RGB Omicrom FT User manual

Portable Vital Signs Monitor
Omicrom FT
Service Manual
RGB Medical Devices, S.A.
C/ Alfonso Gómez, 42 - 28037 MADRID (SPAIN)
Cat. I101-7305 - Rev. 21 September 1998

SALES AND SERVICE
SPAIN: RGB Medical Devices, S.A.
c/ Alfonso Gomez, 42
28037 MADRID
SPAIN
Phone No ++ 34 91 304 20 11
Fax No ++ 34 91 327 39 03
YOUR LOCAL
CONTACT
FOR SALES AND
SERVICE OF
RGB MEDICAL DEVICES
PRODUCTS:
TO BE ENTERED BY LOCAL COMPANY OR AGENT
COPYRIGHT ©
RGB MEDICAL
DEVICES, S.A.
1998
All rights reserved. The information contained in this
publication may not be used for any purpose other than that for
which it was originally supplied. The publication may not be
reproduced in parts or in whole without the written consent of
RGB MEDICAL DEVICES.
In order to maintain and improve standards of manufacturing,
methods of functioning and to increase reliability, RGB
MEDICAL DEVICES equipments are periodically reviewed. For
this reason, the contents of this publication are subject to
change without notice.

OMICROM FT
SERVICE MANUAL
21 September 1998 i
LIST OF CONTENTS
LIST OF CONTENTS.............................................................................. i
1. INTRODUCTION............................................................................ 1.1
1.1. Quality, Reliability and Safety. ................................................................1.1
1.2. General Precautions.................................................................................1.2
2. SERVICE INFORMATION............................................................. 2.1
2.1. Monitor and accessories cleaning..........................................................2.1
2.2. Technical specifications..........................................................................2.2
2.2.1. Classification according IEC601. ................................................................................2.2
2.2.2. General Specifications................................................................................................2.2
2.2.3. Environmental Specifications. ....................................................................................2.3
2.2.4. Electrical Specifications..............................................................................................2.3
2.2.5. Electrocardiogram (ECG) Specifications.....................................................................2.3
2.2.6. Respiration specifications:..........................................................................................2.4
2.2.7. Non Invasive Arterial Pressure (NIBP) Specifications.................................................2.4
2.2.8. Invasive Arterial Pressure (PRES) Specifications.......................................................2.5
2.2.10. Pulse Oximetry (SpO2) Specifications.......................................................................2.5
2.2.11. Temperature (TEMP) Specifications.........................................................................2.6
2.2.12. Output Signals Specifications...................................................................................2.6
2.2.13. Materials Specifications............................................................................................2.6
2.2.14. Operating Specifications...........................................................................................2.7
2.3. Verification routines.................................................................................2.9
2.3.1. Daily verification routine.............................................................................................2.9
2.3.2. Periodical verification routine. ...................................................................................2.9
2.4. Alarm messages. ....................................................................................2.17
2.4.1. Initial self-test...........................................................................................................2.17
2.4.2. ECG messages. .......................................................................................................2.17
2.4.3. SpO2messages........................................................................................................2.18
2.4.4. NIBP messages........................................................................................................2.19
2.4.5. Invasive pressure messages.....................................................................................2.19
2.4.6. Respiration messages. .............................................................................................2.20
2.4.7. System messages. ...................................................................................................2.20
3. MONITOR INSTALLATION AND ADJUSTMENTS...................... 3.1
3.1. Unpacking .................................................................................................3.1
3.2. Monitor installation. .................................................................................3.2
3.3. Adjustments and option jumpers............................................................3.3
3.3.1. Supply board (P000PLAC05 Internal code).................................................................3.3
3.3.2. Base board (P000PLAC07 Internal Code)...................................................................3.4
3.3.3. Display board (P000PLAC14 Internal Code)...............................................................3.5
3.3.4. Main board (P000PLAC04 Internal Code)...................................................................3.6
3.3.5. Pulsioximeter board (P000PLAC19 Internal Code) .....................................................3.7
3.3.6. ECG and respiration board (P000PLAC20 Internal Code)...........................................3.8
3.3.7. NIBP and IBP board (P000PLAC01 Internal Code).....................................................3.9

OMICROM FT
SERVICE MANUAL
21 September 1998 ii
4. DISASSEMBLY AND REASSEMBLY .......................................... 4.1
4.1. Back Cover Removal................................................................................4.1
4.2. Battery .......................................................................................................4.2
4.3. Front cover................................................................................................4.2
4.4. Front Panel................................................................................................4.4
4.5. Measurement boards fastening. .............................................................4.6
4.6. NIBP Board (P000PLAC01 Internal Code) ..............................................4.8
4.7. Pump (C000BOMB01 Internal Code).......................................................4.9
4.8. AC/DC Board (C000ACDC01 Internal Code)...........................................4.9
4.9. Supply Board (P000PLAC05 Internal Code).........................................4.10
4.10. Connector Board (P000PLAC07 Internal Code).................................4.10
4.11. Power Line Filter ..................................................................................4.11
5. SCHEMATICS AND SPARE PARTS LIST.................................... 5.1
5.1. Programmable devices. ...........................................................................5.1
5.2. Spare parts list. ........................................................................................5.4
5.2.1. General spare parts list...............................................................................................5.4
5.2.2. P000PLAC01 Part list.................................................................................................5.6
5.2.3. P000PLAC04 Part list.................................................................................................5.9
5.2.4. P000PLAC05 Part list...............................................................................................5.11
5.2.5. P000PLAC07 Part list...............................................................................................5.13
5.2.6. P000PLAC10 Part list...............................................................................................5.15
5.2.7. P000PLAC14 Part list...............................................................................................5.18
5.2.8. P000PLAC15 Part list...............................................................................................5.20
5.2.9. P000PLAC19 Part list...............................................................................................5.21
5.2.10. P000PLAC20 Part list.............................................................................................5.24
5.3. Board schematics. .................................................................................5.27
5.3.1. P000PLAC01 Schematics.........................................................................................5.28
5.3.2. P000PLAC04 Schematics.........................................................................................5.34
5.3.3. P000PLAC05 Schematics.........................................................................................5.37
5.3.4. P000PLAC07 Schematics.........................................................................................5.39
5.3.5. P000PLAC10 Schematics.........................................................................................5.42
5.3.6. P000PLAC14 Schematics.........................................................................................5.47
5.3.7. P000PLAC15 Schematics.........................................................................................5.51
5.3.8. P000PLAC19 Schematics.........................................................................................5.53
5.3.9. P000PLAC20 Schematics.........................................................................................5.60

OMICROM FT
SERVICE MANUAL
21 September 1998 1.1
1. INTRODUCTION
This Service Manual has been prepared for the maintenance and service of any of
the various models of the Omicrom FT Portable Vital Signs Monitor.
The technical qualified personnel must read carefully and thoroughly this
manual before performing any disassembly or maintenance procedure
The family of Omicrom FT monitors have several models that monitors different
physiological signs. All models have a common base that contains a metallic
chassis, an external plastic enclosure and two common boards that provide power
supply and communications for the rest of boards. Each model includes different
measurement boards as a function of the measured parameters. An essential
documentation to use this Service Manual is the Operation Manual of the monitor,
that provides complementary information.
To make any question or comment send your request to:
RGB Medical Devices, S.A.
c/ Alfonso Gómez, 42
28037 MADRID (SPAIN)
Tel. ++ 34 91 304 20 11
Fax. ++ 34 91 327 39 03
1.1. Quality, Reliability and Safety.
This equipment has been designed with an special emphasis on those aspects
related with quality, reliability and safety, but RGB MEDICAL DEVICES will accept
responsability for these aspects when the following conditions are met:
a)Electrical installations in which the monitor is to be used must
comply with all regulations specified by the country in which the
monitor is being used.
b)The monitor is used in accordance with the instructions for use
provided by RGB MEDICAL DEVICES.
c)All maintenance, modification or repairment operations are
carried out by qualified personnel authorised by RGB MEDICAL
DEVICES.
d)Equipment installation must be carried out in accordance with
local requirements regarding responsibility and warranty.

OMICROM FT
SERVICE MANUAL
21 September 1998 1.2
1.2. General Precautions.
Read the following precautions thoroughly before performing any of the
disassembly procedures, because serious damage to the personnel or the
equipment can result if the precautions are not strictly followed.
All service operations must be carried out by qualified personnel. Besides, these
operations can only be performed by authorised personnel by RGB MEDICAL
DEVICES.
Before cleaning the equipment, always switch it off and disconnect it from the AC
power supply. Do not allow any liquid to enter the equipment case. Do not pour
liquid on the equipment while cleaning. Never use any abrasive material to make
the cleaning. Keep plugs and connectors meticulously clean and dry.
Do not expose the equipment to high humidity or heat.
Before starting with the disassembly procedure, the monitor must be turned off. It
is necessary to remove the power cable and all signal cables.
The front panel of the monitor is vulnerable to scratching, so a rough handling can
damage it.
When the monitor is reconnected and the power turned on without the plastic
covers, it is necessary to be careful in order to avoid exposure to high voltage. In
this case, do not power up the chassis on a conductive surface such as a bare
metal table. Place the chassis on a non-conductive material.
In order to avoid an electrostatic discharge, it is necessary to use adequate
protective means, such as antistatic surfaces and earthing means for technical
personnel. In case of handling spare parts sensitive to discharges, handle these
parts into their original package.
Normally, the measurement boards have a floating input section which is isolated
from the remainder of the board. Never handle this section of the board, because
the oil, dirt or dust deposited on these sections can cause leakage paths which
can degrade floating circuit isolation and patient safety.
During the disassembly procedure, be sure to keep all screws, nuts, plastic
spacers and other accessories for the posterior assembly of the monitor.

OMICROM FT
SERVICE MANUAL
21 September 1998 2.1
2. SERVICE INFORMATION
This chapter include several sections where different type of information for
servicing the Omicrom FT monitors is included.
2.1. Monitor and accessories cleaning.
The Omicrom FT monitor and accessories must be kept clean on a routine basis,
in accordance to the instructions provided here. To clean the monitor or their
accessories it is necessary to disconnect the monitor from the AC Power and the
different accessories from the monitor. After cleaning of the different parts of the
equipment , always allow them dry thoroughly before use.
The outside of the monitor may be wiped clean with a cloth slightly dampened with
mild detergent or normal hospital bactericides. Liquid must not be poured inside
the equipment. It must not be cleaned with isopropyl alcohol or other dissolvents.
Do not use abrasive agents. Avoid liquid entering inside the NIBP connector.
As a general rule, do not immerse the different cables and probes into water or
any other liquid. Besides, the continued flexing of cables and wires during the use
of the monitor or during the cleaning procedure could break the internal wires
and, as a consequence, produce the failure of the monitor.
A very important aspect that must be considered is the cleaning procedure of the
cuffs and hoses supplied with the unit. Care must be taken not to immerse these
elements in any kind of liquid to avoid that the liquid enters them at any time. If
this happens accidentally, then it may be dried by passing air through the cuff.
The cuff can be cleaned by hand washing in warm soapy water.
Both the ECG cable and the electrode leads may be cleaned and disinfected by
wiping with a 10% solution of household bleach or any other similar commercial
product. Do not use alcohol, since it will attack the protective plastic cover of the
cables causing them to undergo a premature erosion.
For the cleaning of sensors or cables, hold the sensor in one hand at the tip and
wipe the sensor and cable towards the plug end. If excessive pressure is used,
the covering will be stratched, which may break the internal wires and destroy the
probe.
Do not boil or autoclave the monitor, the sensor or the cables, because it can be
destroyed.

OMICROM FT
SERVICE MANUAL
21 September 1998 2.2
2.2. Technical specifications.
This section includes the technical specifications of Omicrom FT monitors.
General specifications are valid for all models of Omicrom FT monitors.
Specifications related to each vital sign are applicable according to the specific
model. In this case, it is mentioned the code of the board that monitors the vital
sign, because the specifications can vary according to the board used. The cross
reference of the boards used into each model of Omicrom FT is included in
Chapter 5 (“Schematics and spare parts list”).
2.2.1. Classification according IEC601.
Type of Protection: Class I, internally powered.
Mode of Operation:Continuous.
Degree of Mobility: Portable.
Degree of Protection against Electric Shock: Types BF and CF.
Note. This monitor can not be used in the presence of flammable anaesthetics
gases.
2.2.2. General Specifications.
External enclosure: ABS flame resistant.
Dimensions:232 length x 208 width x 242 height (mm).
Weight:4.8 kg.
Display:Electroluminescent display with very high contrast.
Viewing angle 160º.
Resolution 320 x 240 pixels.
Active area 120 x 90 mm
Keyboard: Power on/Power off key.
4 specific function keys.
5 soft keys.
Battery: Free maintenance lead acid battery 12 V - 2.1 Ah.
Size: 178 mm x 34 mm x 60 mm
Internal battery charger.
Maximum two hours of autonomy (it depends on model and
active parameters).
Safety Standards:
• IEC601-1 (1988). Medical electrical equipment. General
requirements for safety.
• IEC601-1-2 (1993). Medical electrical equipment. Part 1:
General requirements for safety. Section 2: Collateral
standard: Electromagnetic compatibility. Requirements and
tests.
• IEC601-2-27 (1994). Medical electrical equipment. Part 2:
Particular requirements for the safety of
electrocardiographic monitoring equipment.
• IEC601-2-30 (1995). Medical electrical equipment. Part 2:
Particular requirements for the safety of automatic cycling
indirect blood pressure monitoring.

OMICROM FT
SERVICE MANUAL
21 September 1998 2.3
• IEC601-2-34(1994. Medical electrical equipment. Part 2:
Particular requirements for the safety of direct blood
pressure monitoring equipment.
2.2.3. Environmental Specifications.
Storage temperature:20°C to 60°C
Operating temperature:0°C to 40°C
Relative humidity:5 % to 90%, non condensing
Altitude: -300 m to 4,500 m
2.2.4. Electrical Specifications.
AC input voltage:100-120 V~ / 200-240 V~
Input voltage frequency:50 / 60 Hz
AC input power:15 to 55 VA
AC fuses:250 V/1.6 A Type T.
Earth leakage current:< 100 µA
2.2.5. Electrocardiogram (ECG) Specifications.
Board P000PLAC20 - “ECG-R 280598 Rev. 03”
Patient Safety:Class I, type CF, protected against
defibrillator (according IEC601).
Heart Rate:Range: 20-300 beats per minute
Resolution: 1 beat per minute
Accuracy: ±2 %
Specific requirements:Input impedance: > 5 MΩat 10Hz
DC offset voltage range: ±0.6 V
System noise: < 30 µV
Signal Features:Bandwidth:
Diagnostic mode: 0.05 Hz to 100 Hz
Monitor mode: 0.5 Hz to 25 Hz
O.R. mode: 0.5 Hz to 25 Hz
Programmable gain:1 to 8 mV
Pacemaker detection and rejection:
Pulse duration: 0.1 to 2 ms
Pulse amplitude : ±2 to ±700 mV
Auxiliary Circuits:Calibration circuit.
Detection circuit of lead disconnection.
Detection circuit of cable disconnection.
Probe requirements:Three leads cable.
Available alarms:Internal failure.
Cable disconnection.
Lead disconnection.
Signal saturated.