Datex-Ohmeda Engstrom Carestation Product manual

Engström Carestation
Technical Reference Manual

Engström Carestation
08/07 1505-1018-000
Datex-Ohmeda products have unit serial numbers with coded logic which indicates a product
group code, the year of manufacture, and a sequential unit number for identification. The serial
number can be in one of two formats.
Engström Carestation, ComWheel, D-fend ,,
,, SS SSpp ppii iirr rroo ooDD DDyy yynn nnaa aamm mmii iicc ccss ss,, ,, II IInn nnvv vvii iiee eeww ww
and EVair 03 are registered
trademarks of Datex-Ohmeda Inc.
Other brand names or product names used in this manual are trademarks or registered
trademarks of their respective holders.
AAA X 11111 AAA XX 111111AA
The X represents an alpha character
indicating the year the product was
manufactured; H = 2004, J = 2005, etc.
II
II
and O are not used.
The XX represents a number indicating
the year the product was manufactured;
04 = 2004, 05 = 2005, etc.

Technical Reference Manual
1505-1018-000 08/07 i
This document is not to be reproduced in any manner, nor are the contents to be disclosed to
anyone, without the express authorization of the product service department, Datex-Ohmeda,
Ohmeda Drive, PO Box 7550, Madison, Wisconsin, 53707.
©2007 Datex-Ohmeda Inc.
Engström Carestation

Engström Carestation
ii 08/07 1505-1018-000
Important
The information contained in this Technical Reference manual pertains only to those models of
products which are marketed by Datex-Ohmeda as of the effective date of this manual or the
latest revision thereof. This Technical Reference manual was prepared for exclusive use by
Datex-Ohmeda service personnel in light of their training and experience as well as the
availability to them of parts, proper tools and test equipment. Consequently, Datex-Ohmeda
provides this Technical Reference manual to its customers purely as a business convenience
and for the customer's general information only without warranty of the results with respect to
any application of such information. Furthermore, because of the wide variety of circumstances
under which maintenance and repair activities may be performed and the unique nature of each
individual's own experience, capacity, and qualifications, the fact that customer has received
such information from Datex-Ohmeda does not imply in anyway that Datex-Ohmeda deems said
individual to be qualified to perform any such maintenance or repair service. Moreover, it should
not be assumed that every acceptable test and safety procedure or method, precaution, tool,
equipment or device is referred to within, or that abnormal or unusual circumstances, may not
warrant or suggest different or additional procedures or requirements.
This manual is subject to periodic review, update and revision. Customers are cautioned to
obtain and consult the latest revision before undertaking any service of the equipment.
Comments and suggestions on this manual are invited from our customers. Send your
comments and suggestions to the Manager of Technical Communications, Datex-Ohmeda,
Ohmeda Drive, PO Box 7550, Madison, Wisconsin 53707.
ww
ww
CAUTION Servicing of this product in accordance with this Technical Reference manual should never
be undertaken in the absence of proper tools, test equipment and the most recent
revision to this service manual which is clearly and thoroughly understood.
Technical Competence
The procedures described in this Technical Reference manual should be performed by trained
and authorized personnel only. Maintenance should only be undertaken by competent
individuals who have a general knowledge of and experience with devices of this nature. No
repairs should ever be undertaken or attempted by anyone not having such qualifications.
Datex-Ohmeda strongly recommends using only genuine replacement parts, manufactured or
sold by Datex-Ohmeda for all repair parts replacements.
Read completely through each step in every procedure before starting the procedure; any
exceptions may result in a failure to properly and safely complete the attempted procedure.

1505-1018-000 08/07 iii
Table of Contents
Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii
Technical Competence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii
Table of Contents
1 Introduction
1.1 What this manual includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2 User’s Reference manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.3 Conventions used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.4 What is an Engström Carestation? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.5 Ventilator overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.6 Display controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
1.7 Ventilator display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
1.7.1 Using menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.8 Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Engström Carestation
iv 08/07 1505-1018-000
2 Theory of Operation
2.1 Pneumatic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.1.1 Primary Gas Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.1.2 Expiratory circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
2.1.3 Associated circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2.1.4 Electronic micropump nebulizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2.2 Electrical Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2.2.1 Display Unit overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2.2.2 Software requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.2.3 DU system connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2.3 System Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.3.1 Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.3.2 High Performance Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.3.3 Communication channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
2.3.4 Ventilator Control Board - VCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2.3.5 Ventilator Monitoring Board - VMB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2.3.6 Power Management Board – PMB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
2.3.7 Other Electronic Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
2.3.8 Motherboard (backplane) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
2.3.9 Monitoring Interface Board – Monitoring Module Bays . . . . . . . . . . . . . . . . . . . . 2-25
3 Checkout Procedure
3.1 Inspect the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.2 Automated Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.3 Backlight test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.4 Power failure test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.5 Electrical safety tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Table of Contents
1505-1018-000 08/07 v
4 Installation and Service Menus
4.1 Service and Installation menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
4.2 Install/Service Menu (Super User) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.2.1 Trends Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
4.2.2 Display Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
4.2.3 Ventilator Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
4.2.4 Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
4.2.5 Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
4.2.6 Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.3 Calibration menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
4.4 Service menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4.4.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.4.2 Options Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.4.3 Options List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.4.4 Options Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.4.5 Copy Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
4.4.6 Service Log menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
4.4.7 Software/Hardware version menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
4.4.8 Resetting feature option key codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
5 Service Tests and Calibration
5.1 Calibration (super-user) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.1.1 Calibration procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
5.2 Service level tests and calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.2.1 Service application setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.2.2 Test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.2.3 Vent engine debris clean-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
5.2.4 Regulator output pressure test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5.2.5 Vent engine leak test (low pressure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
5.2.6 Vent engine leak test (high O
2
pressure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
5.2.7 Vent engine leak test (high Air pressure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.2.8 Calibrate airway pressure transducer Zero and Span . . . . . . . . . . . . . . . . . . . . . 5-16
5.2.9 Verify operation of free-breathing valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
5.2.10 Verify operation of inspiratory effort valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.2.11 Verify operation of auxiliary pressure relief valve . . . . . . . . . . . . . . . . . . . . . . . . 5-22
5.2.12 Mechanical over-pressure valve test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

Engström Carestation
vi 08/07 1505-1018-000
6 Installation and Maintenance
6.1 Engström Carestation Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
6.2 Engström Carestation Planned Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
6.2.1 Every twelve (12) months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
6.2.2 Every forty-eight (48) months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
6.2.3 Every sixty (60) months. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6.3 JunAir EVair03 Compressor Maintenance (Model OF302-1.5DSA) . . . . . . . . . . . . . . . . . .6-5
6.3.1 Every twelve (12) months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
6.3.2 Every 10, 000 hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
6.4 Cleaning and sterilizing agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
6.5 Battery capacity test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
7 Troubleshooting
7.1 Troubleshooting Checkout Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
7.1.1 Paw transducer check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
7.1.2 Barometric pressure test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
7.1.3 Low pressure leak and compliance check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
7.1.4 Safety valve relief and back pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
7.1.5 Exhalation valve calibration check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
7.1.6 Exhalation flow sensor calibration test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
7.1.7 Measure breathing circuit resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
7.1.8 Air inspiratory flow sensor calibration check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
7.1.9 O
2
inspiratory flow sensor calibration check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
7.1.10 O
2
sensor test and calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
7.1.11 Neonatal flow sensor calibration check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
7.2 Troubleshooting Vent Engine Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
7.2.1 Vent engine leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
7.2.2 Auxiliary and expiratory pressure circuit leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
7.3 Troubleshooting Startup Screen (POST) messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
7.4 Troubleshooting Startup Screen (POST) messages - for HPDU . . . . . . . . . . . . . . . . . . . . 7-15
7.5 Troubleshooting the Display - HPDU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
7.6 Alarm message troubleshooting chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
7.7 Troubleshooting Service App messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-39

Engström Carestation
1505-1018-000 08/07 vii
8 Service Diagnostics and Software Download
8.1 EC Service Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
8.1.1 Main menu and system information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
8.1.2 Power diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
8.1.3 Power controller power diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
8.1.4 Display Unit Power Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
8.2 Display Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-7
8.3 Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-8
8.3.1 View revision log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
8.3.2 View PC Card install log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
8.4 Software Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
8.5 EC Service Application (PC based) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
8.5.1 Port setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
8.5.2 Main menu and system information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
8.6 VCB Diagnostics and Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
8.6.1 Sensirion sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
8.6.2 VCB input signal latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
8.6.3 VCB channel configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
8.6.4 VCB outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
8.6.5 Calibrations and tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
8.6.6 Neon tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
8.6.7 Peep stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
8.6.8 Logging checkout results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
8.6.9 Logging Calibration Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
8.7 VMB Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
8.7.1 VMB Channel Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
8.7.2 VMB outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
8.7.3 VMB data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
8.7.4 Baro P cal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
8.7.5 Acutronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
8.7.6 EEProm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25

Engström Carestation
viii 08/07 1505-1018-000
9 Repair Procedures
9.1 Circuit Board Replacement precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
9.1.1 Software download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
9.1.2 Required calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
9.2 How to bleed gas pressure from the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.3 Accessing chassis components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.3.1 To remove the chassis from the housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5
9.3.2 To remove the Vent Engine from the chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-5
9.3.3 To replace chassis mounted components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.3.4 To replace vent engine components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
9.3.5 To replace inspiratory valve assembly (1505-8502-000) . . . . . . . . . . . . . . . . . . .9-9
9.3.6 To replace free breathing valve (0211-1454-100) . . . . . . . . . . . . . . . . . . . . . . . 9-10
9.3.7 To replace Vent Engine assembly, complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
9.3.8 To replace Vent Engine, sub-assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
9.4 Servicing the Display Unit (DU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
9.4.1 Remove the Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
9.4.2 Disassemble the Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.4.3 To replace the CPU board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
9.4.4 To replace the LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15
9.4.5 To replace the backlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
9.4.6 To replace the Inverters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-17
9.4.7 To replace the front enclosure or components . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-18
9.5 Servicing the High Performance Display Unit (HPDU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20
9.5.1 Remove the Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20
9.5.2 Disassemble the Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
9.5.3 CPU Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
9.5.4 To replace the CPU board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-22
9.5.5 To replace the LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23
9.5.6 To replace the backlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25
9.5.7 To replace the Inverters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
9.5.8 To replace the front enclosure or components . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-27
9.6 Adjusting the display arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-29
9.6.1 Adjust upper pivot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-29
9.6.2 Adjust lower pivot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-30
9.6.3 Adjust arm bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-30
9.7 Removing a compressor from the cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-31
9.8 Attaching Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-32
9.8.1 Key/BID label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-32
9.8.2 Feature label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-32

Table of Contents
1505-1018-000 08/07 ix
10 Illustrated Parts
10.1 Service tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
10.1.1 Software tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
10.1.2 Manual shut-off valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
10.1.3 Special tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
10.1.4 Leak test devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
10.1.5 Lubricants and Adhesives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
10.2 Exhalation valve assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
10.3 Neonatal Flow Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7
10.4 External components - front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
10.5 External components - rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
10.6 Display arm mounting hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10
10.7 Display arm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12
10.8 High Performance Display Unit (HPDU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14
10.9 Display Unit (DU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16
10.10 Main enclosure (external) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18
10.11 Main enclosure (internal) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20
10.12 Vent Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22
10.13 Outlet manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24
10.14 Inlet manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-26
10.15 AC power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-28
10.16 AC Inlet/Outlet Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30
10.17 Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-32
10.18 Module rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-34
10.19 Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-35
10.20 Feature Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-36
10.21 Key/BID label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-37
11 Schematics and Diagrams
Appendix A 1

Engström Carestation
x 08/07 1505-1018-000

1505-1018-000 08/07 1-1
1 Introduction
In this section This section provides a general overview of the Engström Ventilator.
1.1 What this manual includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2 User’s Reference manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.3 Conventions used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.4 What is an Engström Carestation? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.5 Ventilator overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.6 Display controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
1.7 Ventilator display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
1.7.1 Using menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1.8 Symbols used in the manual or on the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Engström Carestation
1-2 08/07 1505-1018-000
1.1 What this manual includes
This manual covers the service information for the Engström Carestation.
It covers the following components:
• Display Unit (DU/HPDU)
• Integral electronics
• Gas delivery components
• Frame component
Other equipment Other equipment may be attached to the system. Consult separate
documentation relative to these items for details.
1.2 User’s Reference manuals
Some sections of this manual refer you to the User’s Reference manual for the
Engström Carestation. To expedite repairs, you must have, and be familiar
with, the User’s Reference manual for this product.
Refer to the Engström Carestation User’s Reference manual if you need further
information about the operation of the system.
1.3 Conventions used
Hard keys Names of the hard keys on the display and modules are written in bold
typeface; for example, Normal Screen .
Menu selections Menu selections are written in bold italic typeface; for example, Patient
Setup
.
Messages Messages that are displayed on the screen are enclosed in single quotes; for
example, ‘Check sample gas out.’
Sections and headings When referring to different sections or headings in the User’s Technical
Reference manual, the name is written in italic typeface and is enclosed in
double quotes; for example,
“System Controls and Menus.”

1 Introduction
1505-1018-000 08/07 1-3
1.4 What is an Engström Carestation?
The Engström Carestation (EC) is a critical care ventilator that is flexible and
physically adaptable to a variety of work environments. It has an intuitive user
interface that is common to many Datex-Ohmeda products. A wide selection
of performance options gives the user full control of the system configuration.
The Engström Carestation is a complete system featuring patient monitoring,
patient ventilation, and the capability of interfacing with central monitoring.
Note Photos and drawings shown in this manual may not be identical to all variants
of the product. Some photos and drawings show accessories and options that
may not be present or available on all variants. This manual does not cover
the operation of every accessory; refer to the accessory documentation for
further information.
The EC must only be operated by authorized medical personnel well trained in
the use of this product, for patient ventilation in the intensive care
environment. It must be operated according to the instructions in the User’s
Reference manual. The ventilator is designed to be used with infant through
adult patients with a body weight of 5 kg or greater. If the neonatal option is
installed on the ventilator, patients weighing down to 0.5 kg may be ventilated
by the EC. The EC is designed to maintain lung ventilation in the absence of
spontaneous breathing effort as well as in support of the patient’s existing
spontaneous breathing effort.
Figure 1-1 • Engström Carestation (EC)

Engström Carestation
1-4 08/07 1505-1018-000
The system is designed for facility use, including within-facility transport, and
should only be used under the orders of a clinician. It is designed to be
operated on medical-grade gases only and should never be connected to
gasses that do not meet the medical-grade requirements listed in Appendix A.
The Engström Carestation consists of three main components: a display, a
ventilator unit, and an optional module bay. The display allows the user to
interface with the system and control settings. The ventilator unit controls
electrical power, nebulization, and pneumatic gas flow to and from the
patient. The module bay allows the integration of various patient monitoring
modules with the ventilator.
Optional accessories include an air compressor, airway modules, module bay,
support arm, humidifier and water trap mounting brackets, auxiliary electrical
outlets, and a neonatal flow sensor.

1 Introduction
1505-1018-000 08/07 1-5
1.5 Ventilator overview
Figure 1-2 • Front view of the EC
1. Module bay (optional) 10. Expiratory inlet
2. Ventilator lock [locks Ventilator unit (item 6) to Cart (item 3)] 11. Expiratory flow sensor
3. Cart 12. Gas exhaust port
4. Caster 13. Leak test plug
5. Dovetail rails 14. Exhalation valve housing latch
6. Ventilator unit 15. Water trap
7. Display 16. Auxiliary pressure port
8. Nebulizer connection 17. Inspiratory outlet
9. Exhalation valve housing
1
2
3
4
5
6
AB.98.011
8 9 10 11
13
1415
12
1617
7
AB.98.127

Engström Carestation
1-6 08/07 1505-1018-000
1. Display fan filter
2. Display connection
3. Module bay connection
4. AC mains inlet
5. System switch
6. Equipotential connector
7. Oxygen supply connection (pipeline)
8. Air supply connection (pipeline or compressor)
9. Module bay mounting thumbscrews
10. Ventilator unit fan filter
11. Serial communication port (Nurse call - Port 4)
12. Arm holder
13. Port 1 (Neonatal Flow Sensor)
14. Port 2 (Not currently supported)
15. Port 3 (Used to communicate with PC based Service Application — Refer to Section 8.5)
16. Communication port (Refer to Section 2.3)
17. Communication port (Refer to Section 2.3)
18. Communication port (Refer to Section 2.3)
19. Communication port (Refer to Section 2.3)
Figure 1-3 • Back view of the E V
2
3
4
5
6
8
10
11
3
AB.98.155
9
7
1
12
13
14
15
18
1617
2
AB.98.154
19

1 Introduction
1505-1018-000 08/07 1-7
1.6 Display controls and indicators
Figure 1-4 • Controls and indicators
2
4
35
3
3
7
1
6
8
AB.98.139
1 Alarm LEDs The red and yellow LEDs indicate the priority of active alarms.
2 Silence Alarm key Push to silence any active, silenceable high and medium priority alarms or
to suspend any non-active high or medium priority alarms. Alarm audio is
silenced or suspended for 120 seconds for Adult and Pediatric patient
types, and for 30 seconds for Neonatal patient types. Push to clear resolved
alarms.
3 Menu keys Push to show corresponding menu.
4 ComWheel Push to select a menu item or confirm a setting. Turn clockwise or
counterclockwise to scroll menu items or change settings.
5 Normal Screen key Push to remove all menus from the screen.
6 AC mains indicator The green LED lights continuously when the EC is connected to an AC mains
source. The internal batteries are charging when the LED is lit.
7 Quick keys Push to change corresponding ventilator setting. Turn the ComWheel to
make a change. Push the Quick key or ComWheel to activate the change.
8
! O2 key Push to deliver 100% O
2
(Adult or Ped) or 25% above current setting (Neo)
for 2 minutes.

Engström Carestation
1-8 08/07 1505-1018-000
1.7 Ventilator display
Figure 1-5 • Normal Screen view
1 2 34
7
8
9
5
•
6
AB.98.013
1 Alarm silence symbol
and countdown
Displays the time remaining during an alarm silence or alarm suspend period.
2 Alarm message fields Alarms will appear in order of priority. Refer to “Alarms and Troubleshooting” for more information
on alarm behavior.
3 Waveform fields The top two waveforms are permanently set to Paw and Flow. The third waveform may be selected
as CO
2
, O
2
, Vol, Paux, or Off.
4 General message field Displays informational messages.
5 Clock The time may be set in 12 or 24 hour format in the Time and Date menu.
6 Patient type icon Displays Neonatal, Pediatric, or Adult patient type mode.
7 Measured value fields Displays current measured values corresponding to the waveforms.
8 Digit field Displays information related to Volume, CO
2
, O
2
, Compliance, Metabolics, Spirometry, or Volume
per weight.
9 Ventilator settings Displays several of the settings for the current mode of ventilation.