Gima PC-900 User manual

VITAL SIGNS MONITOR
PC-900
M35120-GB-Rev.3-09.21
PROFESSIONAL MEDICAL PRODUCTS
Gima S.p.A.
Via Marconi, 1 - 20060 Gessate (MI) Italy
[e-mail] - [e-mail]
www.gimaitaly.com
Made in China
0476
35120

User Manual for Vital Signs Monitor
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This Manual is written and compiled in accordance with the IEC 60601-1 （Medical electrical equipment Part1:
General requirements for safety）and MDD 93/42/EEC. It complies with both international and enterprise standards
and is also approved by State Technological Supervision Bureau. The Manual is written for the current PC-900 Vital
Signs Monitor.
The Manual describes, in accordance with the Vital Signs Monitor’s features and requirements, main structure,
functions, specifications, correct methods for transportation, installation, usage, operation, repair, maintenance and
storage, etc. as well as the safety procedures to protect both the user and equipment. Refer to the respective chapters
for details.
The Manual is published in English and we have the ultimate right to explain the Manual. No part of this manual
may be photocopied, reproduced or translated into another language without the prior written consent. We reserve the
right to improve and amend it any time without prior notice. Amendments will however be published in a new
edition of this manual.
Version of This Manual: Ver 1.7
June 18, 2016
Copyright © 2012 Shenzhen Creative Industry Co., Ltd.
All rights reserved.
Marks in the Manual:
0Warning: must be followed to avoid endangering the operator and the patient.
Attention: must be followed to avoid causing damage to the monitor.
☞Note: some important information and tips about operations and application.
3502-2530004

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Instructions to User
Dear Users,
Thank you very much for purchasing our product. Please read the following information very
carefully before using this device.
Read these instructions carefully before using this monitor. These instructions describe the
operating procedures to be followed strictly. Failure to follow these instructions can cause
monitoring abnormity, equipment damage and personal injury. The manufacturer is NOT
responsible for the safety, reliability and performance issues and any monitoring abnormality,
personal injury and equipment damage due to user’s negligence of the operation instructions.
The manufacturer’s warranty service does not cover such faults.
0WARNING-PACEMAKER PATIENTS. This monitor may continue to count the
pacemaker rate during occurrences of cardiac arrest or some arrhythmias. Do not
rely entirely upon this monitor ALARMS. Keep pacemaker patients under close
surveillance.
0Monitoring a single person at a time.
0The monitor is defibrillator proof. Verify that the accessories can function safely and
normally and the monitor is grounded properly before conducting defibrillation.
0Disconnect the monitor and sensors before MRI scanning. Use during MRI could
cause burns or adversely affect the MRI image or the monitor’s accuracy.
0If you have any doubt to the grounding layout and its performance, you must use the
built-in battery to power the monitor.
0All combinations of equipment must be in compliance with standard of IEC 60601-1-1
for medical electric system requirements.
0Check SpO2probe application site periodically (every 30 minutes) to determine
circulation, positioning and skin sensitivity.
0The SpO2measurement of this monitor may not work for all testees. If stable readings
can not be obtained at any time, discontinue use.
0Do not immerse the monitor or its accessories in liquid to clean.
0Do not use accessories other than those provided/recommended by the manufacturer.
0Each time the monitor is used, check the alarm limits to ensure that they are
appropriate for the patient being monitored.
0The monitor is intended only as an adjunct in patient assessment. It must be used in
conjunction with clinical signs and symptoms.
0When taking the measure of an infant or neonate’s (less than 10 years old) blood pressure, do NOT
operate in the adult mode. The high inflation pressure may cause lesion or even body putrescence.
0The monitor is prohibited from applying to those who have severe hemorrhagic tendency or who
are with sickle cell disease for they may develop partial bleeding when this monitor is used to take

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the blood pressure measurement.
0DO NOT take blood pressure measurement from a limb receiving ongoing transfusion or
intubations or skin lesion area, otherwise, damages may be caused to the limb.
0Continuous use of SpO2sensor may result in discomfort or pain, especially for those with
microcirculatory problem. It is recommended that the sensor should NOT be applied to the same
place for over two hours, change the measuring site periodically if necessary.
0SpO2measuring position must be examined more carefully for some special patient. Do NOT
install the SpO2sensor on the finger with edema or vulnerable tissue.
0To prevent the risk of the short circuit and to ensure the ECG signal quality, the equipment must
be properly grounded.
0Although biocompatibility tests have been performed on all the applied parts, some exceptional
allergic patients may still have anaphylaxis. Do NOT apply to those who have anaphylaxis.
0All the connecting cables and rubber tubes of the applying parts should be kept away from the
patient’scervixtopreventanypossible suffocation of the patient.
0All the parts of the monitor should NOT be replaced at will. If necessary, please use the
components provided by the manufacturer or those that are of the same model and standards as
the accessories along with the monitor which are provided by the same factory, otherwise,
negative effects concerning safety and biocompatibility etc. may be caused.
0DO NOT stare at the infrared light of SpO2sensor when switch it on, for the infrared may do
harm to the eye.
0If the monitor falls off accidentally, please do NOT operate it before its safety and technical
indexes have been tested minutely and positive testing results obtained.
0It is recommended to take the blood pressure measurement manually. The automatic or
continuous mode should be used at the presence of a doctor/nurse.
0Please peruse the relative content about the clinical restrictions and contraindication.
0When disposing of the monitor and its accessories, the local law should be followed.

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Table of Contents
CHAPTER 1 OVERVIEW......................................................................................1
1.1 FEATURES................................................................................................................................1
1.2 PRODUCT NAME AND MODEL................................................................................................. 1
1.3 INTENDED USE.........................................................................................................................1
1.4 SAFETY.................................................................................................................................... 1
1.5 SYMBOLS ON THE MONITOR....................................................................................................2
CHAPTER 2 OPERATING PRINCIPLE..............................................................3
2.1 OVE R A L L STRUCTURE.............................................................................................................. 3
2.2 CONFORMATION.......................................................................................................................3
CHAPTER 3 INSTALLATION AND CONNECTION........................................ 4
3.1 APPEARANCE........................................................................................................................... 4
3.1.1 Front Panel............................................................................................................................................ 4
3.1.2 Side Panel.............................................................................................................................................. 6
3.1.3 Rear Panel............................................................................................................................................. 7
3.2 INSTALLATION..........................................................................................................................8
3.2.1 Opening the Package and Check........................................................................................................... 8
3.2.2 Connecting the Power Supply............................................................................................................... 8
3.2.3 Starting the Monitor.............................................................................................................................. 8
3.3 SENSOR PLACEMENT AND CONNECTION................................................................................. 9
3.3.1 ECG Cable Connection......................................................................................................................... 9
3.3.2 Blood Pressure Cuff Connection......................................................................................................... 11
3.3.3 SpO2Sensor Connection..................................................................................................................... 14
3.3.4 TEMP Transducer Connection............................................................................................................ 16
3.3.5 Loading printing paper........................................................................................................................ 16
3.3.6 Battery Installation.............................................................................................................................. 18
CHAPTER 4 OPERATIONS.................................................................................19
4.1 INITIAL MONITORING SCREEN............................................................................................... 19
4.1.1 Default Display Screen Description.................................................................................................... 19
4.1.2 Operation Instructions......................................................................................................................... 20
4.2 ECG MONITORING SCREEN................................................................................................... 22
4.2.1 Display Screen Description................................................................................................................. 22
4.2.2 Operation Instructions......................................................................................................................... 22
4.3 TREND GRAPH DISPLAY.........................................................................................................23
4.3.1 Screen Description.............................................................................................................................. 23

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4.3.2 Operation Instructions......................................................................................................................... 23
4.4 NIBP LIST SCREEN................................................................................................................24
4.4.1 Operation Instructions......................................................................................................................... 24
4.5 SPO2LIST SCREEN.................................................................................................................25
4.5.1 Operation Instructions......................................................................................................................... 25
4.6 ECG RECALL SCREEN........................................................................................................... 25
4.6.1 Operation Instructions......................................................................................................................... 26
4.7 SETUP MENU SCREEN............................................................................................................26
4.7.1 ECG and Temperature Setup............................................................................................................... 27
4.7.2 SpO2Setup.......................................................................................................................................... 28
4.7.3 NIBP Setup.......................................................................................................................................... 29
4.7.4 Nurse Call............................................................................................................................................ 32
4.7.5 System Setup....................................................................................................................................... 32
4.7.6 Patient Info.......................................................................................................................................... 33
4.7.7 Date/Time............................................................................................................................................ 34
4.7.8 Recover Default Settings..................................................................................................................... 34
4.8 POWER SAVING MODE........................................................................................................... 34
CHAPTER 5 ALARM............................................................................................35
5.1 ALARM PRIORITY...................................................................................................................35
5.2 ALARM MODES.......................................................................................................................35
5.3 ALARM SILENCE.................................................................................................................... 36
5.4 ALARM SETTING.................................................................................................................... 36
5.5 VERIFY ADJUSTABLE ALARM FUNCTION............................................................................... 36
CHAPTER 6 TECHNICAL SPECIFICATIONS................................................ 37
6.1 ECG MONITORING.................................................................................................................37
6.2 TEMP MONITORING.............................................................................................................. 38
6.3 NIBP MONITORING................................................................................................................38
6.4 SPO2MONITORING................................................................................................................ 39
6.5 PULSE RATE MONITORING......................................................................................................39
6.6 DATA RECORDING..................................................................................................................39
6.7 OTHER TECHNICAL SPECIFICATIONS......................................................................................39
6.8 OPERATING ENVIRONMENT................................................................................................... 39
6.9 CLASSIFICATION.................................................................................................................... 40
CHAPTER 7 PACKAGING AND ACCESSORIES........................................... 41

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7.1 PACKAGING........................................................................................................................... 41
7.2 ACCESSORIES......................................................................................................................... 41
CHAPTER 8 MONITORING PARAMETER..................................................... 42
8.1 ECG MONITORING.................................................................................................................42
8.1.1 How to Obtain High Quality ECG and Accurate Heart Rate Value.................................................... 42
8.1.2 Factors affecting ECG signal.............................................................................................................. 43
8.2 NIBP MONITORING................................................................................................................43
8.2.1 Measuring Principle............................................................................................................................ 43
8.2.2 Factors affecting NIBP measuring...................................................................................................... 44
8.2.3 Clinical Limitations............................................................................................................................. 45
8.3 SPO2 MONITORING................................................................................................................ 45
8.3.1 Measuring Principle............................................................................................................................ 45
8.3.2 SpO2 Measurement Restrictions (interference reason)........................................................................ 46
8.3.3 Low SpO2 measuring value caused by pathology reason.................................................................... 46
8.3.4 Clinical Limitations............................................................................................................................. 46
8.3.5 Points to be noted in SpO2 and Pulse Measuring................................................................................ 47
8.4 TEMPERATURE MONITORING................................................................................................. 47
CHAPTER 9 TROUBLESHOOTING..................................................................48
9.1 NO DISPLAY ON THE SCREEN................................................................................................ 48
9.2 EXCESSIVE ECG SIGNAL INTERFERENCE OR TOO THICK BASELINE..................................... 48
9.3 NO BLOOD PRESSURE AND PULSE OXYGEN MEASURES.......................................................48
9.4 BLANK PRINTING PAPER........................................................................................................48
9.5 SYSTEM ALARM..................................................................................................................... 48
CHAPTER 10 MAINTENANCE...........................................................................49
10.1 SERVICE AND EXAMINATION............................................................................................... 49
10.1.1 Daily Examination............................................................................................................................. 49
10.1.2 Routine Maintenance......................................................................................................................... 49
10.1.3 Battery Maintenance......................................................................................................................... 49
10.1.4 Service............................................................................................................................................... 50
10.2 CLEANING,STERILIZATION AND DISINFECTION..................................................................50
10.3 CLEANING,STERILIZATION AND DISINFECTION OF ACCESSORIES......................................51
10.4 STORAGE................................................................................................................................51
10.5 TRANSPORTATION................................................................................................................ 51
CHAPTER 11 APPENDIX.....................................................................................52

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11.1 PROMPT INFORMATION EXPLANATIONS............................................................................... 52
11.2 DEFAULT ALARMING VALUES AND SETUP RANGE.............................................................. 53
11.3 ABBREVIATION OF ARRHYTHMIA......................................................................................... 54
11.4 ACCESSORIES LIST...............................................................................................................55
11.5 INSTRUCTIONS FOR SPO2 PROBE..........................................................................................56
11.6 EMC ....................................................................................................................................61

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Chapter 1 Overview
1.1 Features
Blood Pressure, SpO2and Pulse Rate are displayed by big, bright digital LEDs;
ECG waveform, SpO2plethysmogram and system parameters are displayed on color LCD;
Accurate NIBP measurement with hardware and software over-pressure protection;
Unique SpO2measuring technique ensures sensitive and accurate SpO2,PulseRateand
Perfusion Index measurement;
HR and SpO2trend curve display for last 12, 24 or 96 hours;
12000 groups of NIBP measurements (nonvolatile) can be stored and reviewed by list;
Up to 120-hour ECG waveform can be stored and recalled;
Audible & visible alarm with 3 levels of alarm events;
Nurse call output is available;
With tourniquet function;
NIBP measurement is applicable to adult, pediatric and neonate by patient selection;
Built-in printer is optional to print out waveforms, and text information.
1.2 Product Name and Model
Name: Vital Signs Monitor
Model: PC-900
1.3 Intended Use
This Monitor is a multi-functional instrument designed for monitoring the vital physiological signs of adult
and pediatric patients. With the functions of real-time recording and displaying parameters, such as ECG,
heart rate, non-invasive blood pressure, functional oxygen saturation, body temperature, and so on, it allows
comprehensive analysis of patient’s physiological conditions.
This instrument is applicable for use in hospitals and clinical institutions. The operation should be performed
by qualified professionals only.
1.4 Safety
a) This device conforms to IEC60601-1, electric safety classification: Class I, with Type BF and CF
applied parts.
b) This device can resist against the discharge of defibrillator and the interference of electro-surgical
unit.
c) This device can monitor the patients with pace-maker.
d) DO NOT use this device while the patient is under MRI scanning.

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1.5 Symbols on the Monitor
Adult Patient 7Waveform Freeze
Pediatric Patient Pulse sync indicator
Neonatal Patient Setup Menu
NIBP Start/Cancel ～AC Power
Alarm Silence DC Power
Print Type BF applied part
▲Up Type CF applied part with
defibrillator protection
■OK Warning, refer to User Manual.
▼Down Equal potential terminal
ECG Lead Selection Nurse call output

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Chapter 2 Operating Principle
2.1 Overall Structure
The overall structure of the monitor is shown in Fig. 2.1.
Figure 2.1
2.2 Conformation
PC-900 Vital Signs Monitor is module designed product; it consists of ECG/TEMP module (optional), NIBP
module (optional), SpO2module (optional), main control unit, printer module (optional), display panel, and
power supply block etc. and the related accessories for ECG, NIBP, SpO2and Temperature measurement.
☞According to different needs, you can customize the module configuration by choosing necessary
modules. Therefore, your monitor may not have all the monitoring functions and accessories.
1. ECG/TEMP module measures ECG signal and detects heart rate with ECG lead wires and electrodes,
it also measures temperature with temperature probe.
2. The SpO2module detects and calculates pulse rate and oxygen saturation (SpO2), and provides
plethysmogram and perfusion index as well.
3. The NIBP module performs the measurement of blood pressure by non-invasive way of oscillometric
technology, including the diastolic, systolic and mean arterial pressure. The cuffs are designed for
adult, pediatric and neonate respectively.
4. The main control unit is in charge of LED and LCD display, keyboard input, data storage, printing
and networking function.

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Chapter 3 Installation and Connection
3.1 Appearance
3.1.1 Front Panel
Figure 3.1 Front panel illustration
Description:
1 Alarm indicator
Indicator Alarm Level Alarm Event
Red flashing High priority alarm Exceeding the limits, low battery voltage
Orange flashing Medium priority alarm Leads or probe off
Green light Normal

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2SYS:display systolic pressure value.
3DIA:display diastolic pressure value.
4MAP:When NIBP measurement mode is set to “manual” and “STAT”: Display mean arterial
pressure or measuring time of the latest group of NIBP measurement; they will be displayed
alternately. The format of NIBP measuring time is “hh:mm”. If the tourniquet is in use, the cuff
pressure will be displayed here; When NIBP measurement mode is set to “AUTO”: Display
real-time pressure value during measurement. Countdown time will be displayed in the MAP when
the measurement finishes. Countdown time has two formats (＞1 hour HH: mm; ＜1 hour mm: ss).
Note: two formats to display NIBP value: “×××mmHg” and “××.×kPa”. Refer to section “4.4.2 NIBP
Setup” to set the unit of NIBP value; the conversion relation between “mmHg” and “kPa”:
1mmHg=0.133kPa.
5 HR(priority indicator): if HR indicator is on, it indicates that the numerical value beside is HR
measuring value;
6 Display HR or PR value: when the set of “Setup Menu→System→priority” is “HR”, it shows HR
value here preferentially; if the set is “PR”, PR value will be shown preferentially.
7 PR(priority indicator): if PR indicator is on, it indicates that the numerical value beside is pulse
rate value; Unit: “bpm (beats per minute)”.
If SpO2and NIBP are monitoring at the same time, only the PR value measured through SpO2probe
is displayed here and the PR measuring by NIBP measurement is undergoing and recorded in NIBP
list.
8 SpO2:Display SpO2value; Unit: “%”.
9“
”: Bar-graph of pulse intensity.
10 LCD panel
11 Pulse sync indicator patient category indicator: “” for adult; “ ” for pediatric; “ ”for
neonate; Patient category is selected under sub-menu “Patient Info” within the setup menu.
12 Pulse sync indicator: Cardio-pulse/pulse sync indicator. When HR priority indicator is on, its
flashing is synchronized with heart beat; When PR priority indicator is on, its flashing is
synchronized with pulse.
13 NIBP: start/cancel NIBP measurement.
14 Alarm silence key: Enable/disable alarm silence function. When the alarm silence indicator
on the left of keys is on, it means the system is in alarm silence status and it lasts this status for 2
minutes. When finishing counting down, the system will resume normal alarm status automatically,
if alarm event occurs at this time the alarm sound will be effective again.
0DO NOT silence the audible alarm or decrease its volume if patient safety could be
compromised.

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15 Alarm silence indicator: When it is on, it indicates that the monitor stays in alarm silence status.
16 Print: the internal printer is optional, press this key to print the current measuring data;
17 SUp: shift cursor forward/upward
18 ▇OK: to confirm selection or modification
19 TDown: shift cursor backward/downward
20 Display: short time pressing to shift LCD display modes; longtime pressing to enter into Setup
Menu display screen.
21 7Waveform Freeze: freeze the current displayed waveform.
22 ECG Lead Selection: select ECG leads among I, II, III, aVR, aVL, aVF and V.
23 ～:AC Power indicator
24 :DC Power indicator
AC Power indicator DC Power indicator Descriptions
Status
ON (green) ON (green) this device is using mains power supply
ON (green) ON (orange) this device is using mains power supply and
the battery is being recharged.
OFF ON (green) the battery is being used
OFF ON (orange, blinking) the battery is being used, but battery voltage
is low, the beeper also gives warning.
ON (green) OFF the battery is being recharged while the
device is off
25 :Power button: Press power button for 3 seconds to start the monitor or shut off the monitor.
Note: Short time pressing power button for entering the Power Saving Mode screen, then according to
your need to make the device stay in the power saving mode or exit from power saving mode (this
function is optional and needs hardware support).
26 SpO2:SpO2sensor connector
27 NIBP: NIBP hose connector
28 TEMP: TEMP probe connector
29 ECG: ECG cable connector
3.1.2 Side Panel
The built-in thermal printer is in the left panel. It is easy for user to print waveform and data.

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3.1.3 Rear Panel
Figure 3.2 Rear Panel
Introduction to the rear panel:
1 Handle
2Fan
3Nameplate
CE mark
Serial number
Date of manufacture
Authorised representative in the European community
Manufacturer (including address and date)
Disposal of this device according to WEEE regulations
4“FUSET3.15A”:Fuse holder. Fuse specification: T3.15AL/250V Φ5¯20mm.
5 “AC100~240V” : AC power supply socket
6 Loudspeaker
7 Mounting hole for hanging the monitor
8NET:serial communication port which is used to network with central monitoring system (optional);
9 Nurse-call connector
10 : Equipotential ground terminal

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3.2 Installation
3.2.1 Opening the Package and Check
1. Open the package, take out the monitor accessories from the box carefully and place it in a safe
stable and easy to watch position.
2. Open the accompanying document to sort the accessories according to the packing list.
Inspect the monitor for any mechanical damages
Check all the accessories for any scratch or deformity, especially on connector, wire and probe
parts
☞You can customize the module configuration by choosing necessary modules to meet your own
needs. Therefore, your monitor may not have all the monitoring functions and accessories.
If in doubt, please contact the local dealer or our company in case of any problems. We are to offer
you the best solution for your satisfaction.
3.2.2 Connecting the Power Supply
1. When powered by AC mains power supply:
Make sure that the AC power supply is 100-240VAC, 50/60Hz.
Use the power cable prepared by the manufacturer. Insert one end of it to the power port of
the monitor and the other end to the grounded three-phase power jack.
To eliminate potential differences, the monitor has a separate connection to the equipotential
grounding system. Connect one end of the provided ground cable to equipotential grounding
port on the rear of the monitor, and connect the other end to one point of the equipotential
grounding system.
Caution: ensure that the monitor is grounded correctly.
After the supply mains has been interrupted when power switch remains in the “on” position and is
restored after a period of time that is longer than 30 seconds, the monitor will run by the last
settings when restarting the monitor.
2. When powered by built-in battery
Caution: it’s better to recharge the battery after it is used up, the charging time should be
13~15 hours long.
The provided battery of the monitor must be recharged after transportation or storage. So if
the monitor is switch on without being connected to the AC power socket, it may not work
properly due to insufficient power supply.
3.2.3 Starting the Monitor
The system performs self-test and enters initial display after switching on the monitor, and the orange alarm
indicator blinks to inform that the user can begin operating it.
Check all the applicable functions to make sure that the monitor works normally.
If the battery is applied please recharge it after using the monitor to ensure sufficient power
storage. It will take minimal 8 hours to charge battery from depletion to 90% charge.

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Do not use the device to monitor the patient if there are indications of damage or reminders of
error. Please contact the local dealer or our company.
It’s recommended to delay 1 minute to start it again.
3.3 Sensor Placement and Connection
3.3.1 ECG Cable Connection
ECG measurement is to collect the ECG signal via the ECG electrodes. Electrode connects the patient and the
lead. The lead connects the monitor. The locations of the electrodes are very important for obtaining
accurate ECG signals.
1. Connect the cable to the right-panel connector marked with the ECG icon.
2. Select electrodes to be used. Use only one type of electrode on the same patient to avoid variations
in electrical resistance. For ECG monitoring, it is strongly recommended to use silver/silver chloride
electrodes. When dissimilar metals are used for different electrodes, the electrodes may be subject
to large offset potentials due to polarization. Using dissimilar metals may also increase recovery
time after defibrillation.
3. Prepare the electrode sites according to the electrode manufacturer’s instructions.
4. Skin clean
Clean and dry-abrade skin to ensure low sensor impedance. Mild soap and Water is
recommended as a skin cleanser.
Note: Alcohol is not recommended as a skin cleanser; it leaves a film layer that may cause high
sensor impedance. If alcohol is used, ensure 30-second dry time.
Dry-abrading the skin gently with a dry wash cloth, gauze, or skin preparation product is helpful
to remove the non-conductive skin layer.
The symbol indicates that the cable accessories are designed to have special protection against
electric shocks, and is defibrillator proof.
The locations of the electrode are in the following Figure:
Figure 3.3 Electrode Location
Note: If skin rash or other unusual symptoms develop, remove electrodes from patient.
5. After starting the monitor, if the electrodes become loose or disconnected during monitoring, the
system will display “LEAD OFF” on the screen to alarm the operator.
It might not display ECG wave with 3 leads. The 5 leads should be used to have ECG
wave.

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6 The ECG leads and their corresponding locations are as follows:
Electrode connection 1
(IEC Standard)
Electrode connection 2
(AHA Standard)
Electrode position on body
surface
Color code
Label on lead wire
connection
Color code
Label on lead
wire connection
Red
R
White
RA
Right Arm: The intersection between
the centerline of the right clavicle and
Rib 2
Yellow
L
Black
LA
Left Arm: The intersection between
the centerline of the left clavicle and
Rib 2
Green
F
Red
LL
Left Leg: Left part of the upper
abdomen
Black
N/RF
Green
RL
Right Leg: Right part of the upper
abdomen
White
C
Brown
V
Any of the following location (C1-C6 or
V1-V6) on chest
White/red
C1
Brown
V1
4th Intercostal (IC) space at right
border of sternum
White/Yellow
C2
Brown/Yellow
V2
4th IC space at left border of sternum
White/Green
C3
Brown/Green
V3
Midway between V2 and V4
White/Brown
(blue)
C4
Brown/Blue
V4
5th IC space on left midclavicular line
White/Black
C5
Brown/Red
V5
Left anterior axillary line at the
horizontal level of V4
White/Purple
C6
Brown/Purple
V6
Left midaxillary line at the horizontal
level of V4
Table 3-1
Safety Instructions for ECG Monitoring
Use the same type electrode on a patient. If skin rash or other unusual symptom occurs, remove
electrodes from patient. Do not attach electrodes on the patient with an inflammation of the skin
or scores on skin.
PC-900 Vital Signs Monitor can only be equipped with ECG leads provided by our company; using
ECG leads supplied by other companies may cause improper performance or poor protection
while using defibrillator.
Electric parts of electrodes, leads and cable are forbidden to contact any other conductive parts
(including ground).

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Figure 3.4 Cuff Placement
PC-900 Vital Signs Monitor can resist against defibrillator and electrosurgical unit. Readings may be
inaccurate for a short time after or during using defibrillator or electrosurgical unit.
Transient caused by cable circuitry blocks while monitoring may be similar to the real heartbeat
waveform, as a result resistance heart rate alarm rings. If you put the electrodes and cable in
proper places according to this manual’s instructions and the instructions for using electrode, the
chance of this transient occurring will be decreased.
Besides the improper connection with electrosurgical unit may cause burns, the monitor may be
damaged or arouse deviations of measurement. You can take some steps to avoid this situation,
such as do NOT use small ECG electrodes, choosing the position which is far away from the
estimated Hertzian waves route, using larger electrosurgical return electrodes and connecting with
the patient properly.
ECG leads may be damaged while using defibrillator. If the leads are used again, please do the
functional check first.
When removing the ECG cable, hold the head of the connector and pull it out.
When the monitor is inoperable due to an overload or saturation of any part of the amplifier, it
will prompt “Lead off”to remind operator.
No predictable hazard will be caused by the summation of leakage currents when several item of
monitor are interconnected.
3.3.2 Blood Pressure Cuff Connection
1. Connect the cable to the right-panel connector marked with the NIBP icon.
2. Unveil and wrap the cuff around patient’s upper arm.
Requirements of the cuff:
1) Appropriate cuff should be selected according to the age of the subject. Its width should be 2/3 of the
length of the upper arm. The cuff inflation part should be long enough to permit wrapping 50-80% of
the limb concerned.
Note: The size of the cuff selected should suit the subjects while measuring.
When putting on the cuff, unveil and wrap it around the upper arm evenly to appropriate
tightness.
2) Remember to empty the residual air in the cuff before the measurement is commenced.
3) Locate the cuff in such a way that the “φ” mark is at a location where the clearest pulsation of
brachial artery is observed.
4) The cuff should be tightened to a degree where insertion of one finger is allowed.
5) The lower end of the cuff should be 2cm above the elbow joint.

User Manual for Vital Signs Monitor
12
¾Pressure Accuracy Verification
Pressure Accuracy Verification is a function to inspect the accuracy of pressure measurement by the NIBP
module inside the device. Technician or equipment manager should do pressure accuracy verification
every half year or year in order to check if the pressure measurement still conforms to the requirement of
product performance. If the deviation is beyond the declared specification, it is permitted to return it to
factory for repair or calibration.
Before verification, please connect the monitor to a standard pressure meter as the reference
equipment like a mercury pressure meter
Figure 3.5 Connection of Pressure calibration fixture
Mode 1: The inflation can be activated by Monitor so the pressure will increase automatically until
it exceeds the limit value specified in table A. This pressure limit value depends on the patient type
selection as shown in table A:
Adult 240mmHg
Child 200mmHg
Neonate 120mmHg
Table A
During the inflation, the Monitor will close the deflating valve, and the pressure value will be shown
during the process. If there is no manual deflation operation, the pressure will persist until deflation
by manual operation, so it is necessary to use a manual valve for doing adequate deflation in several
steps to verify the pressure accuracy in the full scale of measurement range.
Mode 2: No automatic inflation by Monitor during the pressure accuracy verification.
Increase the pressure manually by the pumping balloon, and the verification can be done by applying
different pressure value manually. If the increased pressure exceeds the given limit as shown in table
B, the Monitor will deflate automatically because of over-pressure protection.