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Mindray A3 Service Manual
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Ventilator Control and Drive
Theory of Operation
1 - 70
046-001141-00
A5/A3™ Service Manual
1.7.4
Infrar
ed C
ommunication Boar
d
FIGURE 1-59
Infrared
Communication
Board, T
op View
FIGURE 1-60
Infrared Communication Board
,
Bottom
View
7
BC2
Batter
y In-position Signal
8G
N
D
G
r
o
u
n
d
PIN
NAME
F
UNCTION
83
85
Table of Contents
Table of Contents
5
Foreword
11
Warnings
11
Warnings, Cautions, and Notes
11
Cautions
12
Notes
13
Theory of Operation
15
Introduction
16
Electrical and Pneumatic Connections
18
Electrical Connections (A3)
18
Electrical Connections (A5)
21
Pneumatic Connections (A3)
24
Pneumatic Connection (A5)
27
Connections between Pneumatic Circuit, Breathing System and Ventilator Control Board
30
Gas Flow
32
Pneumatic Circuit Diagram
32
Parts List
33
Key to Symbols
34
Description
34
Gas Flow
44
Anesthesia System Components
47
Auxiliary Outlets
47
Work Light Board
47
The Breathing System
50
Brief Introduction
50
Automatic Mode, Inspiration
50
Automatic Mode, Expiration
51
Manual Mode, Inspiration
51
Manual Mode, Expiration
52
Pneumatic PEEP
53
Ventilator in Standby
53
Breathing System Components
53
Ventilator UI
55
Display
55
CPU Board
62
Ventilator Control and Drive
65
Mother Board
65
Ventilator Control and Drive Board
75
Battery
82
Infrared Communication Board
84
Breathing System Heater
85
Ventilator Pneumatic- O2 Drive Gas
86
Ventilator Pneumatic Drive
86
Drive Pressure-High Pressure Regulator (200 Kpa, 29 Psi)
86
Drive Gas Assembly
86
Tube Color Coding
86
Installation Guide
87
Default Chapter
88
Preparation - Additional Material Required
88
Assembly
89
Unpacking and Setup
89
Breathing System and Breathing System Accessories and Checkout Procedures
103
Vaporizers (if Available)
103
Monitoring Products Mounting and Electrical Connection (if Available)
105
Functional Tests
106
Breathing System Leak Test
106
Display Setup Check
113
O2 Sensor Calibration(Only for A3'S and A5'S Without an AG Module)
114
Calibrate the AG Module(Only A5S with Gas Module)
122
Gas Module Verification
123
Gas Delivery System Tests
123
Pneumatic Leak Tests
126
N2O Cylinder Leak Test
126
O2 Cylinder Leak Test
126
AIR Cylinder Leak Test
126
Line Pressure Leak Tests
127
Line Pressure Gauges Accuracy Test
128
Breathing System Checks
129
Waste Gas Scavenger Test (if Available)
129
Internal Gas Connections Test
129
Drive Gas Pressure Loss Alarm, N2O Cutoff Test
129
Performance Verification
130
Manual Ventilation Test
130
Manual Mode Ventilation Test
130
APNEA Alarm Test
131
Alarm Silence Test
131
VCV Adult Ventilation Mode Test
131
VCV Adult Ventilation Mode Test 2
131
VCV Child Ventilation Mode Test
132
Airway Disconnect Alarm Test
133
PCV Adult Ventilation Mode Test
133
Pressure Support (PS) Ventilation Mode Test
134
Alarms and Fail Safe Functions
135
Set up
135
Low Fio2 Alarm Test
135
High Fio2 Alarm Test
135
Peak Pressure Alarms Test
136
Minute Volume Alarm Test
136
Miscellaneous Tests
137
Test the Line Voltage Alarm
137
Top Light and Auxiliary Light Test
137
Touchpad /USB Mouse Test
137
Vaporizer Interlock Test
137
Vaporizer Accuracy Test
138
Electrical Tests
139
Auxiliary Electrical Outlet Test
139
Electrical Safety Inspection Test
139
Electrical Safety Inspection Form
140
Periodic Maintenance
141
Maintenance Schedule
142
Periodical Maintenance Consumable Parts Kits
142
Periodical Maintenance Schedule
142
Checklist before Surgery
143
Visual Inspection Checklist
144
List of Periodic Maintenance Parts to be Replaced and Checked
144
Battery Maintenance and Replacement
148
Functional Tests
149
Breathing System Leak Test
149
Check the AG Module Accuracy
156
Gas Module Verification
157
Gas Delivery System Tests
157
Check the Sensor Zero Point
158
Check the Flow Sensor Accuracy
159
Check the Pressure Sensor Accuracy
163
Check the Electronic Flowmeter Accuracy
168
Pneumatic Leak Tests
171
Line Pressure Leak Tests
172
Line Pressure Gauges Accuracy Test
173
Breathing System Checks
174
Drive Gas Pressure Loss Alarm, N2O Cutoff Test
175
Performance Verification
176
Alarm Silence Test
177
VCV Child Ventilation Mode Test
178
PCV Adult Ventilation Mode Test
179
Alarms and Fail Safe Functions
180
Peak Pressure Alarms Test
181
Miscellaneous Tests
182
Vaporizer Interlock Test
182
Vaporizer Accuracy Test
183
Electrical Tests
184
Electrical Safety Inspection Form
185
Calibration
187
Introduction
188
Calibration Warnings, Precautions, and Notes
189
System Calibration
191
O2 Sensor Calibration
192
Flow Calibration (User)
201
Flow Calibration (Service)
204
Pressure Calibration (Service)
227
Pressure and Flow Zeroing (Service)
242
Electronic Flowmeter Zeroing (User)
246
Calibrate the AG Module
250
ORC Calibration
251
Cylinder Yoke Regulator Calibration
257
Adjust the Back Pressure Valve
261
Repair and Troubleshooting
263
Default Chapter
264
Troubleshooting Guidelines
264
Technical Alarms Check
265
CPU Board Runtime Alarm
268
Fresh Flow Sensor Board Alarm
270
Ventilator Control Board Runtime Alarm
272
Real-Time Alarms of External AG Module
275
Pneumatic Circuit System Problems
279
Gas Supplies and Drive Gas
288
Anesthetic Gas Delivery System
297
Breathing System
312
Tidal Volume
326
Sensors and Valves Problems
329
Preparations before Using Diagnostic Tests
330
Connections and Measurement of the Flow Sensors Problems
331
Connections and Measurement of the Pressure Sensors Problems
332
Opening State of the Inspiratory Valve Problems
333
Opening State of the PEEP Valve Problems
334
Hardware and Electrical Problems
335
Software Update and Software Configuration Activation
337
Repair and Disassembly
341
Prepare for Disassembly
342
Disassemble the Assemblies
343
Disassemble Hardware Box
348
Disassemble the Work Surface
359
Disassemble the Display
369
Remove the Module Rack Assembly
378
Remove the Module Rack Fan
379
Remove the Panel of Pressure Gauges
380
Remove the Auxiliary Gas Outlet Assembly
382
Remove the Rotating Block Cover of Breathing Circle
383
Disassemble the Base Assembly
384
Disassemble the Breathing System
387
Remove the Breathing Tubes
388
Remove the Flow Sensor
389
Remove the Manual Bag
390
Remove the CO2 Bypass Assembly
392
Remove the Patient Circle Assembly
394
Remove the Pop-Off Valve Assembly
395
Disassemble the Expiratory/Inspiratory Check Valve Assemblies
397
Remove the Water Collection Cup
398
Remove the Airway Pressure Gauge
399
Remove the Back Upper Cover and Back Lower Cover Assemblies
400
Remove the Front Upper Cover, Median Plate and Front Lower Cover Assemblies
402
Disassemble the Automatic/Manual Ventilation Switch Assembly
404
Remove the APL Valve Assembly
406
Replacement Parts
409
Introduction
410
Diagrams and Tables
411
Warranty
431
Warranty Statements
432
Disclaimers
433
4
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Mindray A3 Specifications
General
Brand
Mindray
Model
A3
Category
Medical Equipment
Language
English
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