Manual de Mitsar-EEG
Manual de Mitsar-EEG
Manual de Mitsar-EEG
Mitsar Co.Ltd.
ELECTROENCEPHALOGRAPHIC PC - CONTROLLED
SYSTEM MITSAR EEG
OPERATION MANUAL
MIRN. 943119. 001 RE
ii
Attention
The information in this document is subject to change without notice. Mitsar Co Ltd. makes
no warranty of any kind with regard to this material, including, but not limited to the implied
warranties of merchantability and fitness for a particular purpose. Mitsar assumes no
responsibility for any errors that may appear in this document. Mitsar makes no commitment
to update or to keep current the information contained in this document.
No part of this document may be copied or reproduced in any form or by any means without
prior written consent of Mitsar Co Ltd.
Mitsar Co Ltd. is an ISO 9001-certified corporation.
In case of any troubles, problems or requests please do not hesitate to contact us:
in writing:
Mitsar Co.Ltd.
Novorossiyskaya str., 21-2,
Saint Petersburg, 194021,
RUSSIA
via E-mail:
info@mitsar.spb.ru
by phone
or FAX:
iii
Limit of Warranty
Misuse, accident, modification, unsuitable physical or operating environment, improper
maintenance, or damage caused by a product for which we are not responsible may void the
warranty. Certain components may have separate warranty periods as stated in the product
user documentation. Consumables are not covered under warranty.
Customer Responsibility
This product and its components will perform reliably only when operated and maintained in
accordance with the instructions contained in this manual, accompanying labels and inserts. A
defective product should not be used. Parts which may be broken or missing or those that are
clearly worn, distorted or contaminated should be replaced immediately with clean, genuine
replacement parts that have been manufactured by or available from Mitsar.
The responsibility of Mitsar for a non-functioning product is limited by the warranty set forth
in this guide. Should repair or replacement of this product become necessary after the
expiration of the warranty, the customer should seek advice from Mitsar prior to such repair
or replacement. If this product is in need of repair, it should not be used until all repairs have
been made and the unit is functioning properly and is ready for use.
The owner of this product has the sole responsibility for any malfunction resulting from
improper use or maintenance, or repair done by anyone other than a qualified Mitsar
representative and from any malfunction caused by any parts that have been damaged or
modified by anyone other than a qualified Mitsar representative.
The owner of this product has the sole responsibility for connection devices to the system not
corresponded to the electrical safety requirements class I, type BF, standards EN 60601-1, EN
60601-2-26, EN 60601-1-1, EN 60601-1-2, EN 60601-1-4 for medical devices.
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If a liquid was poured over/into the device, including leakage of batteries of a type not
recommended by the manufacturer;
9. The present warranty does not include replacement of electrode sockets and battery
cartridge, and replacement of batteries. Such defects may be eliminated at the customers
request against separate charge.
10. The present warranty does not concern equipment not included into the delivery set (see
section 3.1 hereinabove), if not stipulated otherwise by the delivery contract.
11. Guarantee coupons are enclosed.
Safety Summary
Read and follow all WARNINGS, CAUTIONS and NOTES provided in this guide. To avoid
the possibility of injury, damage to your system or data loss, always observe these safety
precautions during system operation.
WARNINGS
Only trained personnel familiar with safety regulations is allowed to operate the EEG system.
Only personnel properly trained to operate the Mitsar-EEG system should use it for patient
testing.
Do not make clinical decision base on Mitsar-EEG system measurement only. Mitsar-EEG
system is auxiliary device that give the additional information about patient state. The
diagnosis should be determined basing on totality of symptoms and measurements.
The personal computer (as a part of Mitsar-EEG system) must not be situated closer than 1.5
m from a patient.
PC, monitor and printer (as a part of Mitsar-EEG system) must be connected to power supply
line only via socket equipped with ground contact.
Do not contact simultaneously to patient and any non medical part of Mitsar-EEG system
such as PC, monitor and printer.
Do not turn on any system power until all cables have been properly connected and verified.
To reduce the risk of patient injury, turn on any system power before beginning of connection
any patient electrodes.
To reduce the risk of patient injury, disconnect all recording and stimulating electrodes from
the system before you turn off system power.
Connect patient electrodes to fully electrically isolated physiological devices only.
Connection to any other devices or external electrical outlets may result in personal injury.
Any devices connected to Mitsar-EEG system should be certified by Mitsar Co LTD. to
provide the conformity of system to requirements for leakage current in accordance with the
standard EN 60601-1-1for medical electrical systems.
Any devices connected to Mitsar-EEG system including electrodes and electrodes positioning
caps should be certified in compliance with domestic standards (Medical Device Directive
(MDD) 93/42/EEC or FDA requirements).
The personal computers are important parts of Mitsar-EEG system but they are delivered
separately. All computers used with Mitsar-EEG system should be certified in compliance
with domestic standards (for example EN 60950 for Europe).
Clean Mitsar-EEG system components with a soft cloth lightly moistened with mild detergent
solution or 70% alcohol solution. The components should be disconnected from power
supply during cleaning.
Disinfect Mitsar-EEG system components with 10 % whiten solution based on chlorine.
vi
CAUTIONS
Proper use of this system depends on careful reading of all instructions and labels.
Turn OFF system power before connecting or disconnecting any system component(s) or
accessories. You may damage the device(s).
Do not disconnect or reconnect any system components or accessories with the system
powered on. You may damage the components.
A power interruption that occurs during a recording session may cause loss of data in that
recording. If you experience frequent power interruptions, Mitsar recommends the usage of
an Uninterruptible Power Supply (UPS) to help prevent power interruptions.
Mitsar amplifiers do not have build in protection from influence of defibrillator!
Do not use Mitsar-EEG system in moist condition. Otherwise you will increase the risk of
electric shock, the device may work incorrectly and you may damage the device.
Do not spill any liquid on any part of Mitsar-EEG system including connectors, batteries
compartment, cables and etc. This will increase the risk of electricity shock and may damage
the device.
If any part of the system require smaller ranges of environmental condition than those defined
in 10.2 of EN 60601-1 (as computers and etc.) whole system shall be used in restricted
environmental condition.
There are no parts inside the EEG system components which should be maintained by user
except the batteries inside Mitsar-EEG-201 amplifiers. Never attempt to repair, disassemble
or reconstruct any unit. A serious electric shock could result if you ignore this precautionary
measure.
Do not autoclave any parts of Mitsar-EEG system.
Do not use acetone for cleaning the components of system.
Continuous impedance checking may need to be disabled if the impedance check signal
interferes with other equipment.
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Equipment labeling
The next symbols are used for Mitsar-EEG system parts labeling.
SN
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Contents
1.
1.
Component
Quantity
1.
1 piece2
2.
1 piece2
3.
The Amplifier Mitsar-EEG-202-1, Model 401xxxx1 with power adapter for medical device.
1 piece2
4.
The Amplifier Mitsar-EEG-202-3, Model 403xxxx1 with power adapter for medical device.
1 piece2
5.
The Amplifier Mitsar-EEG-202-1, Model 404xxxx1 with power adapter for medical device.
1 piece2
6.
The Amplifier Mitsar-EEG-202-3, Model 406xxxx1 with power adapter for medical device.
1 piece2
7.
1 set
3
8.
Advanced software with user manuals for EEG and ERP recording and processing
1 set
9.
1 set
10.
1 set
11.
1 piece
12.
Operation manual
1 piece
13.
1 piece
14.
USB KEY
1 piece
15.
Tripod3
1 piece
3
16.
1 piece
17.
1 piece
18.
19.
1 piece
3,4
1 piece
3,4
20.
1 piece
21.
1 piece
3,4
22.
Printer
1 piece
23.
1 piece
3, 4
24.
1 piece
25.
1 piece
26.
IR light source
27.
Power supply for video camera, camera remote control and IR light source3
28.
1 piece
3
1 piece
1 piece
The description of this model is places below. Here xxxx is a serial number.
The type of amplifiers depends of the customers order.
3
To be delivered at customer order.
4
The configuration or model should be discussed with customer.
2
EEG
recording
ERP
recording
Video EEG
recording
EEG-Base
EEG
EEG+Video
EEG+DB
EEG+DB+Video
+
+
+
+
+
+
+
+
+
+
+
Normative
database
comparison
+
+
2.
2.1. Computers.
The personal computers are important parts of Mitsar-EEG system but they are
delivered separately. All computers and other peripheral devices (as monitors, printers and
etc.) used with Mitsar-EEG system should be certified in compliance with domestic standards
(EN 60950 for Europe).
2.3. Electrodes.
Electrodes and electrodes caps are important component of EEG system but they are
delivered separately. All electrodes and electrodes positioning caps should be certified in
compliance with domestic standards and CE marked for European Union. Mistar Co. Ltd
recommends use the standard electrodes with touch proof connectors, ElectroCap electrode
positioning system (Electro-Cap International Inc., USA) or any compatible electrodes cap .
All electrodes used together with Mitsar-EEG system should be certified. Mitsar Co Ltd. does
not provide the warranties of appropriate quality of EEG recording if not certified or damaged
electrodes are used.
ATTENTION! The usage not certified electrodes can damage the system.
2.6. Switching On
2.9. Transportation.
Turn off the system before transportation.
2.11. Utilization.
The utilization of the system and the batteries should be done in correspondence to the
domestic regulation.
3.
10
EEG channels
19
21
Poly channels
1
1
TTL inputs
2
2
1 to 17.5 Hz
0.65 to 35 Hz
11
10.5. Lower threshold frequency of the Low Cut filter (High Pass filters) at level 0.7:
Model
106xxxx
107xxxx
Hz
0.32 0.06
0.5 0.1
Hz (digital)
1.6 0.32
1.6 0.32
Hz (digital)
5.0 1.0
5.0 1.0
10.6. Upper threshold frequency of the High Cut filter (Low Pass filter) at level 0.7:
Model
106xxxx
107xxxx
Hz
35 3.5
70 7
Hz (digital)
30 3
30 3
Hz (digital)
15 1.5
15 1.5
ATTENTION! The POLY channel is intended for ECG signal input and
representation. As the POLY channel does not comply the requirements of
standard for measuring ECG channel especially due to low time constant
that will result to distortion of the QRS complex, the incoming ECG signal
may not be used for calculation of the ECG parameters and for diagnosing
based on the curve shape. The incoming ECG signal can be used for visual
estimation of the position and for calculation of time delays between the Rwave position and some other EEG waveforms.
12
11.5. Internal noise voltage reduced to input within the range of 0.5 to 15 Hz: not
more than 10 V (p-p).
11.6. Permissible ratio error limits for time domain within the range of 0.2 to 10 s: 5
%.
11.7. Input impedance: not less than 100 M.
12. Average operating time: not less than 8 hours per day.
13. Electrical safety of the Amplifiers complies with the requirements for instruments
with internal power supply, type BF, standards EN 60601-1:, EN 60601-2-26.
14. The EEG system complete with line-powered PC complies with the electrical
safety requirements: class I, type BF, standards EN 60601-1, EN 60601-2-26 and
EN 60601-1-1.
15. Electromagnetic compatibility of the EEG system complies with requirements of
standard EN 60601-1-2.
16. Working condition:
temperature range: +10 to +35C;
moisture range: 25 to 95% (without condensation).
13
14
15
7. The connection cable has the length of 4 m at least for removing the PC from a
patients environment.
3.1.5. Starting up
1. First engaging and testing of the equipment should be carried out by the
manufacturers representative(s) or by personnel specially trained by the manufacturer.
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17
18
Reason
Permanent
disturbance
Temporary
disturbance
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
10
Yes
11
Yes
12
Yes
13
Yes
Yes
Yes
* Necessity of photostimulator grounding depends on the device type and means of connection to the Amplifiers
(regular or optical cable).
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3.1.7. Maintenance
1. It is recommended to take the batteries out the compartment if service interruption
exceeds one month presumably.
2. Exhausted batteries should be replaced by new ones when required. The signs of
batteries exhaust are:
Special warning message about necessity of battery change.
More and more frequent warning No response from ADC or No reply from
the device or Channel faulty.
3. The device should be cleaned by standard means.
Reason
Method of elimination
20
Batteries low.
21
22
23
9. Number of channels
Model
401xxxx
403xxxx
404xxxx
406xxxx
EEG channels
24
24
31
31
Poly channels
8
8
1
1
TTL inputs
2
2
2
2
V
10-300000
10-100000
10-300000
10-100000
Hz
0.35 - 75
0.35 - 75
0.35 - 75
0.35 - 75
10.5. Lower threshold frequency of the Low Cut filter (High Pass filters) at level 0.7:
401xxxx
DC
0.16 0.016 Hz
(digital)
0.5 0.05 Hz
(digital)
1.6 0.16 Hz
(digital)
5.0 0.5 Hz
(digital)
403xxxx
0.16 0.016 Hz
(digital)
0.5 0.05 Hz
(digital)
1.6 0.16 Hz
(digital)
5.0 0.5 Hz
(digital)
404xxxx
DC
0.16 0.016 Hz
(digital)
0.5 0.05 Hz
(digital)
1.6 0.16 Hz
(digital)
5.0 0.5 Hz
(digital)
406xxxx
0.16 0.016 Hz
(digital)
0.5 0.05 Hz
(digital)
1.6 0.16 Hz
(digital)
5.0 0.5 Hz
(digital)
10.6. Upper threshold frequency of the High Cut filter (Low Pass filter) at level 0.7:
24
Model
401xxxx
403xxxx
404xxxx
406xxxx
Hz
150 15
150 15
150 15
150 15
Hz (digital)
70 7
70 7
70 7
70 7
Hz (digital)
30 3
30 3
30 3
30 3
Hz (digital)
15 1.5
15 1.5
15 1.5
15 1.5
25
26
27
3.2.5. Starting up
1. First engaging and testing of the equipment should be carried out by the
manufacturers representative(s) or by personnel specially trained by the manufacturer.
2. The systems operation site.
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The EEG system Mitsar-EEG does not require a special screened camera subject to
absence of closely situated interference source (radio or TV transmitter, power transformer,
radar station, X-ray unit, physiotherapy equipment, etc.).
3. Place the EEG systems components at the site in accordance to safety measures
described herein.
4. Install the Amplifiers unit onto the tripod and install the Amplifiers in a proper
place, adjusting the tripod height. It is not recommended to place the Amplifiers close to
concrete or metal structures or close to power lines; that may cause additional 50/60 Hz stray
pick-up.
5. Connecting the Amplifiers to the computer.
The Amplifiers is connected to the computer via serial port type USB. In order to
connect them insert one connector of the cable into the PCs port and the other plug into the
appropriate Amplifier connector.
The connector at the Amplifiers case is not used for another purpose. Direct the
cables connector properly, it should come into the socket without excessive force.
For correct choice of the PCs connector see the computer users manual.
6. Connect power adapter to appropriate connector of Amplifiers case and to power
source.
7. Methods of installation and use of the software are given in Chapter 6 of this
manual.
After installation of the software carry out trial operation of the system in accordance
to the instructions presented in Chapter 6 of this manual.
8. Recommendations on adjustment of computer.
The present section describes elimination of possible faults during the first starting-up
or reinstallation of the software to a new computer. When similar fault appears during normal
operation, the reason will likely be another.
All the activities described hereinafter should be executed by a qualified computer
expert only. The actions of an inexperienced user may cause not repairable damage to the
computer.
After switching the device on the signal comes to input for 1 to 10 seconds, after that
the input disconnects and the device switches off.
In this case you have to carry out the following procedures (for PCs equipped with
processors Celeron, Pentium III or higher):
a) Enter program CMOS Setup while starting up the computer;
b) Enter the following settings (names may vary depending on a motherboards type):
Virus Warning Disabled
Power Management disable Energy Saving function
29
Usage of the software is described in the user manual included in the set of delivery of
the system.
2. Reference input connectors.
Reference input connectors (A1 and A2) may be connected by the Amplifiers internal
switch at the software command.
In case if input connectors A1 and A2 are connected it is possible to use as ear average
referent: (A1+A2)/2 or as independent referent used instead of ear (parietal, frontal, etc.)
position; in this case you may apply one or two reference electrodes.
In case if input connectors A1 and A2 are disconnected it is possible to use as
referents: A1, A2 or (A1+A2)/2; in this case you should apply two reference electrodes.
3. Neutral (ground) input connectors.
For successful EEG recording you must use one or two neutral electrodes. Connectors
for these electrodes are marked N.
If the neutral electrode is disconnected or defective, instead of EEG one can observe,
as usual, a distorted low frequency signal, 50(60) Hz interference or saturated amplifiers with
pencil-beam pattern.
4. EEG exploration features.
The main reason of unsatisfactory operation of the EEG system may lie in sporadic
line 50(60) Hz interferences or high frequency interferences. These interferences may be
caused by various reasons:
The electrodes are contaminated. Follow electrode maintenance instructions enclosed
to electrodes.
Unsatisfactory applying of signal electrodes (additional indication for that is 50(60)
Hz picked up in one or more channels).
Unsatisfactory applying of neutral or reference electrodes (additional indication for
that is strong 50(60) Hz pickup in one or more channels).
The electrodes wires or connectors are damaged.
Powerful electric equipment presents in the neighborhood of the EEG room which
generates strong noise (X-ray installations, physiotherapy equipment, etc.).
Computer grounding is poor or absent.
The Amplifiers to computer connecting cable runs right against the computers
monitor.
There are some individual properties of the patients skin or his/her mental state. In
this case it is necessary to apply the electrodes more thoroughly, to set the patient at rest, to
ask him/her to relax.
A list of reasons causing noises or disturbances during EEG taking is given hereunder:
Reason
Permanent
disturbance
Temporary
disturbance
Yes
Yes
30
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
10
Yes
11
Yes
12
Yes
13
Yes
Yes
Yes
* Necessity of photostimulator grounding depends on the device type and means of connection to the Amplifiers
(regular or optical cable).
31
3.2.7. Maintenance
1. There is no special measure for maintenance of system.
2. The device should be cleaned by standard means.
Reason
Method of elimination
32
4.
33
34
35
ATTENTION! The PCs must not be situated closer than 1.5 m from a
patient.
36
37
38
39
5.
Windows automatically detects the device. Found New Hardware Wizard dialog
box appears.
3. Select No, not this time and then click the Next button
40
4. Select Install from a list or specific location (Advanced) and then click the Next
button
5. Select Search the best driver in these locations, uncheck Search removable media
(floppy, CD-ROM), check Include this location in the search, and then click the
Browse button
41
6. Find USBDRV folder on your installation CD and then click the OK button
7. Click the Next button. Windows will automatically install driver. Windows can ask
you to specify corresponding .inf and .sys file. In this case select ftd2xx.inf and
ftd2xx.sys for Mitsar-EEG-201, models 106xxxx and 107xxxx, and Mitsar-EEG202, models 401xxxx, 403xxxx, 404xxxx and 406xxxx placed into USBDRV folder.
42
43
44
6.
45
Press Browse button if you like to change location of the WinEEG program.
Press Next button to continue installation.
Select type of Setup you prefer. Press Next button to continue installation.
46
Select components you want to install. Dont install Sounds component if you dont
plan to use auditory biofeedback. Dont install Child Database component if you will not
use Normative Database including spectra and ERP. Press Next button to continue
installation.
Type a new folder name if you want. Press Next button to continue installation.
47
48
49
2. Select Video Input Device for Main camera from the corresponding list.
3. Select Video Input from the corresponding list to which the camera is connected.
50
4. Select appropriate Video compressor for Main Camera that will be used for on
line compression of video information. The compressors Microsoft MPEG-4
Video Codec V1 or Microsoft MPEG-4 Video Codec V3 will be the best for
many system configurations. We dont recommend you to use this option with
rather slow computers. Use Source button to specify compression parameters if
corresponding video capture card support on line compression.
5. Select frame rate if it is possible. We recommend use the sampling rate equals to
25 or 30 frames per second.
6. Press button Video format to specify parameters of video format. Usually these
parameters include the resolution of video data. (Specific for video capturing
device).
7. Press button Video Source to specify parameters of video capturing. (Specific for
video camera)
8. Select Audio input device from the corresponding list.
9. Select appropriate Audio compressor that will be used for on line compression of
audio information. The compressors MPEG Layer-3 will be the best for many
system configurations.
10. Turn of audio capturing checking the button Would you like to capture audio?
11. Specify minimal length of block of video data placed into one file using Video
block length field. By another words the old video file will be closed and new file
will be created every specified seconds.
12. Specify parameters for additional camera if it is connected and will be used. The
parameters are specified at the same way as described above (see 2.-7.)
Attention! The video and audio compressors will be available if corresponding codecs
have installed.
Attention! Please specify all parameters of Video format, Video source and Audio
source carefully. The quality of recorded signal will depend on these parameters.
Unfortunately corresponding dialog boxes are unique for each video capture and audio
capture devices. Please look for information about them in corresponding operation manuals.
6.4. Initial equipment preparation for carrying out ERP studies
1. Turn off the computers.
2. Connect computers together by null modem cable.
3. Turn on the computers.
4. Install the PSYTASK program on computer that will be used for presentation of
stimuli. The installation procedure is described in PSYTASK user manual.
5. Run the WinEEG program on computer to that the Amplifier is connected.
6. Run the PSYTASK program on computer that will be used for presentation of stimuli.
7. Run the Setup: Equipment parameters command of WinEEG program. The
following dialog window will displayed at the screen.
51
52
17. Click the Update button. If synchronization COM ports are defined correctly the
progress bar will display a process of transferring of task protocols from the
PSYTASK program to the WinEEG program. Otherwise the WinEEG program will
report that the slave computer doesnt respond.
18. Change synchronization parameters if necessary and repeat steps 15.-17. In some
cases it is necessary to find correct combination of COM ports step by step.
Attention!!! It is necessary to perform steps 15.-17 every time when the list of tasks
or their parameters is changed in PSYTASK program.
Attention!!! PSYTASK program is able to send correct task protocols only. Please be
attentive and check new task protocols before updating list of protocols for the WinEEG
program if they were added.
Attention!!! The procedure of recording and analysis ERP is described in the
WinEEG user manual.
53
7.
54
Remontaging
Digital filtering
Calculating
Mapping
Automatic spike
detection
Statistical
comparison of
power spectra,
coherence, ERP,
event-related
de/synchronization.
55
56
6. PSYTASK program measures the reaction time and task performance parameters
(omission and commission errors) and save them to build-in database for the future
analysis and final report preparation.
For more information how please see the PSYTASK User Manual.
report:
1). Place the electrodes on the patient's head. For a normal investigation 19 electrodes
are placed using the International 10-20 system. Also a "common point" electrode, a "N"
electrode and reference electrodes must be placed.
Common point and reference electrodes are to be placed in any case, whether bipolar
or monopolar montage is used. If EEG is assumed to be recorded in reference to ears two
reference electrodes are placed on the ears. A reference electrode can be placed on the
forehead and connected to A1 or A2 input (the appropriate electrode is provided in the set)
and a corresponding montage is set in the program. EEG signal quality depends on paying
special attention to the placement of common point and reference electrodes.
2) Connect the electrodes to their respective inputs on the front panel of the amplifier
block.
3) Set the electrode impedance checking mode using Recording: Impedance
command. If the impedance value is satisfactory (less than 5 KOhm), close the Control of
Electrode Impedance dialog. Otherwise re-install those electrode(s) showing excessive
impedance.
4) Run the File: New command. - Fill in the patient card, choose a montage and check
it. When these actions are completed successfully, a new EEG window will be displayed on
the screen.
5) Run the Recording: EEG Monitoring command. Visually check the quality of the
live EEG displayed in the new window. If any channel is acquiring EEG poorly, re-install
the corresponding electrode(s). Check EEG acquisition quality using a monopolar montage,
without averaging.
6) Run the Recording: EEG Recording command to start recording signals to a file.
To stop recording, run the Recording: EEG Recording command once more. One fragment
of the EEG will be recorded. Record another fragment if necessary. If photostimulation is
necessary turn the photostimulator on using the Recording: Photostimulation (on/off)
command, wait for the time needed, change the photostimulation frequency or turn the
photostimulator off, and so on. After finishing the photostimulation procedure, stop EEG
recording.
7) Stop EEG acquisition using the Recording: Stop command.
8) Save the newly created EEG file into the database using the File:Save command.
9) Remove the electrodes and let the patient go.
57
ATTENTION! To avoid data loss, do not carry out Step 9 before Step 8.
10) Analyze the newly recorded EEG. (See EEG window chapter of the WinEEG
user manual).
11) Open the Final Report window using the Analysis: Final Report command.
12) Compose the final report and save it to the database using the File: Save
command.
13) Print the final report and illustrative fragments of the EEG using the File: Print
command.
14) Close the WinEEG window using the File: Exit command.
The EEG recorded to the hard disk is the raw one, acquired using monopolar montage
in relation to reference electrodes, with the widest bandwidth. But the EEG displayed on the
screen is reformatted and filtered according to the montage parameters that have been set (see
Setup: Montage List command). The raw EEG data may be reformatted into any montage,
without limitation.
For more information how to do this please see the WinEEG User manual and the
PSYTASK User Manual.
58
8.
DEED OF COMMISSION
Mitsar-EEG-106xxxx,
complies with technical specifications TU 9441-001-25890578-99
Mitsar-EEG-107xxxx,
complies with technical specifications TU 9441-001-25890578-99
Mitsar-EEG-401xxxx,
complies with technical specifications TU 9441-004-52118320-2005
Mitsar-EEG-403xxxx,
complies with technical specifications TU 9441-004-52118320-2005
Mitsar-EEG-404xxxx,
complies with technical specifications TU 9441-004-52118320-2005
Mitsar-EEG-406xxxx,
complies with technical specifications TU 9441-004-52118320-2005
Manufactured on ________________________________
Mitsar Co.Ltd.________________________________
(date, signature, seal)
59
9.
Signature
Position
Name
Commissioned
by:
Assigned by:
60
MITSAR CO.LTD.
WARRANTY COUPON # 1
for repair / replacement within the warranty period
Medical equipment - electroencephalographic system "Mitsar-EEG", serial #
________________, manufacturing date ____________________________________,
Purshased _______________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(date, signature and the sellers seal)
Commissioned ________________________________________
(date, signature and the sellers seal)
Assigned
for
warranty
service
by
__________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
61
62
MITSAR CO.LTD.
WARRANTY COUPON # 2
for repair / replacement within the warranty period
Medical equipment - electroencephalographic system "Mitsar-EEG", serial #
________________, manufacturing date ____________________________________,
Purshased _______________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(date, signature and the sellers seal)
Commissioned ________________________________________
(date, signature and the sellers seal)
Assigned
for
warranty
service
by
__________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
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64
DECLARATION OF CONFORMITY
We
Mitsar Co. Ltd
Novorossiyskaya str. 21-2
194021, St. Petersburg, RUSSIA
65