EKG101T User Manual

Content Chapter1 Main Technical Specifications ................................................................................................. 1 Chapter2 Safety Notes ......................................................................................................................... 2 Chapter3 Warranty Regulation .............................................................................................................. 3 Chapter4 Product Main Characteristics .................................................................................................. 5 Chapter5 Panel Sketch Map.................................................................................................................. 6 Chapter6 Notes before Operating .......................................................................................................... 9 Chapter7 Preparations before Operation ............................................................................................... 10 Chapter8 Notes during Operation ........................................................................................................ 11 Chapter9 Instruction of Recording Paper .............................................................................................. 12 Chapter10 Electrode Placement........................................................................................................... 13 10.1 Chest Electrode Placement ................................................................................................... 13 10.2 Limb Electrode Attachment .................................................................................................. 13 10.3 Check-List for Electrodes and ECG cables ............................................................................. 14 Chapter11 Cleaning and Disinfection ................................................................................................... 15 Chapter12 Precaution for Battery Operation ......................................................................................... 16 Chapter13 Operating Instructions ........................................................................................................ 17 13.1 Main Menu ........................................................................................................................ 17 13.2 Sample Interface ................................................................................................................. 17 13.3 System Settings .................................................................................................................. 20 13.4 Sample Setting.................................................................................................................... 23 13.5 Print Setting ....................................................................................................................... 24 13.6 Analyse Setting ................................................................................................................... 25 13.7 Time Setting ....................................................................................................................... 27 13.8 Archive Management........................................................................................................... 27 13.9 About ................................................................................................................................ 29 13.10 USB Port.......................................................................................................................... 32 13.11 SD Card ........................................................................................................................... 33 Chapter14 Troubleshooting ................................................................................................................ 35 14.1 Powering off Automatically .................................................................................................. 35 14.2 AC Interference .................................................................................................................. 35 14.3 EMG Interference ............................................................................................................... 35 14.4 Baseline Drift ..................................................................................................................... 35 14.5 Troubleshooting List............................................................................................................ 36 Chapter15 Maintenance ..................................................................................................................... 37

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Chapter1 Main Technical Specifications 1.1 Environment conditions Operation a). Environment temperature: +5℃~+35℃ b). Relative humidity: ≤80% c). Power supply: 12V adapter 7.4V, 2000mAh rechargeable lithium battery d). Atmospheric pressure: 860hPa～1060hPa Transportation and Storage a) Environment temperature: -40℃~55℃ b) Relative humidity: ≤95% c) Atmospheric pressure: 500hPa~1060hPa 1.2 Input way: Floating and defibrillation protection 1.3 Lead: Standard 12 leads 1.4 Patient leak current: <10µA 1.5 Input impedance: ≥50MΩ 1.6 Frequency response: 0.05Hz~150Hz (-3dB~0.4dB) 1.7 Time constant: >3.2s 1.8 CMRR: >60dB, >100dB (Adding filter) 1.9 EMG interference filter: 25Hz or 35Hz (-3dB) 1.10 Recording way: Thermal printing system 1.11 Specification of recording paper: 50mm (W)×20m(L) high-speed thermal paper 1.12 Paper speed: Auto record: 6.25mm/s、12.5mm/s、25mm/s、50mm/s, error: ±5% Manual record: 6.25mm/s、12.5mm/s、25mm/s、50mm/s, error: ±5% 1.13 Sensitivity selections : 5、10、20mm/mV, error: ±5%. Standard sensitivity is 10mm/mV±0.2mm/mV 1.14 Auto record: Record setup according to auto record format and mode, automatically changing leads, measuring and analysing. 1.15 Manual record: Record setup according to manual record format, manually changing leads. 1.16 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). 1.17 Product safety type: Class I CF applied part with defibrillation protection. 1.18 Enduring polarization voltage: ±300mV 1.19 Noise level: ≤15µVp-p 1.20 Size: 207mm(L)×96mm(W)×62mm(H) 1.21 Net Weight: 0.5Kg

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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 This device must be operated by medical staff trained technically and professionally, preserved by special person. 2.4 The operator must read this instruction manual carefully before operation, and operate the device according to operation regulations strictly. 2.5 The design of this device has mature consideration of security, but operator should never neglect attention to device status and patient's observation. 2.6 Please turn off the device and pull out power supply plug before cleaning and disinfection . 2.7 Please don't use this device in the presence of flammable anaesthesia gas. 2.8 This device can act on heart directly. 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 5 seconds. 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 GB9706.1-2007. 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 

P wave and Q wave identification are not always reliable with intensive EMG or AC interference. Neither are the ST segment and T wave with baseline drift.

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Winding and unclear end position of S wave and T wave may cause error in measurement.

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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.

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In case of QRS low voltage, ECG axis calculation and border-point identify of QRS wave are not always reliable.

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Occasionally, frequent ventricular premature complexes may be identified as dominant beat.

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Merging of versatile arrhythmias may result in unreliable measurement because of the difficulty in distinguishing P wave in such situation.

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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

2.13 Please don't use this device in the presence of high-power equipment interference. Please keep the device away from emission source such as handset or portable telephone, etc.

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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: 

Faults or injuries caused by misuse not according to user manual and operation notes.

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Faults or injuries caused by dropping accidently when moving after purchasing.

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Faults or injuries caused by repair, reconstruction, decomposition, etc not in our company.

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Faults or injuries caused by natural disasters such as fire, flood, earthquake, etc.

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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. 3.9 The below mthod should be adopted in the process of device mounting or storage: 

Select a room with complete infrastructure.

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Set the device on a flat level worktable. Avoid too strong vibration or impact when moving it.

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A perfect power system and grounding is need in room, otherwise, it may hurt patient.

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If there are any questions for the integrality of protective grounding cable, the device mus t be run with built-in power supply.

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Both AC frequency and voltage should accord with the requirement, and current capability is enough.

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The AC power lines should have 3 cores, otherwise the shock hazard to the patient or operator may be caused.

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Keep device from water, don't use or store it in the place with the air pressure, humidity or temperature over the standard, bad ventilation, the air with sourness, salt, alkali, chemical medicine or too much dust, or the danger of airleak.

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There should be no high-power device, such as high voltage cable, X-ray or ultrasound device or electrotherapeutical device.

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If this device is used with cardiac defibrillator or other electric stimulating devices at the same time, please choose Ag/AgCl chest electrodes.

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If the defibrillation time is over 5 seconds, the one-off chest electrode should be used to prevent the metal electrode from burning patients' skin. It is better not to use this device with other electric stimulating devices simultaneously. If it is necessary, there must be professional technician guiding on the scene.

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In the process of device operation, doctor should be in the operating place all the time and observe the patient carefully. Cut off the power or take off the electrode when necessary to ensure patient's security.

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After operation, turn all of the function state back to the original state before turning off. Take off the electrode gently without forcible pulling. Clean device and all accessories for the next use. 3

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With over loading, amplifier saturation or lead off, device can prompt working failure.

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The device and all accessories should be performed maintenance and overhaul termly (the period should be no longer than half a year).

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Electrocardiograph is a kind of measuring device, should be send to the related department to test termly following local regulation. The test cycle should not be more than 1 year.

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Chapter4 Product Main Characteristics 4.1 High resolution thermal-array output system (8 dots/mm), needs no adjustment. Frequency Response is up to 150Hz. 4.2 Record clear and exact three channels of ECG waveforms and remark real-time and continuously. The remark includes: lead sign, sensitivity, paper speed, filter state, etc. 4.3 In auto mode, one button operation to complete record, which will improve work efficiency. 4.4 Key-press and touch-screen control, more convenient for operation. TFT screen shows the working status, more clear for observation. 4.5 Safety Class: Class I, Type CF applied part with defibrillation protection. 4.6 The power supply includes both AC and DC. This device includes built-in lithium polymer rechargeable battery, 4.7 This instrument can record 450 pieces of ECG waveform and print for 4 hours continually under the best DC state. 4.8 This device can print or store different time length of case to convenient for doctor's case review and statistics. 4.9 You can select print mode, print length, gain, paper speed and report print selection. 4.10 You can select whether to set patient information and to save case when print. 4.11 You can replay the stored case and patient information anytime. 4.12 Exterior SD card, convenient for use. With SD card, the device can store 100 case most. 4.13 With USB2.0 port, working mode can be selected freely between store and synchronization. 4.14 In the process of use, there are clear prompts (such as paper-lack, SD card operating error, etc.) for misoperation, which is convenient for users' operation. 4.15 Digital signal processing, to obtain the ECG of higher quality by AC, DFT and EMG filter. 4.16 Auto-measurement, auto-analyse and auto-diagnosis of regular ECG parameter, reduce doctor’s burden and improve working efficiency. 4.17 The figure of whole device is elegant, gliding, smart and portable, the weight of device is less than 1kg. . 4.18 Classification according to the defense degree of deleterious fluid: IPX0. 4.19 Classification according to the safe degree of the device used under the condition with flammable anaesthesia gas mixed with air (or oxygen, nitrous oxide): unsuited to use. 4.20 Working mode classification: continuous working device. 4.21 Explanation of some symbols in this device: Lead socket filter quick set

Notice! Please refer to the user manual

state of USB connection

CF type with defibrillation protection

SD card has been inserted

equipotential point

no SD card inserted

standby, charging

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Chapter5 Panel Sketch Map 5.1 Each panel view and its components

Front view

Side view

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Side view

Bottom view

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5.2 Key Definition

Function key: Menu/Confirm

Function key: Back/Print

Function key: Power on/Power off/Lead number switch/Confirm

Direction key: up

Direction key: down

Direction key: left

Direction key: right

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Chapter6 Notes before Operating 6.1 Read the user manual carefully before operation to ensure safe and effective use. 6.2 Notes for installation and storage: 

keep the device away from high voltage cable, X-ray equipment, ultrasound device or electrotherapeutics machine, etc.



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 Both AC frequency and voltage value should be in accordance with the requirements and ensure enough current capacity. 6.5 Please place the device indoor where is easy to be grounded. Do not contact the patient and his connected cables with other conductors, including ground or the bed conducted well with ground. 6.6 Clean lead cable with soap and rinsing; sterilize it with alcohol group or aldehyde group. 6.7 Please ensure to run the equipment in the normal temperature, viz. +5℃~+35℃. If the equipment is stored in the higher or lower temperature, please put it in the running environment for 10 min without run, in order to ensure the equipment works normally.

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Chapter7 Preparations before Operation 7.1 Check whether the instrument is grounded properly and cable connection is safe or not. 7.2 Make sure all electrodes connected directly with patient are proper and firm. 7.3 The conductive gel cost should be separate with each other, and it is same for chest electrodes, in order to avoid the short circuit. 7.4 AC power cable can not be enlaced with ECG cable. 7.5 Don't use water pipe or other pipes as earth line. Fine grounding can not only ensure safety, but also reduce AC interference and other electromagnetic interference.

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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 Keep the device and its accessories properly for operation next time. 8.7 Recording Paper Loading

Recording paper loading sketch map 

The device adopts high-speed thermal recording paper with the specification of 50mm(W)×20m(L).

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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.

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Close the cover of paper carriage. It's recommended to leave 2cm paper outside.

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Chapter9 Instruction 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.

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 Advice: Set the chest electrode first, then the limb electrode. 10.1 Chest Electrode Placement See the figure below.

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. At first, clean the positions where limb electrodes are to be attached with alcohol, then applying conductive cream to them.

Note: Screw tightly the knob of ECG cable's plug after it is inserted to the ECG connector.

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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 Cleaning and Disinfection 11.1 Notice (1) please power off the equipment and take off the power line and lead lines before cleaning equipment. (2) During cleaning, never let liquid into the equipment interior. At any events, don't immerge equipment or lead lines into the liquid. (3) Don't use wearing material to clean, in order to avoid electrode damage. (4) Don't leave the cleaning agents on the surface on the equipment or lead lines. (5) Don't use high temperature or high pressure vapour or ionizing radiation to disinfect equipment. (6) Don't use disinfector with chlorine, such as bleaching powder, sodium hypochlorite, etc.. (7) You can use soap liquor or water to clean lead lines and electrodes, use grain alcohol group or acetaldehyde group to sterilize and disinfect.

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Chapter12 Precaution for Battery Operation 12.1 This instrument is designed with knock-down maintenance-free rechargeable lithium battery, and has perfect automatic charge and discharge monitoring system. The instrument recharges the battery automatically when connected to AC power supply. The LCD screen will show the current power state at the top right corner when the instrument turns on (see 12.4). It needs about 4 hours for battery charge after discharge absolutely. 12.2 The device can continuously print for 4 hours after the battery fully charged. When it working, the LCD screen dis plays the s ignal of the battery status in 5 degree. When the pow er of battery is too low to operate, the instrument w ill turn off automatic ally to avoid damage to the battery. 12.3 The battery should be recharged in time after exhausted using. For long storage, the battery is to be recharged every 3 months. The battery life can be extended by doing so. 12.4 Six status of the battery power displayed on LCD as following: No.

Mark

Description

A

Using battery, and full power

B

Using battery, volume : 3/4

C

Using battery, volume: 1/2

D

Using battery, volume : 1/4

E

Using AC power (no battery)

F

Charging

A~D cycle display

Note: When charging, the battery icon shift from Ato D. 12.5 When the battery can not be recharged or works no more than 10 minutes after fully charged, please change the battery. Attention!!! 

Do not directly connect both “+” and “-” polars of battery with wire, otherwise it might cause fire hazard.

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Do not keep it nearby the ablaze area to avoid the danger of explosion.

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Do not open or disassemble the battery by yourself.

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The AC display status may be abnormal at the state of no battery.

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Chapter13 Operating Instructions 13.1 Main Menu

Selected state

unselected state

Fig. 13-1-1 【Operating instructions】 1. Enter corresponding setting interface by touch screen. 2.Use "Up""Down""Left""Right" to move the focus to the wanted submenu and press confirm key or touch to enter corresponding interface. 3.Click

or press return key to return the sample interface.

13.2 Sample Interface The interface is shown as Fig.13-2-1 【Function introduction】 This interface shows waveform. You can modify gain, speed, print mode, waveform display mode (3-lead, 6-lead, 12-lead), in addition print, set filter quickly, check sate of SD-card. Operating instructions are as follows:

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Meditech filter quick setup

Lead informations Time

State of USB State of SD

HR

State of battery

Wave area

buttons Fig. 13-2-1 【Operating instructions】 1.

Enter "Filter Setting" interface as Fig.13-2-2.

Selected state Fig. 13-2-2 (1) You can select AC, EMG or DFT. In two frequency selections of AC or EMG, you can only select one. (2) Click

or [Confirm] key on the panel to save the current settings.

(3) Click

or [Confirm] key on the panel to exit without save.

2.

Click this icon to check the state of SD card, as Fig.13-2-3.

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Fig. 13-2-3 Click 3.

or press confirm key to exit this interface. Click this icon or the menu key to enter the main menu, as Fig.13-2-4.

Fig. 13-2-4 4. 5. 6. 7.

Click this icon or press "UP" and "DOWN" key on the panel to switch speed. Click this icon or press "UP" and "DOWN" key on the panel to switch gain. Click this icon or press "UP" and "DOWN" key on the panel to switch print mode. Click this icon or press "PRINT" key on the panel to print.

Attention: Please ensure that there is paper in the paper carriage, otherwise the prompt of paper-lack will appear, as Fig.13-2-5:

Fig. 13-2-5 Click

and load paper, then print is enabled. 19

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8. Wave display mode switch: glide left and right in the wave area on the screen or press [confirm] key to switch wave display mode as Fig.13-2-6、Fig.13-2-7.

12-lead display

Fig. 13-2-6

6-lead display

Fig. 13-2-7 9. Lead switch: glide up and down in the wave area on the screen to switch leads. 13.3 System Settings The interface is showed as Fig.13-3-1、Fig.13-3-2 【Function introduction】 System settings includes backlight, power alarm, key voice, language, case store, information input, USB-mode, calibrate, etc..

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Page up or down

Fig. 13-3-1

Fig. 13-3-2 【Operating instructions】 You can touch the corresponding button to enter into the setting interface, where you can select the item you want or move the focus on the wanted item, then press [Confirm] or [Right] key to call up the setting menu to set. As Fig.13-3-3

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1. Click

or press [UP] [DOWN] to turn page up and down.

2. Click to save the current settings and exit this interface into the main menu, click exit without save.

to

3. BackLight: select "OFF" and confirm it, the back light will close and device will enter the power -save mode. Then press any a key on the panel to open the back light. 4. Power alarm: when it is enabled, system can alarm every 10s when the charge of battery is less than 5% without AC power source. 5. Key voice: when it is enabled, key can make sound after device is started. Otherwise it is the silence mode. 6. Language: can select Chinese or English. 7. Infor input: when it is enabled, you have to enter the interface "Set Patient" as Fig.13-3-4 before print or save.

keyboard

Fig. 13-3-4 (1) switch setting information by [UP] [DOWN] on the panel. (2) select the item you want to set, then touch the keyboard on the screen or press [Confirm] on the panel and move focus to the keyboard to set current information. Click

to delete the input. Click

to confirm your setting . (3) click

to save the setting and print. Click

to print without save.

Attention: (a) you can click directly or press [LEFT] [RIGHT] to set sex without keyboard. (b) the length of name is no more than 3. (c) age <200. (d) wei(kg)<200 9. USB-mode (1) this item is disabled when USB is not connected as Fig.13-3-2. (2) this item is enabled when USB is connected. "Store" or "Sync" can be selected. 10. Screen Calibrate Click "Carlibrate" to call up the dialog box as Fig.13-3-5

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Fig. 13-3-5 Click "Yes " to enter the calibration interface as Fig.13-3-6.

Fig. 13-3-6 Please operate according to the prompt. If calibration is successful, the prompt "Calibrate OK! " will appear. If failed, "Calibrate fail, please again"will appear. 13.4 Sample Setting The interface is shown as Fig.13-4-1.

Fig. 13-4-1 【Function introduction】 Sample settings include AC filter, EMG filter, DFT filter and demo mode. 【Operating instructions】 23

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The operation is same as system setting. Filter setting can be performed by clicking

on the screen.

13.5 Print Setting The interface is shown as Fig.13-5-1 and13-5-2.

Fig. 13-5-1

Fig. 13-5-2 【Function introduction】 Print setting, prepared for print, includes print mode, auto strip, gain set, speed set, report print set (QRS-temp, case information, parameters, conclusion) 【Operating instructions】 1. Print mode 1x12, 1x12+1, 2x6, 2x6+1, 3x4, manual, store modes including. The operating instruction of each mode is shown as following: 1x12+1、2x6+1: rhythm lead print, rhythm lead can be set in analyse setting. 1x12、2x6、3x4: automatical print Manual: in manual mode you can print waveform according to your need without save. Store: in this mode case can be saved but can't be printed. The interface is shown s Fig.13-5-3 24

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Fig. 13-5-3 Click "Start", system starts to save case. In the process of that, the interface is shown as Fig.13-5-4.

store timing Fig.13-5-4 2. Other settings are same as system setting. Attention: "Auto strip" is defaulted as 3s and can't be changed when there is no SD card. 13.6 Analyse Setting The interface is shown as Fig.13-6-1.

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Fig. 13-6-1 【Function introduction】 Here you can set the items about analyse. 【Operating instructions】 (1) Rhythm lead: click button to call up the interface as Fig.13-6-2

Fig. 13-6-2 Please select the lead you wanted by clicking on the keyboard or pressing keys on the panel. (2) Pause Time : click corresponding button to call up the interface as Fig.13-6-3.

Fig. 13-6-3 26

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Input number according to your need. Its operation is same as above. (3) Operating instructions of other items are same as (2). 13.7 Time Setting The interface is shown as Fig.13-7-1

Fig. 13-7-1 【Function introduction】 Data and time settings. 【Operating instructions】

Select the wanted item, and click

or

to set.

13.8 Archive Management As Fig.13-8-1 and 13-8-2

Fig. 13-8-1

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Fig. 13-8-2 【Function introduction】 Here you can look over all of the stored case, and can replay or delete them. 【Operating instructions】 (1) Click the case directly or press [UP] [DOWN] to examine the case you want. Gray

shows the current page is the first, otherwise it can be clicked to turn the page up.

Gray

shows the current page is the last, otherwise it can be clicked to turn the page down.

Replay:click

or press [Confirm] on the panel to replay waves. Its interface is as Fig.13-8-3. Current time of replay

Case time length

Fig. 13-8-3 : Return "Archive" interface from "Replay" interface. : Click this button to replay waves statically, as Fig.13-8-4.

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Fig. 13-8-4 You can glide screen left and right to check the waves of different times, and glide screen up and down to check the waves of different leads. Current case print and print setting can be performed. The operations are same as sample interface. 13.9 About As Fig.13-9-1:

Fig. 13-9-1 【Function introduction】 The information about device's name, edition, company and copyright is showed in the interface . In this interface press key combination [UP] [DOWN] [LEFT] [RIGHT] [POWER ] in turn to call up the interface as Fig.13-9-2.

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Fig. 13-9-2 You can perform different operations by touching corresponding button on the screen or press the corresponding key on the panel. The details are as follows: (I) Format SD card Click "Format SD" to call up the prompt as Fig.13-9-3 to confirm this operation, in order to avoid misoperation causes the useful data lost.

Fig. 13-9-3 Click "Yea", and the system will format SD card, then you will lost all data in SD card. As Fig.13-9-4.

Fig. 13-9-4 As Fig.13-9-5, this interface shows formatting succeeds.

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Fig. 13-9-5 As Fig.13-9-6, it shows formatting fails.

Fig. 13-9-6 (2) Update Program Click "Update Program", and the prompt as Fig.13-9-7 will appear in order to avoid misoperation.

Fig. 13-9-7 Click "Yes ", if there is no SD card, the prompt as Fig.13-9-8 will appear.

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Meditech Fig. 13-9-8

If there is SD card inserted, update will start, as Fig.13-9-9.

Fig. 13-9-9 System will restart automatically after program update. 13.10 USB Port 【Function introduction】 USB works in store (MASS) or synchronization (HID) mode. In MASS mode, SD card can be read by PC. In HID mode, you can sample real-time case by synchro analyse software. 【Operating instructions】 You can connect the USB port with PC by data line. Select the working mode of USB by the prompt box as Fig.13-10-1.

Fig. 13-10-1 (1) Click

, and you can store or delete the data in electrocardiograph by PC.

(2) Click

, and you can start synchro analyse software to operate electrocardiograph.

(3) Click , the electrocardiograph will enter the main interface. In MASS mode, if you click sample button, the prompt box as Fig.13-10-2 will appear.

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(4) After the synchro analyse software is started, when you need to upload case, click Archive Management function, the interface as Fig.13-10-3 will appear.

Fig. 13-10-3 (5) USB-mode can be selected in system setting. About the details, please refer to chapter13.3. Attention: Data line and synchro analyse software are needed for this function. Please show us before purchase if need. 13.11 SD Card 【Function introduction】 SD card is used to store case and upgrade process. In the process of use, SD card may appear some problems, for those, there are different prompts to instruct users to operation. (1) when the case is being printed in the 1x12、1x12+1、2x6、2x6+1、3x4 mode, if there is no SD card, the dialog box as Fig.13-11-1 will appear to prompt users the case can't be stored if print continues.

Fig. 13-11-1 Click "Yes", print will continue but the case will not be stored. Click "No", print will be canceled, you can insert SD card then continue to print. (2) If you select "Only store" mode, when there is no SD card or SD card operating error, the prompt as Fig.13-11-2 will appear to prompt users that store is disabled because of SD card error..

Fig. 13-11-2 Here click "OK" and insert SD card again, then continue to store case. (3) when system enters Archive Management, the prompt as Fig.13-11-3 appears, please insert SD casd again.

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Fig. 13-11-3 (4) if there is no enough memory in SD card to store this case, the prompt as Fig.13-11-4 will appear.

Fig. 13-11-4 Click "Yes ", and system will exit print, then clean up SD card and print agin. If you need SD card, please show us before purchase.

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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

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? 35

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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

1. Grounding cable is not connected Too large reliably. 1. Check lead cables, grounding interference, 2. Lead cables are not connected reliably. cable and power. disorderly 3. There is AC interference. 2. Do patient treatment well. waveform 4. Patient is nervous and can not keep quiet.

Baseline burr

1. Amend the environment. 2. If the bed is made of steel, 1. AC interference is large. replace it. 2. Patient nervous, and EMG interference is 3. The power cable and lead large. 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 5. Bad connection between lead cable and electrode.

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.

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.

Unclear waveform

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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 check the integrality of lead lines periodically. The damage of any a lead line may cause no display of corresponding lead or all leads. Clean the lead lines with water and soap, and disinfect them with 75% alcohol. 15.3. Please store the electrodes properly. Disinfect them with 75% alcohol and replace them after long use. 15.4 Use the litmusless cleanser to clean the device. Don't immerge the device in the cleanser. 15.5 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. 15.6 Frequent maintenance is necessary for this device. Check it every 6 months and measure it every a year. If the device has stored/used for more than a year, please measure it before use again. 15.7 The schematic diagram and list of key parts of this device can be provided only to the service station or personnel authorized by our company. Transportation and storage 

Transportation: Please carry out according to the regulation of contract.



The device after packed should be stored indoor where temperature is -40℃~+55℃, and relative humidity is less than 95%, without corrosive gas and drafty.

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