perseus_a500_series_technical_documentation_rev_3-0.pdf
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Technical Documentation IPM
Perseus A500 and Perseus A500 ceiling
Anaesthesia workstation
Warning
All servicing and/or test procedures on the
device require detailed knowledge of this
documentation. Use of the device requires
detailed knowledge and observance of the
relevant Instructions for Use.
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Table of contents
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Table of contents
General
1 General notes ...........................................................................................................................
Abbreviations
1 Abbreviations and definitions....................................................................................................
Function descriptions
1 System overview ......................................................................................................................
2 Control panel (ECD) .................................................................................................................
3 Gas cylinder pressure regulators (option) ................................................................................
4 Mixer unit ..................................................................................................................................
5 Breathing system and interface ................................................................................................
6 Blower (M3.1) ...........................................................................................................................
7 Anaesthetic gas system (AGS).................................................................................................
8 Anaesthetic vaporizer (Vapor) ..................................................................................................
9 General points on the "Vapor View" .........................................................................................
10 Optional Vapor View (M605) ....................................................................................................
11 Fan ...........................................................................................................................................
12 Power supply unit(M7.3) ...........................................................................................................
13 Power failure backup battery ....................................................................................................
14 Main A500 PCB ........................................................................................................................
15 Therapy Control Unit PCB (M16.2)...........................................................................................
16 Blower A500 PCB .....................................................................................................................
17 M21 EAST PCB (M21, RFID unit) ............................................................................................
18 Ventilation Sensor PCB (M4.6).................................................................................................
19 PGM (M5x) ...............................................................................................................................
20 Auxiliary sockets without isolating transformer .........................................................................
21 Auxiliary sockets with 240 Volt isolating transformer (option)...................................................
22 Central brake ............................................................................................................................
23 Bronchial suction device...........................................................................................................
Maintenance instructions
1 General information on use of maintenance instructions .........................................................
2 Safety instructions ....................................................................................................................
3 Cut the power to the device before carrying out the procedure................................................
4 AGS filter (filter in anaesthetic gas mounting system) ..............................................................
5 Sampling gas return filter..........................................................................................................
6 Water trap mount; replacing the O-rings ..................................................................................
7 Filter mat on PGM fan ..............................................................................................................
8 Filter mat on power supply unit fan...........................................................................................
9 Cylinder pressure regulator, seal on cylinder connection .........................................................
10 Cylinder pressure regulator, sintered-metal filter on cylinder connection .................................
11 Cylinder pressure regulator, diaphragm unit ............................................................................
12 Cylinder pressure regulator, general overhaul .........................................................................
13 Replacing the lead-gel battery (2x)...........................................................................................
14 Integrated power supply unit P2500 of an IACS.......................................................................
15 Replacing the fuse and the batteries ........................................................................................
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Annex
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General
This chapter contains general notes and definitions that are important for the
use of this documentation.
General notes ...........................................................................................................................
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General
General notes
1
General notes
1.1
Notes on use
Read through the following notes thoroughly before applying this
documentation.
Dräger reserves the right to make changes to the device and/or to this
documentation without prior notice. This documentation is intended solely as
an information resource for maintenance personnel or technical specialists.
1.2
Copyright and other protected rights
The content of this documentation, in particular its design, text, software,
technical drawings, configurations, graphics, images, data and their selection
and its composition and any amendments to it (content) are protected by
copyright. The content must not (in whole or in part) be modified, copied,
distributed, reproduced, republished, displayed, transmitted or sold without
the prior written consent of Dräger.
1.3
Definitions
WARNING
An important advisory indicating a potentially hazardous situation
which may result in death or serious injury if not prevented.
CAUTION
An important advisory indicating a potentially hazardous situation which may
result in minor or moderate injury to the user or patient or in damage to the
medical product or other assets if not prevented.
NOTE
A NOTE provides additional information intended to avoid inconvenience
during operation and/or servicing.
Term
Maintenance
Maintaining the operative condition of a medical product
by suitable means
Inspection
Assessment of the actual condition of a medical product
Servicing
Maintaining the operative condition of a medical product
by recurrent, specified measures
Repair
Restoring the operative condition of a medical product
after failure of a device function
General safety precautions
Read through each section thoroughly before beginning servicing. Always
use the correct tools and the specified test equipment. Otherwise the device
may not work correctly or may be damaged.
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1.4
Definition
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General
General notes
WARNING
The device must be regularly inspected and serviced by maintenance
personnel. Repairs and complex maintenance work on the medical
product must be carried out by qualified specialists.
If you require a service contract, or for any necessary repair work,
Dräger recommends DrägerService. Dräger recommends using
original Dräger parts for servicing.
If the aforementioned instructions and recommendations are ignored,
the correct functioning of the medical product may be put at risk. Pay
attention to the "Servicing" section of the Instructions for Use.
WARNING
Non-conforming test values
If test values do not conform to specifications, the safety of the patient
may be put at risk.
–
Do not put the device into operation if test values do not conform to
specifications.
–
Contact your local service organization.
WARNING
Impermissible modifications to the device
If impermissible modifications are made to the device, the safety of the
patient may be put at risk.
Do not modify the device without Dräger's permission.
WARNING
Risk of infection
The unit may transmit pathogens following use on the patient.
–
Before carrying out any servicing, ensure that the device and its
components have been handed over by the user cleaned and
disinfected.
–
Service only cleaned and disinfected units and unit components.
WARNING
Risk to patient.
Ensure that no patient is connected to the device before starting
maintenance or repair work.
NOTE
No.2805_0000005555-002
Where reference is made to legislation, regulations and standards, in
respect of devices used and serviced in Germany they are based on the
laws of Germany. Users and technicians in other countries must comply with
their national laws and/or international standards.
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General
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General notes
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Abbreviations
This section contains a list of the abbreviations used in this document.
Abbreviations and definitions....................................................................................................
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Abbreviations
Abbreviations and definitions
10
Abbreviations and definitions
A
Ampere
AGFS
Anaesthetic gas scavenging system
AGS
Anaesthetic gas system
AIR
Medical compressed air
APL
Adjustable Pressure Limit
Aux. O2
O2 insufflation
Operator control unit
Display and operating unit
cmH2O
Centimetres head of water
CO2
Carbon dioxide
COM
Serial port
DVI
Digital Video Interface
EEPROM
Electrically Eraseable Programmable Read Only Memory
EMV
Electro Magnetic Compatibility
ESD
Electro Static Discharge
FG
Fresh gas
Flash-ROM
Flash Read Only Memory
FTP
File Transfer Protocol
Unit
Perseus A500 anaesthesia workstation system
hPa
Hectopascal
Hz
Hertz
I:E
Inspiratory-to-expiratory time ratio
ID
Identification
ILCA2
Infrared Gas Analyzer
kg
Kilogram
L
Litre
LAN
Local Area Network
LED
LED
MAC
Minimum Alveolar Concentration
MAN/ SPON
Manual ventilation/spontaneous breathing
mbar
Millibar
mmHg
Millimetres of mercury
MV
Minute volume
N 2O
Nitrous oxide, dinitrogen monoxide
Ncm
Tightening torque
Nm
Tightening torque
O2
Oxygen
O2+
O2 flush
Pa
Pascal, unit of pressure
PEEP
Positive end-expiratory pressure
Perseus A500
Name of anaesthesia workstation system
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Abbreviations
Abbreviations and definitions
Inspiratory pressure
PLD
Programmable Logic Device
PWM
Puls Width Modulation = Pulse Width Modulation
RAM
Random Access Memory
RFID
Radio Frequency Identification
SDRAM
Synchronous Dynamic RAM
SNMP
Simple Network Management Protocol
SPI
Serial Peripheral Interface
SRAM
Static RAM
SVF
Smart Vaporizer Function
TFT
Thin Film Transistor
UAR
Universal Asynchronous Receiver/Transmitter
USB
Universal Serial Bus
USV
Uninterruptible Power Supply
V
Volt
VT
Breath volume
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Pinsp
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Abbreviations
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Abbreviations and definitions
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Function descriptions
This chapter contains descriptions of the device's technical functions.
System overview ......................................................................................................................
Control panel (ECD) .................................................................................................................
Gas cylinder pressure regulators (option) ................................................................................
Mixer unit ..................................................................................................................................
Breathing system and interface ................................................................................................
Blower (M3.1) ...........................................................................................................................
Anaesthetic gas system (AGS).................................................................................................
Anaesthetic vaporizer (Vapor) ..................................................................................................
General points on the "Vapor View" .........................................................................................
Optional Vapor View (M605) ....................................................................................................
Fan ...........................................................................................................................................
Power supply unit(M7.3) ...........................................................................................................
Power failure backup battery ....................................................................................................
Main A500 PCB ........................................................................................................................
Therapy Control Unit PCB (M16.2)...........................................................................................
Blower A500 PCB .....................................................................................................................
M21 EAST PCB (M21, RFID unit) ............................................................................................
Ventilation Sensor PCB (M4.6).................................................................................................
PGM (M5x) ...............................................................................................................................
Auxiliary sockets without isolating transformer .........................................................................
Auxiliary sockets with 240 Volt isolating transformer (option)...................................................
Central brake ............................................................................................................................
Bronchial suction device...........................................................................................................
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Function descriptions
System overview
1
System overview
1.1
Introduction
The following presents the Perseus A500 anaesthesia workstation. The
various sections of the function description detail the precise functioning of
the individual components.
The Perseus A500 anaesthesia workstation is referred to in the following as
"the device".
Design
13573
1.2
Fig. 1
Designation
Item
1
Control panel with work surface illumination.
8
Trolley
2
Mixer unit
9
Anaesthetic gas system (AGS).
3
Work surface
10
CO2 absorbers
4
Pull-out table top (optional).
11
Breathing system.
5
Central brake
12
APL valve
6
Castors, centrally braked.
13
External fresh gas outlet (optional).
14
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Item
Front view of device
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Function descriptions
System overview
Item
Foot rest
Item
14
Plug-in connection for vaporizers with optional
"Vapor View".
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Designation
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Function descriptions
System overview
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Component structure
13582
1.3
Fig. 2
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Function descriptions
System overview
Designation
Function
Control panel (ECD)
Controls
Rotary knob and buttons.
LCD module
TFT LCD (WXGA, 15.32 inch).
LEDs
Illuminate the work surface (table).
GUIμC PCB (M596)
Connects the graphics microcontroller and the peripheral functions.
Touch-panel
Touch-sensitive surface.
Column
Fan 2
Regulates the temperature and prevents impermissible O2 enrichment in the mixer unit.
Mixer unit
The mixer unit generates the desired fresh gas from N2O, AIR and O2.
Vapor View (M605)
(option)
The function unit illuminates the vaporizers, reads out vaporizer data (from suitable
vaporizer models) and transfers the data to the device.
VSWAK
A-cone valve for the external fresh gas outlet (optional).
Auxiliary sockets
Connections for external devices (electrically isolated from the mains by an isolating
transformer).
Table (work surface)
Breathing system
Controls the gas flow from the ventilator to the patient. Gas breathed back into the breathing system has CO2 removed from it by means of a soda lime absorber and is re-used.
Blower (M3.1)
Generates the preset airway pressure.
Blower capacitor
(68 mF)
Buffer capacitor for the blower in the ventilator.
Ethernet switches
Only suitable for connection of devices or networks which have only a safety low voltage
(SELV) even in case of fault.
Device rocker switch
Main switch.
Plug for non-heating
apparatus
Connection for power cable (100 to 240 V).
Loudspeaker
Acoustic interface for alarms and notifications.
Blower A500 PCB
Power electronics to actuate the blower, the breathing system heater and valves in the
ventilator.
Main A500 PCB
Connects the PCBs to the modules and other device components.
External Temp. Sensor Measures the ambient temperature.
PCB
Therapy Control Unit
PCB (M16.2)
Microprocessor module to control and monitor anaesthesia units.
Fan 1, 3
In the device, fan 1 and 2 of the oxygen reduction and fan 3 for temperature regulation.
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M21 EAST PCB (M21) Transponder detection by RFID technology.
Power supply
unit(M7.3)
DC power supply for the device and battery charge management.
PGM (M5x)
The patient gas module is a complete, suction-based gas analyzer system.
Interfaces
Serial ports (COM 1 and COM 2), USB port and connection for an optional lamp.
Trolley
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Function descriptions
System overview
Designation
Function
Batteries
Two 12 Volt lead/gel batteries (for uninterruptible power supply (UPS)).
NTC
Measures the battery temperature during charging by the power supply unit.
Isolating transformer
Isolates the auxiliary sockets electrically from the mains.
Components beneath the work surface
12548
1.4
Fig. 3
Item
Overview of components and connections beneath the work surface
Designation
Item
Designation
PGM (M5x) (Patient Gas Module).
8
Therapy Control Unit PCB (M16.2).
2
Blower capacitor (not visible under
PGM).
9
Main A500 PCB.
3
Ventilation Sensor PCB (M4.6).
10
Rocker switch.
4
Breathing system (beneath it is the
pneumatic interface).
11
Power supply unit (M7.3).
5
M21 EAST PCB (M21)(RFID).
12
External Temp. Sensor PCB (beneath loudspeaker).
6
Cover for Blower A500 PCB.
13
Loudspeaker.
7
Connector to control panel.
-
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Function descriptions
System overview
Connections
12683
1.5
Fig. 4
Overview of connections
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Item
Designation
Item
Designation
1
PGM (M5x).
14
Plug-in fuse.
2
Fan 1.
15
Fuse for power supply unit.
3
Optional "Vapor View" (M605)
16
Power supply unit (M7.3).
4
Mixer unit.
17
Feed from isolating transformer (option) or from inlet connector for non-heating apparatus.
5
"A-cones" option (VSWAK).
18
Loudspeaker.
6
Main A500 PCB.
19
External Temp. Sensor PCB (beneath loudspeaker).
7
Interfaces of the Main A500 PCB.
20
Operator control unit with workstation light.
8
Rocker switch.
21
M21 EAST PCB (RFID, M21).
9
Therapy Control Unit PCB (M16.2).
22
PEEP valve (M595).
10
Fan 3.
23
Ventilation Sensor PCB.
11
Batteries (2x).
24
Blower (M3.1) (with fan M3 in mount).
12
Temperature sensor (charge management).
25
Blower capacitor (68 mF).
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Function descriptions
System overview
Item
Holder for plug-in fuse.
Item
26
Designation
Blower A500 PCB.
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Designation
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Function descriptions
Control panel (ECD)
2
Control panel (ECD)
2.1
Introduction
The control panel is an ECD (Embedded Control Display). The following
details its design, function and connections.
2.2
Design
10775
The control panel is based on a TFT LCD (WXGA, 15.32 inch) with touchpanel. A dual-link DVI cable connects the device to the control panel. The
modified DVI cable also supplies the control panel with the necessary
operating voltage. The signals of the DVI cable have no standard
assignment.
Fig. 5
Item
Control panel front view
Designation
Item
Designation
"ON/OFF" button.
4
Rotary knob.
2
"Lighting" button.
5
"Audio" button
3
LCD with touch-panel.
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Function descriptions
10783
Control panel (ECD)
Fig. 6
Item
Control panel rear view (housing open)
Designation
Item
Designation
Rotary Knob PCB
5
GUIμC PCB (M596)
2
Rotary encoder
6
LCD module
3
Backlight Inverter PCB
7
4
Workplace Light PCB
Input (DVI connection for signals and operating voltage)
with connector.
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Function descriptions
Control panel (ECD)
Functional principle
10777
2.3
Fig. 7
Block diagram
Designation
Function
"GUIμC"
A GUI (Graphical User Interface) microcontroller controls and monitors the peripheral
functions (such as readout of the touch-panel, the rotary knob and the buttons). The
microcontroller controls the functions of the LCD, the LEDs and the communication
between the control panel and the medical device.
"Power supply"
Voltage regulators generate the operating voltages of the function modules present in the
device from the 24 Volt input voltage (24VSW4, +18 V to +30 V).
Backlight inverter
Backlighting of the LCD.
Rotary knob
Central operator control element.
"Backlight" rotary knob Behind the rotary knob there are blue and yellow LEDs (for colour key see instructions for
use).
Input
The signals of the medical device have no standard DVI assignment.
"Backlight" interface
Interface to the backlight inverter of the LCD.
"Buttons" interface
Interface to the buttons.
"RotKnob" interface
Interface to the rotary knob.
"Touch" interface
Interface to the touch-panel.
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"Workplace Light" inter- Interface to the reading light.
face
LCD
The screen is a demirrored 15.4” TFT LC color display with a resolution of 1280 x 800
pixels.
"Power On" LED
When the medical device is switched on, the LED in the "On/Off" button is lit.
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Function descriptions
Control panel (ECD)
Designation
Function
The workstation can be illuminated by three LEDs (see instructions for use).
GUIμC PCB (M596)
The PCB connects the graphics microcontroller (GUIμC) and the peripheral functions.
"Audio Paused" button
The button is connected to the GUIμC PCB by the "Buttons" interface.
"On/Off" button
The button is connected to the GUIμC PCB by the "Buttons" interface.
"Reading light" button
The button is connected to the GUIμC PCB by the "Buttons" interface.
Touch-panel
The touch-panel is a monitor with a touch-sensitive surface. The TFT LC colour display is
behind a touch-sensitive covering, comprising 2 screens positioned a defined space
apart. The screens are coated in a conductive material on the sides facing each other.
When any point on the touch-screen is touched, the resistance between the outer and
inner screens at that point changes. The change in resistance is used to determine x and
y coordinates. The accuracy is to within 2 mm. Communication between the touch-sensitive covering and the processor unit is controlled by an internal RS232 interface.
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Reading light
(LED module)
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Function descriptions
Gas cylinder pressure regulators (option)
3
Gas cylinder pressure regulators (option)
3.1
Introduction
The following details the design, function and connections of the pressure
regulators for AIR, O2 and N2O.
3.2
Design
13723
The pressure regulators are single-stage pressure regulators for medical
gases, and can be used for cylinder pressures up to 200 bar. The
downstream pressure is in the range of approx. 5.0 bar.
Fig. 8
Pressure regulator design (example)
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Technical Documentation IPM
Meaning
1
Country-specific connection for gas cylinders.
2
Supply pressure sensor.
3
Blow-off valve
4
Connector to device.
5
Service port
6
Downstream pressure tube
7
Gas inlet connection (on device).
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