EEG-1200K Electrocephalograph Product Features

NEUROLOGY
EEG-1200K Electrocephalograph
Product Features & Technical Data
PRODUCT FEATURES
General
The EEG-1200 Electroencephalograph is designed for both clinical and research use.
Fields of application are:
 Routine EEG with common provocation tests like photic stimulation and/or hyperventilation
 EEG monitoring on intensive care units incl. emergency EEG and brain death diagnostic
 Long term monitoring e.g. for epilepsy diagnostics
 Polysomnography
Typical configuration of EEG-1200K for clinical use:
 Main unit incl. isolation transformer
 Shuttle PC with minimum
 Intel Core 2 Duo, 3.0 GHz
 2 GB RAM
 500 GB HDD
 38 channel amplifier JE-921A incl. Stand
 Photic stimulation incl. control unit and Xenon flash lamp
 19 TFT screen
 Accessory kit
 Software package for acquisition and review of EEG waveforms
 Polaris-one database
 Digital video option with camera
 Cart with optional screen and camera mounting
Typical configuration of EEG-1200K for intensive care use:
 Fanless medical grade Panel PC with17 touch screen display
 Dual Core CPU, 1.5 GHz
 2 GB RAM
 160 GB HDD
 38 channel amplifier JE-921A with build in SpO2 and CO2
 Polaris.one database
 Light weight cart designed for ICU environment
 Video option available
 QP-160AK Trend Program with aEEG is recommended for neonatal ICU
(For details of the composition in regards of standard and optional equipment please see technical data section)
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Acquistion
Amplifiers for every requirement
EEG-1200 can be delivered with a wide range of amplifiers, from a 32 channel routine amplifier to a 256 channel
amplifier for intracranial long term recordings.
Multifunction junction box for clinical routine
The electrode junction box JE-921A has 25 EEG, 14 bipolar (7 pairs), 4 DC, SpO2 and CO2 connectors. Its sibling
JE-910A comes with 25 EEG, 4 Extra and 3 bipolar connectors.
PSG junction box (option)
The PSG amplifier JE-912AK with comfortable mini junction box JE-915A is an easy to use and flexible solution for
polysomnographic recordings.
Multi-channel amplifier (option)
The multi channel amplifier JE-120A with up to 256 channels and high speed sampling rates of up to 10 kHz is the
ideal solution for long term recordings or research purposes.
Standard amplifier
PSG amplifier
Mini junction boxes for
JE-921A
JE-912AK incl. JE-915A
multichannel amplifier
Input box converter (standard with multi channel amplifier)
The input box converter QI-122AK provides LAN connectivity so it is easy to expand your EEG system. It connects all
amplifiers to the EEG-1200 via standard CAT5 Ethernet cabling. QI-122AK provides 16 additional DC inputs (multi
channel amplifier only) and connection for photic stimulator.
Wireless input unit, “Air-EEG” WEE-1000K (option)
Up to 64 channels EEG data can be sent to the EEG unit by wireless
transmission. Wireless reduces stress to the patients and lets physicians
monitor the EEG data while the patients are moving freely. All options
(including digital video) of the EEG-1200 are available with the wireless
input unit. Innovative roaming functions and an optional SpO2 probe that
can be connected directly to the telemetry unit makes it suitable for all
kind of EEG- and PSG recordings.
EEG Recording Navigation
You can set several measurements as one routine in advance and record the series of EEG data automatically. You
can program the pattern, recording time, photic stimulation mode and other items for each stage.
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Data review during acquisition
Comparison mode: The EEG Scope function lets you look back into
and review previous epochs of EEG while simultaneously monitoring
current EEG acquisition. One side of a split screen shows previous EEG
epochs and the other side shows the current EEG.
On-line frequency mapping
The EEG data can be shown as a frequency map during acquisition, so
you can easily check the frequency distribution.
Review
Easy to use software interface
EEG-1200 software has an easy to operate graphical user interface
which can be adapted to user requirements. Standard settings provide
an intuitive software layout making it easy to learn even for beginners.
Individual configuration of the software layout allows adapting EEG1200 to every need:
 flexible arrangement of menu bars
 colouring of waveforms
 individual montage settings
Review of EEG waveforms
Waveforms can be displayed in a variety of methods.
 40 individual montages with up to 250 traces
 Pre-defined or individual high / low cut filters.
 Manual or automatic paging forwards and backwards is the standard
way of reviewing EEG waveforms. Other ways are the event bar or
DSA trend graph to navigate to interesting parts of the EEG recording.
 Several measurement tools help to go into details.
 A part of the waveforms can be copied into the note waveform
window to compare them to the current waveforms.
DSA trend graphs
Frequency components of EEG waveforms and the amplitudes of each frequency are displayed as a DSA (Density
Spectral Array) trend graph on the review screen and EEG Scope. The DSA lets you find epileptic seizures of a
specific EEG frequency band over a long period of time at a glance. Up to 8 trend graphs can be displayed, each
with its own settings in regards of the electrodes shown.
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3D voltage mapping
Whole head maps provide a complete overview and a better interpretation
of the topography of EEG abnormalities. Just click on a detected pattern to
obtain 3D maps of the whole head. Click on a particular view to obtain a
series of maps showing the change over time.
EEG mapping
The EEG mapping module QP-220AK provides amplitude and frequency
mapping of EEG waveforms
 Real-time mapping during acquisition
 Off-line mapping during review for selected intervals
 Up to eight frequency maps (seven power/voltage maps at seven different frequency bands and one map of all
frequency bands)
 Power/Voltage spectra for up to 32 channels of EEG waveform data
 Edge frequency, average frequency, median frequency or peak frequency for each spectrum is indicated with a
mark.
Potential mapping
Spectral analysis
Frequency mapping
Reporting
NeuroReport is the common reporting tool for all
neurological systems from Nihon Kohden. Various predefined
templates can be used to create customized reports for
different examination types, physicians or other criteria.
You can also create an EMU examination report which has
screen comments automatically assigned to seizure events.
A powerful auto-text function helps to create individual
reports. Saved within the database in a license free format,
the reports will be automatically converted into PDF after
finalizing.
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Digital video system (option)
Patient image including sound can be recorded and reviewed
synchronized with the EEG waveform.
 A wide range of different video formats (MPEG1 and MPEG4)
and resolutions (up to 720*576 pixel) are available.
 Real time and fast forward mode (up to 20 times) for reviewing
the video
 Comfortable clipping and snapshot functions allow reducing
the video data by creating new video EEG clips or attaching
the clipped video file to the original EEG recording.
BESA Epilepsy (option)
BESA Epilepsy is a software for fast detection, visualization,
and evaluation of epileptiform EEG activities recorded noninvasively from the human scalp.
 Automated detection and clustering of brief epileptiform
discharges in 2 h epochs
 It allows a very fast evaluation of long-term EEG data using
a new hyperclustering technique
 Evaluation and reporting can be done within 5 minutes for
a 24 h interval
Advanced software options
 On-line and off-line Spike- and seizure detection software QP-251AK based on Persyst®
 EEG Examination Software QP-150AK including spike- and seizure detection, voltage mapping of intracranial
recordings, and EEG TrendScope for remote review of recordings
 Polysmith sleep analysis software
QP-251AK
QP-150AK
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Polysmith
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Data integration and management
Polaris.one
Polaris.one allows you to easily manage EEG data and examination schedules.
 SQL based database for EEG, EMG/EP, and ECG data
 User interface can be scaled according to user needs
 Calendar view and to-do lists
 Copies of EEG data can be stored for personal or global use
 Presentation functionality for case conferences
 Auto-proposing for text input fields
 Manual, semi-automatic, and automatic transfer and archive as background service
 Integrated NeuroReport incl. PDF conversion
 Offline functionality for acquisition and review stations
 Multi-client-capability with user-related filtering of patients
 Extensive user rights management (via groups)
 Activity log records all changes to medical data
 Integrated DVD/CD burning
EEG PortaView
EEG PortaView integrates review software into EEG data files and saves them on a portable storage device, so you
can review the EEG data on any Windows PC without special software. Just carry the EEG data and you can review
anytime and anywhere.
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TECHNICAL DATA
DATA ACQUISITION
JE-921A/AG electrode junction box
Number of input jacks
EEG input jacks:
25
Extra inputs:
4
Bipolar input jacks (pairs):
7
The extra jacks (X1-X4) can be used as bipolar jacks. To select
extra jack or bipolar jack, refer to Section 5 System Programs .
DC input jacks:
4
SpO2 connector:
1
CO2 connector:
1
Input impedance
EEG input/extra input:
100 MΩ
DC input:
1.5 MΩ
Input circuit current:
5 nA or less
Internal noise level
EEG input/extra input:
1.5 μVp-p or less (0.53 to 60 Hz)
DC input:
10 mVp-p or less
EEG input/extra input:
105 dB or greater (60 Hz)
Bipolar input:
100 dB or greater (60 Hz)
CMRR
Low-cut filter:
0.08 Hz (Time constant: 2 s)
High-cut filter:
300 Hz (-18 dB/oct)
Offset tolerance:
±600 mV
AD conversion:
16 bits (97 nV/LSB)
Sampling and hold:
All electrodes at the same time
Sampling frequency
100, 200, 500, 1000, selectable
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JE-910A/AG electrode junction box
Number of input jacks
EEG input jacks:
25
Extra inputs:
4
Bipolar input jacks (pairs):
3
Input Impedance
EEG input/extra input:
Input circuit current:
100 MΩ
5 nA or less
Internal noise level
EEG input/extra input:
1.5 μVp-p or less (0.53 to 60 Hz)
EEG input/extra input:
105 dB or greater (60 Hz)
CMRR
Low-cut filter:
0.08 Hz (Time constant: 2 s)
High-cut filter:
300 Hz (− 18 dB/oct)
Offset tolerance:
±600 mV
A/D conversion:
16 bits (97 nV/LSB)
Sampling and hold:
All electrodes at the same time
Sampling frequency:
100, 200, 500, 1000 Hz, selectable
JE-120A electrode junction box (option)
Number of input jacks
The JE-120A electrode junction box must be used with the
following mini junction box combinations.
Mini junction box
Total number of
(Number of input jacks)
input jacks
JE-208A (64)
64
or
JE-225A (64)
64
JE-210A (128) or
128
JE-225A (64) and JE-226A (64)
128
JE-225A (64) and JE-226A (64)
and JE-227A
JE-225A (64) and JE-226A (64)
and JE-227A (64) and JE-228A (64)
Bipolar inputs
192
256
4
provided with JE-125A (alternative to JE-225A) or JE-208A
DC inputs
16
Additional inputs
SpO2 and etCO2
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Maximum number of recorded
referential electrodes and sampling
256 (2 kHz), 128 (5 kHz), 64 (10 kHz)
frequency (clinical line)
Maximum number of recorded
referential electrodes and sampling
256 (10 kHz)
frequency (extended line for research)
Input range:
±3.2mV or ±12,8mV (selectable)
Input impedance:
200 MΩ
Internal noise level:
Less than 1.5 μVp-p (0.53 to 120 Hz)
CMRR:
110 dB or greater (60 Hz) (EEG inout)
Time constant:
2 or 10 s, selectable
High-cut filter:
3000 Hz (− 18 dB/oct), depending on the sampling frequency
Offset tolerance:
±1000 mV
A/D conversion:
24 bits
Sampling and hold:
All electrodes at the same time
Sampling frequency:
10000 Hz (max)
Number of input jacks (for all amplifiers / input boxes):
Model /Inputs
EEG
EXTRA (X1-)
Bipolar
25
JE-213A / JE-214A
64
1
64
1
JE-227A / JE-228A
JE-921A/AG
25
JE-910A/AG
25
8 (4ch)
Reference (Z)
JE-208A
JE-215A / JE-226A /
33
Respiration
14 (7ch) *
4
DC
1
3 (X5, X6, X7)
1
6 **
3
* X1(+) to X4(+) inputs jacks can be used as unipolar inputs
**4 x DC + 1 x SpO2 input + 1 x CO2 input
Note: The extra jacks and the RESP jack for each item cannot be used simultaneously.
DATA PROCESSING
Sensitivity
EEG INPUT:
DC INPUT:
OFF, 1, 2, 3 (2.5), 5, 7, 10, 15, 20, 30, 50, 75, 100, 150,
200 μ V/mm
OFF, 10, 15, 20, 30, 50, 75, 100, 150, 200 mV/mm
0.001, 0.003, 0.03, 0.1, 0.3, 0.6, 1.0, 2.0, 5.0, 10.0 s
Time constant (Low-cut filter):
0.016, 0.03, 0.08, 0.16, 0.27, 0.53, 1.6, 5.3, 53, 159 Hz
(− 6 dB/oct)
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JE-921A electrode junction box
15, 30, 35, 60, 70, 120 (− 12 dB/oct), 50 (RAPID), 300 Hz (− 18 d
B/oct)
High-cut filter:
JE-120A electrode junction box (option)
15, 30, 35, 60, 70, 120, 300, 600, 1200 (− 12 dB/oct),
50 (RAPID), 3000 Hz (− 18 dB/oct)
AC filter:
50 or 60 Hz, (rejection ratio: 1/25 or more)
Calibration waveform
Waveform shape:
0.25 Hz step wave or 10 Hz sine wave
Voltage:
2, 5, 10, 20, 50, 100, 200, 500, 1000 μV (×1000 for DC input
signal)
ECG elimination filter:
Available in acquisition and review programs
Impedance check
Indication on the screen:
All electrodes are displayed on the screen in electrode position
layout. Impedance for each electrode is displayed and
electrodes with impedance higher than the preset impedance
threshold are highlighted.
Indication on LED:
LEDs on the electrode junction box with impedance higher than
the preset impedance threshold light.
Impedance threshold:
Pattern:
2, 5, 10, 20 and 50 kΩ
36 sets of programmable montages combined with
programmable individual amplifier settings
Reference electrode selector:
A1  A2, A1 A2, A1  A2, A1 + A2, VX, AV (with
unsuitable electrode deletion function), Aav, Org, SD, BN and
OFF
Marking signal:
Photic stimulation mark, Hyperventilation mark
DISPLAY
Display resolution:
Up to 1600 dots × 1200 lines
Up to 64 and one mark channel
Number of display channels:
When multi-channel electrode junction box and mini junction
boxes are used:
Up to 250 and one mark channel
Display modes:
Overwrite and page-by-page
Waveform display color:
16 colors
Waveform display on/off:
Provided
Waveform position adjustment:
Provided
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Waveform freeze:
Patient image display:
Provided
Available when the optional QI-120A Camera Capture Unit and
video camera are used.
Waveform sweep speed:
0.1, 0.2, 0.5, 1, 2, 5, 10, 15, 20, 30, 60 s or 5 min/page
Timing mark:
0.1, 1 s
Time scale:
off, 0.2, 1 s
Event mark:
Displays at the bottom of the screen
EEG scale:
Provided
Dual display:
Available
ACQUISITION PROGRAM
Timer function:
Manual timer, recording timer, HV timer
Data storage device:
Hard disk drive (standard)
PHOTIC SIMULATOR
Optional photic control unit:
LS-120A
Flash lamp:
LS-703A
Maximum flash energy:
1.28 J/Single
Stimulation modes:
3 automatic (30 steps, programmable), manual, and single
Mode of operation:
Continuous operation with intermittent loading
Duty cycle:
Max. 5 minutes continuous operation in 30 minutes
Automatic stimulation
Stimulus rate:
0.5, 1 to 33 (1 Hz steps), 50 and 60 Hz
Stimulation period:
1 to 99 seconds in 1 second steps
Pause period:
1 to 30 seconds in 1 second steps
Manual stimulation
Photic frequency:
Stimulation time:
Manually set frequency and stimulation period
0.5 Hz, 1 to 33 Hz in 1 Hz steps, 50 and 60 Hz
1 to 99 s in 1 second steps and continuous stimulation
(FREE: Max. 5 min)
Pulse mode:
Normal, random, and double
Random stimulation:
1 to 33 Hz in 1 Hz steps within ± 50%
Single stimulation:
Manual key operation single stimulation or automatic single
stimulation by external trigger signal
Trigger input:
TRIGGER IN connector (1 to 5 V)
Trigger output:
TRIGGER OUT connector (3 V or more)
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DIGITAL VIDEO UNITS (OPTOIN)
MPEG4 encoding:
NF-QV4/STD
Video resolution:
up to 640 × 480 pixels (NTSC), up to 720 × 576 pixels (PAL)
Digital video software:
QP-110AK
Windows Media 9
Software encoded MPEG4:
Time delay between EEG waveform and video image: within 100
ms in still mode
Camera capture unit:
QI-120A
Video storage device:
usage of existing system/data hard disk
External USB video capture unit:
USB I/F:
QI-120A
USB 2.0 high speed
Composite × 1 ch RCA pin jack
S-Video × 1 ch MINI-DIN 4-pin jack
Video input:
720 × 576, 50 fields/s (PAL)
Data transfer speed 23.1 MB/s maximum
2 ch (stereo mini jack × 1)
Audio input:
16 bit sampling 44,100 Hz
Data transfer speed 177 kB/s maximum
5 V ± 5%, less than 500 mA (using USB bus power)
Power:
Data compression and required disk space
(Windows Media 9 encoding):
Resolution
Frame 2
Frame 15
Low
Medium
High
Extra High
High Res
320x240 pixels
(NTSC/PAL)
320x240 pixels
(NTSC/PAL}
Frames
File Size
2 frames/s
0.8 MB/min
15frames/s
1.2 MB/min
320x240 pixels
29.97 frames/s (NTSC)
(NTSC/PAL)
25 frames/s (PAL)
320x240 pixels
29.97 frames/s (NTSC)
(NTSC/PAL}
25 frames/s (PAL)
320x240 pixels
29.97 frames/s (NTSC)
(NTSC/PAL)
25 frames/s (PAL)
320x240 pixels
29.97 frames/s (NTSC)
(NTSC/PAL)
25 frames/s (PAL)
640x480 pix (NTSC)
29.97 frames/s (NTSC)
720x576 pix (PAL)
25 frames/s (PAL)
Neurofax EEG-1200K | Product Features / Technical Data (Ver. 120131)
1.5 MB/min
2.25 MB/min
10 MB/min
20 MB/min
24 MB/min
Audio Capture
Monaural, 48 kbps,
44kHz sample rate
Monaural, 48 kbps,
44kHz sample rate
Monaural, 48 kbps,
44kHz sample rate
Monaural, 48 kbps,
44kHz sample rate
Stereo, 192 kbps,
44kHz
Stereo, 192 kbps,
44kHz
Stereo, 192 kbps,
44kHz
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REVIEW PROGRAM
Changeable items:
Jump functions:
Montage, sensitivity, high-cut filter, time constant, reference
electrode, and display speed
Specified event, page by page, and specified time
Continuous, high speed, high speed with pause, manually page-
Display modes:
by-page, manually second-by-second and manually waveform
centering
Display information:
Event, channel number, montage and comment
ELECTROMAGNETIC COMPATIBLITY
IEC 60601-1-2: 2001
IEC 60601-1-2 Amendment 1: 2004
CISPR11 GROUP 1 CLASS B: 2003
CAN/CSA C22.2 No.60601-1-2-03
POWER REQUIREMENTS
Line voltage:
SM-120AK isolation unit: AC 220 to 240 V
Line frequency:
50/60 Hz
750 VA (for PC unit and display)
Power consumption:
1 kVA (PC unit, display, photic stimulator control unit and
analog output unit)
SAFETY
Safety standard
IEC 60601-1: 1988
IEC 60601-1
Amendment 1: 1991
CAN/CSA C22.2
No.601.1B-90
CAN/CSA C22.2
No.60601-1-1-02
(R2002)
IEC 60601-1
CAN/CSA C22.2
Amendment 2: 1995
No.60601-2-26-04
IEC 60601-1-1: 2000
EN 60601-1: 1990
IEC 60601-1-2: 2001
EN 60601-1
Amendment 1: 1993
IEC 60601-1-2
EN 60601-1
Amendment 1: 2004
Amendment 2: 1995
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IEC 60601-2-26: 2002
CAN/CSA C22.2
No.601.1-M90: 1990
CAN/CSA C22.2
No.601.1-1S1-94
Type of protection against electric
shock:
EN 60601-1
Amendment 13: 1996
EN 60601-1 -1: 2001
EN 60601-2-26:2003
Class I
Degree of protection against electric
shock (JE-921A)
Type BF applied part:
Electrode jacks, bipolar jacks, SpO2 connector, CO2 connector
Degree of protection against electric
shock (JE-207A/209A/212A)
Type CF applied part:
Degree of protection against harmful
ingress of water:
Electrode jacks, bipolar jacks
Non-protected (IPX0)
Degree of safety of application in the
presence of a flammable anaesthetic
Not suitable for use in the presence of a flammable anaesthetic
mixture with air or oxygen or
mixture with air or oxygen or nitrous oxide
nitrous oxide:
Mode of operation:
Continuous
DIMENSIONS AND WEIGHT
JE-921A, electrode junction box:
185 (W) × 72 (D) × 167 (H) mm, 1.0 kg
200 (W) × 300 (D) × 185 (H) mm, 6.5 kg
PC unit:
The dimensions and weight differ according to model.
Refer to the Operator’s manual of the PC unit.
SM-120AK, isolation unit:
LS-120A/AG, photic stimulator
control unit:
181 (W) × 320 (D) × 140 (H) mm, 13 kg
155 (W) × 300 (D) × 75 (H) mm, 4.10 kg
QD-120A, analog output unit:
155 (W) × 300 (D) × 75 (H) mm, 2.32 kg
NF-KD1200/1, cart:
565 (W) × 625 (D) × 830 (H) mm, 44 kg
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OPERATION CONDITIONS
Temperature:
10 to 35˚C (50 to 95˚F)
Humidity:
30 to 80% (noncondensing)
Atmospheric pressure:
70 to 106 kPa
TRANSPORT AND STORAGE CONDITIONS
Temperature:
-20 to +60˚C (-4 to +140˚F)
Humidity:
10 to 80%
Atmospheric pressure:
70 to 106 kPa
ELECTROMAGNETIC EMISSIONS
The EEG-1200’s essential performances in EMC standard satisfy the following criteria.
EEG-1200 is intended for use in the electromagnetic environment specified below.
The customer or the user of the EEG-1200 should assure that it is used in such an environment.
Emissions test
RF emissions
CISPR 11
RF emissions
CISPR 11
Harmonic emissions
IEC 61000-3-2
Compliance
The EEG-1200 uses RF energy only for its internal function.
Group 1
Therefore, its RF emissions are very low and are not likely to
cause any interference in nearby electronic equipment.
Class B*
The EEG-1200 is suitable for use in all establishments,
Class A
including domestic establishments and those directly
connected to the public low-voltage power supply network
Voltage fluctuations/
flicker emissions
Electromagnetic environment guidance
that supplies buildings used for domestic purposes. *
Complies
IEC 61000-3-3
* When the optional JE-207A/209A/212A electrode junction box is used, the compliance for RF emission is class A.
The EEG-1200 with JE-207A/209A/212A is suitable for use in all establishments excluding domestic establishments
and those directly connected to the public low-voltage power supply network that supplies buildings used for
domestic urposes.
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Electromagnetic Immunity
The EEG-1200’s essential performances in EMC standard satisfy the following criteria. This Model EEG-1200 is
intended for use in the electromagnetic environment specified below. The customer or the user of the EEG-1200
should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment -
Electrostatic
±6 kV contact
±6 kV contact
Floors should be wood, concrete
discharge (ESD)
±8 kV air
±8 kV air
or ceramic tile. If floors are
guidance
IEC 61000-4-2
covered with synthetic material,
the relative humidity should be
at least 30%.
Electrical fast
±2 kV for power supply
±2 kV for power supply
Mains power quality should be
transient / burst
lines
lines
thatof a typical commercial or
IEC 61000-4-4
±1 kV for input/output
±1 kV for input/output
hospital environment.
lines
lines
Surge
±1 kV differential mode
±1 kV differential mode
Mains power quality should be
IEC 61000-4-5
±2 kV common mode
±2 kV common mode
that of a typical commercial or
Voltage dips, short
<5% UT (>95% dip in UT)
<5% UT (>95% dip in UT)
Mains power quality should be
interruptions and
for 0.5 cycle
for 0.5 cycle
thatof a typical commercial or
voltage variations on
40% UT (60% dip in UT)
40% UT (60% dip in UT)
hospital environment.
power supply input
for 5 cycles
for 1 cycle
If the user of the EEG-1200
lines
70% UT (30% dip in UT)
70% UT (30% dip in UT)
requires continued operation
IEC 61000-4-11
for 25 cycles
for 2 cycles
during power mains
<5% UT (>95% dip in UT)
(for 1 cycle*1)
interruptions, it is recommended
for 5 s
<5% UT (>95% dip in UT)
that the EEG-1200 be powered
for 5 s
from an uninterruptible power
hospital environment.
supply or a battery.*2
Power frequency
3 A/m
3 A/m
Power frequency magnetic fields
(50/60 Hz)
should be at levels characteristic
magnetic field
of a typical location in a typical
IEC 61000-4-8
commercial or hospital
environment.
NOTE: UT is the AC mains voltage prior to application of the test level
*1
When the QI-120A is connected to the EEG-1200.
*2
It is recommended that the EEG-1200 be powered from an uninterruptible power supply or a battery if the power
quality is not stable.
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Immunity test
IEC 60601 test
Compliance
level
level
Electromagnetic environment – guidance
3 Vrms
Portable and mobile RF communications
3 V/m
equipment should be used no closer to any part
of the EEG-1200, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency of
Conducted RF
3 Vrms
IEC 61000-4-6
150 kHz to 80
MHz
Radiated RF
IEC 61000-4-3
the transmitter.
Recommended separation distance
d = 1.2 P
3 V/m
80 MHz to 2.5
d = 1.2 P 80 MHz to 800 MHz
GHz
d = 2.3 P 800 MHz to 2.5 GHz
where P is the maximum output power rating of
the transmitter in watts (W) according to the
transmitter manufacturer and d is the
recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey.*1,
should be less than the compliance level in each
frequency range. *2. Interference may occur in
the vicinity of equipment marked with the
following symbol:
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
*1 Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones
and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted
theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in the location in which
the EEG-1200 is used exceeds the applicable RF compliance level above, the EEG-1200 should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as re-orienting or relocating the EEG-1200.
*2 Over the frequency range 150 kHz to 80 MHz, field strengths should be less than for all other
functions.
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Avoiding Electromagnetic Interference (Impedance Respiration)
Impedance respiration measurement is very sensitive and affected by electromagnetic interference. Technological
limitations do not allow immunity levels higher than 1 Vrms for conducted disturbances induced by RF fields.
Electromagnetic fields with conducted disturbances above 1 Vrms may cause measurement error. Do not use
electrically radiating equipment near the impedance respiration measurements.
When the JE-921A electrode junction box is connected to the EEG-1200 electroencephalograph
Immunity test
IEC 60601 test
Compliance
level
level
Electromagnetic environment – guidance
The JE-921A that is connected to the EEG-1200
must be used only in a shielded location with a
minimum RF shielding effectiveness and, for each
cable that enters the shielded location, a
minimum RF filter attenuation of 31 dB over the
frequency range 80 MHz to 2.5 GHz. Refer to the
note below this table.
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5
Field strengths outside the shielded location from
0.3 V/m
GHz
fixed RF transmitters, as determined by an
electro-magnetic site survey*, should be less than
3 V/m. Refer to the note below this table.
Interference may occur in the vicinity of
equipment marked with the following symbol:
NOTE 1: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection structures, objects and people.
NOTE 2: It is essential that the actual shielding effectiveness and filter attenuation of the shielded location be verified to
assure that they meet the minimum specification.
*
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile
radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To
assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be
considered. If the measured field strength outside the shielded location in which the JE-921A that is connected to the
EEG-1200 is used exceeds 3 V/m, observe the JE-921A that is connected to the EEG-1200 to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as relocating the JE-921A that is
connected to the EEG-1200 or using the shielded location with a higher RF shielding effectiveness and filter attenuation.
NOTE
The JE-921A that is connected to the EEG-1200 should be used in a shielded location with an RF filter
attenuation of 31 dB over the frequency range 80 MHz to 2.5 GHz. If the JE-921A that is connected to the
EEG‑1200 is used outside shielded location, use it in a location where the measured field strength is less than
0.3 V/m. To measure shielding effectiveness, consult a service engineer.
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Recommended Separation Distances between Portable and Mobile RF Communications Equipment
The EEG-1200 is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the EEG-1200 can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF communications equipment (transmitters) and the EEG-1200
as recommended below, according to the maximum output power of the communications.
Rated maximum output
Separation distance according to frequency of transmitter (m)
power of transmitter
150 kHz to 80 MHz
(W)
d = 1.2
80 MHz to 800 MHz
฀
800 MHz to 2.5 GHz
d = 1.2
d = 2.3
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation
distance d in meters (m) can be estimated using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the
transmitter manufacturer.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
System Composition for EMC Test
The EEG-1200 electroencephalograph is tested to comply with IEC 60601-1-2: 2001 with the following composition.
If any part which is not specified by Nihon Kohden is used, the EMC specifications may not comply.
Units
Cable length
Electrode junction box JE-921A
5.0 m
Photic stimulator control unit LS-120AJ/AK
0.7 m
Flash lamp assembly LS-703A
5.0 m
Mini electrode junction box JE-922A
5.0 m
Camera capture unit QI-120A
0.8 m
Analog output unit QD-120A/AK
0.7 m
Input box converter QI-122A/AK
10 m
Electrode junction box JE-212A
5.0 m
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STANDARD COMPOSITION
For routine study:
 Main unit, EEG-1200K, PC unit,
 Electrode junction box, JE-921A/AG or JE-910A/AG
 Accessory Kit (INT or GER version)
For 64 channel monitoring:
For 128 channel monitoring:
For 192 channel monitoring:
Main unit, EEG-1200K, PC unit,
Main unit, EEG-1200K, PC unit,
Main unit, EEG-1200K, PC unit,
Electrode junction box, JE-207A
Electrode junction box, JE-209A
Electrode junction box, JE-212A
Input box converter, QI-122AJ/K
Input box converter, QI-122AJ/K
Input box converter, QI-122AJ/K
STANDARD ACCESSORIES
German (GER) accessory kit
International (INT) accessory kit
Description
Qty
Order code
Description
Universal EEG cap
1
BE-0007
Collodion electrodes (12 pcs) 2
H527
Chin strap
1
BE-0008
Ear electrodes
3
NE-313AG
Bridge electrodes
23
BE-005W
Fast Clip ECG electrodes
1
H068
Electrode cable
25
2144-012358F
Cable for Fast Clip
1
K512A
Electrode felt pad
1
NKD-Filz
Cardiocream
1
F010/1
Rubber rings
1
2144-011555
Skinpure
1
F020/1
Ear electrodes
3
NE-313AG
Elefix
1
F510
Fast Clip ECG electrodes 1
H068
Cable for Fast Clip
1
K512A
Cardiocream
1
F010/1
Skinpure
1
F020/1
Qty
Order code
OPTIONAL SOFTWARE
 Spike detection and evaluation, BESA Epilepsy
 Spike and seizure detector software, QP-251AK,
 EEG examination support software, QP-150AK
 Trend program, QP-160AK
 Analysis software, EEGFocus
 Sleep analysis software, Polysmith
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This brochure may be revised or replaced by Nihon Kohden at any time without notice.
NIHON KOHDEN EUROPE GMBH
Raiffeisenstrasse 10
61191 Rosbach
Germany
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