Hill-Rom ELI 250c Resting Electrocardiograph User manual

Welch Allyn

®

ELI

®

250/ ELI

®

210

Service Manual

Manufactured by Welch Allyn, Inc. Skaneateles Falls, NY U.S.A.

CAUTION: Use of this service manual is intended for qualified service personnel only.

CAUTION: Federal law restricts this device for sale to or on the order of a physician.

this document may be transmitted, reproduced, used, or disclosed outside of the receiving organization without

the express written consent of Welch Allyn, Inc.

Welch Allyn is a registered trademark of Welch Allyn, Inc

For patent information, please visit www.welchallyn.com/patents

For information about any Welch Allyn product, visit: https://www.welchallyn.com/en/about-us/locations.html

Customer Service and Technical Support: https://www.welchallyn.com/en/other/contact-us.html 1.888.667.8272,

mor_tech.su[email protected]

9516-163-50-ENG Rev.D

Revision Date: 2019-12

EU IMPORTER

Welch Allyn, Inc.

4341 State Street Road

Skaneateles Falls, NY 13153 USA

www.welchallyn.com

Welch Allyn Limited

Navan Business Park, Dublin Road,

Navan, Co. Meath C15 AW22

Ireland

1

TABLE OF CONTENTS

NOTICES ....................................................................................................................................................................................... 4

RESPONSIBILITY OF THE CUSTOMER ................................................................................................................................................................ 4

EQUIPMENT IDENTIFICATION ........................................................................................................................................................................ 4

COPYRIGHT AND TRADEMARK NOTICES ........................................................................................................................................................... 4

OTHER IMPORTANT INFORMATION ................................................................................................................................................................ 4

NOTICE TO EU USERS AND/OR PATIENTS: ............................................................................................................................. .......................... 4

WARRANTY INFORMATION ........................................................................................................................................................... 5

YOUR WELCH ALLYN WARRANTY .................................................................................................................................................................. 5

USER SAFETY INFORMATION ......................................................................................................................................................... 6

WARNING(S) .......................................................................................................................................................................................... 6

CAUTION(S) .............................................................................................................................................................................................. 8

ELECTROSTATIC CAUTION ............................................................................................................................................................................. 8

EQUIPMENT SYMBOLS AND MARKINGS ....................................................................................................................................... 10

SYMBOL DELINEATION .............................................................................................................................. ................................................. 10

GENERAL CARE ............................................................................................................................................................................ 11

SERVICE MANUAL PURPOSE ....................................................................................................................................................................... 11

PERIODIC SAFETY INSPECTIONS ................................................................................................................................................................... 11

PROPER POWER CORD .............................................................................................................................................................................. 11

PROPER FUSE .......................................................................................................................................................................................... 11

DO NOT OPERATE IN EXPLOSIVE ATMOSPHERES .............................................................................................................................. ............... 11

USE ONLY SAFE METHODS OF INTERCONNECTION .......................................................................................................................................... 11

DO NOT MOUNT PRODUCT ABOVE PATIENT .............................................................................................................................. .................... 11

RECOMMENDED ACCESSORIES .................................................................................................................................................................... 11

STERILIZING THIS PRODUCT ........................................................................................................................................................................ 12

LIQUID SPILLS .......................................................................................................................................................................................... 12

DISPOSAL ................................................................................................................................................................................................ 12

MAINTENANCE AND CLEANING ................................................................................................................................................... 13

INTRODUCTION ........................................................................................................................................................................................ 13

RECOMMENDED CLEANING SUPPLIES ............................................................................................................................................................. 13

EQUIPMENT REQUIRED .............................................................................................................................. ................................................ 13

CLEANING AND INSPECTING TECHNIQUES ...................................................................................................................................................... 14

INTERIOR CLEANING .............................................................................................................................. .................................................... 14

MAGNETIC CLEANING ............................................................................................................................................................................... 14

.............................................................................................................................. ............................................................................... 14

PRINTED CIRCUIT BOARD CLEANING .............................................................................................................................. ................................. 14

METALLIC AND PLASTIC PARTS CLEANING ..................................................................................................................................................... 15

EXTERIOR CLEANING ................................................................................................................................................................................. 15

PRINTHEAD CLEANING .............................................................................................................................. ................................................. 15

INSPECTION OF WRITER ASSEMBLY HARNESS .............................................................................................................................. ................... 15

EXTERIOR INSPECTION ............................................................................................................................................................................... 16

INTERIOR VISUAL INSPECTION .............................................................................................................................. ........................................ 16

PREVENTATIVE MAINTENANCE SCHEDULE: .................................................................................................................................................... 16

SYSTEM SETTINGS ....................................................................................................................................................................... 17

CHAPTER PURPOSE ................................................................................................................................................................................... 17

ACCESS CONFIGURATION MENUS ................................................................................................................................................................ 17

2

SUMMARY OF CONFIGURATION MENUS ....................................................................................................................................................... 20

CONFIGURATION PAGE 1 ............................................................................................................................. ............................................... 23

CONFIGURATION PAGE 2 ............................................................................................................................. ............................................... 25

CONFIGURATION PAGE 3 ............................................................................................................................. ............................................... 28

CONFIGURATION PAGE 4 ............................................................................................................................. ............................................... 30

CONFIGURATION PAGE 5 ............................................................................................................................. ............................................... 31

CONFIGURATION PAGE 6 (OPTIONAL LAN CONNECTIVITY) ............................................................................................................................... 32

CONFIGURATION PAGE 6, CONTINUED (OPTIONAL WLAN CONNECTIVITY) .......................................................................................................... 33

CONFIGURATION PAGE 7(OPTIONAL WLAN CONNECTIVITY, CONTINUED) ........................................................................................................... 34

ACCESS CONFIGURATION MENUS FOR THE ELI 210 ........................................................................................................................................ 35

SUMMARY OF CONFIGURATION MENUS ....................................................................................................................................................... 37

CONFIGURATION PAGE 1 ............................................................................................................................. ............................................... 39

CONFIGURATION PAGE 2 ............................................................................................................................. ............................................... 41

CONFIGURATION PAGE 3 ............................................................................................................................. ............................................... 43

ASSEMBLY/DISASSEMBLY OF UNIT .............................................................................................................................................. 44

FUSE REMOVAL ........................................................................................................................................................................................ 44

COVER ASSEMBLY REMOVAL / INSTALLATION .................................................................................................................................................. 45

BATTERY REMOVAL ................................................................................................................................................................................... 50

KEYBOARD/LCD REMOVAL ........................................................................................................................................................................ 50

WRITER REMOVAL / INSTALLATION .............................................................................................................................. ................................ 54

PRINTHEAD REMOVAL / INSTALLATION .......................................................................................................................................................... 56

WRITER MOTOR REMOVAL / INSTALLATION .................................................................................................................................................. 58

PRINTED CIRCUIT BOARD ASSEMBLY REMOVAL / INSTALLATION ........................................................................................................................ 60

FRONT END BOARD REMOVAL AND REPLACEMENT ......................................................................................................................................... 62

TECHNICAL DESCRIPTION ............................................................................................................................................................ 64

INTRODUCTION ........................................................................................................................................................................................ 64

ELI 250/210 BLOCK DIAGRAM .................................................................................................................................................................. 65

MAIN SYSTEM BOARD ............................................................................................................................................................................... 66

FRONT END BOARD ................................................................................................................................................................................... 67

SPECIFICATIONS ....................................................................................................................................................................................... 68

PARTS LIST .............................................................................................................................................................................................. 69

HARDWARE .............................................................................................................................. ............................................................... 70

TROUBLESHOOTING AND TESTING .............................................................................................................................................. 71

INTRODUCTION ........................................................................................................................................................................................ 71

TROUBLESHOOTING .................................................................................................................................................................................. 71

TESTING ................................................................................................................................................................................................. 73

ELI250/210 TEST DATA RECORD ........................................................................................................................................................... 84

APPENDIX A ELI 250 CONNECTIVITY ............................................................................................................................................. 85

CHAPTER PURPOSE .................................................................................................................................................................................... 85

DIRECT CONNECTION ................................................................................................................................................................................ 87

MODEM TRANSMISSION .............................................................................................................................. .............................................. 87

MODEM INITIALIZATION ............................................................................................................................................................................ 87

WLAN TRANSMISSION.............................................................................................................................................................................. 89

LAN TRANSMISSION ................................................................................................................................................................................. 90

PATIENT REQUEST LIST .............................................................................................................................. ................................................. 95

APPENDIX B ELI 250 CONNECTIVITY OPTIONS .............................................................................................................................. 99

MODEM OPTIONS .................................................................................................................................................................................... 99

XIRCOM MODEM ................................................................................................................................................................................... 99

XIRCOM MODEM REMOVAL ..................................................................................................................................................................... 100

MULTITECH MODEM .............................................................................................................................................................................. 101

3

MULTITECH MODEM REMOVAL ................................................................................................................................................................ 101

LAN OPTION .............................................................................................................................. ........................................................... 103

LAN CARD REMOVAL .............................................................................................................................................................................. 103

REMOVAL OF THE LAN INTERFACE BOARD, ITEM#58. ................................................................................................................................... 104

LAN CARD INTERCONNECT CABLES. ........................................................................................................................................................... 105

WIRELESS LAN OPTION........................................................................................................................................................................... 106

WIRELESS LAN CARD (WLAN) REMOVAL .............................................................................................................................. ..................... 107

4

NOTICES

Manufacturer’s Responsibility

Welch Allyn, Inc., is responsible for the effects on safety and performance only if:

•

Assembly operations, extensions, readjustments, modifications or repairs are carried out only by persons

authorized by Welch Allyn, Inc.

•

The device (ELI 250/210) is used in accordance with the instructions for use.

Responsibility of the Customer

The user of this product is responsible for ensuring the implementation of a satisfactory maintenance schedule.

Failure to do so may cause undue failure and possible health hazards.

Equipment Identification

Welch Allyn, Inc. equipment is identified by a serial and reference number on the back of the device. Care should

be taken so that these numbers are not defaced.

Copyright and Trademark Notices

This document contains information that is protected by copyright. All rights are reserved. No part of this

document may be photocopied, reproduced or translated to another language without prior written consent of

Welch Allyn, Inc.

Other Important Information

The information in this document is subject to change without notice.

Welch Allyn, Inc. makes no warranty of any kind with regard to this material including, but not limited to,

implied warranties of merchantability and fitness for a particular purpose. Welch Allyn, Inc. assumes no

responsibility for any errors or omissions that may appear in this document. Welch Allyn Inc. makes no

commitment to update or to keep current the information contained in this document.

Notice to EU Users and/or Patients:

Any serious incident that has occurred in relation to the device, should be reported to the manufacturer and the competent

authority of the Member State in which the user and/or patient is established.

5

WARRANTY INFORMATION

Your Welch Allyn Warranty

WELCH ALLYN, INC. (hereinafter referred to as “Welch Allyn”) hereby warrants that Welch Allyn products (hereinafter

referred to as “Products”) shall be free from defects in material and workmanship under normal use, service and

maintenance for the warranty period of such Product from Welch Allyn or an authorized distributor or representative of

Welch Allyn. Normal use, service and maintenance means operation and maintenance in accordance with appropriate

instructions and/or information guides. This Warranty does not apply to damage to the Products caused by any or all of

the following circumstances or conditions:

a)

Freight damage;

b)

Parts and/or accessories of the Products not obtained from or approved by Welch Allyn;

c)

Misapplication, misuse, abuse and failure to follow the Product instruction sheets and/or information guides;

d)

Accident, a disaster affecting the Products;

e)

Alterations or modifications to the Products not authorized by Welch Allyn;

f)

Other events outside of Welch Allyn’s reasonable control or not arising under normal operating conditions.

THE REMEDY UNDER THIS WARRANTYIS LIMITED TO THE REPAIR OR REPLACEMENT WITHOUT CHARGE

FOR LABOR OR MATERIALS, OR ANY PRODUCTS FOUND UPON EXAMINATION BYWELCH ALLYN TO

HAVE

BEEN DEFECTIVE. This remedy shall be conditioned upon receipt of notice by Welch Allyn of any alleged defects

promptly after discovery thereof within the warranty period. Welch Allyn’s obligations under the foregoing warranty will

further be conditioned upon the assumption by the purchaser of the Products (i) of all carrier charges with respect to any

Products returned to Welch Allyn’s principal place or any other place as specifically designated by Welch Allyn or an

authorized distributor or representative of Welch Allyn, and(ii) all risk of loss in transit. It is expressly agreed that the

liability of Welch Allyn is limited and that Welch Allyn does not function as an insurer. A purchaser of a Product, by its

acceptance and purchase thereof, acknowledges and agrees that Welch Allyn is not liable for loss, harm or damage due

directly or indirectly to an occurrence or consequence there from relating to the Products. If Welch Allyn should be found

liable to anyone under any theory (except the expressed warranty set forth herein) for loss, harm or damage, the liability of

Welch Allyn shall be limited to the lesser of the actual loss, harm or damage, or the original purchase price of the Product

when sold.

EXCLUDED FROM THE LIMITED WARRANTYSET FORTH ABOVE ARE CONSUMABLE ITEMS SUCH AS PAPER,

BATTERIES, ELECTRODES, PATIENT CABLES, LEAD WIRES ANDMAGNETIC STORAGE MEDIUMS.

EXCEPT AS SET FORTH HEREIN WITH RESPECT TO REIMBURSEMENT OF LABOR CHARGES, A PURCHASER’S

SOLE EXCLUSIVE REMEDY AGAINST WELCH ALLYN FOR CLAIMS RELATING TO THE PRODUCTS FOR ANY

AND ALL LOSSES ANDDAMAGES RESULTING FROM ANYCAUSE SHALL BE THE REPAIR OR REPLACEMENT OF

DEFECTIVE PRODUCTS TOTHE EXTENT THAT THE DEFECT IS NOTICED AND WELCH ALLYN IS NOTIFIED

WITHIN THE WARRANTYPERIOD. IN NO EVENT, INCLUDING THE CLAIM FOR NEGLIGENCE, SHALL WELCH

ALLYN BE LIABLE FOR INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES, OR FOR ANY OTHER LOSS,

DAMAGEOR EXPENSE OF ANY KIND, INCLUDING LOSS OF PROFITS, WHETHER UNDER TORT, NEGLIGENCE OR

STRICT LIABILITY THEORIES OF LAW, OR OTHERWISE. THIS WARRANTYIS EXPRESSLY IN LIEU OF ANY

OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTYOF

MERCHANT ABILITY AND THE WARRANTYOF FITNESS FOR A PARTICULAR PURPOSE.

6

USER SAFETY INFORMATION

WARNING:

Caution:

Means there is the possibility of personal

injury to you or others.

Means there is the possibility of damage to

the equipment.

Electrostatic Caution

Means that there is the possibility of

damage due to electrostatic discharge and

appropriate precautions should be taken.

Note: Provides information to further assist in the use of the device.

Federal law restricts this device for sale to or on the order of a physician.

WARNING(S)

•

Device (electrocardiograph, Class I) captures and presents data reflecting a patient’s physiological condition that when

reviewed by a trained physician or clinician can be useful in determining a diagnosis. However, the data should not be

used as a sole means for determining a patient’s diagnosis.

•

To ensure that electrical safety is maintained during operation from AC(~) power, the device must be plugged

into a Hospital Grade outlet.

•

To maintain designed operator and patient safety, peripheral equipment and accessories used that can come in direct

patient contact, must be in compliance with UL2601-1, IEC 601-1 and IEC 601-2-25.

•

Patient cables intended for use with the ELI 250/210 include series resistance (10 Kohm minimum) in each lead

for defibrillation protection. Patient cables should be checked for cracks or breakage prior to use.

•

Conductive parts of the patient cable, electrodes and associated connections of Type CF applied parts, including the

neutral conductor of the patient cable and electrode should not come into contact with other conductive parts,

including earth ground.

•

To maintain designed operator and patient safety, only use parts and accessories supplied with the device and

available through Welch Allyn, Inc.

•

ECG electrodes could cause skin irritation and should be examined for signs of irritation or inflammation.

•

To prevent possible infection, single use components (e.g., electrodes) should be limited to one-time use only.

•

To avoid the possibility of serious injury or death during patient defibrillation, do not come into contact with device

or patient cables. Additionally, proper placement of defibrillator paddles in relation to the electrodes is required to

minimize harm to the patient.

•

To ensure the safety of both the patient and the device, 1.5 meters (5 feet) of open area should surround the patient.

•

A possible explosion hazard exists; do not use the device in the presence of flammable anesthetics.

User Safety Information

7

•

Before attempting to use the device for clinical applications the operator must read and understand the contents

of the manual and any documents accompanying the device.

•

Where the integrity of external protective earth conductor arrangement is in doubt, the ELI 250/210 shall be operated

from its internal electrical power source.

•

All signal input and output(I/O) connectors are intended for connection of only devices complying with IEC 60601-1,

or other IEC standards (e.g. IEC 60950), as appropriate to the device. Connecting additional devices to the ELI

250/210 may increase chassis and/or patient leakage currents. To maintain operator and patient safety, consideration

should be given to the requirements of IEC 60601-1-1, and leakage currents should be measured to confirm no electric

shock hazard exists.

•

The ELI 250/210 has not been designed for use with high-frequency (HF) surgical equipment and does not

provide a protective means against hazards to the patient.

•

The quality of the signal produced by the electrocardiograph may be adversely affected by the use of other

medical equipment, including but not limited to defibrillators and ultrasound machines.

•

The ELI 250/210 uses a lead-acid gel cell battery. Disposal of this battery must be in compliance with

governmental regulations.

•

This unit can operate using AC power. Caution should be taken when working on this unit to limit the exposure to

high voltages. The unit should not be connected to AC power and the battery fuse should be removed when

replacing any assembly of this unit.

User Safety Information

8

Caution(s)

•

To prevent possible damage to the keypad, do not use sharp or hard objects to depress keys, only use fingertips.

•

Do not attempt to clean the device or patient cables by submersing into a liquid, autoclaving, or steam cleaning. Wipe

the exterior surfaces with a warm water and mild detergent solution and then dry with a clean cloth.

•

No user serviceable parts inside. Screw removal by qualified service personnel only.

•

The rechargeable internal battery is a sealed lead acid type and it is totally maintenance free. If the battery appears

to become defective, refer to Welch Allyn Service Department.

•

Do not pull or stretch patient cables as this could result in mechanical and/or electrical failures. Patient cables

should be stored after forming them into a loose loop.

Electrostatic Caution

Notes

•

Excessive patient movement could interfere with the operation of the device.

•

Proper patient preparation is important to proper application of ECG electrodes and operation of the device.

•

There is no known safety hazard if other equipment, such as pacemakers or other stimulators, are used simultaneously

with the ELI 250/210; however, disturbance to the signal may occur.

•

If the ECG amplifier input is out of normal operating range, the display will indicate a lead fail for the lead(s) where

this condition is present and if the signal is being printed, the respective lead(s) will print out as a square wave.

User Safety Information

9

•

As defined by IEC 60601-1 and IEC 60601-2-25, the device is classified as follows:

•

Class I equipment or internally powered

•

Type CF applied parts

•

Ordinary equipment

•

Not suitable for use in the presence of flammable anesthetics

•

Continuous operation

NOTE: From a safety perspective, per IEC 60601-1 and derivative standards / norms, this unit is declared to be

“Class I” and uses a three-prong inlet to ensure an earth connection is made along with mains. The ground

terminal on the mains inlet is the only protective earth point in the unit. Exposed metal accessible during normal

operation is double insulated from mains. Internal connections to earth ground are functional earth.

•

The ELI 250/210 will automatically turnoff (blank screen) if the batteries have been severely discharged.

•

After operating the ELI 250/210 using battery power, always reconnect the power cord. This ensures that the batteries

will be automatically recharged for the next time you use the ELI 250/210. A light will illuminate, next to the on/off

switch, indicating that the unit is charging.

•

The ELI 250/210 is a UL Classified Device:

WITH RESPECT TO ELECTRIC SHOCK,

FIRE AND MECHANICAL HAZARDS ONLY IN ACCORDANCE WITH

IEC 60601-1, CAN/CSA C22.2 No. 60601-1, AND

IEC 60601-2-25

10

EQUIPMENT SYMBOLS AND MARKINGS

Symbol Delineation

CAUTION The caution statements in this manual identify conditions or

practices that could result in damage to the equipment or other property, or

loss of data.

WARNING The warning statements in this manual identify conditions or

practices that could lead to illness, injury, or death. In addition, when used on

a patient applied part, this symbol indicates defibrillation protection is in the

cables. Warning symbols will appear with a grey background in a black and

white document.

Electrostatic sensitive devices

Do not dispose as unsorted municipal waste. Requires separate handling

for waste disposal according to local requirements.

Indicates compliance to applicable European Union directives

Follow instructions/directions for use (DFU) – mandatory action. A copy of the

DFU is available on this website. A printed copy of the DFU can be ordered

from Welch Allyn for delivery within 7 calendar days.

Medical Device

Reorder Number

11

GENERAL CARE

Service Manual Purpose

The purpose of this manual is to supply information to service personnel so they can maintain the ELI 250/210

Interpretive and Non-Interpretive Electrocardiograph at the assembly and subassembly level. Although the manual

includes parts lists, mechanical assembly parts, and printed circuit board information, it is intended to function

primarily as a guide to preventative and corrective maintenance and electrical repairs considered field repairable.

Periodic Safety Inspections

Follow the recommended maintenance schedule. Inspect the power cord and transmission cables

periodically for fraying or other damage and replace as needed. Broken or frayed wires may cause

interference or loss of signal. Pay particular attention to points where wires enter connectors.

Proper Power Cord

Use only the power cord specified for the equipment. This product requires a three-wire, (18 gauge, SJT-

grade) power cord, which is supplied with a three-terminal, polarized plug (hospital grade) for connection

to the power source and protective ground. Use only a power outlet with a protective ground outlet. An

interruption of the grounding connection could cause an electrical shock hazard.

Proper Fuse

Use only the fuse specified for the equipment (identical in type, voltage and current rating). Substituting a

different fuse type could cause a fire hazard. Always make sure fuses have been installed before operating

the unit.

Do Not Operate in Explosive Atmospheres

Do not operate the ELI 250/210 in the presence of flammable gasses or anesthetics; this environment could

cause an explosion. Refer to Operator's Manual Safety Information: Warning(s) and Caution(s).

Use Only Safe Methods of Interconnection

To prevent electrical shock from the product when it is connected to other electrical equipment, proper

grounding is essential. Refer to Operator's Manual Safety Information: Warning(s) Peripheral equipment.

Do Not Mount Product above Patient

Do not mount or place the product where it could fall on a patient or where it could be accidentally

knocked off a shelf or other mounting arrangement.

Recommended Accessories

For the patient's safety and optimum equipment performance, use only the accessories specified by Welch

Allyn, Inc.

General Care

12

Sterilizing this Product

Do not sterilize this product or any accessories unless specifically directed by the manufacturer. Sterilization and

sterilization environments can seriously damage many components and accessories.

Liquid Spills

Do not set beverages or other liquids on or near the ELI 250/210, and/or optional equipment.

Disposal

This product and its accessories must be disposed of according to local laws and regulations. Do not dispose of this product as

unsorted municipal waste. For more specific disposal information see www.welchallyn.com/weee.

13

MAINTENANCE AND CLEANING

Introduction

This section provides servicing and maintenance instructions for the ELI 250/210 interpretive electrocardiograph.

Subsequent parts of this section are disassembly, inspection techniques, cleaning techniques, and installation.

Recommended Cleaning Supplies

•

Anti-static mat & wrist band, properly grounded

•

Clean, lint-free cloth

•

Cleaning solvent (isopropyl alcohol, 99% pure)

•

DRY, low pressure, compressed air (30 psi)

•

Electronic safe non-residue solvent, such as Flux-off

•

Masking tape

•

Non-metallic, soft-bristle brush

•

Naphtha

•

Vacuum cleaner, Static Safe

Equipment Required

•

Screwdriver Philips #2.

•

Allen Wrench 0.05 inch or a 1.25 mm

•

Vibra-Tite or similar product to prevent screws from vibrating loose.

•

Digital Multi Meter (DMM)

Note: The equipment and solvent mentioned above are standard shop commodities that are available

from commercial sources. If in the performance of normal maintenance or repair, the PCB assembly,

AC connector assembly, or writer assemblies are removed or replaced, a leakage test should be

performed. See section on testing.

CAUTION:

Remove battery fuse before attempting any disassembly.

Removal of the battery fuse will not cause a loss of ECGs or of the configuration. This

information is stored in FLASH memory.

Maintenance and Cleaning

14

Cleaning and Inspecting Techniques

This section contains instructions for periodic cleaning and inspection of the instrument as preventative maintenance

measures. It also contains specific cleaning procedures to be conducted after disassembly. Parts having identical

cleaning procedures are grouped under common headings. No special tools are required.

Interior Cleaning

Magnetic Cleaning

Clean transformers and inductors with a dry, non-metallic, soft bristle brush.

Printed Circuit Board Cleaning

The printed circuit board assemblies in the ELI 250/210 system contain static sensitive devices. Use special

handling procedures to prevent damage due to ESD.

Clean assembled parts with a vacuum cleaner or low pressure compressed air (30 psi). Take care when cleaning

printed circuit boards that wires or component leads are not bent back and forth in such a manner as to weaken

them and cause them to eventually break.

Dry with low pressure compressed air.

WARNING

Ventilate work area thoroughly when using solvents. Observe manufacturers warnings on

solvent containers with regard to personnel safety and emergency first aid. Be sure that first

aid equipment is available before using chemicals. Observe all shop safety and fire

p

recautions.

CAUTION

Do not use solvents to clean transformers or inductors. The chemical action of solvents

may remove the varnish from the wire coils, rendering the components useless. The solvent

also neutralizes the adhesive of the cover tape, resulting in eventual tape separation

from the windings.

Maintenance and Cleaning

15

Metallic and Plastic Parts Cleaning

Brush all surfaces and parts with a nonmetallic, soft bristle brush.

Wipe metal surfaces with soft, nonabrasive cloth dampened with isopropyl

alcohol. Dry surfaces with clean cloth.

Wipe surfaces of nameplates and labels with dry cloth.

Exterior Cleaning

Use a damp cloth to clean external covers and the line cord. Do not use alcohol, solvents, or cleaning

solutions. These cleaning agents may damage the surfaces of the instrument.

Printhead Cleaning

Open the writer cover as explained in the section on final assembly.

Apply isopropyl alcohol to a clean cloth and wipe the writer printhead until all foreign matter is

removed. Dry the printhead thoroughly before use. Use a dry clean cloth for this.

After cleaning is completed, inspect the unit using the techniques described previously.

After the inspection is complete, install the cover as explained in the section on final assembly.

Inspection of Writer Assembly Harness

Visually inspect the wire harnesses for wear, maintenance damage, corrosion, deterioration, and damage resulting

from dropping.

If no defects are found, install the cover and restore the unit to service.

If a defect is found in the cables, replace the damaged cable with a new cable.

CAUTION

Do not wipe over surfaces of nameplates or labels with abrasive cleaners or

materials, as this will eventually wear away the nameplate information. Do not use

solvents to clean plastic parts.

Maintenance and Cleaning

16

Exterior Inspection

Visually inspect the entire instrument for wear, maintenance damage, corrosion, deterioration, and damage

resulting from dropping.

Interior Visual Inspection

Check all connectors for loose, bent or corroded contact points Check

wire, harnesses and cables for signs of wear or deterioration.

Inspect components and their leads for security of mounting, deterioration or leakage.

Check terminals and connections for proper installation, failed soldering, loss or wear.

Inspect PCB surfaces for charring, cracking or brittleness.

Note: Some degree of discoloration of the PCB surface maybe expected due to continued exposure to

the operating temperatures of some of the components.

Check the identification nameplate and other decals for legibility.

Inspect chassis, covers, and brackets for warping, bending, surface damage or missing captive hardware.

Check all screws and nuts for tightness or signs of stripped or crossed threads.

Check for any other form of mechanical damage, which may indicate a failure.

If, during the process of normal maintenance or repair, the PCB assembly, AC connector assembly, or writer

assembly are removed and replaced, perform the leakage test as described in the section on Testing and

Troubleshooting.

Preventative Maintenance Schedule:

Maintenance to be Performed Period Notes

Clean and inspect unit.

Printhead cleaning

Leakage tests.

6 mo.

80

hrs.

-

Perform every 3 mo. if unit is in heavy use.

Monthly cleaning recommended

As required by facility or regulatory requirements.

Table 1

17

SYSTEM SETTINGS

Chapter Purpose

This chapter is intended to provide the user with:

•

Instructions to access configuration menus

•

Summary of configuration options

•

Detailed descriptions of configuration settings

Access Configuration Menus

Four configuration pages define all ELI 250 operational conditions that do not change on a daily or patient-to-

patient basis. Once you set these default conditions, you will rarely need to use the configuration screens again. When

you apply power to the ELI 250, it will operate according to the settings you have selected. To access the

configuration menus:

 Select More (F6) from the Real-Time ECG View.

System Settings

18

Select Set Time/Date (number 3) from the application menu

 From the Set Time/Date screen, simultaneously press  (SHIFT) + ALT + C. The first

configuration screen will appear. Notice the page indicator in the upper right hand corner

on each screen.

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Hill-Rom ELI 250c Resting Electrocardiograph User manual

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