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2010 Technical Education

Concentrator SetConcentrator Set--Up & RepairUp & Repair HomefillHomefill II II SetSet--upupppXP02 IntroductionXP02 Introduction

Topics to be covered:

• Training Manual Overview

• Set Up / Specifications & Preventive Maintenance

• Theory of Operation• Theory of Operation

• Component Identification / Troubleshooting Tips

• PCB Timing Procedure

• Sense O2 Operation

• Error Codes

• Homefill II Set Up & PM

Set Up• Select a convenient well ventilated location in the home.

• Place the concentrator at least 3 inches from walls, furniture and draperies. Avoid placing on deep pile carpets or near heaters, radiators or hot air registers.

• Plug concentrator into electrical outlet. Extension cords are never to be used.

• Connect the humidifier if prescribed.

• Turn unit ON and Set the flow meter to the prescribed flow rate. Centre the ball on the L/min line of the flow meter. Note: The flow must be set after everything is connected.

• Connect up to 50 feet of crush proof delivery tubing and a 7 foot cannula.

• The concentrator may be used during the initial start warm up period (approximately 30 min.) while waiting for the O2 purity to reach maximum.

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Specifications• Electrical Requirements: 120 VAC +/- 10% (132 VAC / 108VAC), 60 HZ.

• Operating Altitude:

5 LPM: Up to 6,000 ft. (1828 meters) above sea level without degradation of

concentration levels.

10 LPM: Up to 4,000 ft. (1230 meters) above sea level without degradation of p , ( ) g

concentration levels.

• Oxygen Output: 95.6% to 87% @ ½ to 5 L/min (5L) @ 2 to 10 L/min (10L)

Levels achieved after initial warm up period (approximately 30 minutes).

• Outlet Pressure: 5 LPM: 5 +/- .5 p.s.i. 10 LPM: 9 +/- .5 p.s.i.

• Low Flow Alarm: 5 LPM: 0 L/min. to .5 L/min. 10 LPM: 0 L/min. to 1 L/min.

generates a rapid audible alarm.

Preventive Maintenance

• On Each Inspection: Record date of service. Record hour meter reading. Clean cabinet filters. Check prescribed L/min. flow rate.

• Annually or During PM Schedule: Clean/ replace cabinet filters. Check outlet HEPA filter. Check compressor inlet filter. Check O2% and power loss alarm.

• As Required: Clean heat exchanger. Replace exhaust muffler. Rebuild top end of compressor.

Theory Of Operation

What Is An Oxygen Concentrator?

• Device That Takes In Room Air

Adsorbs Nitrogen Content Of This Air (Under Pressure)• Adsorbs Nitrogen Content Of This Air (Under Pressure)

• Provides Patient With Supplemental Oxygen (as high as 95.6% purity).

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How Is This Accomplished?

• Pneumatic Components– Produces Compressed Air Supply– Routes Compressed Air Supply In & Out Of The Two Sieve Canisters– Regulates Oxygen Delivery Pressure And FlowRegulates Oxygen Delivery Pressure And Flow

• Electrical Components– Provides Controlling And Monitoring Functions– Distributes Electrical Power (120VAC & 24VDC) Required For Operation

Pneumatic Components

nt D

iagr

am TO PATIENT

TEST P O INT 1

TEST P O INT 3

TEST P O INT 2

B ACTERIAFILTER FLO WM ETER

PRESSUREREGULATO R

FLOWRESTR ICTOR

O PTIONALOXYGENSENSOR

PR ODUCT TANK

P .C. BO ARDSENSOR

PE VALV E

PATIENT OUTLET AIR 95% - OXYG EN - O2 3.5% - NITROG EN - N2 .9% - ARGO N - Ar .03% - CARBO N DIOXIDE - CO2

PNEUMATIC DIAGRAMINVACARE LX SERIES OXYGEN CONCENTRATORS

1 2

1 6

1 5

1 4 1 3

1 1 L1 1 R

CHECK VALVES

Com

pone

n

SIEVEB ED

SIEVEB ED

RESTR ICTO R

4 -W AYVALVE

EXHAUSTMUFFLER

INLET FILTER

RESO NATO R

AIRCOM PRESSOR

RELIEFVALVE3 5 PSI

HEAT EXCHANGER

C ABINET(GRO SS PARTICLE)

FILTER

AIR INLET

ROOM AIR 78% - NITROG EN - N2 21% - OXYGEN - O2 .9% - ARGO N - Ar .03% - CARBO N DIOXIDE - CO2

F AN

4 A

4

1

2

3

5

6

7

8 L 8 R

1 0

9

C APACITOR

S OLENOIDPILOT VALV E

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Gross Particle Filter

• Used To Stop Large Particles Of Dirt (i.e. Lint, Hair, Etc)• 20 PPI (Pores Per Inch) Rating• Clean Weekly With Mild Soap And Water

Platinum 10L PerfectO2 Old style G.F. PerfectO2

Compressor Inlet Filter

• Filters Air Being Drawn Into The Compressor• Removes Particles Down To .1Micron In Size• Check Annually Or During Preventive Maintenance Schedule• Replace As Necessary

Platinum 10L PerfectO2

Compressor

• Provides Pressurized Air For System Operation• Must Achieve At Least 21 PSI Working Pressure • Rebuild Or Replace As Required

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Heat Exchanger

• Reduces Heat Produced By Compression Of Air • Transfers Heat Into The Air Stream Supplied By The Cooling Fan• Clean As Required

4 – Way Valve

• Directs Compressed Air Into The Sieve Beds• Directs Exhaust Nitrogen Out Of The Sieve Beds• Utilizes Two Ceramic Plates To Direct Air Flow• Operated By An Electronic Solenoid Valve• No Maintenance Required• Not Completely Leak Tight (600cc Leak Allowable)

Sieve Canisters

• Filled with Nitrogen Selective Zeolite ( Molecular Sieve Material)• Spring Loaded• Sieve Material Strips Nitrogen From The Room Air• Allows The Oxygen And Trace Gasses To Pass Through

Platinum 10L PerfectO2

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Pressure Equalization Valve

• Aids in Purging Nitrogen From The Exhausting Sieve Canister• Pre – Charges The Exhausting Sieve Canister With Oxygen• Has a Built In Restrictor• Operated By An Electronic Solenoid Valve

95.5%24 VDC

PRESSURE EQUALIZATIONVALVE

O2SENSOR

PRESSURETRANSDUCER

CIRCUIT BOARD

CHARGINGSIEVE BED

PRODUCTTANK

PURGING SIEVE BED

SENSEO2

21 PSI

Check Valves

• One – Way Flow Device• Directs Oxygen From The Sieve Canister Into The Product

Canister• Ensures Oxygen Cannot Flow Out Of The Product Canister

Into The Exhausting Sieve Canister

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Product Canister

• Stores Oxygen For Delivery To Patient

• 1-1/2 Liter In Size

Platinum 10L PerfectO2

Pressure Regulator

• Maintains Oxygen Delivery Pressure

• Adjustable

• Ensures Proper Flow Through The Flow Meter

Outlet HEPA Filter

• Final Filter In Patient Oxygen Flow• Filters Particles Down To .3 Micron In Size• Check Annually Or During Preventive Maintenance Schedule• Replace As Required

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Flow Meter

• Gas Measuring Device • Controls Amount Of Oxygen Dispensed To The Patient• 5 LPM Adjustable In 1/2 Liter Increments From 0 to 5 LPM• 10 LPM Adjustable In 1 Liter Increments From 2 to 10 LPM

Homefill Port

• Provides Oxygen Flow From The Concentrator To The HomefillCompressor

• Oxygen Only Flows Through Connector When Connected To The HomefillCompressor (2 L/min.)

• Standard Feature On All Platinum Concentrators

Electrical Components

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Power Cord

• Double Insulated• Meets UL & CSA Requirements For Double Insulation• UL 1097 & UL 1431• UL 1097 & UL 1431• CSA C22.2 No. 68

Circuit Breaker

• Protects Concentrator

• Thermal Switch

Power Switch

• Double Pole Single Throw Switch

• One Side Completes 120 VAC Power Circuit

• One Side Completes 12VDC Alarm Circuit

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Circuit Board

85% or Greater than = Green Light 73% - 84% = Yellow Light Less than 73% = Red light and unit shuts down.

• Routes 120 VAC To Compressor, Cooling Fan & Hour Meter• Pressure Transducer Determines When 4-Way Valve Shifts

Based On Pressure In The Product Canister• O2 Sensor Determines Level Of Oxygen Delivered To Patient

TECHNICAL ILLUSTRATIONENSS O 2

OR

RED

YELLOW

GREEN

SENSO2 OPERATION

• A precise amount of gas passes through the orifice to the oxygen sensor.

• As the gas enters the sensor it passes a screen and contacts the top electrode of the Zirconia Disk.

• Power applied from the top electrode to the bottom electrode heats the disk to over 570 degrees F (298.88 degrees C).

• Oxygen molecules on the top of the disk pick up an extra l t b i ielectron, becoming oxygen ions.

• The ions are attracted to the electrode on the bottom of the disk. Due to the structure of the Zirconia, only the oxygen ions can pass through it.

• Once the ions reach the bottom electrode, the extra electron is dropped from the oxygen molecule as the molecule returns to air.

• The number of electrons is directly related to the oxygen % in the gas.

• The electrons travel to the PCB where they are counted and translated into the oxygen concentration reading.

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Circuit Board (Cont)

• Capacitor Stores Power To Sound The Audible Alarm• Error Code Lights Provide Troubleshooting Assistance

(Units Manufactured After 12-02 Retain Error Codes)• Auto Tune Switch To Re-Optimize O2 Performance

Cooling Fan

• Pulls Room Air Into The Cabinet And Passes The Air Over The Heat Exchanger And The Compressor

Compressor

Requires 120 VAC +/- 10%• 280 Watt Average Power @ 120 VAC ( PerfectO2)• 400 Watt Average Power @ 120 VAC ( Platinum 5)• 585 Watt Average Power @ 120 VAC ( Platinum 10)

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Capacitor

• Stores Electrical Charge That Aids The Compressor At Start Up• 15 MFD + 10% - 5% Thomas Compressors • 10 MFD + 10% - 5% Gast Compressors• 30 MFD + 10% - 5% Thomas Compressor (10 Litre)• Always Discharge Before Removing / Testing

Transformer

• Steps down 120 VAC

Pilot Valve (Solenoid)

• Operates From 24 VDC Signal From Circuit Board

• 60 to 90 OHMS Resistance Indicates Good Coil

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Pressure Equalization Valve

• Operates From 24 VDC Signal From Circuit Board

• 60 To 90 OHMS Resistance Indicates Good Coil

• 155 to 195 OHMS Resistance Indicates Good Coil on PerfectO2 only.

Audible Alarm

• Powered By Capacitor On The Circuit Board• No Battery to Replace • Test before placing the unit in service

Questions?

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Homefill II Compressor

Specifications

• Double Insulated complying with UL1097(US) and CAN/CSA C22.2 No. 68 (Canada).

• Operating Temperature: 50° to 90° F(10 to 35° C)

• Storage Temperature: -10° to 150° F (-23 to 65° C)

I t P R i d 14 21 PSI• Input Pressure Required: 14 – 21 PSI

• Input Flow Required: 2 L/min

• Input O2% Required: 90% minimum

• Weight: 33 lbs.

• Shipping Weight: 39 lbs.

Set Up

• Select location at least 3” away from walls, draperies or furniture on a hard flat stable surface such as a table.

• Plug the power cord into the back of the unit and into the wall outlet.

• Insert one end of the interconnect hose into the outlet fitting on the back of the concentrator and insert thefitting on the back of the concentrator and insert the opposite end into the fitting on the side of the compressor.

• Turn the concentrator “ON” and verify the flow is not above 3 L/min to the patient.

• Perform Cylinder Pre-fill inspection.

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Cylinder Pre-fill Inspection

• FDA requires the use of only Invacare provided cylinders approved for use with the Homefill system.

• Verify the hydrostatic testing date. (Must be tested every 5 years)

• Inspect the cylinder for damage such as: dents, burns, oil, grease or any other signs of damagegrease or any other signs of damage.

• Inspect the valve for debris, oil, grease, or other signs of damage.

• Inspect the inside of the valve for signs of corrosion.

Connecting Cylinder to Compressor

• Verify cylinder pressure is less than 1500 psig.

(pound-force per square in guage)

• Do Not attempt to top off cylinders.

• Set the regulator flow knob to “0”.

• Position the cylinder in the compressor cradle.

• Align the cylinder fill port with the compressor fill port.

• Pull UP on the connector fill port ring while pushing DOWN on the cylinder to insert the cylinder into the compressor fill port. The cylinder is properly connected when an audible “click” is heard.

Turning Compressor On

• Ensure the concentrator is “ON” and the flow to the patient is not greater than 3 L/min.

• Push the power switch to the “ON” position.• The following will occur:

– 0-3 Minutes: Prior to August 2006: The WAIT (Yellow) light g ( ) gwill be on while the compressor warms up (first 3 minutes).

The O2 BELOW Normal (Yellow) light will be on while the compressor warms up.

– After 3 Minutes: The FILLING (Green) light will be on while the cylinder is filling. NOTE: If the O2 BELOW NORMAL (Yellow) light will come on if the O2% from the concentrator drops below 90%.

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Indicator Light Explanation

• None: Compressor is OFF• Wait – Yellow: Prior to August 2006:Compressor is ON

and warming up (3min)• O2 Below Normal – Yellow: O2 from the concentrator isO2 Below Normal Yellow: O2 from the concentrator is

less than 90% after 3 minute warm up period.• Filling – Green: Compressor is ON and cylinder is filling.• Full – Green: Compressor is ON and cylinder has

completed filling.• Attention – Red (Audible Alarm): Compressor is ON

cylinder not filling.

Cylinder Fill Times

• “ML2” Size Cylinders (2 Pounds)– Normal Fill Time: 24 Minutes– Concerved Duration: @ 2.2 HRS @ 2LPM/20 bpm

• “ML4” Size Cylinders (3.1 Pounds)– Normal Fill Time: 1HR

Concerved Duration: @ 4 3 HRS @ 2LPM/20 bpm– Concerved Duration: @ 4.3 HRS @ 2LPM/20 bpm

• “ML6” Size Cylinders (3.5 Pounds)– Normal Fill Time: 75 Minutes– Concerved Duration: @ 6.3 HRS @ 2LPM/20 bpm

• “C” (M9) Size Cylinders ( 4.8 Pounds)– Normal Fill Time: 125 Minutes– Concerved Duration: @ 10.5 HRS @ 2LPM/20 bpm

Gross Particle Filter

• Used To Stop Large Particles Of Dirt (I.e. lint, hair, etc)

• 20 PPI (Pores Per Inch) Rating

• Clean Weekly With Mild Soap And Water

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Fuse Replacement

• Disconnect the power cord from the power inlet• Pull the fuse drawer in the bottom of the power inlet out.• Using a fuse puller remove the rear fuse.• Install replacement 2 Amp fuse.

Field Replaceable Parts

• Interconnect Hose– ¼” straight line P/N 1145487

– 1/8” coiled line P/N 1105177

– ¼” Interconnect Fitting P/N 1145489 (Pack of 10)

– 1/8” Interconnect Fitting P/N 1145488 (Pack of 10)g ( )

• Gross Particle Filter

• Power Cord

• 2 Amp Fuse

• For All Other Repairs Contact Invacare

Questions?

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Invacare XPO2

TM

Portable Oxygen Concentrator

Invacare XPO2

TM

Portable Oxygen Concentrator

~ 6 pounds

~ 7.3 pounds with supplemental battery

S d l l 45 dBSound level: ~45 dB

10" H x 7" W x 4" D

Pulse dose delivery with settings 1-5

2.5 hour battery duration at setting 2

5 hour battery duration with supplemental battery

35 watts at setting 2

Specifications

Electrical Requirements:

• 100-240 VAC 50/60 HZ• 11-16 VDCRated Current Input:

• 1.0 amps @ 120 VAC• 3.3 amps @18 VDC

Operating Altitude:

• Up to 10,000 ft. (3046 meters) above sea level.

Oxygen Output:

• 95.6% to 87% @ ½ to 5 L/min

Levels achieved after initial warm up period (approximately 5 minutes)

Oxygen Flow: Settings 1-5

• Pulse flow delivery. Bolus Volume Ranges from 300-840cc

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Battery Duration / Battery Recharge Time

Battery Duraton:

@ setting 1 = 3.5 Hours @ setting 2 = 2.5 Hours @ setting 3 = 2.0 Hours @ setting 4 = 1.5 Hours @ setting 5 = 1.0 hours

Battery Recharge Time:

4 Hours Recharge time increases if battery is charging while unit is running

Supplemental Battery:

• Doesn’t need separate battery charger uses AC or DC adapter

• Recharge time increases if battery is charging while unit is in use

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Thank you for your time.

I have been your presenter,

Rick Alves