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Mindray A9 Service Manual
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8-
70
6.
Turn over the chassis an
d remove the se
ven screws with
the Phillips sc
rewdriver to rem
ove
the front
housing of t
he chassis.
Front housin
g of the chassis
Left and right side panels
Front side
of the chass
is
Rear side of t
he chassis
369
371
Table of Contents
Intellectual Property Statement
3
Revision History
3
Preface
4
Manual Purpose
4
Table of Contents
5
Safety
15
Safety Information
15
Warnings
15
Cautions
22
Notes
26
Theory of Operation
29
System Overview
29
Introduction
29
Appearance
31
Labels
43
Acronyms and Abbreviations
47
Subsystems
50
Electrical Circuit
50
Power System
53
Display System
56
Monitoring System
60
EFCS Flowmeter System
63
Auxiliary O2/Air System
66
Electronic Vaporizer System (A9)
72
Other Parts
72
Pneumatic Part
80
Symbols
87
Gas Supply Subsystem
87
Flowmeter Subsystem
94
Vaporizer Subsystem
95
Breathing Subsystem
100
Auxiliary Gas Supply Subsystem
107
AGSS Subsystem
108
Negative Pressure Suction Subsystem
112
Installation Guide
115
Preparations
115
Accessories
115
Tools
115
Installation Procedure
115
Unpacking
116
Installation
119
Tests after Installation
126
Maintenance Period
127
Pre-Maintenance Check
127
Parts of the Maintenance Packages
127
Installation Positions of the Sealing Rings and Filters in the Maintenance Packages
127
Maintenance Report
132
Testing
133
Power-On Self-Test
133
Performing the Power-On Self-Test
133
Power-On Self-Test Alarm Messages
133
System Check
134
Performing the System Check
135
Gas Supply Tests
136
O2 Supply Test
136
N2O Supply Test
136
AIR Supply Test
136
Cylinder Supply Tests
137
N2O Cylinder Supply Test
137
O2 Cylinder Supply Test
137
AIR Cylinder Supply Test
138
EFCS Accuracy Test
138
BFCS Function Tests
139
Checking Needle Valve Correspondence
139
Checking Needle Valve Not Closed
139
Accuracy Confirmation Test
140
Electronic Vaporizer Test (A9 Only)
140
Vaporizer Monitoring Function Test
140
Vaporizer Self-Locking Test
141
Vaporizer Interlock Test
141
Vaporizer Accuracy Test
142
Mechanical Vaporizer Test (A8 Only)
143
Vaporizer Interlock Test
143
Vaporizer Back Pressure Test
143
Vaporizer Accuracy Test
143
Vaporizer Leak Test
144
Other Functional Tests
145
High-Flow O2 Supply Test
145
High-Pressure O2 Output Test
145
O2 Flush Test
146
Mechanical ACGO Function Test
146
Internal AG Module Test
146
Circuit Function Tests
147
O2 Concentration and Tidal Volume Test
147
APL Valve Test
147
Patient Circuit Heating Test
148
Sample Gas Return Test
148
Active AGSS Check
148
Negative Pressure Suction Tests
149
Alarm Tests
149
Power Failure Alarm Test
149
Breathing Circuit Alarm Tests
149
O2 Supply Failure and Balance Gas Branch Flow Not Achieved Alarm Tests5-18
150
Ventilator-Related Alarm Tests
151
System Ventilation Performance Tests
153
Manual Mode Ventilation Test
153
VCV Adult Ventilation Mode Test
153
VCV Pediatric Ventilation Mode Test
154
PCV Adult Ventilation Mode Test
155
Sensor Zero Point Check
155
Constant Flow Test (Checking the Flow Sensor Accuracy)
156
Constant Flow Test (Checking the Pressure Sensor Accuracy)
157
Electrical Tests
159
Auxiliary Power Receptacle Test
159
Work Light Test
159
Electrical Safety Inspection Test
160
System Calibration
163
Overview
163
Precautions
163
Warnings
163
Cautions
164
Notes
164
System Calibration
165
Flow Calibration (User)
167
O2 Sensor Calibration (User)
174
Flowmeter Zeroing (User)
182
High-Flow O2 Supply Zeroing (User)
185
Pressure Calibration (Service)
189
Expiratory Valve Calibration (Service)
201
Pressure and Flow Zeroing (Service)
205
Total Flow Sensor Calibration (Service)
208
Internal AG Calibration (User)
213
External AG Calibration (User)
214
NMT Sensor Check (User) (Canada Only)
215
Vaporizer Injector Calibration (Service) (A9 Only)
218
Tests after Calibration
224
Troubleshooting
225
Precautions
225
Power-On Troubleshooting
225
Power-On and Display Failures
225
Auxiliary Outlet Failures
226
Leak Test Failures in Auto Mode
226
Leak Test Failures in Manual Mode
228
Technical Alarms
229
Power-On Self-Test Alarms
229
CPU Board Runtime Alarms
235
Power Board Runtime Alarms
236
Electronic Flowmeter and BFCS Runtime Alarms
239
VCM Runtime Alarms
244
Electronic Vaporizer Runtime Alarms
251
AGSS Module Runtime Alarms
255
Auxiliary O2/Air Module Runtime Alarms
255
HFNC Module Runtime Alarms
256
External AG Module Runtime Alarms
256
Internal AG Module Runtime Alarms
260
BIS Module Runtime Alarms
261
CO2 Module Runtime Alarms
265
NMT Module Runtime Alarms
268
Typical Troubleshooting
270
Failure to Exit the Standby Mode
270
Auto/Manual Switchover Failure
270
Mechanical Ventilation Stop
271
Inaccurate Tidal Volume Control
271
Inaccurate Airway Pressure Control
272
Inaccurate PEEP Control
273
Irregular Flow Waveforms
274
BFCS Failures
275
Electronic Vaporizer Failures
276
AGSS Failures
278
Auxiliary O2/Air and HFNC Module Failures
279
After-Service Tests
281
Diagnostic Tests
281
Valves Test
281
Insp Valve Test
286
PEEP Valve Test
287
Safety Valve Test
288
FCS Tests
289
Vaporizer Tests (A9)
293
HFNC Test
299
Repair and Disassembly
301
Disassemble the O2 Cell Holder Assembly
301
Prepare for Disassembly
301
Remove the O2 Cell Holder Assembly
301
Disassemble the Sodalime Absorber Canister Assembly
301
Remove the Sodalime Absorber Canister Assembly
302
Disassemble the Bypass Assembly
302
Prepare for Disassembly
302
Remove the Bypass Assembly
302
Disassemble the Bag Arm Assembly
303
Prepare for Disassembly
303
Remove the Bag Arm Assembly
303
Disassemble the Patient Circuit Assembly
303
Remove the Patient Circuit Assembly
304
Disassemble the APL Valve Assembly
304
Prepare for Disassembly
304
Remove the APL Valve Assembly
304
Disassemble the Locking Nuts of the Inspiration and Expiration Connectors
305
Prepare for Disassembly
305
Remove the Locking Nuts of the Inspiration and Expiration Connectors
305
Disassemble the Inspiration and Expiration Connectors
306
Prepare for Disassembly
306
Remove the Inspiration and Expiration Connectors
306
Disassemble the Water Collection Cup
306
Remove the Water Collection Cup
306
Disassemble the Volume Exchanger Assembly
307
Prepare for Disassembly
307
Remove the Volume Exchanger Assembly
307
Disassemble the VE Box Assembly
307
Remove the VE Box Assembly
308
Disassemble the VE Mounting Box In-Position Switch
308
Prepare for Disassembly
308
Remove the VE Mounting Box In-Position Switch
309
Pre-Disassembly (Disassemble Housings and some System Parts)
309
Open the Service Door
309
Remove the Auxiliary Output Assembly
309
Remove the Rear Cover Plate of the Work Surface
310
Remove the Work Surface Cover Plate FRU
310
Remove the Instrument Panel Assembly
310
Remove the Upper-Left Cover Plate
311
Remove the Display Assembly
312
Disassemble the N2O, Air, and O2 Inlet Assemblies
312
Prepare for Disassembly
312
Remove the N2O, Air, and O2 Inlet Assemblies
313
Disassemble the Pipeline Negative Pressure Inlet Assembly
313
Prepare for Disassembly
313
Remove the Pipeline Negative Pressure Inlet Assembly
314
Disassemble the Pressure Switch (Gas Inlet)
314
Prepare for Disassembly
314
Remove the Pressure Switch (Gas Inlet)
315
Disassemble the I/O Interface Board
315
Prepare for Disassembly
315
Remove the I/O Interface Board
315
Disassemble the Monitoring Board
316
Prepare for Disassembly
316
Remove the Monitoring Board
316
Disassemble the AC-DC Board
317
Prepare for Disassembly
317
Remove the AC-DC Board
317
Disassemble the DC-DC Board
318
Prepare for Disassembly
318
Remove the DC-DC Board
318
Disassemble the Motherboard
319
Prepare for Disassembly
319
Pre-Disassembly
319
Remove the Motherboard FRU
319
Disassemble the Pressure Regulator Assembly (0645)
320
Prepare for Disassembly
320
Remove the Pressure Regulator Assembly (0645)
320
Disassemble the EFCS Flowmeter Monitoring Board
320
Remove the EFCS Flowmeter Monitoring Board
321
Disassemble the EFCS Flowmeter FRU (O2/N2O/Air)
321
Prepare for Disassembly
321
Remove the EFCS Flowmeter FRU (O2/N2O/Air)
321
Disassemble the EFCS Flowmeter Flow Sensors
322
Prepare for Disassembly
322
Remove the EFCS Flowmeter Flow Sensors
322
Disassemble the N2O, Air, and O2 Cylinder Yoke Assemblies
323
Prepare for Disassembly
323
Remove the N2O, Air, and O2 Cylinder Yoke Assemblies
324
Disassemble the Sensor Adapter Board PCBA
324
Prepare for Disassembly
324
Remove the Sensor Adapter Board PCBA
325
Disassemble the High-Flow O2 Supply Assembly or Auxiliary O2/Air Assembly
325
Prepare for Disassembly
325
Remove the High-Flow O2 Supply Assembly or Auxiliary O2/Air Assembly8-26
326
Disassemble the System Switch Assembly
326
Prepare for Disassembly
326
Remove the System Switch Assembly
327
Disassemble the High-Flow O2 Therapy Flowmeter or Auxiliary Output Flowmeter Assembly
327
Prepare for Disassembly
327
Remove the High-Flow O2 Therapy Flowmeter or Auxiliary Output Flowmeter Assembly
328
Disassemble the Upper-Half Drawer Assembly
328
Prepare for Disassembly
328
Remove the Upper-Middle Drawer Assembly
328
Disassemble the Lower Drawer Assembly
329
Prepare for Disassembly
329
Remove the Lower Drawer Assembly
329
Disassemble the CO2 Locking Assembly
330
Prepare for Disassembly
330
Remove the CO2 Locking Assembly
330
Disassemble the AGSS Assembly
331
Prepare for Disassembly
331
Remove the AGSS Assembly
331
Disassemble the Module Rack Assembly
332
Prepare for Disassembly
332
Remove the Module Rack Assembly
332
Disassemble the Battery Box Assembly
333
Prepare for Disassembly
333
Remove the Battery Box Assembly
333
Disassemble the Anesthesia Calculation Pipeline Assembly
334
Prepare for Disassembly
334
Remove the Anesthesia Calculation Pipeline Assembly
334
Disassemble the Drive Gas Assembly
334
Remove the Drive Gas Assembly
335
Disassemble the ACGO Assembly
335
Prepare for Disassembly
335
Remove the ACGO Assembly
335
Disassemble the O2 Cell Calibration Valve Assembly
336
Prepare for Disassembly
336
Remove the O2 Cell Calibration Valve Assembly
336
Disassemble the Air Filter
337
Prepare for Disassembly
337
Remove the Air Filter
337
Disassemble the AG Module
337
Remove the AG Module
338
Disassemble the Valve Cover
338
Prepare for Disassembly
338
Remove the Valve Cover Assembly
338
Disassemble the One-Way Valve
339
Prepare for Disassembly
339
Remove the One-Way Valve
339
Disassemble the Vaporizer Manifold Assembly (A9)
339
Remove the Vaporizer Manifold Assembly
340
Disassemble the Electronic Vaporizer Base Interface Board PCBA (A9)
341
Prepare for Disassembly
341
Remove the Electronic Vaporizer Base Interface Board PCBA
341
Disassemble the O-Ring of Gas Connector (A9)
341
Remove the O-Ring of Gas Connector (A9)
342
Disassemble the Pneumatically-Controlled Lock Assemblies (A9)
342
Prepare for Disassembly
342
Remove the Pneumatically-Controlled Lock Assemblies
343
Disassemble the Small-Screen CPU Board (Without the Display Cable)
343
Prepare for Disassembly
343
Remove the Small-Display CPU Board Assembly (Without the Display Cable)8-44
344
Disassemble the Small Display
344
Prepare for Disassembly
344
Remove the Small Display Assembly
345
Disassemble the Backup Flowmeter Assembly
346
Prepare for Disassembly
346
Remove the Backup Flowmeter Assembly
346
Disassemble the Backup Flowmeter Door Electromagnet
347
Prepare for Disassembly
347
Remove the Backup Flowmeter Door Electromagnet
348
Disassemble the Indicator Light Board
348
Prepare for Disassembly
348
Remove the Indicator Light Board
348
Disassemble the Segment Display
349
Prepare for Disassembly
349
Remove the Segment Display
349
Disassemble the Encoder Beside the Segment Display
350
Prepare for Disassembly
350
Remove the Encoder Beside the Segment Display
350
Disassemble the BFCS Switch Control Board
351
Prepare for Disassembly
351
Remove the BFCS Switch Control Board
352
Disassemble the BFCS Door Assembly
352
Prepare for Disassembly
352
Remove the BFCS Door Assembly
352
Disassemble the Backup Flowmeter Keyboard
353
Prepare for Disassembly
353
Remove the Backup Flowmeter Keyboard
353
Disassemble the Alarm Lamp Board
354
Prepare for Disassembly
354
Removing the Alarm Lamp Board
354
Disassemble the Speaker
354
Remove the Speaker
355
Disassemble the Display Service Kit
355
Prepare for Disassembly
355
Remove the Display Service Kit
355
Disassemble the CPU Board PCBA
355
Remove the CPU Board PCBA
356
Disassemble the Key Lighting Board
356
Prepare for Disassembly
356
Remove the Key Lighting Board
356
Disassemble the Encoder Knob (Top Hat-Shaped)
357
Prepare for Disassembly
357
Remove the Encoder Knob (Top Hat-Shaped)
357
Disassemble the Flow Regulator Encoder and Two Gas Knobs
358
Prepare for Disassembly
358
Remove the Flow Regulator Encoder and Two Gas Knobs
358
Disassemble the Airway Pressure Gauge
358
Remove the Airway Pressure Gauge
359
Disassemble the Auto/Manual Switch Assembly
359
Prepare for Disassembly
359
Remove the Auto/Manual Switch Assembly
360
Disassemble the Upper-Left Cover Plate FRU
360
Prepare for Disassembly
360
Remove the Upper-Left Cover Plate FRU
361
Disassemble the O2 Cell Door Cover Assembly
361
Prepare for Disassembly
361
Remove the O2 Cell Door Cover Assembly
362
Disassemble the O2 Cell Cable
362
Prepare for Disassembly
362
Remove the O2 Cell Cable
362
Disassemble the Circuit Adapter Block Assembly
363
Prepare for Disassembly
363
Remove the Circuit Adapter Block Assembly
363
Disassemble the Circuit Switch (Hook Lock)
364
Prepare for Disassembly
364
Remove the Circuit Switch (Hook Lock)
364
Disassemble the Circuit Heater
365
Prepare for Disassembly
365
Remove the Circuit Heater
365
Disassemble the Auto/Manual Position Detection Switch
366
Prepare for Disassembly
366
Remove the Auto/Manual Position Detection Switch
366
Disassemble the APL Valve Mounting Base Assembly
367
Prepare for Disassembly
367
Remove the APL Valve Mounting Base Assembly
367
Disassemble the Auto/Manual Drive Valve Assembly
368
Prepare for Disassembly
368
Remove the Auto/Manual Drive Valve Assembly
368
Disassemble the STEINCO 5-Inch Central Control Caster
368
Remove the STEINCO 5-Inch Central Control Caster
369
Disassemble the STEINCO 5-Inch Standalone Brake Casters
372
Prepare for Disassembly
372
Remove the STEINCO 5-Inch Standalone Brake Casters
373
Software Upload
375
Preparations
376
Upgrading the Software
377
Upgrade Via USB Drive
380
Test after Upgrade
380
Software Function Activation
381
Application of Software Function Activation Codes
381
Activation Procedure
382
Frus
385
Mechanical Subsystem
385
Display Assembly
385
Cylinder Yoke Assembly
387
High-Flow O2 Therapy Flowmeter Assembly, and System Switch Assembly11-4
388
High-Flow O2 Supply Assembly, Anesthesia Calculation Inlet Pipeline Assembly, and EFCS Flowmeter Service Part
389
Instrument Panel Assembly
390
O2 Cell Door Cover Assembly, O2 Cell Calibration Valve Assembly, and ACGO Assembly
392
Built-In AG Assembly (A9)
393
Gas Inlet Assembly
394
Drawer and Battery Box Assemblies
396
Circuit Adapter Block Assembly
397
Boards
398
Work Surface and Left Cover Plate
399
Mechanical Vaporizer Subsystem (A8)
401
AGSS Assembly
402
VE Mounting Box Assembly
403
Sensor Adapter Board PCBA
404
Drive Gas Assembly
409
Gas Supply Subsystem
410
O2 Inlet Assembly
410
Flowmeter Subsystem
411
EFCS Assembly
411
Vaporizer Subsystem(A9)
412
Electronic Vaporizer Base
412
Breathing Circuit Subsystem
413
Patient Circuit Material Package
413
Patient Circuit Assembly
414
Circuit Connector Adapter Assembly
415
A Tube Connection Diagrams
417
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Mindray A9 Specifications
General
Brand
Mindray
Model
A9
Category
Medical Equipment
Language
English
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