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45 Cards in this Set
- Front
- Back
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Can you wear contact lenses with scba? |
Yes |
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Service life of air bottle |
15 years |
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Hydro testing -Every _ years -hydrod at which pressure |
-every 5 years -tested at 5/3 of working pressure(7500psi) |
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If air saver switch is not pressed a 45 min bottle will empty how fast? |
4 minutes |
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Trouble shooting: what to do if manual shut off fails to release |
Twist purge valve downward 180° to start flowing air |
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Trouble shooting: failure of MMR in open position and closed position |
Open position- open purge fully and partially close cylinder valve Closed position-turn purge valve counter clockwise |
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When does the VIB alert go off |
When cylinder is at 25% of air capacity |
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HUD light Indicators |
Full- 2 green lights 3/4- 1 green light 1/2- Yellow light flashing slowly 1/4- red light on far left rapidly (10 per sec) |
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How long of being motionless does PASS activate prealarm and full alarm |
Prealarm-20 seconds Full alarm-12 sec after (95 decibels at around 10 ft away) |
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Low battery indicators |
-Chirp every 2 sec -green light on control console will go out -HUD 5th light illuminate for 20 sec then slowly flash once per sec |
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Which NFPA covers open circuit SCBAs |
Nfpa 1981 (2013 edition) |
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Who makes air cylinders |
Luxfur |
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Air bottle materials and process |
Materials- 6061 aluminum Carbon fiber Fiberglass Resin (this is why it's called composite) Process- Deep drawn process creates a seamless cylinder from one piece of aluminum |
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Which material gives the bottle most of its strength |
Carbon fiber Without it it would rupture at 900 psi |
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30 min bottle and 45 min bottle holds how much air? |
30 min- 45 cu Ft of type 1 grade D air 45 min- 87 cu ft of type 1 grade D air |
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Operating tempuratures |
125°-165° F |
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MMR flow rate and material |
Flows up to 125 LPM Fiberglass reinforced nylon cover and body protects the internal components |
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Transport Canada # |
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Department of transport number |
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Cylinder serial number |
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Manufacture date |
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Duration in minutes based on 40LPM |
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Scott part number |
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Cylinder bar code |
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Elastic expansion number measured when hydro tested |
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Luxfer part number |
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Valve assembelly -who make the valve -Constructed from what |
Manufacturer- Sherwood Constructed from forged aluminum |
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Hand wheel/cylinder valve knob |
Spring loaded with ratchet type lock Must depress to shut valve close Prevents accidental shut off/on |
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Material? Purpose? Torque spec? |
Frangible disk wafer Purpose-prevents over pressurization Material-copper wafer Purpose-prevents over pressurization Torque- 125LBS which = 7500PSI If disk ruptures place OOS Torque- 125LBS which = 7500PSI If disk ruptures place OOS |
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Discharge Port, why is there a hole there |
Hole drilled into threads for: -high pressure release -other scba systems will not seat properly causing air to escape -used as safety feature so low pressure/ other manufacturers bottles are not damaged |
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High pressure hose |
Connects to cylinder through RIC/UAC connection -made of wire mesh and covered by neoprene rubber liner |
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Dual pressure reading gauge 0-40 in incriments of 10 Protected by elastrometric bumper guard |
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RIC/UAC connection |
-Has a high pressure gauge if the pressure exceeds 4500psi -universal connection to allow other manufactures to trans-fill bottle -for emergency purposes only -quick detatch port -equalizes pressure in both bottles |
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High pressure coupling |
-Has a hex on it so only a wrench can loosen -has gray O-ring |
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Pressure reducer (box) |
Primary reducer is constructed of aluminum alloy -85-110 psi Secondary reducer 145psi-165psi is activated when approx. 5 min. Is left in bottle or 1,250 psi in a 30 min bottle |
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Low pressure hose/MMR HUD connection Low pressure hose supplies air at 85-110 psi or 145-165 psi depending if primary reducer or secondary reducer |
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HUD AA battery conection HUD wire/low pressure hose |
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MMR |
-Delivers air just above atmospheric pressure 14.7 - spray bar directs air to mask which de fogs the mask -purge valve can be used to de fog as well and as an emergency by pass if regulator fails |
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AV2000 mask Lense made of polycarbonate Two voice emitter ports Nose cup- made of neoprene rubber Head harness-made of kevlar consisting of temple strap and chin strap Voice amplifier-powered via 9V battery, green light for charged battery Sizes: green-small
Black-comfort seal Black-medium Black-comfort seal Maroon-large Maroon-large |
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AV3000 mask Sizes: green-small Black- medium Black- large Head harness-made of Kevlar consists of temple strap and chin strap Nose cup- made of neoprene rubber |
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AP50 back frame and harness |
Hip and shoulder straps-kevlar Designed to carry weight on hips Remote pressure gauge with SEMS Pack alert sensor module Cylinder latch with tri-slide buckle |
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Ap50 Pak alert system |
Operates by motion Located in hip area of backframe Manual alarm press red button once To quiet alarm yellow button twice Check batteries yellow button once-green=good red=bad |
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SEMS remote pressure guage |
SEMS-scotts electronic management system Should read no more than 100psi off of cylinder PDA personal distress alarm PDR-personal distress receiver 1/4 in red Iridium dial glows in dark |
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EBSS |
Emergency breathing support system Protected by neoprene dust cap Once connected FF looses HUD system Distance between FF must be close or else FF crawling behind FF mask will be pulled away |
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Care and maintenance |
-Check daily and after each use -Inspect mask for damage -Check voice amp battery level -Inspect cylinder and pak for dents, scrapes, cuts, tears -cylinder must be at 90% capacity -check manufacture date/hydro date -make sure straps are fully exteneded and donning switch is fully depressed -clean with mild soap and warm water -clean MMR by depressing donning switch and close purge, spraying 6 full pumps of scotts-multi wash into regulator opening and swirl to completely cover internal components. Shake out excess liquid and dry for 10 minutes |
