EDAN iM3 User manual

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文件名称(Document Name)：iM3 维修手册_英文
文件编号(Number)：01.54.457834
版本(Version)：1.1
产品型号(Product Model)：iM3
项目编码(Project Code)：00004I002
签批信息(Signature):
作者(Originator) : 陈 艳娟 (chenyanjuan) 2018-02-07 10:15:49
审核人(Reviewers) : 程 亮 (chengliang) 2018-02-07 11:33:42
审核人(Reviewers) : 史 洪华 (shihonghua) 2018-02-07 11:28:34
审核人(Reviewers) : 韦 华彪 (weihuabiao) 2018-02-07 15:36:37
审核人(Reviewers) : 陈 良款 (chenliangkuan) 2018-02-07 14:08:44
批准人(Approvers) : 夏 欢欢 (xiahuanhuan) 2018-02-24 13:16:16
批准人(Approvers) : 陈 浩杰 (chenhaojie) 2018-02-23 15:21:15
版权©深圳市理邦精密仪器股份有限公司 (Copyright©Edan Instrument,Inc.)

I
About this Manual
P/N: 01.54.457834
MPN: 01.54.457834011
Release Date: February 2018
© Copyright EDAN INSTRUMENTS, INC. 2017-2018. All rights reserved.
Statement
This manual will help you understand the operation and maintenance of the product better. It is
reminded that the product shall be used strictly complying with this manual. User’s operation
failing to comply with this manual may result in malfunction or accident for which EDAN
INSTRUMENTS, INC. (hereinafter called EDAN) can not be held liable.
EDAN owns the copyrights of this manual. Without prior written consent of EDAN, any
materials contained in this manual shall not be photocopied, reproduced or translated into other
languages.
Materials protected by the copyright law, including but not limited to confidential information
such as technical information and patent information are contained in this manual, the user shall
not disclose such information to any irrelevant third party.
The user shall understand that nothing in this manual grants him, expressly or implicitly, any
right or license to use any of the intellectual properties of EDAN.
EDAN holds the rights to modify, update, and ultimately explain this manual.
Responsibility of the Manufacturer
EDAN only considers itself responsible for any effect on safety, reliability and performance of
the equipment if:
Assembly operations, extensions, re-adjustments, modifications or repairs are carried out by
persons authorized by EDAN, and
The electrical installation of the relevant room complies with national standards, and
The instrument is used in accordance with the instructions for use.
EDAN will make available on request circuit diagrams, component part lists, descriptions,
calibration instructions, or other information that will assist service personnel to repair those parts
of the equipment that are designated by EDAN as repairable by service personnel.

II
Terms Used in this Manual
This guide is designed to give key concepts on safety precautions.
WARNING:
A WARNING label advises against certain actions or situations that could result in personal
injury or death.
CAUTION:
A CAUTION label advises against actions or situations that could damage equipment, produce
inaccurate data, or invalidate a procedure.
NOTE:
A NOTE provides useful information regarding a function or a procedure.

III
Table of Contents
Chapter 1 Warranty and Service ................................................................................................ 1
Chapter 2 Safety Guidance .......................................................................................................... 4
2.1 Introduction........................................................................................................................ 4
2.2 General Information........................................................................................................... 4
2.3 Safety Precautions.............................................................................................................. 4
2.4 Explanation of Symbols on the Monitor............................................................................ 6
Chapter 3 Installation................................................................................................................... 8
3.1 Environment Requirements................................................................................................ 8
3.2 Electrical Requirements..................................................................................................... 8
3.3 Safety Requirements .......................................................................................................... 9
3.4 Installing the Monitor......................................................................................................... 9
3.5 Connecting to AC Power Supply..................................................................................... 10
Chapter 4 Test and Maintenance............................................................................................... 11
4.1 Routine Test..................................................................................................................... 11
4.1.1 Visual Inspection.................................................................................................... 11
4.1.2 Power- on Test ....................................................................................................... 11
4.1.3 Key Test................................................................................................................. 11
4.1.4 Checking Touch Screen ......................................................................................... 11
4.1.5 Checking Internal Barcode Scanner....................................................................... 11
4.1.6 Recording Test....................................................................................................... 12
4.1.7 Alarm Test.............................................................................................................. 12
4.2 Functional Tests and Accuracy Tests............................................................................... 12
4.2.1 SpO2Functional Test ............................................................................................. 12
4.2.2 NIBP Functional Test............................................................................................. 13
4.2.3 NIBP Leakage Test................................................................................................ 13
4.2.4 NIBP Calibration.................................................................................................... 14
4.2.5 NIBP Accuracy Test .............................................................................................. 15
4.2.6 TEMP Functional Test........................................................................................... 16
4.3 Safety Test........................................................................................................................ 17
4.3.1 Safety Test Procedures........................................................................................... 17
4.3.2 Protective Earth Resistance.................................................................................... 18
4.3.3 Enclosure Leakage Current.................................................................................... 19
4.3.4 Patient Leakage current.......................................................................................... 20
4.3.5 Patient Leakage Current- Single Fault Condition (S.F.C) Mains on Applied Part 21
4.4 Maintenance..................................................................................................................... 22
4.4.1 Maintenance of the Monitor................................................................................... 23
4.4.2 Maintenance of the Sensor..................................................................................... 23
4.4.3 Maintenance of the Battery.................................................................................... 23
4.4.4 Maintenance of the Recorder................................................................................. 23
Chapter 5 System Configuration............................................................................................... 24
5.1 Enter Factory Maintain .................................................................................................... 24
5.2 Enter Demo Mode............................................................................................................ 24
5.3 Default Configuration ...................................................................................................... 25

IV
5.4 Network Setup.................................................................................................................. 25
5.5 Configure the System Time ............................................................................................. 25
Chapter 6 Principle Introduction.............................................................................................. 26
6.1 System Principle Block Diagram..................................................................................... 26
6.1.1 Main Control Board ............................................................................................... 26
6.1.2 Parameter Board..................................................................................................... 27
6.1.3 Battery Module....................................................................................................... 27
6.2 Interface............................................................................................................................ 28
Chapter 7 Troubleshooting ........................................................................................................ 29
7.1 Machine Failures.............................................................................................................. 29
7.2 Display Failures ............................................................................................................... 30
7.3 Operation Failures............................................................................................................ 31
7.4 Recorder Failures............................................................................................................. 32
7.5 Network Failures.............................................................................................................. 33
7.6 Power Board Failures....................................................................................................... 33
7.7 Alarm Failures.................................................................................................................. 34
7.8 Parameter Failures............................................................................................................ 34
Chapter 8 Disassembling the Monitor ...................................................................................... 36
8.1 Tools Required................................................................................................................. 36
8.2 Disassembling the Main Unit........................................................................................... 36
8.3 Disassembling the Front Housing Assembly................................................................... 40
8.3.1 Replacing the Touch Screen or Protective Screen................................................. 41
8.3.2 Replacing the LCD................................................................................................. 42
8.3.3 Replacing the Main Control Board........................................................................ 43
8.3.4 Replacing the Wi-Fi Interface Board..................................................................... 44
8.3.5 Replacing the Alarm Indicator Board .................................................................... 44
8.3.6 Replacing the Rotary Knob.................................................................................... 45
8.4 Disassembling the Rear Housing Assembly.................................................................... 45
8.4.1 Replacing the Power Module................................................................................. 45
8.4.2 Replacing SunTech Module................................................................................... 46
8.5 Disassembling the Middle Frame Assembly.................................................................... 47
8.5.1 Replacing the Pump/Valve Assembly.................................................................... 47
8.5.2 Replacing the Battery Interface Board................................................................... 48
8.5.3 Replacing the Network Interface Board................................................................. 49
8.5.4 Replacing Parameter Board.................................................................................... 49
8.5.5 Replacing Sensor Board of Main Unit................................................................... 51
8.6 Disassembling the Plug-in Module.................................................................................. 52
8.6.1 Replacing iM3 T2A Isolation Board/T2A Main Control Board............................ 54
8.6.2 Replacing Quick TEMP Module/M3 Covidien TEMP Module Communication
Isolation Board................................................................................................................ 56
8.6.3 Replacing the Isolation Board of M3 Infrared Ear TEMP..................................... 57
8.6.4 Replacing the Recorder.......................................................................................... 59
8.6.5 Replacing the Sensor Board of Recorder............................................................... 60
8.6.6 Replacing the Adapter Board of Recorder............................................................. 61
Chapter 9 Replaceable Parts...................................................................................................... 62

Vital Signs Monitor Service Manual Warranty and Service
- 1-
Chapter 1 Warranty and Service
Standard Service
EDAN provides a one-year-warranty for the warranted products (accessories are included). The
warranty period begins on the date the products are shipped to customers. If a customer promptly
notifies EDAN of customer’s warranty claim hereunder, EDAN will either repair, adjust or
replace (with new or exchange replacement parts) EDAN’s products. EDAN warrants that any
service it provides to customers will be performed by trained individuals in a workmanlike
manner.
Limitation of Warranty
Direct, indirect or final damage and delay caused by the following situations for which EDAN is
not responsible may void the warranty:
Groupware is dismounted, stretched or redebugged.
Unauthorized modification or misuse.
Damage caused by operating beyond the environmental specifications for the medical
product.
Change or remove original serial number label or Manufacturer symbol.
Improper use.
Service Procedure
(1) Fill in the Service Claim Form (SCF).
Fill in the SCF with detailed information including: Model Name, Serial Number (SN) and
Problem Phenomena.
EDAN should not have any obligation to take over the case without this information. The
form can be downloaded at: http://www.edan.com.cn or obtained from EDAN’s Service
Department.
(2) Send EDAN the SCF and Select a Solution.
Once the service department receives the fully filled SCF, EDAN’s engineer will offer a
solution in three working days. EDAN will follow out the case based on the two conditions
below:
Within Warranty:
There are two options:
i) After receiving the Return Material Authorization (RMA) form from EDAN service
department, the customer sends EDAN the defective parts and informs about the shipment
tracking number. Then we will dispatch new part (s) to your confirmed address with
confirmed shipping invoice.

Vital Signs Monitor Service Manual Warranty and Service
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ii) The customer signs the Declaration Form and sends it back by email or fax. This form is
legally certificated to make sure the customer or end-user will return the defective parts to
EDAN on time. We will, at this option, dispatch the replacement one (s) with confirmed
shipping invoice.
NOTE:
1 Both Return Material Authorization Form and Declaration Form are offered by EDAN
service department once the SCF is confirmed by service engineer.
2 The customer is responsible for freight & insurance charges when the equipment is
shipped to EDAN for service, including custom charges. EDAN is responsible for the
freight, insurance & custom charges from EDAN to the customer.
Out of Warranty:
After receiving the RMA form from the service department, the customer sends defective
parts to EDAN in advance. We will analyze the problems and discuss with the customer about
either repairing or replacing the part (s). Once the maintenance fee is invoiced and paid, we
will make sure to dispatch good part (s) to the confirmed address.
NOTE: The customer is responsible for any freight & insurance charge for the returned
product.
(3) Obtain the RMA Form.
Before the shipment of the materials, the customer must obtain an RMA form from our
service department, in which the RMA number, description of returning parts and shipping
instructions are included. The RMA number should be indicated on the outside of the
shipping container.
NOTE:
EDAN should not have any obligation to the end-user or customer who returns the goods
without the notification by EDAN’s service department. The sender takes full
responsibility for the accounted fee.
(4) Send the Parts to EDAN.
Follow these recommended instructions:
Please disassemble the parts with anti-static facility, do not touch the parts with naked hand.
Please pack the parts safely before return.
Please put the RMA number on the parcel.
Please describe the returned parts as ‘sample of *****’ and put the total value on the invoice,
and note on the invoice as ‘sample, no commercial value’.
Please confirm the invoice with EDAN before shipment.
Please send back the parts after EDAN’s confirmation.

Vital Signs Monitor Service Manual Warranty and Service
- 3-
Contact Information
If you have any question about maintenance, technical specifications or malfunctions of devices,
do not hesitate to contact us.
EDAN INSTRUMENTS, INC.
TEL: [phone]
FAX: [phone]
E-mail: [email protected]

Vital Signs Monitor Service Manual Safety Guidance
- 4-
Chapter 2 Safety Guidance
2.1 Introduction
This service manual is a reference for periodic preventive maintenance and corrective service
procedures for the iM3 monitor. It provides troubleshooting information, assembly procedures,
instructions for functional testing and performance verification. It is intended for use only by
technically qualified service personnel.
WARNING
When performing a service procedure, follow the instructions exactly as presented in this
manual. Failure of doing so might damage the monitor, invalidate the product warranty or
lead to serious personal injury.
2.2 General Information
The iM3 Vital Signs Monitor (hereinafter called monitor) is designed in accordance with the
international safety requirements in IEC/ EN 60601-1 for medical electrical equipment.
Classification information of this equipment is as follows:
Anti-electroshock Type
Class I equipment and internal powered equipment
Anti-electroshock Degree
SpO2, NIBP, TEMP: BF
Ingress Protection
IPX1
With T2A, TH or F3000 TEMP module: Ordinary
equipment (Sealed equipment without liquid proof)
Degree of Safety in Presence of
Flammable Gases
Not suitable for use in presence of flammable gases
Working System
Continuous operation equipment
2.3 Safety Precautions
To avoid the possibility of injury, observe the following precautions during the operation of the
instrument.
WARNING
1 The monitor must be serviced only by authorized and qualified personnel. EDAN does
not assume any responsibility for damage or injury if modifications or repairs are
carried out by unauthorized personnel.
2 Use and replace the substitutive parts provided or recommended by EDAN only.

Vital Signs Monitor Service Manual Safety Guidance
- 5-
WARNING
3 The service personnel must be familiar with the operation of this monitor. Refer to iM3
Vital Signs Monitor User Manual for details.
4 Perform periodic safety test to ensure patient safety. Safety tests should include
leakage current measurement and insulation testing. It is recommended to perform
the safety test every two years. You are responsible for any requirements specific to
your country.
5 Disconnect the monitor from power before replacing the fuses which are with the
identical specifications.
6 SHOCK HAZARD –Do not remove the top panel cover during operation or while
power is on. The unit cover must be removed only by authorized service personnel.
7 SHOCK HAZARD –Do not attempt to connect or disconnect the power cord with wet
hands. Make sure that your hands are clean and dry before touching the power cord.
8 Accessory equipment connected to the analog and digital interface must be certified
according to the respective IEC/ EN standards (e.g. IEC/ EN 60950 for data
processing equipment and IEC/ EN 60601-1 for medical equipment). Furthermore, all
configurations shall comply with the valid version of the system standard IEC/ EN
60601-1.Anybody that connects additional equipment to the signal input connector or
signal output connector to configure a medical system must ensure that the system
complies with the requirements of the valid version of the system standard IEC/ EN
6060-1. If you have any question, please consult our technical service department or
your local distributor.
9 Do not directly solder the lead wire and the battery terminal.
10 The safe loads of the wall mounting bracket and the trolley are 7.5 kg and 11 kg
respectively. Exceeding the safe load may cause bracket to fail and the device to fall.
CAUTION
1 The device is designed for continuous operation. Avoid splashing water over the
device.
2 Do not operate the device when it is damp or wet.Avoid using the device immediately
after relocating it from a cold environment to a warm and humid environment. If the
monitor gets damp or liquid pours on the monitor, please contact the service
personnel of EDAN.
3 While the battery is charged, used or stored, keep it away from objects or materials
with static electric charges.

Vital Signs Monitor Service Manual Safety Guidance
- 6-
2.4 Explanation of Symbols on the Monitor
1
DEFIBRILLATION-PROOF TYPE BF APPLIED PART
2
TYPE BF APPLIED PART
3
Caution
4
MR Unsafe - Keep away from magnetic resonance imaging
(MRI) equipment
5
Equipotential grounding
6
Power Supply switch
7
SERIAL NUMBER
8
Network port
9
USB (Universal Serial Bus) Connection
10
CE marking
11
AUTHORISED REPRESENTATIVE IN THE
EUROPEAN COMMUNITY
12
Date of manufacture
13
MANUFACTURER
14
Part Number
15
General symbol for recovery/recyclable

Vital Signs Monitor Service Manual Safety Guidance
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16
Disposal method
17
Operating instructions
18
Refer to User Manual
(Background: Blue; Symbol: White)
19
Warning
(Background: Yellow; Symbol & outline: black)
20
Ingress Protection IPX1 (Protected against vertically
falling water drops)
21
Caution: Federal (U.S.) Law restricts this device to sale by
or on the order of a physician.
22
Non-ionizing electromagnetic radiation
23
Output/ Nurse call
24
Chargeable battery
25
Battery check
NOTE:
The service manual is printed in black and white.

Vital Signs Monitor Service Manual Installation
- 8-
Chapter 3 Installation
WARNING
Only qualified service engineers shall install this equipment.
3.1 Environment Requirements
Temperature
Working
0 C ~ +40 C (32 ℉~104 ℉)
With TEMP: +10 C ~ +40 C (50 ℉~104 ℉)
Transport and storage
-20 C ~ +55 C (-4 ℉~131 ℉)
With TH module: -20 C ~ +50 C (-4 ℉~122 ℉)
Humidity
Working
15% RH ~ 95% RH (non-condensing)
Transport and storage
15% RH ~ 95% RH (non-condensing)
Altitude
Working
86 kPa ~ 106 kPa
Transport and storage
70 kPa ~ 106 kPa
NOTE:
1 If the monitor is installed in a cabinet, allow at least 2 inches (5 cm) clearance around
the monitor for proper air circulation; allow adequate accessibility for servicing, and
adequate room for visualization and operation.
2 Ensure the monitor is not subjected to any source of strong electromagnetic
interference, such as CT, radio transmitters, mobile phones base stations, etc.
3 Do not install the monitor in the presence of flammable anesthetics.
4 Keep the environment clean and keep the device away from corrosive medicine.
Prevent the device from vibration, high temperature, humidity and exposure to the
sun.
3.2 Electrical Requirements
Operating Voltage
100 V-240 V ~
Operating Frequency
50 Hz/60 Hz
Input Current
0.7 A-0.35 A
Fuse
T2.5AH, 250VAC

Vital Signs Monitor Service Manual Installation
- 9-
3.3 Safety Requirements
CAUTION
1 SHOCK HAZARD- the power receptacle must be a three-wire grounded outlet. A
hospital grade outlet is required. Never adapt the three-prong plug from the monitor
to fit a two-slot outlet.
2 Do not touch signal input or output connector and the patient simultaneously.
3 Devices connecting with monitor should be equipotential.
4 Do not switch on the monitor until all cables have been properly connected and
verified.
3.4 Installing the Monitor
To install the monitor on a flat surface
Place the monitor on a flat surface. Make sure the surface does not vibrate, and is free of
corrosive medicine and dust.
Figure 3-1 iM3 on a flat surface

Vital Signs Monitor Service Manual Installation
- 10 -
To mount the monitor on wall
To mount the monitor on a wall, you need to order a Wall Mounting Bracket (02.04.243472).
Please refer to that instruction for details of installation.
WARNING
1 The wall mounting bracket can be fixed only on a concrete wall.
2 Make sure the monitor is secure on the wall-mounting bracket before releasing your
hands from the monitor.
3 Make sure the mounting bracket for the wall-mounting bracket is well attached to the
monitor before fixing the monitor to the wall-mounting bracket.
4 Check and make sure all screws on the wall-mounting bracket are secure.
5 Make sure the wall-mounting bracket is firmly fixed to the wall.
To install the monitor on trolley
An Assembling Instruction will be delivered with the Trolley (83.60.261116). Please refer to the
instructions for details of installation.
3.5 Connecting to AC Power Supply
Apply the power cable provided with the monitor. Plug one end of the power cable to the power
socket of the monitor and fasten the connector shoulder with the security lock. Connect the other
end to a grounded 3-phase power output special for hospital use.
NOTE:
Do fasten the connector shoulder with the security lock after plugging the connector into
the socket.

Vital Signs Monitor Service Manual Test and Maintenance
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Chapter 4 Test and Maintenance
4.1 Routine Test
An overall check of the monitor, including safety check and functional check, should be
performed by qualified personnel every 24 months or after service.
4.1.1 Visual Inspection
Before using the monitor:
Inspect the monitor and accessories for obvious signs of damage.
Check the external cables, power socket and power cable.
Do not use the monitor if any damage is detected until the monitor is repaired by the service
engineers of EDAN or professional service personnel of the dealer.
4.1.2 Power- on Test
Switch on the monitor after it is connected to the power source and check:
If the power on/off indicator lights up;
If the alarm indicators flicker and if the alarm tone is heard;
If some images and characters are missing;
If there are bright spots and dark shadows on the LCD screen;
If the waveforms, fonts and symbols displayed on the LCD screen are normal.
If any failure is detected, refer to Section Machine Failures and Display Failures for details.
4.1.3 Key Test
Press the keys on the front panel in turn to check if they work properly. When pressing a key, a
corresponding functional display is supposed to be seen onscreen. Refer to iM3 Vital Signs
Monitor User Manual for details about the key function. The user can move the cursor by turning
the trim knob clockwise or anticlockwise. Also, the user can confirm the operation by pressing
the trim knob.
If any failure is detected, refer to Section Operation Failures for details.
4.1.4 Checking Touch Screen
When the monitor is configured with a touch screen, touch any available keys on the screen to
check if the screen is working properly.
If any failure is detected, refer to Section Operation Failures for details.
4.1.5 Checking Internal Barcode Scanner
When the monitor is configured with internal barcode scanner, switch on the function and scan
barcode to check if monitor can normally display the contents.

Vital Signs Monitor Service Manual Test and Maintenance
- 12 -
If any failure is detected, refer to Section Operation Failures for details.
NOTE:
Prior to use, please ensure the scanner is normally installed and set.
4.1.6 Recording Test
Check if the recorder can perform printing without problem. Also, check if all the printed traces
are correct and clear on the paper.
If any failure is detected, refer to Section Recorder Failures for details.
NOTE:
Please make sure paper is well loaded and the setting is correct before printing.
4.1.7 Alarm Test
Trigger a signal that is higher than the upper limit or lower than the lower limit to activate a
physical alarm. Disconnect one of the accessories from the monitor to activate a technical alarm.
Check if the audible and visible alarms work properly.
If any failure is detected, refer to Section Alarm Failures for defective details.
4.2 Functional Tests and Accuracy Tests
WARNING
1 Functional tests and accuracy tests must only be carried out by qualified service
personnel.
2 If function of the monitor is in question, conduct an overall test on the function and
accuracy of the monitor according to the instructions offered by the manufacturer.
3 A functional tester, such as SpO2simulator and NIBP simulator, can only be used to
assess the parameter consistency and function but not to be used to assess the
clinical measurement accuracy.
A functional check should be performed once possible device malfunction emerges or after
servicing the device.
It is unnecessary to open the device case for functional checks.
4.2.1 SpO2Functional Test
This test checks the function of the SpO2measurement. SpO2simulator is required for this test.
1. Connect the monitor and the SpO2simulator with a SpO2cable.
2. Switch on the monitor and the simulator.
3. Set the SpO2output in the simulator to 70(%).
4. Check for the display on the monitor. A difference within the range of ±2% is reasonable.

Vital Signs Monitor Service Manual Test and Maintenance
- 13 -
4.2.2 NIBP Functional Test
This test checks the function of the NIBP measurement. Tools required for this test are: a NIBP
simulator, a T-fitting, an extension tube and an artificial limb.
1. Connect the NIBP simulator to the monitor.
2. Switch on the monitor and the simulator. Perform calibration prior to using the simulator.
3. Set the patient type both on the monitor and in the simulator to adult; respectively set the
systolic pressure and diastolic pressure (mean pressure) to 255/195(215) mmHg (1
mmHg=0.133 kPa). Start a NIBP measurement.
4. Check for the display on the monitor. A difference within the range of ±8 mmHg is
reasonable.
4.2.3 NIBP Leakage Test
This test checks leakage of the airway and the performance of the NIBP system. See Figure 4-1
for details about tools required.
1. Connect the cuff securely with the socket for NIBP air hole.
2. Wrap the cuff around the cylinder with an appropriate size.
3. Make sure the patient type has been set to Adult.
4. Access Menu > User Maintain by inputting the password ABC. Start a leakage test by
selecting NIBP > Leak Test.
For EDAN module:
The system will automatically inflate the pneumatic system to about 180 mmHg. After 20
seconds to 40 seconds, if system leakage has detected, the system will automatically open the
deflating valve to stop the leak test and indicates NIBP Leak. If no system leakage is detected
when the pneumatic system is inflated to 180 mmHg, the system will perform a deflation to an
approximate value of 40 mmHg and subsequently perform the second phase leak test. After 20
seconds to 40 seconds, the system will automatically open the deflating valve and provide
corresponding indication based on the test result.
For SunTech module:
NOTE:
When applying high pressures; take special care to increase the pressure at a rate that
will not cause unwanted overpressure errors (300 mmHg).
Manually inflate the pneumatic system to approximately 250 mmHg. Start the timer and wait 60
seconds for the pneumatic system to reach its pressure equilibrium point. After the waiting period,
record the pneumatic pressure level (P1) and wait another 60 seconds and record the pneumatic
pressure level again (P2). Safety circuitry on the module only allows the pressure in the
pneumatic system to remain above 10mmHg for 180 seconds. When this safety time limit is
exceeded, the valves will open releasing the pressure. Subtract P2 from P1 and this is the leak
rate per minute.
5. If the alarm information NIBP Leak appears, it indicates that the airway may have air leaks.

Vital Signs Monitor Service Manual Test and Maintenance
- 14 -
In this case, the user should check for loose connection. After confirming secure connections,
the user should re-perform the leakage test. If the failure prompt still appears, please contact
the manufacturer for repair.
Figure 4-1 Diagram for NIBP Leakage Test
4.2.4 NIBP Calibration
NOTE:
1 NIBP calibration must be performed by professional personnel authorized by EDAN.
2 NIBP calibration can influence measurement results. Incorrect operation may
influence measurement accuracy.
Tools required:
•T-fitting
•NIBP extension tubes
•Cylinder (200 ml)
•Manometer (Its measurement range should be within the range of 0 to 300 mmHg; its accuracy
should be more precise than the accuracy of ±0.3 mmHg.)
Procedure:
1. Connect the equipment as shown below.
Manometer
NIBP module
/ Patient
monitor
Cylinder T-fitting
NIBP
extension
tube or hose
Tube
Tube
Figure 4-2 Diagram for NIBP Calibration
2. Access Menu > Factory Maintain by inputting the password 998.
3. Select NIBPCalibration from the menu.
4. Select Calibrate Initialization to start calibration.
5. Adjust the manometer value to 50 mmHg (If different values are required for calibration,
keep the value of the manometer consistent with the one displayed on the monitor). After the
value of the manometer stabilizes, select Calibrate Low.
6. Adjust the manometer value to 250 mmHg (If different values are required for calibration,