1. 1 04 April 2007 L. Roy Detector Safety System for infrastructure - General fire detection (barracks, cavern) - Sniffer system (smoke detection above the sub detectors) - Temperature, humidity (barracks, cavern, control room, gas building) - Mixed water cooling (temperature, flow switch, leak for the barracks, bunker, balcony) - Emergency stop ‘AUL’ (barrack) - Flammable gas detection ( gas building) - Electrical power cut (barrack, control room, gas building) - Mixed water valves close - Hi-fog extinguisher system triggering (D1, D2 barracks) Sensors (inputs)  Alarm  DSS Action (outputs)  SMS / eMail sending INPUTS OUTPUTS DSS I/O for the general infrastructure:

2. 2 04 April 2007 L. Roy Detector Safety System for the Calorimeter Racks: - Thermo switch + Smoke detector in the ‘Turbines’ (D3, B1 and Calo platform racks) - Temperature + Flow switch of the mixed water cooling ( Calo platform racks) - Water leak detection (10 Calo platform racks) PS/SPD detectors: -Thermo switch in ‘electronics’ boxes (total:32) - Water leak detection (8 detection cables) - Electrical power cut (Marathon PS, ‘Turbines’) - Mixed water valves close (circuit C side or A side) - Stop water demineralized cooling plant - Fire extinguisher triggering (CO2 Bottles) Alarm-Action-Matrix: ~ 37 DSS Inputs  35 Alarms  26 DSS Outputs  Published via DIP for ECS INPUTS OUTPUTS DSS I/O specially dedicated for the Calo. Detectors:

3. 3 04 April 2007 L. Roy Cooling: 2 independents ‘Mixed Water Cooling’ circuits for platform racks (side A and C):  pneumatic valves connected, Pt100 + Flow switch must be connected. Cooling plants (on UXA-C2: Demineralized water for OT+PS/SPD)  cables must be connected ‘cooling PLCs’ side: Meeting foreseen after Easter with Paolo (TS/CV). Racks: Thermo switch in ‘Turbine’  connector installation, cabling to be made (chain). Smoke detection in ‘Turbine’  will be connected in ~ 2/3 coming weeks. CO2 Rack Extinguisher systems  bottles installation in 2 weeks then cabling to be done. For these 3 points: Calo indicate the passage/location around the racks for the cables, we make the connection. Water leak detection  additional probe below the valves must be installed: ‘bac’ installation, cut cable, insert connectors + probe (in chain with the other racks probes). PS/SPD: Thermo switch + Water leak detection  Calo must connect TS cables to ‘mini patch panels’ on the platform, chain the leak detectors. Calo must connect all the cables in the DSS Patch Panel (simple screw terminals), I can help you for that. CALO DSS Hardware Status: cavern side

4. 4 04 April 2007 L. Roy Input/Output and the Alarms described in ‘DSS for the Calorimeter’ document: https://edms.cern.ch/document/830667 https://edms.cern.ch/document/830667 Approval by Pascal and Xavier Program the Alarms in the DSS PLC (C side, action disabled at the begining)  After sensors/alarms/actions can be easily change/inhibit but you will have to follow a strict procedure (use DSS Logbook). When sensors ready  Enable actions  Tests (sensors/alarm/action) Probably three steps for C side tests : 1) Hcal + Ecal Racks 2) PS 3) SPD  We have to plan together the tests (power cut, cooling stop…)  I need Calo help to test PS/SPD Thermo switches (open the boxes) and water leak detection. CALO DSS Alarm programmed and Tests During the next 2-3 weeks DSS will not be completely operational  it is strongly advised to have always minimum one person in ‘the racks area’ during your tests/commissioning and to switch off if it is not the case (lunch, night, weekend). Schedule (estimation) for Hcal+Ecal Racks C side: CO2 bottles can be activated manually in 2-3 weeks, automatically with DSS probably later. All sensors connected in ~ 2-3 weeks. Alarm programmed + tests in ~ 3 weeks (Pascal and Xavier receive a email when a Calo alarm appears).

5. 5 04 April 2007 L. Roy OTHER SLIDES

6. 6 04 April 2007 L. Roy 13 ‘Mixed Water’ + 1 ‘Chilled Water’ circuits for each: Electro pneumatic valves rack (on UXA- A2) Mixed Water Cooling 2 Pneumatically driven valves 1 Flow switch1 Pt100

7. 7 04 April 2007 L. Roy OT: Demineralized water (with PS/SPD)  Contact from the PLC: ‘Cooling Not Ok’  Contact from DSS: ‘Stop’ (PS/SPD leak detect) RICH: C6F14  Contact from the PLC: ‘Cooling Not Ok ’ IT: C6F14  Contact from the PLC: ‘Cooling Not Ok’ TT: C6F14  Contact from the PLC: ‘Cooling Not Ok’ Different Cooling PLCs

8. 8 04 April 2007 L. Roy Water leak detection system Probe for: Calo racks Muon racks TT Service Boxes below the Balcony UXA-C (Cooling Plants) barrack false floors PS/SPD in the groove (bunker) Electronic central Detecting Probe Sensitive cable DSS modules 1 Module per ‘branch’ give a relay contact

9. 9 04 April 2007 L. Roy Smoke Detection ‘Centrale Incendie’ - detect smoke in the cavern or barracks - Level3 Alarm  fire brigade - 7 contacts (one per region) go to DSS Sniffer System - detect smoke in or around the sub-detectors - Level3 Alarm  fire brigade - 9 contacts (±one per sub-detector) go to DSS Smoke detector for racks - on the top of the rack (often in turbine) - detect smoke in the racks (but not a Level3 Alarm) - ~80 (one per ‘electronic’ rack)

10. 10 04 April 2007 L. Roy Extinguisher systems ‘Hi-Fog’ System - only for D1 and D2 barracks - inject N2+water fog through nozzles on the ceilings - probably manual trigger CO2 bottles for the ‘electronic’ racks -1 per rack in cavern, 1 for 2 racks in CH - Gas nozzle in the air flow (when rack is ventilated) - pyrotechnic triggering - ~ 60 bottles in total

11. 11 04 April 2007 L. Roy Turbine Thermo switch Thermo switch - often daisy chained (ex: 3 connectors on the same cable in the counting houses) - ~ 25 chains connected to DSS Be careful when you pull a turbine:  do not forget to disconnect the Thermo switch on the rear panel (one connector has already been pulled out and destroyed in the barrack)

12. 12 04 April 2007 L. Roy DSS ‘Sub-Detectors’ Status Mini DSS reviews have been organized for every sub-detector  Inputs/Outputs definitions have been finalized. Sub-detectors must now install their sensors and connect them to the DSS Patch Panels  I can give you the cable clamps to fix the cables and connect the shielding in the DSS PatchPanels. Pt100 Thermo switch chain Water leak probe Ex: fire extinguisher system (CO2 bottle) Electro Valve

13. 13 04 April 2007 L. Roy Other: DSS Patch Panel location