Scott Sigma 2 User Manual
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Scott Sigma 2 User Manual

Self-contained breathing apparatus
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SIGMA 2
Self-contained Breathing Apparatus
User Instructions
Article No. 1035017
Issue G
05. 2010

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  • Page 1 SIGMA 2 Self-contained Breathing Apparatus User Instructions Article No. 1035017 Issue G 05. 2010...

  • Page 2: Table Of Contents

    FIT FULLY CHARGED CYLINDER ......................13 LEAK TEST .............................. 13 RECORD TEST DETAILS ........................14 STORAGE ..............................14 SCHEDULED MAINTENANCE ..........................14 MONTHLY ..............................14 ANNUALLY .............................. 14 Registered Office: Scott Health and Safety Limited, Pimbo Road, West Pimbo, Skelmersdale, Lancashire, WN8 9RA, England.

  • Page 3: Warnings

    MUST NOT be used as a self-teaching guide by untrained users. Failure to understand or adhere to the SIGMA 2 User Instructions may result in injury or death. Scott Health and Safety Limited has taken great care to ensure that the information in this manual is accurate, complete and clear.

  • Page 4: Introduction

    The odour IMPORTANT threshold is in the region of 0.3 mg/m The water content shall not exceed 50 SIGMA 2 must be serviced in accordance mg/m for 207 bar apparatus and 30 mg/m with the Servicing Schedule on at least an for 300 bar apparatus.

  • Page 5: Servicing

    Council Directive 89/686/EEC. Your distributor or Training and Technical SIGMA 2 is approved for use at sea by: Support Services can provide training Lloyds Inspectorate, in accordance with course details and quotes for service...
  • Page 6 14.4 CYL-FWC-2460 2460 Table 2: Cylinders approved for use with SIGMA 2 Cylinder Material is identified by codes within the Cylinder Type. Table 3 identifies the meaning of the cylinder material code and the specification to which the cylinder is...

  • Page 7: Pneumatic System

    SIGMA 2 PNEUMATIC SYSTEM DEMAND VALVE The first stage pressure reducer has an SIGMA 2 is available with two types of integral cylinder connector hand-wheel. Demand Valve (DV): There is a sintered bronze particle filter in • Instant air positive pressure DV (blue) the reducer inlet.

  • Page 8: Facemasks

    90°. As use of the bypass consumes cylinder air rapidly, it must only be used to escape from the hazardous area. FACEMASKS SIGMA 2 is approved for use with: Vision PanaSeal PanaVisor full facemasks, all of which conform to EN 136.

  • Page 9: Pre-Use And Monthly Checks

    Apparatus that fails any of these checks must be serviced in accordance Check that the bypass valve is closed with the SIGMA 2 Service Manual. (flat area on knob is toward the face-piece). PNEUMATICS On first breath DVs only, press the black reset button.

  • Page 10: Positive Pressure, Bypass And Leak Test

    SIGMA 2 POSITIVE PRESSURE, WHISTLE TEST BYPASS AND LEAK TEST With the cylinder valve still closed, Insert fingers in the facemask seal monitor the pressure gauge and breathe and check there is a steady flow of air out of down air in the system. Check that the the mask.

  • Page 11: Fitting A Replacement Cylinder Of The Same Size

    SIGMA 2 Grasp the sides of the cam-lock 4. DONNING buckle with the index finger and thumb of PROCEDURE the right hand, use the left index finger to slide back the ribbed catch and lift the HARNESS buckle. Open the buckle and lift the empty cylinder from the back-plate.

  • Page 12: Head-Net

    SIGMA 2 Tighten the side straps for a firm, comfortable fit. DO NOT over-tighten as this Fit the chin into the chin-cup, pull the distorts the face seal. harness over the top of the head and tighten the straps in sequence: bottom, OPEN CYLINDER VALVE middle, top.

  • Page 13: Facemask Seal Check

    50 and 60 bar. If the whistle or facemask fail the test, return the apparatus for servicing, with an explanatory note attached, in accordance with the SIGMA 2 Servicing Instructions.

  • Page 14: Cylinder Pressure

    SIGMA 2 CYLINDER PRESSURE 5. DOFFING Open cylinder valve check INSTRUCTIONS pressure gauge to ensure that cylinder has REMOVE FACEMASK a minimum of 80% of the fully charged capacity: For 207 bar cylinders - 170 bar. For 300 bar cylinders - 240 bar.

  • Page 15: Turn Off Cylinder

    SIGMA 2 TURN OFF CYLINDER 6. AFTER USE CAUTION: • DO NOT immerse DV or warning whistle in water. A yellow cap is provided to protect the DV outlet. • ALWAYS use the recommended cleaning methods. • The apparatus MUST be thoroughly dried prior to storage.

  • Page 16: Clean Apparatus

    SIGMA 2 Note: TriGene Cleansing Disinfecting Solution is available from Scott Health and Safety Limited in 1 litre and 5 litre containers under Article Numbers 2008247 and 2008248 respectively. Pump dispensers are available for the above under Article Numbers 1017672 (1 litre) and 1017670 (5 litres).

  • Page 17: Record Test Details

    (available from Scott Health and the SIGMA 2 Service Schedule, contained Safety Limited under Article Number within the SIGMA 2 Service Manual. Please 1034745). refer to notes under Personnel Training and Information recorded usually includes: Servicing at the beginning of this manual for •...
  • Page 18 Scott Health and Safety Limited Pimbo Road, West Pimbo, Skelmersdale, Lancashire, WN8 9RA, England. Tel: +44 (0) 1695 711711 Fax: +44 (0) 1695 711775...

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