MODUL+AIR-2 User Manual
Contents
1. MODUL AIR 2 Airline Breathing Apparatus User Instructions ertified Product Article No 1035027 Issue G 10 2008 pes 0086 Standard AS NZS1716 2003 Lic 1214 SAI Global MODUL AIR 2 Airline Breathing Apparatus Contents WARNINGS 1 INTRODUCTION ABBREVIATIONS BREATHABLE AIR AIRLINE AIR SUPPLY APPARATUS DURATION TRAINING cece SERVICING sccdecceseeewsecsedetest SPARE PARTS AND ACCESSORI ree Cae er Gree E ee OMNADRWH HOSE REEL MEDIUM PRESSURE ALARM OPTIONS 2 5 1 Whistle 2 5 2 DS4 Alarm 2 6 EXTERNAL AIR SUPPL 2 7 AIRLINE FILTER UNIT 2 8 HOSE CONFIGURATIONS 2 9 CYLINDERS 3 PREPARATION FOR USE 3 1 INITIAL CHECKS AIRLINE SYSTEM 3 2 DS4ALARM 3 3 AIRFILTERUNIT 3 4 INITIAL CHECKS CYLINDER STEN mr 35 HOSES inaa araia 3 6 CHANGING A CYLINDER 3 7 ADJUSTING CYLINDER BANDS 3 8 CHANGING THE DS4 BATTERY 4 DURING USE 4 1 EXTERNAL AIR SUPPLY WITH CYLINDER BACK UP 4 2 CYLINDER SUPPLY AFTER USE CLEANING BREATHING APPARATUS LOG SCHEDULED MAINTENANCE 8 1 MONTHLY 8 2 ANNUALLY ANDTO aRwWN os PNP Sabre Breathing Apparatus is a division of Scott Health and Safety Limited Registered Office Scott Health and Safety Limited Pimbo Road West Pimbo Skelmersdale Lancashire WN8 9RA England WARNINGS Please Read Carefully and Fully Understand This manual is for2. AIR 2 WARNING Replace cylinders that are less than 80 full 4 Check to ensure that there are no leaks from the open bleed screw 5 Allow 30 seconds for the system to pressurise Close the cylinder valve and bleed screw 6 Observe the high pressure gauge and check that pressure loss is less than 10 bar per minute A drop of more than 10 bar per minute indicates that there is a leak 7 Use the DV bypass valve to bleed the system Check that the warning whistle sounds when the high pressure gauge reads between 50 and 60 bar 8 Repeat operations 1 to 6 for each of the remaining cylinders in turn Note Ensure that air is drained through the DV bypass valve before commencing tests on next cylinder 9 Open one cylinder valve fully 10 On ALL breathing apparatus connected turn the DV bypass valve s to the ON position With air free flowing from the DV s check that the medium pressure gauge stays in the green sector and that the medium pressure whistle does not alarm 11 Turn the DV bypass valve s to the OFF position and check that air no longer flows from the DV s 12 Follow the instructions in the breathing apparatus User Manual to check the facemask DV and pigtail 3 5 HOSES f Examine all hoses for signs of damage such as splits abrasions and deep crazing minor crazing is acceptable 2 Examine all couplings for signs of damage and ensure that all connections are securely
3. 0 bar 84 and 126psi and capable of providing the flow rates listed in Table 2 2 7 AIRLINE FILTER UNIT TA0339 Airline Filter Unit AFU 1 External Air Supply Inlet 2 Pop up Indicator 3 Outlet Hoses 4 Warning Whistle WARNING The AFU WILL NOT remove carbon monoxide CO carbon dioxide CO2 or other toxic gases or vapours e The AFU MUST be operated in the vertical position For further details please refer to AFU User Instruction Manual The AFU has three filter elements Two coalescing filter elements remove oil water and particles down to 0 01 x 10 metres giving a residual oil content of less than 0 01 mg m dirt The third element is an activated carbon absorption filter that removes oil vapour and odours Before use the external air supply MUST be checked for purity and composition see Breathable Air in the Introduction section of this Manual Where toxic gases or vapours are present an air purifier must be used Further details are available from Customer Services at Scott Health and Safety Limited Auto drain valves fitted to each element drain water and oil filtered from the air The third element an absorption bed of activated carbon removes oil vapour and odours Elements must be renewed when congested A red pop up indicator on AFU is activated when the pressure drop in the AFU caused by congestion becomes excessive MODUL AIR 2 2 8 HOSE CONFIG
4. Free air Charged Total Warning Nominal Cylinder volume pressure capacity weight duration period duration Band litres bar litres kg min min min position CYL 1200 CYL HWG 1200 CYL FWC 1300 CYL 1640 CYL HWG 1640 CYL FWC 1640 CYL 1800 CYL HWG 1800 CYL FWC 1800 CYL FWC 1860 CYL 2240 CYL FWC 2460 Table 3 Cylinders approved for use with Modul Air 2 Material Specification CE Marked EU Work Cover Australia amp New Zealand HSE AL HW1 EU Work Cover Australia amp New Zealand CE Marked EU Work Cover Australia amp New Zealand Steel eg CYL 1200 Hoop Wrapped Glass Fibre eg CYL HWG 1200 Fully Wrapped Carbon Fibre eg CYL FWC 1300 Table 4 Cylinder Codes and Specifications The following formulae apply Cylinder Free Air Capacity Average Wearer Consumption Rate Total Duration Nominal Duration Total Duration minus the Warning Period Whistle Operating Pressure x Cylinder Water Capacity Average Wearer Consumption Rate Warning Period High pressure whistle operating pressure 55 bar Please read Section 1 4 Apparatus Duration at the front of this manual MODUL AIR 2 3 PREPARATION FOR USE WARNING Keep the AFU upright during operation Tilting the AFU may result in filtered out material re entering the air supply DO NOT use apparatus tha
5. URATIONS Although the hose reel holds only 60 metres of hose the maximum hose length for which Modul Air 2 is approved is 105 metres The total length is achieved by connecting several hoses of different lengths The following diagrams show configurations that have been tested and approved by Scott Health and Safety Limited Configurations that result in a total length of less than 105 metres are permissible If the maximum hose length configurations in the following diagrams do not meet your requirements please contact Training and Technical Support Services at Scott Health and Safety Limited for advice on alternative configurations MODUL AIR 2 HPM 30m 15m BA R 60m A 30m 15m BA TA0340 Maximum hose length configuration for a 2 man Modul Air 2 15m TA0341 Maximum hose length configuration for a 4 man Modul Air 2 Key HPM High pressure Manifold R Reducer BA Breathing Apparatus MODUL AIR 2 2 9 CYLINDERS Table 3 shows the cylinder types approved for use with Modul Air 2 All durations quoted are nominal and based on an average consumption rate of 40 litres per minute Composite cylinders may vary in diameter which may affect the cylinder band positions as would the fitting of cylinder covers The positions given are for guidance only Table 4 contains details of the cylinder specifications Cylinder Water Charging
6. and valves The following configurations of Modult Air 2 are available Static frame fitted with pneumatics and space for two compressed air cylinders Static frame fitted with pneumatics and space for four compressed air cylinders Trolley based system with 2 or 4 cylinder frame pneumatics and a hose reel capable of holding 60 metres of hose Trolley system with cylinders pneumatics and a hose reel that can be supplied from an external medium pressure breathable air supply MODUL AIR 2 Options for use with trolley based versions include A medium pressure warning whistle An Air Filter Unit AFU An electronic low pressure warning alarm DS4 The Modul Air 2 tubular stainless steel frame can house either two or four compressed air cylinders version dependent with a diameter of between 140 mm 5 5 and 180 mm 7 Cylinders are secured by steel cylinder bands and butterfly catches Modul Air 2 is CE marked to EN 139 1994 Respiratory Protective Devices Compressed Airline Breathing Apparatus and is quality assurance approved to ISO 9001 2000 Modul Air 2 is approved to Australian New Zealand Standard AS NZS1716 2003 Modul Air 2 is marked in accordance with EN 139 1994 and AS NZS1716 2003 An explanation of those markings is shown opposite A B esta BRE A IZ ISA ay WARNINGS Maximum Reduced Pressure 11 0 bar USE ONLY Breathab
7. bar 55psi 2 5 2 DS4 Alarm The DS4 alarm is a battery operated electronic warning device which is ATEX approved as intrinsically safe for use in flammable or explosive atmospheres DS4 Alarm The DS4 is powered by a PP3 9 volt alkaline battery which must be renewed periodically A yellow light will illuminate to advise the operator when the battery level is low The DS4 unit is switched on and off by a key operated switch which is located on the side of the unit close to the warning lights When the DS4 is initially switched on a red warning light will illuminate and the audible alarm will sound until pressure in the system reaches the safe level Once the safe pressure level is reached the audible alarm will cancel automatically the red light will extinguish and a green light will illuminate During use if the medium pressure circuit falls to below 4 5 bar 65psi the operator is alerted by the illumination of the red warning light and the sounding of the audible alarm Under normal conditions while the pressure is at a safe level a green light is illuminated 2 6 EXTERNAL AIR SUPPLY WARNING On Modul Air 2 versions designed to operate with an external supply airline the airline may be connected directly to a pressure reducer or to an airline filter unit provided External air supplies must conform to EN 12021 1999 or AS NZS1715 1994 Pressure must be between 6 0 and 9
8. e warranted to be free from defects in materials and workmanship at the time of delivery SCOTT will be under no liability for any defect arising from wilful damage negligence abnormal working conditions failure to follow the original manufacturer s instructions misuse or unauthorised alteration or repair Evidence of purchase date will need to be provided for any claims arising during the warranty period All warranty claims must be directed through SCOTT Customer Services and in accordance with our sales return procedure 1 9 NOTIFIED BODIES Inspec International Ltd 0194 56 Leslie Hough Way Salford Greater Manchester M6 6AJ England British Standards Institute 0086 389 Chiswick High Road London W4 4AL England SAI Global 286 Sussex Street Sydney NSW 2000 Australia Lic No 1214 MODUL AIR 2 2 TECHNICAL DESCRIPTION 2 1 GENERAL Modul Air 2 Two cylinder Trolley The Modul Air 2 apparatus is a portable airline system which can supply medium pressure breathable quality air to up to four airline breathing apparatus with demand valves Modul Air 2 units are approved for use with a total hose length of up to 105 metres Apparatus with two reducers is approved for use with two total hose lengths of 105 metres where each length is supplied from a reducer Modul Air 2 units are approved for use with all Sabre compressed air airline breathing apparatus fitted with dem
9. es the piston is forced down against the spring until the nylon seat at the lower end of the piston stem closes the jet When medium pressure air flows from the reducer to the wearers the pressure in the chamber falls enabling the spring to lift the piston seat from the jet This cycle continues while there is sufficient air in the cylinder The medium pressure gauge has a restrictor that limits air loss to 25 litres per minute in the event of the gauge becoming damaged 2 4 HOSE REEL The hose reel is fitted with 60 metres of 9 5 mm 3 8 bore airline supply hose The hose conforms to EN 139 1994 and AS NZS1716 2003 and has a maximum working pressure of 15 bar 220psi Hoses are fitted with CEJN safety couplings The hose reel manifold can accommodate up to two medium pressure hoses each from a pressure reducer and a medium pressure warning whistle MODUL AIR 2 A rotatable CEJN coupling in the hub allows the hose reel to turn without loss of air The CEJN parking connector at the top of the hose reel frame is designed to vent any pressure from the medium pressure circuit Anti static hoses which are resistant to heat and chemicals must be used in environments where there is danger from potentially explosive or flammable atmospheres 2 5 MEDIUM PRESSURE ALARM OPTIONS 2 5 14 Whistle The medium pressure whistle sounds when the medium pressure circuit falls below between 4 1 bar 60psi and 3 8
10. ide 0 048 0 031 Hydrogen 0 000 003 0 000 05 Helium 0 000 073 0 000 52 Neon 0 001 2 0 0001 8 Krypton 0 000 33 0 000 11 Xenon 0 000 04 0 000 009 Table 1 Breathable Air EN 12021 NOT applicable for Australia or New Zealand Fire risk increases when the oxygen content is above the value shown in Table 1 The quality of air used to supply and charge breathing apparatus must conform to EN 12021 1999 or AS NZS1715 1994 Contaminants must be kept to a minimum and must not exceed permissible exposure levels Where air purifying devices are used these must be sufficient for the types of contaminant present in the air supply MODUL AIR 2 Air supplied from a fixed or portable external source must be tested periodically to ensure conformance with these regulations Air supplied to breathing apparatus must be free from the odour of oil The odour threshold is in the region of 0 3 mg m The water content of air used to charge high pressure compressed air cylinders must not exceed 30 mg m for 300 bar or 50 mg m for 200 bar apparatus Air for compressed air breathing apparatus must have a dew point sufficiently low to prevent internal freezing when apparatus is used below 4 C National regulations for compressed airline breathing apparatus must be observed 1 3 AIRLINE AIR SUPPLY Airline systems must conform to the supply pressures and flow rates listed in Table 2 An airline f
11. ing the cam lock fastener turn clockwise to tighten and anti clockwise to loosen 8 On the replacement cylinder open the cylinder valve the close the on line cylinder valve Check that the high pressure gauge reading is at least 80 full 3 7 ADJUSTING CYLINDER BANDS TA0338 1 2 3 4 1 Use a 4mm Allen Key to remove the cylinder band retaining screw and release the cylinder band Cylinder Band Retaining Screw Cradle Flap Locking Catch 2 Re position the cylinder band according to the hole positions given in Table 3 Replace the retaining screw and tighten securely 3 Position the cylinder in the frame and fasten the cylinder band butterfly catch 3 8 CHANGING THE DS4 BATTERY WARNING DO NOT remove the DS4 battery compartment cover in a_ potentially explosive or flammable atmosphere f Remove the four screws that secure the battery compartment cover to the DS4 unit Place battery compartment cover aside 2 Withdraw the battery and holder from the battery compartment 3 Remove the battery from the holder 4 Replace the battery in the holder and refit into the battery compartment 5 Replace the battery compartment cover and secure in position with the four screws Tighten screws evenly DO NOT over tighten 13 MODUL AIR 2 4 DURING USE WARNING When in use a competent person MUST remain with the supply system at all times to act as base contr
12. ing and Technical Support Services or your distributor for training course details Training and Technical Support Services Scott Health and Safety Limited Pimbo Road West Pimbo Skelmersdale Lancashire WN8 9RA England Tel 44 0 1695 711711 Fax 44 0 1695 711775 1 6 SERVICING Modul Air 2 must be serviced at scheduled intervals by personnel who have completed a formal training course and hold a current certificate for the servicing and repair of Sabre breathing apparatus Details of the servicing schedule are contained in the Modul Air 2 Service Manual copies of which can only be obtained by registered holders of a current certificate Training and Technical Support Services at Scott Health and Safety Limited provide a complete mobile test and maintenance service for all Sabre equipment Further details of training courses and servicing contracts can be obtained from Training and Technical Support Services 1 7 SPARE PARTS AND ACCESSORIES Customer Services provide an efficient friendly customer contact point for ordering new apparatus spare parts and accessories The team can also provide general information on Sabre products 1 8 WARRANTY The products manufactured at our factories in Skelmersdale and Vaasa carry a warranty of 12 months unless stated otherwise for parts labour and return to site The warranty period runs from the date of purchase by the end user These products ar
13. is available from Scott Health and Safety Limited under Article Number 1034745 for this purpose The log must contain Name and address of the employer responsible for the apparatus Name and signature or authentication of the conducting the tests Manufacturer model and serial number of the equipment together with details of any other distinguishing features or markings that enable it to be clearly identified Condition of equipment and details of any faults found during the tests and any remedial action taken Types of test conducted Date of the tests Air pressure within the cylinders The length of time that the equipment was in use must be recorded for AFU servicing requirements unique person MODUL AIR 2 8 SCHEDULED MAINTENANCE 8 1 MONTHLY 1 The equipment must be checked and tested at monthly intervals in accordance with the After Use instructions contained in this Manual 2 Details of these tests must be recorded within the appropriate register and retained for future reference Note In the United Kingdom monthly testing is a statutory requirement under COSHH Control of Substances Hazardous to Health regulations 16 8 2 ANNUALLY 1 The equipment must be tested and serviced in accordance with the Modul Air 2 Service Schedule within a maximum period of one year 2 Full details of servicing requirements can be found in the Modul Air 2 Service Ma
14. le Quality Air Scott International tid Fimo Road West Pimbo Skeim Lancashire WN8 SRA United Kingdo Tel 44 0 1695 727171 Fax 44 E F ra MODUL AIR COMPRESSED AIRLINE BREATHING APPARATUS CERTIFIED TO ENI39e SERIAL No H DATE l c 0086 _ J Meaning Product brand name Symbol refer to User Instructions Operational warnings Contact details of manufacturer Product model designation Apparatus description Standards to which apparatus is certified Serial number of apparatus Date of manufacture Number of Approval Body 2 2 PNEUMATICS The pneumatics system comprises cylinder connectors and reducer Air flows from the cylinders through the cylinder connectors to the reducer where it is reduced to between 5 5 and 11 bar Each cylinder connector has a non return valve that prevents air from a charged cylinder flowing into a discharged cylinder and allows discharged cylinders to be replaced while the system is pressurised A bleed screw in the connector elbow enables the cylinder connector to be depressurised prior to disconnection A sintered filter in the cylinder connector protects the pneumatic system from contamination TA0342 Pneumatics for a single reducer system p TA0343 Pneumatics for a dual reducer
15. low tester Article Number 1035978 can be used to check airline supply pressure and flow Number of Pressure Flow Wearers bar psi L min 1 5 0 7 0 70 130 2 1 Pair 5 0 7 0 70 130 3 1 1pai 5 0 7 0 70 130 4 2 Pairs 5 0 7 0 70 130 Table 2 Airline Supply Pressure and Flow Modul Air 2 is approved for use with a maximum hose length of 105 metres MODUL AIR 2 1 4 APPARATUS DURATION Durations quoted for compressed air cylinders are nominal and based on an average consumption rate of 40 litres per minute to positive pressure breathing apparatus Table 3 lists the cylinders approved for use with Modul Air 2 Consumption rates are increased by the following factors Workload Temperature extreme heat or cold Physical fitness personnel with less efficient cardiovascular systems consume more air for a given work rate Stress and fatigue Physiological stress Heavy restrictive clothing It is important that users are aware of these factors when considering the duration of air supply from cylinders and ensure that adequate precautions are taken 1 5 TRAINING Personnel using this apparatus must be fully trained in accordance with these instructions and national regulations These instructions cannot replace an accredited training course run by fully qualified instructors in the proper and safe use of Sabre breathing apparatus Please contact Train
16. made WARNING DO NOT use hoses or couplings that exhibit signs of damage 3 6 CHANGING A CYLINDER WARNING DO NOT mix cylinders of different charging pressures when using the equipment Fit only FULLY CHARGED cylinders When a cylinder is changed while the apparatus is in use ensure that an adequate supply of air is available in the on line cylinder for breathing apparatus wearers To prevent possible equipment failure DO NOT charge the pneumatic system utilising more than one cylinder or operate the Modul Air 2 system with more than one cylinder valve open 1 On the empty cylinder release the hand wheel locking catch and close the cylinder valve A TA0266 A 2 Open bleed screw B to vent the cylinder connector Close the bleed screw and disconnect the cylinder connector from the cylinder 3 With the frame in a horizontal position release the cylinder band catch and remove the cylinder 4 If the replacement cylinder is of a different size adjust the cylinder band accordingly see Section 3 7 Adjusting Cylinder Bands 5 Slide the charged cylinder into the frame ensuring that it is correctly located against the end of the frame 6 Fit and securely tighten the cylinder connector 7 Position the cylinder band around the cylinder and secure by turning the butterfly 12 MODUL AIR 2 catch 90 clockwise and folding the catch flat Minor adjustments can be made us
17. nual which is available from Training and Technical Support Services at Scott Health and Safety Limited upon completion of a formal training course in maintenance of the apparatus 3 In order to maintain correct functioning of the equipment if it is subjected to excessive use it may be necessary to test the equipment on a more frequent basis than that stipulated tyco SCOTT HEALTH amp SAFETY Sabre Breathing Apparatus Scott Health and Safety Limited Pimbo Road West Pimbo Skelmersdale Lancashire WN8 IRA England Tel 44 0 1695 711711 Fax 44 0 1695 711775
18. oller and monitor the air supply Under NO circumstances must the equipment be left unmanned when wearers are being supplied from the unit 4 1 EXTERNAL AIR SUPPLY WITH CYLINDER BACK UP If the low pressure alarm sounds DS4 or medium pressure_ whistle or if the medium pressure gauge falls below 5 bar 1 Fully open one cylinder valve 2 Check that the high pressure gauge reading is greater than 80 and that medium pressure gauge is above 5 bar 3 If required disconnect the external air supply 4 2 CYLINDER SUPPLY If the high pressure warning whistle sounds f Open the next designated cylinder valve fully 2 Close the cylinder valve and open the bleed screw on the empty cylinder 3 Follow the instructions in Section 3 6 to replace the empty cylinder 4 Mark the empty cylinder accordingly and store separately from full cylinders MODUL AIR 2 5 AFTER USE The following procedure covers all options available with Modul Air 2 and covers the apparatus in general 1 Close the cylinder valve and open the bleed screw on the active cylinder 2 Switch off the DS4 unit by turning the key in a counter clockwise direction 3 Disconnect the external air supply 4 Open the breathing apparatus bypass and vent air from the pneumatics 5 Replace used cylinders with fully charged cylinders 6 Disconnect the breathing apparatus from the airline Clean test and inspect the breathing ap
19. paratus in accordance with the appropriate User Manual 7 Examine hoses for damage or excess wear such as splits kinks and abrasions Replace damaged or worn hoses 8 Examine all couplings for wear or damage and ensure that all connections are securely made Replace items with worn or damaged connectors 9 Rewind the airline hose onto the hose reel 14 10 Connect the hose CEJN outlet to the parking connector on the hose reel This prevents the hose unwinding and vents any pressure left in the medium pressure circuit NY 11 Firmly grasp and pull the winding handle knob away from the hose reel Fold the knob against the handle 6 CLEANING CAUTION Do not drop the hose ends onto the floor as this may damage the couplings 1 Clean all parts of the apparatus with a mild soap and water solution followed by a thorough rinse with clean water Unwind the hose to ensure that all parts are cleaned 2 Allow to dry away from direct heat Dry the air hose thoroughly prior to rewinding onto the reel 3 Inspect all parts of the apparatus for damage and check the function of CEJN hose couplings 4 Follow the cleaning instructions given in the breathing apparatus DS4 and AFU User Manuals 15 MODUL AIR 2 7 BREATHING APPARATUS LOG A breathing apparatus Log must be maintained for each apparatus and must be retained for future reference A breathing apparatus Logbook
20. s Manual for further details WARNING DO NOT use the equipment if the yellow low battery level warning light is illuminated DO NOT remove the DS4 battery compartment cover in a potentially explosive or flammable atmosphere 3 3 AIR FILTER UNIT 1 Check that the AFU pop up indicator is GREEN and that the medium pressure gauge needle is in the green sector 2 Listen for audible leaks from the unit 3 Follow the instructions given in the breathing apparatus User Manual and connect the breathing apparatus pigtail and facemask s to the airline hose s Pull the connections firmly to ensure that they are secure 4 On ALL breathing apparatus connected turn the DV bypass valve s to the ON position With air free flowing from the DV s check that the medium pressure gauge stays in the green sector and that the DS4 does not alarm 5 Turn the DV bypass valve s to the OFF position and check that air no longer flows from the DV s 6 Perform all pre use checks detailed in the User Manual of the breathing apparatus to be used with Modul Air 2 3 4 INITIAL CHECKS CYLINDER SYSTEM 1 Check that the cylinder connector s is are connected to the cylinder valve s and that all bleed screws are closed 2 Open the bleed screw OPPOSITE the cylinder to be tested 3 Open the cylinder valve to be tested and check that the high pressure gauge shows at least 80 full 11 MODUL
21. system Systems designed to supply 4 wearers are provided with 2 pressure reducers to ensure sufficient flow rate The reducers are connected to a common high pressure manifold The high pressure manifold has ports that can accommodate Outlets for up to two pressure reducers e Inlets for up to four cylinder connectors An outlet for a high pressure warning whistle An outlet for a high pressure gauge Systems that do not use all ports have blanking plugs fitted to unused ports Medium pressure air is output by the reducer either directly to wearer supply airlines or on hose reel versions to a manifold on the hose reel hub The high pressure warning whistle sounds when pressure in the on line cylinder falls below 55 bar MODUL AIR 2 2 3 PRESSURE REDUCER The pressure reducer is a single stage spring and piston device with an internal pressure relief valve that protects the medium pressure system from over pressurisation There are ports in the reducer which accommodate e An outlet to the medium pressure gauge A medium pressure outlet to the wearers The medium pressure inlet from an external supply or an AFU optional An outlet to the medium pressure warning whistle optional Air from the cylinder flows through the high pressure manifold enters the reducer through a jet and flows through the hollow piston stem to a chamber above the piston As pressure in the chamber ris
22. t fails any of the following tests Withdraw the unit from service attach an explanatory note and return for servicing 3 1 INITIAL CHECKS AIRLINE SYSTEM 1 Check that the apparatus is clean and free from damage 2 Check that the apparatus is complete that the cylinders are fully charged and that the cylinder valves and bleed screws are closed fully clockwise tf 3 Check that the AFU sight glasses are clean and dry If required follow the instructions given in the AFU User Manual to clean them 4 Check that the external air supply is pressurised and that the quality of air conforms to the requirements detailed in Section 1 2 of this Manual 10 3 2 DS4 ALARM WARNING The sound emitted by the DS4 alarm is VERY loud Warn others before activating the alarm 1 Activate the DS4 alarm by inserting the key into the switch and turning the key in a clockwise direction 2 Confirm that the red warning light illuminates and the audible alarm sounds 3 Connect Modul Air 2 to the external air supply 4 Once the safe pressure level is reached confirm that the DS4 resets from the alarm condition i e the audible alarm ceases the red light extinguishes and the green light illuminates 5 Ensure that the yellow light IS NOT illuminated If the yellow light illuminates the battery level is low and battery replacement is required Please refer to Section 3 8 in thi
23. uld be between 30 C and 60 C When the equipment is in use a competent person MUST remain with the supply system at all times to act as base controller and monitor the air supply Under no circumstances must the equipment be left unmanned when wearers are being supplied from the unit To ensure optimum equipment performance carry out the tests and service procedures detailed in this Manual under Servicing and Scheduled Maintenance Apparatus that fails a routine check must be withdrawn from service an explanatory note attached and the unit returned for repair DISCLAIMER Failure to comply with these instructions or misuse of the apparatus may result in death injury or material damage and invalidate any warranty or insurance claims COPYRIGHT This manual must not be copied in part or whole or used for purposes other than its intended purpose without the written permission of Scott Health and Safety Limited 1 INTRODUCTION 1 1 ABBREVIATIONS The following abbreviations are used in this manual AFU Air Filter Unit DS4 Low Pressure Alarm DV Demand Valve m Metres mg Milligrams min Minute mm Millimetres NRV Non Return Valve PRV Pressure Relief Valve psi Pounds per Square Inch 1 2 BREATHABLE AIR Breathable Air may be natural or synthetic Table 1 shows the composition of natural air Component Mass Volume Dry Air Dry Air Oxygen 23 14 20 95 Nitrogen 75 52 78 08 Argon 1 288 0 934 Carbon Diox
24. use by personnel trained in the use and care of compressed air breathing apparatus and MUST NOT be used as a self teaching guide by untrained users Failure to understand or adhere to the Modul Air 2 User Instructions may result in injury or death Scott Health and Safety Limited have taken great care to ensure that the information in this manual is accurate complete and clear However Training and Technical Support Services will be pleased to clarify any points in the manual and answer questions on Sabre breathing apparatus The following warnings are in accordance with certifying authority requirements and apply to the use of breathing apparatus in general Ensure that the selection of the equipment to be used is sufficient for the tasks being undertaken and the hazards likely to be encountered For guidance on the selection of apparatus to be used with the Modul Air 2 system please contact Training amp Technical Support Services at Scott Health and Safety Limited or refer to EN 529 2005 and the Health and Safety Executive Publication HS G 53 Respiratory Protective Equipment A Practical Guide for Users In Australia and New Zealand ensure that your selection of respiratory protective devices conform to the requirements of AS NZS1715 1994 Anti static supply hoses MUST be used in potentially flammable or explosive atmospheres The equipment is designed for use in a temperature range of 6 C to 60 C The storage temperature sho
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