Bionet Cardio 7 User manual

Cardio 7
SERVICE MANUAL
Version 1.01
www.ebionet.com

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Revision History
Edition
Date
Page
Comment
Ver. 1.0
2015-11-26
Initial release
Ver. 1.01
2017-01-20
p. 79
p. 6, 18
p. 17

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- TABLE OF CONTENTS –
Section 1. General Information...............................................................................................5
1-1. Introduction......................................................................................................................................................................5
1-2. Features of the equipment ......................................................................................................................................5
1-3. Equipment description ..............................................................................................................................................6
1-4. System Installation .....................................................................................................................................................16
1-5. Terms of Warranty.......................................................................................................................................................17
1-6. Specification .................................................................................................................................................................17
Section 2. Troubleshooting.....................................................................................................19
2-1. Power.................................................................................................................................................................................19
2-2. Wave Printing ................................................................................................................................................................20
2-3. Diagnosis .........................................................................................................................................................................23
2-4. Filter ....................................................................................................................................................................................24
2-5. Trouble Shooting Guide ..........................................................................................................................................26
Section 3. Adjustment .............................................................................................................32
3-1. LCD Backlight................................................................................................................................................................32
3-2. Lead Fault........................................................................................................................................................................33
3-3. Filter Setting....................................................................................................................................................................34
Section 4. Block Diagram/Description ................................................................................36
4-1. Circuit Block Diagram..............................................................................................................................................36
4-2. Equipment Overview ................................................................................................................................................37
4-3. Size and Weight...........................................................................................................................................................40
Section 5. Disassembly and Assembly................................................................................41
5-1. Module Description ...................................................................................................................................................41
5-2. Internal Cabling...........................................................................................................................................................47
5-3. Disassembly...................................................................................................................................................................50
5-4. Assembly.........................................................................................................................................................................62

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Section 6. Replaceable Parts List and Accessory.............................................................63
6-1. Replaceable Part List................................................................................................................................................63
6-2. Accessory .......................................................................................................................................................................68
Section 7. Connector Pin Assignment .................................................................................70
7-1. Patient Cable Port ......................................................................................................................................................70
7-2. Spirometry Port.............................................................................................................................................................70
Section 8. PCB Part disposition ..............................................................................................71
8-1. Base(Power + Analog) Board ..............................................................................................................................71
8-2. UI Board............................................................................................................................................................................72
8-3. CPU Board.......................................................................................................................................................................73
Section 9. Software Upgrade.................................................................................................74
9-1. Requirement of Upgrading....................................................................................................................................74
9-2 Procedure of Upgrading ..........................................................................................................................................75
9-3. Integration setup .......................................................................................................................................................78

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Section 1. General Information
1-1. Introduction
Cardio 7 is medical equipment with 12 channels to measure and record the patient‟s
ECG.
It provides parameters for diagnosis and automatic diagnosis, but also is effective to
manage the charts of the user as the user can print out the patient‟s information of the
record of patient‟s ECG. It is also possible to manage the digital files by transferring the
stored data to PC connected to the network.
In addition, for the convenience of the user, it is possible to measure ECG, apply the filter,
save the ECG data, extract the parameter, diagnose automatically and print out the
result with only one click.
If a battery (optional accessory) is inserted, it is possible and easy to carry the product for
mobile examination or emergency.
1-2. Features of the equipment
- 12 channels ECG waveform consists of various channels, such as 3ch+1rhythm,
6ch+1rhythm, 12 ch or 3 ch+3rhythm. The result is printed in the A4 size chart paper.
- 1 channel rhythm is recorded for 60 seconds or 10 minutes and printed in A4 sized report
form.
- 12 channel rhythms are printed simultaneously and continuously in real time.
- Measurement parameters such as heart rate, PR interval, QRS duration, QT/QTc, P-R-T
axes required for diagnosis is printed along with ECGs on the output report after
calculating automatically.
- Auto analysis enables over 130 kinds of interpretation results.
- It helps diagnosis as it is possible to print out the result after changing filter setting, signal
size, printing speed, channel composition or rhythm setting of previously saved ECG data.
- It is effective to manage the patient‟s charts, as the user can input and print out the
patient‟s information.
- It is possible to have a built-in battery, which makes it easy for carrying and moving.
- 200 patient‟s data can be saved and transferred to PC through LAN

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1-3. Equipment description
These are the components of the product. Please make sure that the following
basic components and accessories are supplied. Also, please check whether
the components, including accessories are working well.
Basic components and accessories
①Cardio 7 main unit (1 EA): ECG recording machine
②Patient cable (1 EA): It transfers the patient‟s ECG signal from patient‟s body
③Limbs electrode (1 SET): It‟s connected with patient‟s body
④Chest electrode (1 SET): It‟s connected with patient‟s chest
⑤ECG recording paper (1 EA):It‟s for recording the ECG result
⑥Power cable (1 EA): It‟s a lead to connect power
⑦ECG gel (1 EA): It‟s for applying on the patient‟s skin when measuring ECG
③
⑤
①
⑦
⑥
②
④

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Options
①Battery pack (1 EA)
②Hanger (1 EA)
③Cart (1 EA)
Warning
Do NOT disassemble the case of the equipment to avoid the electric shock.
Refer servicing to Bionet Co., Ltd. qualified personnel or your local authorized
dealer.
①
②
③

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Main Unit
▣Top View
①Handle
②Printer door
③Printer door release button
④LCD
⑤Control panel
①
②
①
②
③
④
⑤
③

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▣Front view
①Slide knob (Printer cover opening button)
▣Rear view
①②③
④⑤⑥
①Protective ground terminal
②Power switch
③RJ45 LAN port
④AC power connection part
⑤USB port
⑥Spirometry port
①

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▣Left side view
①
①Handle
▣Right side view
①
①Patient cable connection port

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Initial Screen
After you finished all installation and turn on the power switch, you can see the system
version, the company name, and menu to select „ECG‟ or „SPIROMETER‟ on the screen
To select ECG, locate the menu box on ECG and press the rotary key or touch the
selection box on the screen.
: ECG
: File
: Worklist
: Spirometer

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LCD display
①②③④⑤ ⑥⑦
⑧⑨⑩⑪

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①
ECG recoding mode
②
Heart beats
③
Patient information
④
Barcode
⑤
USB memoy
⑥
or
Wired or Wireless mode
⑦
or
Power(AC) or Battery mode
⑧
ECG waveform - Gain
⑨
ECG waveform - Speed

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Control panel
①②③⑦
④⑤⑥⑧⑨
Push Buttons
①
Print out the rhythm data on A4 size or continuous paper.
②
10sec. and long-term readings (1min., 3min., 5min.,
10min.) are saved and are printed as an output form after
processing.
③
Process the recorded data with or without revision and
print them out.
④
It operates the product in the most frequently used
operation from the ECG diagnosis test to data saving.
⑤
It transfers the test data, or saved data to the server
PC.
⑥
Cancel commands or change into the former mode for
main menu printing.

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Indication lamp
⑦
A light indicator lets you know that the battery is on and
shows your current battery charging status. A red light
indicator lets you know that the battery is charging and a
green light indicator lets you know the batter is fully
charged.
⑧
Green light indicates connection with an AC adapter.
Rotary switch
⑨
Use when navigating or selecting menu items
(Same functionalities can be achieved by touching
menu items on the screen).
AC Power
When AC power is supplied to the equipment, AC power indicator lamp at the
front side is illuminated green and battery is being charged automatically.
When AC power is turned off and system power is turned on, the equipment is
operated from battery power. When battery power in on, battery charge indicator
lamp is illuminated green. When battery power is low, buzzer alarms three times in
series and battery charge indicator lamp is illuminated yellow. In this case, turn the
system power off and connect the AC power source. Then turn the system power on
again.
-Required time for charging : more than 4 hours
- Time to complete full recharge at full discharge: Max. 3 hours
Caution
For the protection of environment, do NOT throw wasted battery away. Please
inquire at the biomedical engineering lab of the hospital and dispose
according to the appropriate procedure to the authorized place.(according to
national regulations)

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1-4. System Installation
Installation precautions
When installing cardio7 system, take the following precautions.
-The equipment should be operated within 5∼40℃temperature and
10∼90％humidity.
-Check the power cord connection and probe should be handled with care.
-Do not plug several power cords in one electric outlet.
-Main unit should be installed on an even, level place.
-Check that the equipment is properly grounded to avoid noise.
-The entire system settings are stored on the internal memory even when system
power is turned off and on again
-Avoid excessive shock or vibration that could result in equipment damage.
-Avoid using in the vicinity of dust and flammable material.
Power cable connection
The equipment operates when the power cable end connect into the Cardio 7 power cord.
Replace the fuse of the equipment if power is not turned on despite that power cord is
connected and battery power is in normal condition. Contact service dept. of Bionet Co.,
Ltd. if the equipment is not operated after replacing fuse.
Caution
For the continuous protection against the fire hazard, the fuse must be changed to
the same type and rate of fuse by technician (T5A 250V).
For the protection of environment, do NOT throw wasted fuse away in a dangerous
place for the example fire hazard
Patient cable connection
-Connect the patient cable into the connection port at the rear of the equipment.
-Connect the limb electrodes to the N, F, R, L lead and chest electrodes to C1, C2, C3,
C4, C5, and C6 of the patient cable.
Recording paper installation
-Printer door open if printer release button at the side of Cardio 7 is pushed in the right.
Place the recording paper with the signal-recording side up and push back to close.

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1-5. Terms of Warranty
-This product is manufactured and passed through strict quality control and
thorough inspection. Compensation standard concerning repair, replacement,
refund of the product complies with “Consumer‟s protection law” noticed by
ministry of finance and economy.
-Cardio 7 is warranted by Bionet Co., Ltd. to be free from defects in material and
workmanship for one year (two years in Europe) from date of purchase.
-Warranty repair or replacement will be made by Bionet Service Center at no
charge for warranty period if properly used under normal condition in
accordance with the instructions for use.
-In the event of a malfunction or failure during warranty period, customer should
inform Bionet Co., Ltd. of the model name, serial number, date of purchase and
explanation of failure of the defective equipment.
1-6. Specification
ECG Leads
Simultaneous 12 leads resting ECG
Recording Channel
3CH+1RHY, 3CH+3RHY, 6CH+1RHY, 12CH,
1CH Long Time(1min, 3min, 5min,10min) and Beat Report
Gain
2.5, 5, 10, 20, Auto (I~aVF: 10, V1~V6: 5) mm/mV
Printing Speed
5, 12.5, 25, 50, 100 mm/sec
Sampling Rate
Analysis Sampling Rate - 500
Digital Sampling Rate - 8,000
Filters
AC (50/60 Hz, -20dB or better),
Muscle (25~35Hz, -3dB or better),
Base line drift (0.1Hz, -3dB or better),
Low pass filter(off, 40Hz, 100Hz, 150Hz)
Display
800 x 480 pixel resolution, 7” Color TFT wide display
12 channels preview, ID, HR, Gain, Speed, Power status
User Interface
Touch screen, Rotary push-knob
Printer Resolution
Thermal print head, Roll Paper
Report paper
- width : A4/Letter 215mm(8.5”)
- length : A4 297 mm (11.7”)
Letter 279mm(11”)
Resolution: 8dot/mm(0.125mm pitch)
Patient data
ID, name, age, gender, height, weight, smoke, department, room
number, race
Basic Measurement
Heart rate, PR, QRS, QT/QTc, P-R-T axis
ECG Data Storage
Internal Storage for 200 ECGs : Built- in memory

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Electrical
Internal noise: 20uV(p-p)max
Input circuit: floating input
Input impedance: More than 10MΩ
Input voltage range: ±5mV
CMRR: Greater than 100dB
DC offset voltage: ≥ ±300mV
Time constant: 3.2 sec
Patient leakage current: < 10uA
Frequency response: 0.05 ~ 150 with in –3dB
Isolated and defibrillation protected
Signal Quality
Control
Pacemaker pulse detection
Lead fault detection
Line Power
Input:100 ~ 240 VAC, 2-1A, 50/60Hz , Output : 15VDC , 4A 60VA
Battery type
Replaceable and rechargeable, Lithium ion , 11.1V , 2600mA
Battery Capacity
360 minutes of continuous operation without recording or
200 ECGs in 12 channel format at 25mm/s and 10mm/mV
with a battery charged during approximately 3 hours from total
discharge(with display off)
Communication
LAN, WIFI(option)
Safety Conformity
Class I, Type CF defibrillation-proof applied part.
Environmental
Operating temperature: 5 ~ 40℃
Operating humidity: 10~90%RH
Atmospheric pressure: 70 ~ 106KPa
Dimensions
300(W) x 299(H) x 123(D) mm , Approx. 3 kg ( Main Body )
Standard Accessory
Patient cable (1 EA), AC Power cord (1 EA),
Limbs electrodes (1 SET), Chest electrodes(1 SET),
ECG chart paper(1 EA),
Options
Rechargeable battery(1 EA),
Cart(1 EA), Hanger(1 EA)

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Section 2. Troubleshooting
2-1. Power
Problem
Solution
Case1.
The Cardio 7
open will turn
on and off
frequently.
Case2.
Power will not
turn on.
< General Checking >
1. Check the power cable is connected with AC Power connection at
the back of the system.
2. Check the power source of the multi-tab with connection to the
power cable. (If power is connected, AC power indicator is lighted.)
3. Check the power switch.
4. Check any of two fuses on the Power Module(SMPS) and on fuse on
the Base board is cut.
If it is, replace Power board.
Case1:
Check if the soldering of J1 on the Base board (SMPS + Base board
Connector) is poor. Re-solder the cable.
● When the Cardio 7 is turned on, the pin no. 8‟s voltage has to be
always 14.6V.
1) Is the pin no. 1/2‟s voltage is 14.6 Yes replace the main board.
2) Is the pin no 1/2‟s voltage is 14.6 No replace the power board.
● When the REC key is pressed,(during printer is working)
1) Pin no. 12‟s voltage has to be changed from 0V to 24V
If not, faulty power board, replace the power board.
2) Pin no. 15‟s voltage has to be changed from 3V to 0V.
If not, faulty CPU, replace the main board.

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2-2. Wave Printing
Problem
Solution
1-1. The wave pattern changes from the flat
line on the left to the wave forms on the
right.
1. If the normal wave patterns show up to
the right of chart as shown in
problem1, 2, diagnosis output print too
early.
2. It takes some time to show the normal
wave patterns.
3. The normal wave patterns will show if
output is requested after the system is
stabilized by showing the HR variance
of ±5 on the LCD display.
4. Check connection of the limbs
electrode and the chest electrode to
the body parts.
5. If used on the dry skin or in the winter
season, connectivity may be degraded.
In that case, used water or ECG gel.
The electrode must be washed after
using ECG gel. Otherwise, the
electrode will be rusted and corroded.
1-2. Some wave patterns are not shown in
V1~6.
* Connection location of the limbs
electrode and the chest electrode
2. The diagnosis is not shown in print.
1. Press the menu key, showing the
overlapped circle and triangle, at the
bottom of the Keypad.
2. Press the right arrow button twice to
select PRN and then press the menu key.
3. Press the left arrow button once to select
DIAG and then press the menu key.
4. Press ESC key from the menu to enter
the basic display and then press '0' to
printout.