Aeonmed Aeon7400A User manual
Aeon7400A Service Manual
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Contents
Contents.........................................................................................................................................................i
1 Introduction.............................................................................................................................................1
1.1 Symbols.......................................................................................................................................2
1.2 Warranty considerations..............................................................................................................3
2 Description..............................................................................................................................................4
2.1 General description......................................................................................................................4
2.2 Features of Aeon7400A...............................................................................................................4
2.3 Specification................................................................................................................................5
3 Checking .................................................................................................................................................6
3.1 Preoperative Checkout procedures..............................................................................................6
3.2 Testing the gas supply pipeline and the gas cylinder...................................................................8
3.3 Monitoring Flow Control ..........................................................................................................10
3.4 Installing and testing of vaporizer.............................................................................................14
3.5 Testing alarm.............................................................................................................................15
3.6 Testing the Breathing System....................................................................................................16
3.7 Testing Ventilator.......................................................................................................................17
4 Theory and Diagram..............................................................................................................................19
5 User Maintenance..................................................................................................................................21
5.1 Repair Policy.............................................................................................................................22
5.2 Maintaining Outline and Schedule............................................................................................23
5.3 Replacing fuses .........................................................................................................................24
Aeon7400A Service Manual
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1 Introduction
This service manual provides procedures for testing and maintaining the Aeonmed model
anesthetic machine. It is not intended to be a complete maintenance document; therefore, it
contains no disassembly or reassembly instructions.
Refer any repairs or adjustments that exceed the scope of this manual to the Service Center of
Beijing Aeonmed Co., Ltd by calling
800-810-8333 or 86-10-88799987-333
This manual contains proprietary information. It is intended for use only by individuals qualified in
the installation and maintenance of the Aeonmed anesthetic machine. Receipt, purchase, or
possession of this document in no way confers or transfers any other rights for the use of this
information. Disclosure or reproduction of the enclosed, without the written permission of Beijing
Aeonmed Co., Ltd is prohibited.
This manual is intended for use only by technicians who have successfully completed Beijing
Aeonmed Co., Ltd training on this product.
Beijing Aeonmed Co., Ltd believes the information herein is accurate but accepts no responsibility
for errors, omissions, or misrepresentation.
Aeon7400A Service Manual
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1.1 Symbols
Warnings and Cautions indicate all the possible dangers in case of violation of the
stipulations in this manual. Refer to and follow them.
WARNING: indicates potential hazards to operators or patients
CAUTION: indicates potential damage to equipment
Instead of illustrations, other symbols may also be utilized. Not all of them may necessarily appear
in the equipment and manual. The symbols include:
ON（Power）Type B equipment
OFF（Power）SN Serial Number
Alternating Current Warning or Caution, ISO
7000-0434
Protectively earth NOTE: refer to the manual,
IEC601-1
Equipotential This way up
Dangerous Voltage
Oxygen flush Button
Movement in one direction Lock
Movement in two directions Unlock
Inspiration flow
Expiration flow
Aeon7400A Service Manual
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Alarm Silence
View the reading on the top of
float
Ventilator operate
Bag operate
Directions of Drain Valve
1.2 Warranty considerations
Do not make any service repairs on this equipment during the states warranty period. Any
unauthorized work immediately voids the warranty. Aeonmed will not be liable for any repairs
attempted by the owner. Any such attempted repairs other than specified no warranty repairs void
the warranty.
Aeon7400A Service Manual
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2 Description
This chapter describes the systems, features, controls, and labels on the Aeonmed
anesthetic machine. Also included is a description of the table of technical specifications.
2.1 General description
The Aeon7400A range of continuous flow inhalation anesthetic machines are intended for use
with human patients, in conjunction with anesthetic vaporizers, breathing hoses and patient
connection fittings which comply with the relevant ISO standard or equivalent.
Depending upon the patient circuit selected, the machines can be used in semi closed or closed
circuit configurations.
Aeon7400A is applicable for patient of over 300mL with standard set and for child of over 80mL
with bellows assembly and circles of child.
Aeon7400A equipped with MV200 microprocessor ventilator is pneumatic, electronic-controlled,
pressure-limit and time-cycled ventilator with perfect IPPV ventilating mode and monitoring
system.
2.2 Features of Aeon7400A
Feature Aeon7400A
Model of ventilator MV200
Mode of ventilation IPPV/Manual
I:E ratio 2:1 to 1:4
Respiration frequency 6 to 60bpm
Tidal volume 0 to 1200ml
Power failure alarm Yes
High pressure 20 to 60cmH2O
Low pressure 5 to 20cmH2O
Alarm silence Not more than 120senconds
vaporizer VP200
Circle absorber Yes
Bellows Adult/pediatric
Flowmeter Four tubes, O2/N2O(cascade/continuous)
Aeon7400A Service Manual
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2.3 Specification
Power
Power line 220V±22V, 50Hz±1Hz
φ5×20, 0.5A（F）
φ5×20, 5A（F）
Fuses
φ5×20, 2A（F）
Power usage <=50W
Type Positive pressure volume
Type of protection: class IProtection against electrical
shock Degree of protection: Type BF
Gas input
Gas type O2/N2O
Gas pressure 0.3-0.5Mpa
Environment
Ambient temperature +5 °C to +40°C
Relative humidity Not more than 80%
Atmospheric pressure 96kPa to104kPa
Noise of whole set <65dB(A)
Warming up no less than 5min
Miscellaneous
Dimensions 1350(H)×620(D)×650(W)mm
Work surface height 840mm
Writing tablet 540×300mm
Weight 120kg (265lb)
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3 Checking
3.1 Preoperative Checkout procedures
Test interval Preoperative Checkout should be done in the following situation:
Before the first patient’s use everyday.
Before every patient’s use.
Perform the programs according to requirements after repair or maintenance.
Test schedule is given in the table below:
Before use of the first patient each day Before use of each patient
System check:
Power failure alarm test:
Gas pipeline and gas cylinder test:
Flow control test:
Vaporizer installation and test
Alarm test:
Breathing system test:
Ventilator test:
Breathing system test:
Ventilator test:
WARNING: Do not use this system before the operation and maintenance manual
are read and understood.
•Whole system connection
•All warnings and cautions
•Using guide of each system module
•Testing method of each system module
Before using this system:
•Complete all tests of this section
•Test all the rest of system modules
If test failure, do not use this system. Please contact service representative.
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3.1.1 System Checkout
WARNING: make sure the breathing circuit is connected correctly and in good
condition.
Make sure:
1 Equipment is in good condition.
2 All the components are correctly connected.
3 Breathing circuit is correctly connected and in good condition; there is sufficient
absorbent in the breathing system.
4 Vaporizer is in lock position and is filled with sufficient anesthetic.
5 The connection and pressure of pipeline gas supply system are correct.
6 The connected cylinder valve should be closed if there are backup cylinders.
WARNING: Do not leave the cylinder valves open during pipeline gas supply
period; otherwise, cylinder gas supply will be used up and lead to
insufficient supply in case of pipeline malfunction.
7. The required emergency device is ready and in good condition.
8. The device for airway maintenance, organ cannula are ready and in good condition.
9. The applicable anesthetic and emergency medicine are ready.
10. Make sure the truckles are tight and locked and free of motion.
11. Connect the power cord to the AC power outlet. The power indicator light will light up
when power is connected.
If failure, that means no electric power supplying. Exchange other sockets, close breaker,
or replace power cord.
3.1.2 Mains failure alarm test
1 Turn power switch to “I”, stand-by interface appears after self-test.
2 After operating 5 minutes, pull out power cord.
3 Make sure that power off failure alarm occurs, it has the following characteristics:
•Alarm sound;
4 Connect power cord again.
5 Make sure the alarm eliminate.
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3.2 Testing the gas supply pipeline and the gas cylinder
CAUTION: A user must confirm that gas supply is connected correctly; there is
no any disconnection, leakage, faulty connection in gas circuits and
pressure indicates correctly. Stop using and check gas connections if
abnormal.
CAUTION: To prevent from damage:
Open cylinder valve slowly.
Never control the flow with excessive force.
Skip step 2 if the system is not using cylinder gas supply.
1 Disconnect all pipeline gas supply and close all the cylinder valves.
•If the readings of the pipeline pressure gauge and cylinder pressure gauge are not
zero.
•Switch on O2supply.
•Adjust flow control to middle range.
•Make sure all the pressure gauges are reset to zero except the O2pressure gauge.
•Switch off O2supply.
•Make sure the O2pressure gauge is reset to zero. The low O2supply alarm should
be on when pressure drops.
2 Make sure cylinders are fully filled:
•Open each cylinder valve.
•Make sure the pressure of each cylinder is high enough. In case the pressure is
insufficient, close the corresponding cylinder valve and install a fully filled cylinder.
3 Test cylinder high pressure leak one by one.
4 Close flowmeters.
5 Open the cylinders.
6 Record the cylinder pressures.
7 Close the cylinder valves.
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