, check of measured values BioWin ® - Extensions