1. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 1 Welcome to SERES environnement

2. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 2 For the Automatic Draining of water remaining in bottom of large oil products storage tanks… PAUTBAC II

3. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 3 To save fuel stock from bacterian contamination transmitted by water To improve the nominal capacity of tanks To eliminate the manual and intermittent operations To decrease hydrocarbons loss To reduce H2S release in ambient air To increase safety Application Targets

4. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 4 Control Cabinet ATEX Main Components Purge chamber Discharges valves

5. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 5 Installation Principle

6. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 6 A teflon coated capacitive probe inserted in a specially designed recirculation chamber which is mounted in the tank draining pipework measures the dielectric constant to detect difference between oil and water Automatic sample temperature compensation device EEx d II CT6 Measuring Chamber Principle

7. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 7 Maximum wire length : 300 m DISPLAY:Colour Screen OUTPUT CONTACT: Valve control dry contact output (or 24VDC) Oil detection dry contact output. General alarm dry contact output Optional dry contact available on request Buzzer control +24VDC (Buzzer in option) OUTPUT SIGNAL:4-20 mA (or 0-20 mA) oil content output signal EMERGENCY STOP: Emergency “punch button” COMMUNICATION:RS 485 / JBUS (I/O) RS232 only output POWER SUPPLY:110V-230 VAC, 50 Hz /60Hz, 30 VA (others on request) Control Box – Non Atex Version

8. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 8 Control Box – ATEX Version EEx d II BT AUTOMATIC DRAINING: Automatic purging cycle must be programmed: Purging frequency : Programmable between 1 and 999 hours. Max. purging duration : Programmable between 1 and 30 min. Valve & Purge line flushing : Programmable between 0 and 99 sec. Valve shutdown delay : Programmable between 0 and 99 sec.

9. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 9 Automatically controlled by the control unit Should be spring return type actuator for safe closing in case of loss of power supply Should be fire safe Discharge Valve – Technical Requisites* Automatic purge valves are not Seres standard supply (Selection by the end-user )

10. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 10 Easy for use, Reliable Sensor outside of tank self cleaned by flow and dry between two draining Explosion proof Fully automatic remote control 100 % safe, secure operation Key Advantages

11. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 11 Some PAUTBAC references ELF SNEAP - ATOFINA - STE IVOIRIENNE DE RAFFINAGE EDF - TOTAL – ESSO - BP – SHELL – PETROBRAS SLOVNAFT - MOBIL - TAMOIL – LUKOIL MOL - SNP PETROM – REPSOL

12. www.seres-france.com – This document is not contractual – 07/2015 On line analysis… Industry… Oil Storage Tank… Water Draining… 12 To contact us… SERES environnement 360 rue Louis de Broglie La Duranne – BP 20087 13793 Aix en Provence Cedex 3 France Tel: +33 (0)4 42 97 37 06 Fax: +33 (0)4 42 97 30 30 p.paquier@seres-france.com www.seres-france.com seres-france@seres-france.com