ECG1200G Electrocardiograph - User Manual
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Statement
Our company owns all rights to this unpublished work and intends to maintain it as confidential
information. This publication is used only for reference of operation, maintenance, or repair of
our device. No part of this can be disseminated to others.
This document contains proprietary information, which is protected by copyright. All rights
reserved. Photocopy, reproduction or translation of any part in the manual without our company's
written permission is prohibited.
All information contained in this publication is believed to be correct. Our company shall not be
liable for incidental and consequential damages in connection with the furnishing, performance,
or use of this material. This publication may refer to information and protected by copyrights or
patents and does not convey any license under the patent rights of our company, nor the rights of
others.Our company does not assume any liability for arising out of any infringements of patents
or other rights of the third parties.
Content of this manual is subject to change without prior notice.
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Contents
Chapter1 Overview .................................................................................... 1
1.1 Overview ...................................................................................... 1
1.2 Main Technical Specifications ..................................................... 1
Chapter2 Safety Notes ............................................................................... 2
Chapter3 Warranty Regulation ................................................................... 3
Chapter4 Product Main Characteristics ..................................................... 4
Chapter5 Electrocardiograph Panel Sketch Map ....................................... 6
5.1 Each Panel View and its Components .......................................... 6
5.2 Key Definition.............................................................................. 7
5.3 Indicator Light Definition ............................................................ 9
Chapter6 Notes Before Operating ............................................................ 10
Chapter7 Preparations Before Operation ................................................. 11
Chapter8 Notes During Operation ........................................................... 12
Chapter9 Usage of Recording Paper ........................................................ 13
Chapter10 Electrode Placement ............................................................... 14
10.1 Chest Electrode Placement ....................................................... 14
10.2 Limb Electrode Attachment ..................................................... 14
10.3 Check-List for Electrodes and ECG cables .............................. 15
Chapter11 Grounding and Power Connection of Device ......................... 16
Chapter12 Battery Operation Notes ......................................................... 17
Chapter13 Control Panels and Key Instructions ...................................... 18
13.1 Main Interface .......................................................................... 18
13.2 Sampling Interface ................................................................... 19
13.3 Case Information Inputting ...................................................... 20
13.4 Case Management .................................................................... 22
13.5 Case Querying .......................................................................... 22
13.6 Case Review ............................................................................. 23
13.7 Time and Data Settings ............................................................ 24
13.8 System Settings ........................................................................ 25
13.9 Sampling Settings .................................................................... 27
13.10 Print Settings .......................................................................... 28
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13.11 Checking Electrodes Placement ............................................. 30
13.12 About Us ................................................................................ 31
Chapter14 Troubleshooting ...................................................................... 33
14.1 Powering off Automatically ..................................................... 33
14.2 AC Interference ........................................................................ 33
14.3 EMG Interference .................................................................... 33
14.4 Baseline Drift ........................................................................... 33
14.5 Troubleshooting List ................................................................ 34
Chapter15 Maintenance ........................................................................... 36
Appendix .................................................................................................. 37
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Chapter1 Overview
1.1 Overview
12-channel Electrocardiograph is such a kind of electrocardiograph, which gathers 12-lead ECG
signals simultaneously and prints out the ECG waveforms with thermal printing system. It's
major functions are as follows: recording and displaying ECG waveforms in manual/auto ways;
measuring and diagnosing ECG waveform parameters automatically; electrode-off and paper
lack prompt; optional interface languages (Chinese/English); powered either by AC or DC;
selectable rhythm lead to detect abnormal heart rate conveniently ;case database management,
etc.
800*600 dots high resolution LCD screen; 1728 dot wide, it can print 12-channel ECG
waveforms. You can operate either by buttons or touch screen, which is convenient and quick.
1.2 Main Technical Specifications
1.2.1 Environment conditions
Operation
a) Environment temperature: +5~+35
b) Relative humidity: ≤80%
c) Power supply: AC:100V~240V,50/60Hz
DC:14.8V, 3700 mAh rechargeable lithium battery
d) Atmospheric pressure: 86kPa~106kPa
Transportation and Storage
a) Environment temperature: -10~55
b) Relative humidity: ≤95%
c) Atmospheric pressure: 50kPa~106kPa
1.2.2 Input way: Floating and defibrillation protection
1.2.3 Lead: Standard 12 leads(model:BIP0057)
1.2.4 Patient leak current: <10µA
1.2.5 Input impedance: ≥50MΩ
1.2.6 Frequency response: 0.05Hz~150Hz(-3dB~+0.4dB)
1.2.7 Time constant: Time constant≥3.2s
1.2.8 CMRR: >60dB, >100dB( Adding filter)
1.2.9 EMG interference filter: 25Hz/35Hz(-3dB)
1.2.10 Recording way: Thermal printing system
1.2.11 Specification of recording paper: 210mm(W)*20m(L) high-speed thermal paper
1.2.12 Paper speed:
Auto record: 25mm/s, 50mm/s, error:±5%
Rhythm record: 25mm/s, 50mm/s, error:±5%
Manual record:5mm/s, 6.25mm/s, 10mm/s, 12.5mm/s, 25mm/s, 50mm/s, error:±5%
1.2.13 Sensitivity selections: 2.5,5,10,20,40mm/mV, error:±5%. Standard sensitivity is
10mm/mV±0.2mm/mV.
1.2.14 Auto record: Record setup according to auto record format and mode, automatically
changing leads, measuring and analysing.
1.2.15 Rhythm record: record setup according to rhythm record format and mode, automatically
measuring and analysing.
1.2.16 Manual record: record setup according to manual record format, manually changing leads.
1.2.17 Measurement parameters: HR, P-R interval, P Duration, QRS Duration, T Duration, Q-T
interval, Q-Tc, P Axis, QRS Axis, T Axis, R(V5), S(V1), R(V5)+S(V1).
1.2.18 Product safety type: Class I CF applied part; there is defibrillation and pacing protection
circuit in it.
1.2.19 Enduring polarization voltage: ±500mV
1.2.20 Noise level: ≤15µVp-p
1.2.21 Fuse specification: 2 pcs φ5*20mm AC time lag; T1.6A/250V(Power supply 220V)
1.2.22 Size: 340mm(L)*320mm(W)*85mm(H)
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1.2.23 Net Weight: 3.2Kg
Chapter2 Safety Notes
2.1 The power supply should be grounded properly before operation.
2.2 If there are any questions for the integrality of protective grounding cable, the device must be
run with built-in power supply.
2.3 Please pull out power supply plug before changing the fuse.
2.4 This device must be operated by medical staff trained technically and professionally,
preserved by special person.
2.5 The operator must read this instruction manual carefully before operation, and operate the
device according to operation regulations strictly.
2.6 The design of this device has mature consideration of security, but operator should never
neglect attention to device state and patient’s observation.
2.7 Please turn off the device and pull out power supply plug before cleaning and disinfection .
2.8 Please don’t use this device in the presence of flammable anaesthesia gas.
2.9 Don't rub the screen with edge tools or sharp materials.
2.10 If this device is used with cardiac defibrillator or other electric stimulating devices at the
same time, please choose Ag/AgCl chloride chest electrode and ECG lead cables with
defibrillation function. To prevent the metal electrode from burning patients' skin, the disposable
chest electrode should be used if the defibrillation time is over 5seconds. It is better not to use
this device with other electric stimulating devices at the same time. If it is necessary, there must
be professional technician guiding on the scene.
2.11 When connected with this ECG device, others must be Type I equipment complied with
IEC60601-1. Because the total leakage current may injure patient, the monitoring of leakage
current shall be carried out and taken charge by the connected devices.
2.12 Notes concerning ECG waveform measurement and analysis
(1) P wave and Q wave identify are not always reliable with intensive EMG or AC
interference. Neither are the ST segment and T wave with baseline drift.
(2) Winding and unclear end position of S wave and T wave may cause error in measurement.
(3) When R wave is uninspected caused by some leads off or QRS wave low voltage, the
heart rate measurement may deviate greatly from the correct.
(4) In case of QRS low voltage, ECG axis calculation and border-point identify of QRS wave
are not always reliable.
(5) Occasionally, frequent ventricular premature complexes may be identified as dominant
beat.
(6) Merging of versatile arrhythmias may result in unreliable measurement because of the
difficulty in distinguishing P wave in such situation.
(7) This device is designed with auto analysis function, which only analyses the ECG
waveforms it gathers and does not reflect all patient's states. Its analysis results may be not
in accordance with doctor's diagnoses. Therefore, the final conclusion concerning each
patient is up to the doctor basing on analysis results , patient symptoms, and other
examinations together.
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Chapter3 Warranty Regulation
3.1 In normal use, under strict observance of user manual and operation notes, in case of failure,
please contact with our customer service department. Our company has the sales record and
customer archives for each device. The customer has one year's warranty service from the date of
shipping according to the following conditions. To supply all-around and quick maintenance
service for you, please mail the maintenance card to us in time.
3.2 Our company may adopt such ways as guidance, express to company or calling in, etc to
carry out warranty promise.
3.3 Even in warranty period , the following repairs are charged in principle:
3.3.1 Faults or injuries caused by misuse not according to user manual and operation notes.
3.3.2 Faults or injuries caused by dropping accidently when moving after purchasing.
3.3.3 Faults or injuries caused by repair, reconstruction, decomposition, etc not in our company.
3.3.4 Faults or injuries caused by natural disasters such as fire, flood, earthquake, etc.
3.3.5 Faults or injuries caused by improper thermal recording paper.
3.4 The warranty period for accessories and fray parts is half a year. Power cable, recording
paper, operation manual and packing material are excluded.
3.5 Our company is not responsible for the faults of other connected devices caused by the faults
of this device directly or indirectly.
3.6 The warranty regulations are effective only in Chinese Mainland.
3.7 The warranty will be canceled if we find the protection label has been destroyed.
3.8 For charged maintenance beyond warranty period, our company advises to continue using
"Maintenance contract regulation". Please refer to our customer service department for details.
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Chapter4 Product Main Characteristics
4.1 Display with 800*600 dots color LCD, operate either by buttons or touch screen, which is
convenient and quick.
4.2 With high resolution thermal print system (8 dots/mm), it needs no adjustment, and the
record frequency is up to 150Hz.
4.3 Real-time and continuously record clear and exact 12 channel ECG waveforms and remarks.
The remarks include lead sign, sensitivity, paper speed and filter state,etc.
4.4 In auto mode, one button operation to complete record, which will improve work efficiency.
4.5 Full digital filter design, against baseline draft, AC and EMG interference.
4.6 Baseline auto adjusted, optimized print setup, selectable rhythm lead.
4.7 Full touch keyboard control makes operations more convenient and the device status are
clear and easily read through LCD screen.
4.8 The device can be powered either by AC or DC, with built-in lithium rechargeable battery
and auto protection circuit, without operation, auto powering off time can be set up.
4.9 This device can record 300 pieces of ECG and print 180 minutes continually in the best DC
state.
4.10 This device can store more than 1000 cases, more convenient for data review and statistic.
4.11 The figure of whole device is elegant and gliding.
4.12 One button operation to complete printing and storing.
4.13 The device adopts digital signal processor, through AC, DFT and EMG filters to obtain
electrocardiogram of high quality.
4.14 The device has such functions as measuring, analysing and diagnosing conventional ECG
parameters automatically to reduce doctor’s burden and improve work efficiency.
4.15 The device gathers 12-channel ECG signals synchronously and then analyses record modes
of such channels as 12*1, 6*2+1, 6*2, rhythm row12, row10, row8, row6,etc, with multiply
report formats.
4.16 With multiply lead display modes, the device can observe 3,6,or 12 lead real-time
waveforms, and display such information as lead-off and printer paper lack, etc, also with ECG
parameter auto-detected and analysis reports, and record waveforms in auto/manual mode, with
database to store patient information.
4.17 Safety Classification: Class I, defibrillator-proof type CF applied part .
4.18 The degree of protection against entry liquids: IPX0.
4.19 According to the degree of safety of application in the presence of a flammable anaesthetic
mixture with air: Equipment not suitable for use in the presence of the gas above.
4.20 According to the mode of operation: Continuous operation.
4.21 Explanation of some symbols in this device:
~AC AC work mode
OFF Power supply is disconnected
ON Power supply is connected
Equipotential grounding post
Refer to instruction manual/booklet
Type CF applied part with defibrillation protection function
RS232 I/O
USB port
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PATIENT Lead connector
WEEE (2002/96/EC)
This item is compliant with Medical Device Directive 93/42/EEC of
June 14,1993,a directive of the European Economic Community.
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Chapter5 Electrocardiograph Panel Sketch Map
5.1 Each Panel View and its Components
Figure 5-1 Front view
Figure 5-2 Side view
1、Lead Connector
2、USB Port
1
2
3
4
5
Display Screen
Paper Carriage
Button Panel
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3、Power Switch
4、AC Input
5、Grounding Post
Figure 5-3 Bottom view
5.2 Key Definition
Function key: This key is used to turn the device on or off.
Function key: This key is used to begin or stop sampling.
Function key: This key is used to select filter function.
Function key: This key is used to adjust paper speed.
Function key: This key is used to adjust gain.
Function key: This key is used to switch printing modes.
Function key: This key is used to start printing.
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Function key: This key is used to confirm the operation you have done.
Function key: This key is backspace.
Function key: This key is used to switch input methods.
Direction key: Up
Direction key: Down
Direction key: Left
Direction key: Right
Number/Capital and Small letter/Character key: 0/Space/,
Number/Capital and Small letter/Character key: 1/.
Number/Capital and Small letter/Character key: 2/abc/ABC/:
Number/Capital and Small letter/Character key: 3/def/DEF/;
Number/Capital and Small letter/Character key: 4/ghi/GHI/*
Number/Capital and Small letter/Character key: 5/jkl/JKL/%
Number/Capital and Small letter/Character key: 6/mno/MNO/"
Number/Capital and Small letter/Character key: 7/pqrs/PQRS/#
Number/Capital and Small letter/Character key: 8/tuv/TUV/(
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Number/Capital and Small letter/Character key: 9/wxyz/WXYZ/)
5.3 Indicator Light Definition
When green, the light indicates that the device is powered by AC supply;
while red and green, it indicates the battery is charging.
Powering on indicator light.
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Chapter6 Notes Before Operating
6.1 To use the device safely and effectively, you should read the user manual carefully before
operation.
6.2 Notes for installation and storage:
6.2.1 The device shall be keep away from high voltage cable, X-ray equipment, ultrasound
device or electrotherapeutics machine, etc.
6.2.2 Avoid using and storing the device in the places with high air pressure, temperature and
humidity beyond common standard, bad ventilation, excessive dust or salt-alkali gas and
chemical medicine.
6.3 The device should be put on flat place and taken and put lightly when moved. Avoid too
strong vibration and shock.
6.4 AC frequency and voltage value should be in accordance with the requirements to ensure
enough current capacity.
6.5 Please place the device indoor where is easy to be grounded. Do not connect the patient and
his connected cables with other conductors, including ground or beds which can be conducted
well with ground.
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Chapter7 Preparations Before Operation
7.1 Ensure the device is grounded and all the cables are connected reliably.
7.2 Ensure the electrodes, directly connected with patient, are placed correct and reliable.
7.3 If you have selected to purchase UPS, check whether the output voltage is normal or not.
7.4 Electric gel coats should be separated and chest electrodes should not connect with each
other , so as to avoid short circuit.
7.5 AC power cable should not enlace with ECG lead cables.
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Chapter8 Notes During Operation
8.1 Pay attention to the patient and device status at any moment.
8.2 Patient and device can only be connected through ECG lead cables.
8.3 Keep close observation of the patient and device to make sure they are still during operation.
8.4 Turn off the device after using.
8.5 Disconnect the power, and remove the ECG lead cables gently without strong force.
8.6 Properly keep the device and its accessories for operation next time.
8.7 Recording Paper Loading
8.7.1 The device adopts high-speed thermal recording paper with the specification of
210mm(W)*20m(L).
8.7.2 Open the cover of paper carriage, take out the paper roll and install it into recording paper
then load them at the proper position inside the carriage.
8.7.3 Close the cover of paper carriage. It's recommended to leave 2cm paper outside.
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Chapter9 Usage of Recording Paper
9.1 When recording, the device will stop paper trace in case of paper lack, and the LCD screen
will display as the figure below to prompt paper lack.(See Figure 9-1)
Figure 9-1
9.2 It is recommended to use the thermal recording paper specified by our company to ensure
ECG waveforms of good effect. Bad recording paper will result in unclear ECG waveforms,
fading or unsmooth paper trace, etc, even pricking up the device's worn up and shortening the
service cycle of such important components as printer head. Please consult your manufacture or
our company for purchasing this recording paper.
9.3 High temperature, humidity or direct sunniness may all be the causes for recording paper
failure.The paper ,which will not be used for long, shall be stored in place cool, dry and dark.
9.4 Substance may contaminate surface of the recording paper:
Gel, glue, and half-dry diazo compound copy paper, etc, including their organic solvent.
9.5 Substance may cause the waveforms to disappear:
Soft PVC folders, plastic, etc; demagnetization machine and tape containing plasticizer;
Some fluorescence ink pen and stamp-pad ink,etc.
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Chapter10 Electrode Placement
It is better to attach chest electrodes first, then the limb electrodes.
10.1 Chest Electrode Placement
See Figure 10-1:
Figure 10-1
Attach the chest electrodes to the locations as following:
V1: Fourth inter-costal space at right border of sternum.
V2: Fourth inter-costal space at left border of sternum.
V3: Midway between V2 and V4.
V4: Fifth inter-costal space at left mid-clavicular line.
V5: Left anterior axillary line at the horizontal lever of V4.
V6: Left mid-axillary line at the horizontal lever of V4.
Clean the skin where chest electrodes are to be attached with alcohol, then apply ECG cream to
here around 25mm in diameter and to the edge of chest electrodes, then press and attach the
electrodes to the positions from V1-V6.
Note: Keep in mind that the electrodes’ coming into contact with each other or cream’s
overlap from one position to another is not allowed to avoid short circuit.
10.2 Limb Electrode Attachment
Electrodes should be placed on the soft skin of hands and feet. Clean all the limb electrodes and
the positions where limb electrodes are to be attached with alcohol before applying ECG cream
to them, then firmly attach the electrodes to the positions.(See Figure 10-2)
Figure 10-2
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Note: Screw tightly the knob of ECG cable's plug after it is inserted to the ECG connector.
10.3 Check-List for Electrodes and ECG cables
Electrode Location Electrode Symbol Plug No.
Right Arm RA/R 9
Left Arm LA/L l0
Left Leg LL/F 11
Right Leg RL/N 14
Chest 1 Vl/Cl 12
Chest 2 V2/C2 1
Chest 3 V3/C3 2
Chest 4 V4/C4 3
Chest 5 V5/C5 4
Chest 6 V6/C6 5
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Chapter11 Grounding and Power Connection of Device
Make sure power supply is off, plug the 3-line connector in the device, the other end into power
receptacle which should be center grounded. It is prohibited to use water pipe or other pipeline as
grounding cable. Properly grounded can ensure the safety and reduce the interference of AC and
other electromagnetic wave.
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Chapter12 Battery Operation Notes
12.1 The device is designed with built-in full-sealed and non-maintained rechargeable lithium
battery, also equipped with perfect auto-charging-discharging monitor system. When the device
is connected to AC power supply, the battery will be charged automatically. Battery status will be
displayed on right edge of LCD screen(see 12.4) in powering on state. It needs about 4 hours to
charge the battery full after absolute discharge.
12.2 The device can continuously print for 90 minutes and work for more than 10 hours in
standby mode when battery is completely charged. When the device is powered by battery, there
will be a battery indicator in LCD screen of the front panel, showing the battery capacity in 5
modes. When the battery capacity is too low for the device to operate, the device will turn off
automatically to avoid forever damage to the battery.
12.3 The battery should be recharged in time after discharged completely. If not used for long,
the battery should be recharged every 3 months, which can extend the life of the battery..
12.4 Seven power status displayed on LCD are showed in the table below:
Note: When charged, the battery icon shifts from f to c.
12.5 When the battery can not be recharged or works no more than 10 minutes after fully
charged, please replace the battery.
Attention:
Do not directly connect the battery polars“+” with “-” by wire, otherwise it might cause
fire hazard.
Avoid placing the battery where fire is present, or there will be explosion hazard.
Please don't disassemble the sealed battery.
No. Indicator Description
a
Unknown status, which is usually displayed within 1 minute after the
device is turned on.
b
Using AC supply
c
Using battery, full power
d
Using battery, capacity : 3/4
e
Using battery, capacity: 1/2
f
Using battery, capacity : 1/4
g
Using battery, low power, it is recommended to recharge the battery or
use AC supply.
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Chapter13 Control Panels and Key Instructions
13.1 Main Interface
See Figure 13-1:
Figure 13-1
Power status:Please refer to 12.4
Function Buttons:
Click to Enter the sampling interface, when powered on, the device will
automatically enter this interface.
Click to enter case management interface, where you can query , modify or delete
case informations
Click to see the sketch map for electrode placement
Date and time settings
System settings
Sampling settings
Funct
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Printing settings, including printing mode, style and content.
About us, displaying information about our company and software
version,etc.
Quick switch: switch function from one to another quickly with these buttons
on the keyboard, and press to set up the function selected.
13.2 Sampling Interface
Select in the main interface or use shortcut key on the keyboard to enter
sampling interface.
Note: Because of the setup about information input time in system settings, it needs to
input case information before sampling (refer to 13.3 Patient Information Input).
Sampling interface provides several lead display modes, including: 3 leads, 6 leads, and 12 leads,
and the following interface displays 12 leads.(See Figure 13-2)
Figure 13-2
Stop sampling: when the device is sampling, you can click the menu button on the
keyboard panel to stop and return to the main interface.
Switch lead display mode: Double click the waveform on the screen to switch display mode
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among 3 leads ,6 leads, and 12 leads.
Lead-off information: In Demo mode, it displays "DEMO ECG", while in sampling mode, it
displays lead-off information detected.
Switch printing mode: when data mode is After Print, with the button on the
keyboard, you can change the printing mode among manual, auto 12*1, auto 6*2+1, auto 6*2,
auto 3*4+2, rhythm 12, rhythm 10, rhythm 8, rhythm 6.
Adjust gain (Sensitivity): With the gain adjusting button on the keyboard, you can
switch among 2.5mm/mV , 5mm/mV , 10mm/mV , 20mm/mV, 40mm/mV .
Adjust paper speed:With the key of speed adjusting button on the keyboard ,you can
adjust paper speed among 5mm/s,6.25mm/s,10mm/s, 12.5mm/s, 25mm/s, 50mm/s.
Switch filter:With the key of filter selection button on the keyboard ,you can switch
filter among no filter, AC, EMG, DFT, AC+EMG, AC+DFT, EMG+DFT, AC+EMG+DFT.
AC: AC Filter
EMG: EMG Filter
DFT: Baseline Filter
Print/Finish Printing: With the printing button on the keyboard, you can begin or
finish the printing operation.
Auto Mode: After starting printing, automatically the system prints and stores synchronous 12
leads waveforms, of which the length is according to related setup in printing settings, and also
according to this to print analysis data and conclusion, then finish printing automatically.
Manual Mode: After starting printing, the user can print different lead instant waveforms by
switching the lead displayed, namely the ECG printed in manual mode is not synchronous and
the data will not be saved. You need to stop printing by pressing again.
During printing process, the printing state and display content mainly include:
Display content Explanation
Process… It is printing.
Waiting… It is finishing printing.
No Paper. Paper lack, the user should restart printing after loading paper.
Print Timeout Communication failure between this system and printing sub-system.
ECGTimeout Communication failure between this system and sampling sub-system.
Low Power Low power, it cannot start printing
13.3 Case Information Inputting
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Figure 13-3
Select [Get] button, you can get the latest information of 10 patients, and the patient information
will be automatically added to the corresponding edit box after selecting it.
Choose any item, by pressing key, the screen keyboard will pop up as follows. Here
click[Caps]button to switch between number/capital letter and number/small letter; press [Space]
to input a space; press [Bkspace] to delete the character input last; press [OK] to confirm input
and exit this interface.(See Figure 13-4)
Figure 13-4
According to the limits of information, the screen keyboard has some character input limits,
which will be showed in gray and are unavailable, as shown in the figure below(See Figure
13-5):
Case information
Function buttons
Input display
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Figure 13-5
Besides, you can select the numbers in control panel to edit, press to switch
among numbers, small and capital letters or character input methods, and press to
delete the character last input. According to the limits to some information, when switching the
input methods, the selected turns to be green and the limited gray and unavailable.
13.4 Case Management
Select the button in main interface to enter the case management interface, as
shown below.(See Figure 13-6)
Figure 13-6
This interface displays all cases stored in the device. The user can select the case needed using
the querying function (Refer to 13.5Case Querying); using editing function to edit and delete any
case informations; besides, you can review the case informations stored(Refer to 13.6 Case
Review).
: Select it, and the case list will turn to the first page .
: Select it, and the case list will turn to the last page .
: Select it, and the case list will turn to the former page .
: Select it, and the case list will turn to the later page .
13.5 Case Querying
Select [Query] in the[advanced] button and the case querying dialogue box shown below will
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pop up.Input the query condition, click [Query], and the expected results will occur. Click
[Clear], and the system will delete all the querying conditions input.(See Figure 13-7)
Figure 13-7
Here, [Cond.And] and [Cond.Or] are matching modes for querying condition ,and only one can
be selected. If you select [Cond.And] ,the displayed querying results have to satisfy all the
conditions input; while for[Cond.Or], they only need to satisfy any conditions input.
Suggestion: In case of multiply cases, it is better to input all decided querying conditions ,
select [Cond.And] to find the corresponding case quickly.
13.6 Case Review
In case management interface, select the case you want to review, click [Review] to pop up the
dialogue box shown below ,which displays case information , here you can edit content, click
[Save] to confirm modification and note it is not reversible.(See Figure 13-8)
Figure 13-8
After ensure the selection, click [Review] to enter the review interface shown below, which is
similar to the gathering interface.(See Figure 13-9)
Execute querying
Return to case management
Clear querying
Querying condition
Matching modes
Save case information
Current
case
informatio
Review current case
Return to case management interface
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Figure 13-9
In this interface, user can switch printing modes by the button ; click to
begin printing.
13.7 Time and Data Settings
In the main interface, select button, and data and time setting dialogue box shown
below will pop up.(See Figure 13-10)
ECG1200G Electrocardiograph - User Manual
25
Figure 13-10
In this interface, user can switch options through , and use to edit option
content.
13.8 System Settings
In the main interface, select button, and system settings dialogue box shown below
will pop up.(See Figure 13-11)
ECG1200G Electrocardiograph - User Manual
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Figure 13-11
Here, click the button[Default], and the system settings will back to default.
Each item, its options and explanation are shown in the table below.
Item Options Explanation
Back-light
30Seconds/1Minute/
2Minutes/5Minutes/
10Minutes/Always On
If there is no operation for the time selected, screen
backlight will be turned off. Select "Always On" to
keep screen backlight on.
Light-degree
[90%degree]/[80%degre
e]/
[70% degree]/[ 50%
degree]
After setting light degree, the screen will display
different backlight strength.
Auto off
[1 minute]/[3 minutes]/
[5 minutes]/[10
minutes]/
[15 minutes]/[30
minutes]/
[60 minutes]/[None]
If there is no operation for the time selected, the
system will power off automatically. Select "None"
and the system will not power off automatically.
Low Power
[Always]/[Only
once]/[None]
When in low power, this can decide the alarm
method.
Filter Freq
[50Hz/35Hz]/[50Hz/25H
z]
/[60Hz/25Hz]/[60Hz/35
Hz]
Set up the parameter compounding of AC Filter
and EMG Filter.
Language [English]/[Chinese] Set up the language displayed.
Hospital Custom Custom the name of hospital
Heartbeat
Sound
[ON]/[OFF] Set the heartbeat sound
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27
K-B Sound On/Off
Select to activate key-press sound, and not select to
dumb it.
Demo Mode On/Off
Select to make the system operate in demo mode,
or in sampling mode.
13.9 Sampling Settings
Select in the main interface, the sampling setting dialogue box will pop up shown
below.(See Figure 13-12)
Figure 13-12
Here, select the button[Default], the sampling settings will go back to the default.
Each item, its options and explanation are shown in the table below.
Item Options Explanation
AC Filter [ON]/[OFF] Set up whether to use AC Filter or not.
EMG Filter
[ON]/[OFF]
Set up whether to use EMG Filter or
not.
DFT Filter [ON]/[OFF] Set up whether to use DFT Filter or not.
Rhythm Lead
[I] / [II] / [III] / [avR] / [avL] /
[avF] / [v1] / [v2] / [v3] / [v4] /
[v5] / [v6]
Set up rhythm lead to use for printing in
rhythm mode.
Show Style
[3 leads]/[6 leads]/[6*2
leads]/[12 leads]
Set up the ECG display mode in screen.
Sort lead [Routine Lead]/[Cabrera Lead]
Switch mode between Routine Lead
and Cabrera Lead
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28
Show Gain
[2.5mm/mV]/[5mm/mV]/[10m
m/mV]/[20mm/mV]
/[40mm/mV]
Set up the ECG gain in screen.
Show Speed
[5mm/s]/[6.25mm/s]/[10mm/s]/[
12.5mm/s]/[25mm/s]/[50mm/s]
Set up ECG sweep speed in screen, but
when printing in auto and rhythm
mode , it does not support 5mm/s,
10mm/s, 12.5mm/s.
Premature(%) 0 ~ 100
The system will use the input value as a
standard of judging premature beat.
Pause Time(ms) 1200 ~ 3000
The system will use the input value as a
standard of judging beat pause.
Tachycardia(bpm
)
0 ~ 250
The system will use the input value as a
standard of judging tachycardia.
Bradycardia(bpm
)
0~99
The system will use the input value as a
standard of judging bradycardia.
13.10 Print Settings
Select the button in the main interface, the printing setting dialogue box will pop up
shown below.(See Figure 13-13)
Figure 13-13
Click the button[Default], the print settings will go back to the default.
Each item, its options and explanation are shown in the table below.
ECG1200G Electrocardiograph - User Manual
29
Item Options Explanation
Print
Mode
[Auto 12*1]/[Auto 6*2+1]
/[Auto 6*2]/[Auto
3*4+2]/[Rhythm 12]
/[Rhythm 10 ]/[Rhythm 8]
/[Rhythm 6]
The selection will be used as the default printing
mode.
Lead
Gain
Smart/Current
The option selected will be used as printing gain
mode. "Smart" means the system will adjust gain
automatically to fit paper height; "Current" means
it will use screen waveform gain as that of
printing.
Auto
Strip
3Sec/4Sec/5Sec
/6Sec/8Sec/10Sec/
15Sec/20Sec/25Sec
The selection will be used as the time for printing
each strip.
Rhyth
m
Strip
10Sec/15Sec/20Sec
/25Sec/30Sec
In printing mode, when selecting rhythm 12,
rhythm 10, rhythm 8, or rhythm 6, the system will
use the time selected as the time for printing each
row waveform.
Avera
ge
QRS
[3*4+Mark]/[3*4]/
[None]
In printing mode, when selecting "Rhythm" Or
"Auto", the system will use the format selected to
print average QRS waveform.
AutoDiag
All/Data
/Conclusion/NonePrint
Printing diagnosis includes data and conclusion,
you can select as your need.
Perio
dic
[per1Min]/[per 2 Min]/[per3Min]
/[per5Min]/[per10Min]/[per20Mi
n]/[per30Min]/[per 60 Min]/[off]
When gathering ECG, the system will activate
printing according to the duration selected. When
printing mode is manual, it will print in "Auto
12*1" mode, or
in the mode currently set .
Print
device [Inside]/[Qutside A4]
choose prints out the ECG waveforms with
thermal printing system or USB external printer.
Print
depth
[depth]/[shallow] Choose wave print depth.
Note: "Auto Strip", "Rhythm Strip", "Average QRS" , "Auto-Diag" , "Periodic" are only
available in auto and rhythm printing mode.
In [the Print Setup] interface, click [Adv-opr] to enter the print settings advanced
interface . as shown below:
ECG1200G Electrocardiograph - User Manual
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Figure 13-14
13.11 Checking Electrodes Placement
Item
Options
Explanation
Auto
Print
[ON]/[OFF]
Not support at present.
Data
pattern
[Begin Print]/[After Print]
Set the print data to the data before pressing
[Print] key or after pressing the key.
Rhythm 1
[I] / [II] / [III] / [avR] /
[avL] / [avF] / [v1] / [v2] /
[v3] / [v4] / [v5] / [v6]
Set the rhythm lead, used for rhythm patterns
lead print.
Rhythm 2
[I] / [II] / [III] / [avR] /
[avL] / [avF] / [v1] / [v2] /
[v3] / [v4] / [v5] / [v6]
Set[Auto 3*4+2] , used for rhythm patterns lead
print.
Conclusion
title
Default is [Conclousions]
words
Set print conclusion title.
Physician [Physician]/[Specialist]
Set the default language of system.
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Select the button in the main interface to view the sketch map of electrodes
placement shown below.(See Figure 13-14)
Figure 13-15
Click 【std 12】to switch the placement sketch map about 12 leads and add 6leads
Click 【return】to exit interface.
13.12 About Us
Select the button in the main interface, the interface shown below will pop up,
which contains information related to this device.(See Figure 13-15)
ECG1200G Electrocardiograph - User Manual
32
Figure 13-16
This interface shows the device name, version number, company name, copyright and our
contact details.
ECG1200G Electrocardiograph - User Manual
33
Chapter14 Troubleshooting
14.1 Powering off Automatically
① Whether or not the battery capacity is nearly exhausted? Battery overdischarge protection
circuit is activated.
② Whether or not AC supply voltage is too high? Overvoltage protection circuit is activated.
③ Whether or not AC interference is too large or fixed knob in lead cable socket is tightened?
Overload protection circuit is activated.
14.2 AC Interference
① Whether or not the device is grounded reliably?
② Whether or not the electrodes or lead cables are connected correctly?
③ Whether or not the electrodes and skin are smeared enough electric gel?
④ Whether or not the metal bed is grounded reliably?
⑤ Whether or not the patient has touched the wall or metal parts of the bed?
⑥ Whether or not the patient has touched other people?
⑦ Whether or not there is high-power electric equipment working nearby? Such as X-ray
machine or ultrasonic device ,etc.
14.3 EMG Interference
① Whether or not the room is comfortable?
② Whether or not the patient is nervous?
③ Whether or not the bed space is narrow?
14.4 Baseline Drift
ECG1200G Electrocardiograph - User Manual
34
① Whether or not the electrode placement is instable?
② Whether or not the electrodes or lead cables are connected reliably?
③ Whether or not the electrodes and patient skin are cleaned and are smeared enough electric
gel?
④ Whether or not it is caused by patient's movement and breath?
⑤ Whether or not the electrodes or leads are in bad connection?
If you can not clear the interference after having taken all the measures above, use filter.
14.5 Troubleshooting List
Phenomenon Cause of failure Remedy
Too large
interference,
disorderly
waveform
1. Grounding cable is not
connected reliably.
2. Lead cables are not connected
reliably.
3. There is AC interference.
4. Patient is nervous and can not
keep quiet.
1. Check lead cables, grounding
cable and power.
2. Do patient treatment well.
Baseline burr
1. AC interference is large.
2. Patient nervous, and EMG
interference is large.
1. Amend the environment.
2. If the bed is made of steel,
replace it.
3. The power cable and lead
cables are not parallel or too
close to each other.
Not regular
waveform, large
up-and-down,
beeline figure
1. Bad electrode conductivity.
2. Battery capacity lack.
3. Bad connection between
electrodes and patient skin.
4. Loose connection between lead
cables and the device's plug.
5. Bad connection between
electrodes and lead cables.
1. Use alcohol of high quality.
2. Clean electrode slices and the
skin below them with alcohol.
3. Charge the battery.
Baseline draft
1. Low power.
2. Patient movement.
1. Charge the battery.
2. Keep patient still.
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Unclear waveform
1. The printer head surface is dirty.
2. The thermal paper problem.
1. In case of power cut, clean
the printer head with alcohol, do
not begin printing until the head
is dry.
2. Replace the thermal print
paper with specified one.
ECG1200G Electrocardiograph - User Manual
36
Chapter15 Maintenance
15.1 Do not open the enclosure of the device to avoid possible electric shock. Any maintenance
and future upgrades to this device must be carried out by personnel trained and authorized by our
company. The repair should be for our company's original components only.
15.2 Please pull out the power plug when it is power cut. When not used for a long period, the
device should be placed where it is shady , cool, and dry, powered on every 3 months.
ECG1200G Electrocardiograph - User Manual
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Appendix
EMC Information
Guidance and manufacturer’s declaration – electromagnetic emission –
for all EQUIPMENT AND SYSTEMS
Guidance and manufacturer's declaration – electromagnetic immunity –
for all EQUIPMENT and SYSTEMS
Guidance and manufacturer’s declaration – electromagnetic immunity
The model ECG1200G Electrocardiograph(ECG) is intended for use in the electromagnetic
environment specified below. The customer or the user of the model ECG1200G
Electrocardiograph(ECG) should assure that it is used in such an environment.
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
± 6 kV contact
± 8 kV air
± 6 kV contact
± 8 kV air
Floors should be wood, concrete
or ceramic tile. If floors are
covered with synthetic material,
the relative humidity should be at
least 30 %.
1
Guidance and manufacturer’s declaration – electromagnetic emission
2
The model ECG1200G Electrocardiograph(ECG) is intended for use in the electromagnetic
environment specified below. The customer or the user of the model
ECG1200GElectrocardiograph(ECG) should assure that it is used in such an environment.
3 Emissions test Compliance Electromagnetic environment - guidance
4
RF emissions
CISPR 11
Group
The model ECG1200G
Electrocardiograph(ECG) uses RF energy only
for its internal function. Therefor, its RF
emissions are very low and are not likely to cause
any interference in nearby electronic equipment.
5
RF emissions
CISPR 11
Class B
6
Harmonic
emissions
IEC 61000-3-2
Class A
7
Voltage
fluctuations /
flicker emissions
IEC 61000-3-3
Complies
ECG1200G Electrocardiograph - User Manual
38
Electrostatic
transient / burst
IEC 61000-4-4
± 2 kV for power
supply lines
± 1 kV for
input/output
lines
± 2 kV for power
supply lines
± 1 kV for
input/output
lines
Mains power quality should be
that of a typical commercial or
hospital environment.
Surge
IEC 61000-4-5
± 1 kV
differential
mode
± 2 kV common
mode
± 1 kV differential
mode
± 2 kV common
mode
Mains power quality should be
that of a typical commercial or
hospital environment.
Voltage dips,
short
interruptions
and
voltage
variations
on power supply
input lines
IEC 61000-4-11
< 5 % UT
(>95 % dip in
UT )
for 0,5 cycle
40 % UT
(60 % dip in UT )
for 5 cycles
70 % UT
(30 % dip in UT )
for 25 cycles
< 5 % UT
(>95 % dip in
UT )
for 5 sec
< 5 % UT
(>95 % dip in UT )
for 0,5 cycle
40 % UT
(60 % dip in UT )
for 5 cycles
70 % UT
(30 % dip in UT )
for 25 cycles
< 5 % UT
(>95 % dip in UT )
for 5 sec
Mains power quality should be
that of a typical commercial or
hospital environment. If the user
of the model ECG1200G
Electrocardiograph(ECG)
requires continued operation
during power mains
interruptions, it is recommended
that the model ECG1200G
Electrocardiograph(ECG) be
powered from an uninterruptible
power supply or a battery.
Power
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency magnetic fields
should be at levels characteristic
of a typical location in a typical
commercial or hospital
environment.
NOTE UT is the a. c. mains voltage prior to application of the test level.
ECG1200G Electrocardiograph - User Manual
39
Guidance and manufacturer’s declaration – electromagnetic immunity –
for EQUIPMENT and SYSTEM that are not LIFE-SUPPORTING
Guidance and manufacturer’s declaration – electromagnetic immunity
The model ECG1200GElectrocardiograph(ECG) is intended for use in the electromagnetic
environment specified below. The customer or the user of the model
ECG1200GElectrocardiograph(ECG) should assure that it is used in such an environment.
Immunity
test
IEC 60601 test
level
Compliance
level
Electromagnetic environment - guidance
Conducted
RF
IEC
61000-4-6
Radiated
RF
IEC
61000-4-3
3 Vrms
150 kHz to 80
MHz
3 V/m
80 MHz to 2,5
GHz
3 V
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the model ECG1200G
Electrocardiograph(ECG) including cables,
than the recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
P
V
d ]
5,3
[1=
P
E
d ]
5,3
[1=
80 MHz to 800
MHz
P
E
d ]
7
[1=
800 MHz to 2,5 GHz
where p is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and d is the recommended separation
distance in metres (m).b
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey,a should be less than the compliance
level in each frequency range.b
Interference may occur in the vicinity of
equipment marked with the following
symbol:
ECG1200G Electrocardiograph - User Manual
40
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic is affected by
absorption and reflection from structures, objects and people.
a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast
cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due
to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured
field strength in the location in which the model ECG1200G Electrocardiograph(ECG) is used
exceeds the applicable RF compliance level above, the model ECG1200G
Electrocardiograph(ECG) should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating
the model ECG1200G Electrocardiograph(ECG).
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM for EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the ECG-1101 Series ECG
The model ECG1200G Electrocardiograph(ECG) is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer or the user of the
model ECG1200G Electrocardiograph(ECG) can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the model ECG1200G Electrocardiograph(ECG) as recommended below,
according to the maximum output power of the communications equipment
Separation distance according to frequency of transmitter
m
Rated
maximum
output of
transmitter
W
150 kHz to 80 MHz
P
V
d ]
5,3
[1=
80 MHz to 800 MHz
P
E
d ]
5,3
[1=
800 MHz to 2,5 GHz
P
E
d ]
7
[1=
0,01 0.12 0.12 0.23
0,1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed above the recommended separation
distance d in metres (m) can be estimated using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
ECG1200G Electrocardiograph - User Manual
41
Disposal: The product must not be disposed of along with other domestic waste. The users must
dispose of this equipment by bringing it to a specific recycling point for electric and electronic
equipment. For further information on recycling points contact the local authorities, the local
recycling center or the shop where the product was purchased. If the equipment is not disposed
of correctly, fines or penalties may be applied in accordance with the national legislation and
regulations.
0123
Contec Medical Systems Co., Ltd.
No. 112 Qinhuang West Street, Economic & Technical Development Zone,
Qinhuangdao, Hebei Province, PEOPLE'S REPUBLIC OF CHINA
Shanghai International Trading Corp. GmbH (Hamburg)
Eiffestrasse 80, 20537, Hamburg, Germany
ECG1200G Electrocardiograph - User Manual
42
Explanations of symbols on unit
Symbol for "applied parts" (the electrodes are type CF applied
parts).
Symbol for "environment protection" - waste electrical products
should not be disposed of with household waste. Please recycle
where facilities exist. Check with your local Authority or retailer for
recycling advice.
Symbol for "manufacturer".
Symbol for "complies with MDD93/42/EEC requirements".
Symbol for "date of manufacture".
Symbol for "European representative".
Symbol for "serial number".
Rev.0.10.14
0123
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