Invacare MA50 User Manual

Invacare® MA50 Series

MA50 Alternating Pressure Overlay System

MA51 Alternating Pressure Mattress System

MA55 Alternating Pressure Low Air Loss Mattress System

This manual MUST be given to the user of the product.

BEFORE using this product, read this manual and save for future reference.

User Manual

EN

© 2011 Invacare Corporation. All rights reserved. Republication, duplication or modification in whole or in part is prohibited without prior written
permission from Invacare. Trademarks are identified by ™ and ®. All trademarks are owned by or licensed to Invacare Corporation or its subsidiaries
unless otherwise noted.

Invacare® MA50 Series 2 Part No 1148136

CONTENTS

1 GENERAL 4

Symbols .................................................................................................................................................................................................................................................... 4

Limited Warranty .................................................................................................................................................................................................................................. 5

2OVERVIEW 6

Label Location......................................................................................................................................................................................................................................... 6

Typical Product Parameters ................................................................................................................................................................................................................ 7

3 GENERAL GUIDELINES 9

General Guidelines ................................................................................................................................................................................................................................ 9

4OPERATION 14

Installing the Mattress.........................................................................................................................................................................................................................14

Installing the Side Rails........................................................................................................................................................................................................................16

Installing the Power Unit....................................................................................................................................................................................................................17

Connecting the Hose..........................................................................................................................................................................................................................17

Connecting the Power Cord.............................................................................................................................................................................................................19

Using the Front Panel..........................................................................................................................................................................................................................20

Powering Up the System....................................................................................................................................................................................................................25

Placing the Patient on the Mattress.................................................................................................................................................................................................25

Transferring Patient From/To a Gurney......................................................................................................................................................................................... 26

Transferring Patient From/To a Wheelchair................................................................................................................................................................................. 27

Preparing for CPR Procedure...........................................................................................................................................................................................................27

About Power Outage and Transportation.....................................................................................................................................................................................28

5 MAINTENANCE AND TROUBLESHOOTING 29

Cleaning the System............................................................................................................................................................................................................................29

Troubleshooting................................................................................................................................................................................................................................... 32

Part No 1148136

3 Invacare® MA50 Series

1 GENERAL

1 General

1.1 Symbols

Warnings

Signal words are used in this manual and apply to hazards or unsafe practices which could result in personal injury or property damage.
See the information below for definitions of the signal words.

DANGER







Danger indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

Warning indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Caution indicates a potentially hazardous situation which, if not avoided, may result in property damage or minor injury or
both.

!



Invacare® MA50 Series 4 Part No 1148136

IMPORTANT

Indicates a hazardous situation that could result in damage to property if it is not avoided.

Gives useful tips, recommendations and information for efficient, trouble-free use.

1 GENERAL

1.2 Limited Warranty

PLEASE NOTE: THE WARRANTY BELOW HAS BEEN DRAFTED TO COMPLY WITH FEDERAL LAW APPLICABLE TO PRODUCTS
MANUFACTURED AFTER JULY 4, 1975.
This warranty is extended only to the original purchaser who purchases this product when new and unused from Invacare or a dealer. This warranty is
not extended to any other person or entity and is not transferable or assignable to any subsequent purchaser or owner. Coverage under this warranty
will end upon any such subsequent sale or other transfer of title to any other person.
This warranty gives you specific legal rights and you may also have other legal rights which vary from state to state.
Invacare warrants the mattress, mattress overlay and cover when purchased new and unused to be free from defects in materials and workmanship for
a period of one year from the date of purchase from Invacare or a dealer, with a copy of the seller’s invoice required for coverage under this warranty.
Invacare warrants thecontrol unit when purchased new and unused to be free from defects in materials and workmanship for a period of two years from
the date of purchase from Invacare or a dealer, with a copy of the seller’s invoice required for coverage under this warranty.If within such warranty
period any such product shall be proven to be defective, such product shall be repaired or replaced, at Invacare's option. This warranty does not include
any labor or shipping charges incurred in replacement part installation or repair of any such product. Invacare's sole obligation and your exclusive
remedy under this warranty shall be limited to such repair and/or replacement.
For warranty service, please contact the dealer from whom you purchased your Invacare product. In the event you do not receive satisfactory warranty
service, please write directly to Invacare at the address on the back cover. Provide dealer's name, address, model number, and the date of purchase,
indicate nature of the defect and, if the product is serialized, indicate the serial number.
Invacare Corporation will issue a return authorization. The defective unit or parts must be returned for warranty inspection using the serial number,
when applicable, as identification within thirty days of return authorization date. DO NOT return products to our factory without our prior consent.
C.O.D. shipments will be refused; please prepay shipping charges.
LIMITATIONS AND EXCLUSIONS: THE WARRANTY SHALL NOT APPLY TO PROBLEMS ARISING FROM NORMAL WEAR OR FAILURE TO
ADHERE TO THE ENCLOSED INSTRUCTIONS. IN ADDITION, THE FOREGOING WARRANTY SHALL NOT APPLY TO SERIAL NUMBERED
PRODUCTS IF THE SERIAL NUMBER HAS BEEN REMOVED OR DEFACED; PRODUCTS SUBJECTED TO NEGLIGENCE, ACCIDENT,
IMPROPER OPERATION, MAINTENANCE OR STORAGE; OR PRODUCTS MODIFIED WITHOUT INVACARE'S EXPRESS WRITTEN CONSENT
INCLUDING, BUT NOT LIMITED TO: MODIFICATION THROUGH THE USE OF UNAUTHORIZED PARTS OR ATTACHMENTS: PRODUCTS
DAMAGED BY REASON OF REPAIRS MADE TO ANY COMPONENT WITHOUT THE SPECIFIC CONSENT OF INVACARE; PRODUCTS
DAMAGED BY CIRCUMSTANCES BEYOND INVACARE'S CONTROL; PRODUCTS REPAIRED BY ANYONE OTHER THAN AN INVACARE
DEALER, SUCH EVALUATION SHALL BE SOLELY DETERMINED BY INVACARE.
THE FOREGOING EXPRESS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES WHATSOEVER, WHETHER
EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
AND THE SOLE REMEDY FOR VIOLATIONS OF ANY WARRANTY WHATSOEVER, SHALL BE LIMITED TO REPAIR OR REPLACEMENT OF
THE DEFECTIVE PRODUCT PURSUANT TO THE TERMS CONTAINED HEREIN. THE APPLICATION OF ANY IMPLIED WARRANTY
WHATSOEVER SHALL NOT EXTEND BEYOND THE DURATION OF THE EXPRESS WARRANTY PROVIDED HEREIN. INVACARE SHALL
NOT BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES WHATSOEVER.
THIS WARRANTY SHALL BE EXTENDED TO COMPLY WITH STATE/PROVINCIAL LAWS AND REQUIREMENTS.

Part No 1148136 5 Invacare® MA50 Series

2 OVERVIEW

DANGER-EXPLOSION HAZARD: DO NOT use in the presence of flammable anesthetics.

CAUTION: Equipment should be connected to a properly grounded receptacle (3-prong). Risk of
Electrical shock. DO NOT remove back. Disconnect air hose before administering CPR.

WARNING

Patient entrapment with bed side rails may cause injury or death. Mattress MUST fit bed frame and side rails
snugly to prevent patient entrapment. Follow the manufacturer’s instructions. Monitor patient frequently.
Read and understand the Owner’s/Operator’s Manual prior to using this equipment. Invacare product
manuals are available at www.invacare.com or your dealer. p/n1150708 Rev A



This label is on the back of the
unit and also contains the serial
number

2 Overview

2.1 Label Location

Invacare® MA50 Series 6 Part No 1148136

2.2 Typical Product Parameters

Electrical Parameters

MA50/MA51/MA55

INPUT VOLTAGE AC: 90 V

INPUT FREQUENCY: 60 Hz

CURRENT: 1 A

MAXIMUM POWER CONSUMPTION: 5 ± 3 W

CIRCUIT PROTECTION: Dual fused, 250 V, 1 A fast blow fuses

MODE OF OPERATION: Continuous

Environmental Parameters

MA50/MA51/MA55

OPERATING CONDITIONS

AMBIENT TEMPERATURE:
RELATIVE HUMIDITY:
ATMOSPHERIC PRESSURE:

STORAGE AND SHIPPING CONDITIONS

AMBIENT TEMPERATURE:
RELATIVE HUMIDITY:
ATMOSPHERIC PRESSURE:

10% - 100% Non-Condensing

50° - 104° F

30% - 75% Non-Condensing

70 - 106 kPa

-40° - 158° F

50 - 106 kPa

2 OVERVIEW

Part No 1148136 7 Invacare® MA50 Series

2 OVERVIEW

Performance Parameters

MA50/MA51/MA55

WEIGHT CAPACITY
PRESSURE ZONE:
MAXIMUM FLOW:
MAXIMUM FLOW PRESSURE:
MAXIMUM FLOW TIMER:
SUPPORT SURFACE INFLATION TIME:

PATIENT COMFORT CONTROL PRESSURES

SOFT PRESSURE:
FIRM PRESSURE:
CYCLE TIME:

PATIENT CONTACT: Control unit and mattress have Latex-Free com-

Mechanical Parameters

CONTROL UNIT MA50 MA51 MA55

DIMENSIONS
(L X W X H):

WEIGHT: 5 lbs

POWER CORD: 10 - 14 Feet Long, Hospital Grade

CONNECTION: Two ¼” Flow Couplings Three ¼” Flow Couplings

PACKAGING: 1 piece/box

AIR FILTER: None

9” x 5” x 5”

350 lbs

2

8 ± 4 LPM

35 ± 5 mmHg

45 minutes

20 - 45 minutes

8 ± 4 mmHg

32 ± 4 mmHg

5, 10, 15, 20 minutes

ponents

Invacare® MA50 Series 8 Part No 1148136

3 General Guidelines

3.1 General Guidelines

WARNING





DO NOT use this product or any available optional equipment without first completely reading and understanding these
instructions and any additional instructional material such as owner’s manuals, service manuals or instruction sheets
supplied with this product or optional equipment. If you are unable to understand the warnings, cautions or instructions,
contact a healthcare professional, dealer or technical personnel before attempting to use this equipment - otherwise, injury
or damage may occur.

ACCESSORIES WARNINGS

Invacare products are specifically designed and manufactured for use in conjunction with Invacare accessories. Accessories
designed by other manufacturers have not been tested by Invacare and are not recommended for use with Invacare
products.

3 GENERAL GUIDELINES

!

Contraindications



Part No 1148136 9 Invacare® MA50 Series

NOTICE

THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE.
Check all parts for shipping damage and test before using. In case of damage, DO NOT use. Contact Invacare/Carrier for

further instruction.

WARNING

ALWAYS consult the patient’s physician before using the MA50, MA51 and MA55 systems.

3 GENERAL GUIDELINES

Installation

WARNING



The MA50, MA51 and MA55 series is recommended to be installed on medical bed frames with bed side or assist rails. It is
preferred that the rails be in the raised position whenever a patient is on the bed. Health care professionals assigned to
each case should make the final determination whether side or assist rails are warranted after assessing patient risks of
entrapment and falls in accordance with State patient restraint legislation or facility interpretation of such legislation.

Controls on the footboard may be obstructed by the power unit on a few bed frames. It may be necessary to relocate the
power unit. Refer to Installing the Power Unit

Check that air hoses and power cord are clear of moving bed components before placing a patient on the bed. Operate all
bed frame motorized functions through their full range of motion to be certain that there is no pulling, interference or
pinching.

MA51 and MA55 Only - Do not strap the mattress to the bed frame at the head and foot ends. Secure ALL mattress straps.
Secure the straps to the bed deck at the head and foot ends and to the frame at the center of the bed. Otherwise damage
to the mattress will occur when the head and foot ends are raised. Refer to Installing the Mattress

on page 17.

on page 14.

Invacare® MA50 Series 10 Part No 1148136

Fire Hazard



3 GENERAL GUIDELINES

DANGER

Smoking

DO NOT SMOKE while using this device. This system uses room air for circulation through the mattress. A cigarette can
burn a hole in the bed surface and cause damage to the mattress. Also, patient clothing, bed sheets, etc. may be
combustible and cause a fire. Failure to observe this warning can result in severe fire, property damage and cause physical
injury or death.

Smoking by visitors in the room will contaminate the system. Therefore, visitor smoking is NOT permitted.

Anesthesia Equipment

There is an explosion risk if used with flammable anesthetics.

Oxygen

There is a possible fire hazard when used with oxygen administering equipment other than nasal mask or half bed tent type.
The oxygen tent should NOT extend below mattress support level.

Part No 1148136 11 Invacare® MA50 Series