Fukuda Denshi LX-7230N User manual

ECG, Respiration and SpO
2
Transmitter
LX-7230N
Ver.02
Operation Manual
LX-7230N
Before using the product, please read this manual thoroughly.
Store this manual where it can be always referred to.
TYPE:GHz

CAUTION
Federal Law restricts this device to sale by or on the order of a physician.
CAUTION
Users are advised to periodically contact the FCC or specified frequency
coordinator and determine if other or your transmitter frequencies that
may cause interference.
CAUTION
The manufacturers, installers and users of Wireless Medical Telemetry
ystem equipment are cautioned that the operation of this equipment
could result in harmful interference to other nearby medical devices.
CAUTION:
This equipment for sale by or on the order of a physician.
The company and product names used in this manual are trademarks or
registered trademarks.
If this manual has pages missing or out of order, contact Fukuda Denshi
for replacement.
Only physician or persons instructed by physicians are allowed to use the
equipment.
The information contained in this document is subject to change without
notice due to improvement in the equipment.
Copyright © 2012 by Fukuda Denshi Co., Ltd.
No part of this document may be copied or transmitted in any form ithout the prior
ritten permission of Fukuda Denshi Co., Ltd.
Printed in Japan
This operation manual is for the LX-7230 Ver 02

i
Thank you for purchasing this product.
Before using this product, read this operation manual thoroughly for
correct handling and operation.
Safety Precautions
Read the “Safety Precautions” thoroughly before use to ensure correct and
safe use of the product.
Make sure to follow the precautions indicated below, as these are important
messages related to safety.
DANGE R
Failure to follow this message may cause immediate
threat of death or serious in ury.
WARN ING
Failure to follow this message may result in death or
serious in ury.
CAUTI ON
Failure to follow this message may cause in ury or
failure to the equipment.
NOTE
A note is not related to product safety, but provides
information about the correct use and operating
procedures to prevent incorrect operation and
malfunction of the equipment.
Precaution from Fukuda Denshi
Fukuda Denshi is liable for the safety, reliability, and performance of its
equipment only if;
Maintenance, modifications, and repairs are carried out by authorized
personnel.
Components are used in accordance with Fukuda Denshi operating
instructions.
If the equipment is used incorrectly and become unusable, Fukuda Denshi is
not liable for the malfunction. Use the equipment only for the purpose specified
in this manual.

ii
Graphic Symbols
Refer to the following symbols indicated on the LX-7230N for their meanings.
Symbols indicated on the main unit
Symbol Description
Caution: Refer To Accompanying Documents
Indicates the need to refer to the related accompanying
documents before operation.
Type CF Applied Part with Defibrillation-Proof
Indicates that the degree of protection against electric
shock is Type CF Applied Part with defibrillation-proof.
No Alarm Function
Indicates no alarm function.
Battery Type and Direction
Indicates the battery type and direction.
Symbols indicated on the LCD screen
Symbol Description
Heart Rate Synchronization Mark
This mark flashes synchronizing to the heartbeat.
Battery Mark
Indicates the remaining battery level.

iii
Precautions for Safe Operation of Medical Electrical Equipment
Cautions described here are regarding the general instructions for safety use
to the patient and users. As for cautions about the LX-7230N, please refer to
the following pages.
CAUTI ON
1. Users should have a thorough knowledge of the operation before
using this equipment.
2. Pay attention to the following when installing or storing the
equipment.
Do not install or store in an area where the equipment will be sub ect
to splashing water.
Do not install or store in an area where the environmental
conditions, such as atmospheric pressure, temperature, humidity,
ventilation, sunlight, dust, sodium, sulfur, will adversely affect the
system.
Place the equipment on a stable surface where there is no
inclination, vibration, or shock (including during transportation).
Do not install or store in an area where chemicals are stored or
gases are evolved.
3. Before operating the equipment, verify the following items.
Check the cable connection and polarity to ensure proper operation
of the equipment.
Ensure that all cables are firmly and safely connected. Especially,
recheck the attachment and connection condition of electrode and
the probe (sensor).
Pay special attention when the equipment is used in con unction with
other equipment as it may cause erroneous udgment and danger.
Check the remaining battery level.
When replacing the battery, make sure that the battery polarity is
correct. Do not charge the battery.
. During operation of the equipment, verify the following items.
Do not operate the equipment beyond the time period required for
diagnosis and medical care.
Do not pick up and/or swing the equipment pulling/grabbing the
probe (sensor) or cable part. It may damage the equipment and lead
to measurement error.
Always observe the equipment and patient to ensure safe operation
of the equipment.
If any abnormality is found on the equipment or patient, take
appropriate measures such as ceasing operation of the equipment
and/or detaching the probe (sensor) and/or electrode, in the safest
way for the patient.
Do not allow the patient to come in contact with other equipments.

iv
5. After using the equipment, verify the following items.
Make sure to turn off the power of the equipment.
When unplugging the cables, do not apply excessive force on the
cable and pull from its connector.
Clean the accessories and cables, and keep them together in one
place.
Keep the equipment clean to ensure proper operation for the next
use.
Make sure to remove the batteries if the equipment is not used for a
long time. The leakage from the batteries may damage the
equipment or an explosion from the batteries may occur.
6. If the equipment is damaged and in need of repair, ensure patient
safety by immediately turning the equipment off and remove the
electrodes and/or probe from the patient. User should not
attempt service. Label the unit “OUT OF ORDER” and contact
Fukuda Denshi representative.
7. Do not remodel the equipment.
8. Maintenance Check
Make sure to periodically check the equipment, and accessories.
Before reusing the equipment that has been left unused for a while,
make sure that the equipment works normally and safely.
9. When using electrosurgical knives or defibrillator with this
equipment, take care of the following.
To prevent burn in ury to the patient, verify proper attachment of
patient ground plate, ECG electrode type for the electrosurgical
knives, and the quantity of gel, output energy for the defibrillator.
Also, verify that a proper ground is selected.
Some types of equipment other than the above may cause
accidental hazards to the patient and operator due to the conditions
of the equipment . Read the operation manual attached to each
equipment and understand the precautionary instructions prior to
use.
Non-E plosion Proof
DANGE R
Never operate the equipment in the presence of flammable anesthetics,
high concentration of oxygen. It may cause an explosion or fire.
Never operate the equipment inside a hyperbaric chamber. It may
cause an explosion or fire.
Never operate the equipment where flammable gas or fluid such as
anesthetic, oxygen, and hydrogen are used. It may cause an explosion
or fire.

v
Precautions about Magnetic Resonance Imaging (MRI)
WARNI NG
Do not operate this equipment in magnetic resonance imaging (MRI)
environments.
When conducting MRI test, remove the electrodes and sensors
connected to the patient (test sub ect).
The local heating caused by the induced electromotive force may cause
burn in ury to the patient (sub ect). For details, refer to the operation
manual for the MRI testing device.
Electrosurgery Safety
WARNI NG
When using electrosurgical instrument, make sure the contact between
the patient and the ground plate is secured. If the connection is
incomplete, the patient may suffer a burn at the electrode site.
When using an electrosurgical instrument, it may misidentify noise from
the electrosurgical instrument as a heartbeat or arrhythmia.
Defibrillation Safety
WARNI NG
Use only the lead cable specified by Fukuda Denshi when defibrillating.
If used by unspecified lead cable, the equipment may be damaged,
resulting in a safety hazard.
When using the defibrillator, keep away from the electrodes or
medicament applied to the patient chest. If this is not possible, remove
the electrodes or medicament before using it.
If the defibrillator paddles are directly in contact with the electrodes or
medicament, an electrical shock may result from the discharged energy.
When using the defibrillator, do not touch the patient and the metal part
of the equipment or cables. Electric shock may result from the
discharged energy.

vi
Precautions about the Pacemaker
WARNI NG
Minute ventilation rate-adaptive implantable pacemakers can
occasionally interact with certain cardiac monitoring and diagnostic
equipment, causing the pacemakers to pace at their maximum
programmed rate. The cardiac monitoring and diagnostic equipment
may possibly send wrong information.
If such event occurs, disconnect the cardiac monitoring and diagnostic
equipment, or follow the procedures described in the operation manual
of the pacemaker.
(For more details, contact FUKUDA DENSHI personnel, your
institution’s professionals, or your pacemaker distributors.)
Reference
“Minute Ventilation Rate-Adaptive Pacemakers”
FDA alerts health professionals that minute ventilation rate-adaptive
implantable pacemakers can occasionally interact ith certain cardiac
monitoring and diagnostic equipment, causing pacemakers to pace at their
maximum programmed rate.
[Based on a safety bulletin issued by FDA Center for Devices and Radiological
Health on October 14, 1998]
ECG meter may continue to count the pacemaker rate during
occurrences of cardiac arrest or arrhythmias. Do not rely entirely upon
the ECG meter alarms. Keep pacemaker patients under close
surveillance. Check this manual for disclosure of the pacemaker pulse
re ection capability of this equipment.
Precautions about the LX-7230N
WARNI NG
Do not connect cables not authorized by Fukuda Denshi to any I/O
connector. If done so by mistake, the LX-7230N cannot deliver its
maximum performance and may be damaged, resulting in a safety
hazard.
Do not use this equipment with multiple patients simultaneously.
This equipment itself has no alarm function. Do not use it if an alarm
function is necessary. The alarm function with the receiving monitor,
refer to the operation manual of the receiving monitor.
CAUTI ON
Do not pick up and/or swing the LX-7230N pulling/grabbing the probe
(sensor) or cord part. The cable could break or get disconnected from the
LX-7230N. And it may hit people or damage other equipment around.

vii
Precautions about Waterproof
CAUTI ON
Replace the “Battery Compartment Lid” of the LX-7230N regularly to
keep the performance of waterproof. If not regularly replaced, the quality
of the lid will deteriorate and cannot keep the waterproof performance.
For details about the regular replacement, contact your local Fukuda
Denshi service representative.
The lid may be damaged from high impact. If the LX-7230N is dropped
or is sub ected to a high impact, make sure that the lid is not damaged.
However, the SpO
2
probes (sensors) are not waterproof. Do not take a
bath with them, and ensure to be away from liquid.
Do not use the LX-7230N wet. Always wipe the LX-7230N with a soft
cloth and dry it thoroughly before use.
Precautions about ECG
CAUTI ON
When removing electrodes from the patient, remove them carefully and
slowly. Do not apply excessive force to remove them. Otherwise, it may
damage the skin.
There are some cases when the pacemaker pulse cannot be detected
depending on the pacemaker type, pulse voltage, pulse width, electrode
lead type (unipolar, bipolar), electrode placement, or lead method which
causes the pacemaker pulse amplitude to decrease and disables
pacemaker pulse detection.
If signals similar to a pacemaker pulse are present, such as electric
blanket noise or excessive AC frequency noise, these may be
erroneously detected and displayed as a pacemaker pulse. In this case,
check the condition of the electrodes and ECG lead cable to resolve the
cause or turn off the pacemaker detection setting on the receiving
monitor.

viii
Precautions about SpO
2
WARNI NG
During SpO
2
monitoring, always use the probe (sensor) specified by
Fukuda Denshi. If any other probe (sensor) is used, a high temperature
rise of the probe (sensor) may place the patient in danger of burns in
the worst case.
When the SpO
2
probe (sensor) is in a connector-off condition, the SpO
2
alarm will not be generated on the receiving monitor. Make sure that the
SpO
2
probe (sensor) is securely connected. If the SpO
2
waveform/numeric data is not displayed, check the patient’s condition
and pay attention not to miss the connector-off condition.
When measuring the SpO
2
of a patient with high fever or peripheral
circulatory insufficiency, check the probe (sensor) attachment
periodically and change the attachment site. The temperature of the
attachment site will rise 2 to 3 C due to the sensor heat which may
result in compression necrosis and burn in ury.
Even a short duration of attachment may inhibit the blood flow and
generate compression necrosis and burn in ury.
When securing the probe (sensor) with tape, do not apply the tape too
tight. At the same time, check the blood flow constantly so that
congestion is not generated at the peripheral. When removing the tape,
remove it slowly with care not to damage the patient’s skin.
CAUTI ON
For the following case, accurate measurement may not be possible.
Patient with excessive abnormal hemoglobin (COHb, MetHb)
Patient with the pigment injected to the blood
Patient receiving CPR treatment
Placement o SpO
2
probe (sensor) on limb with a blood-pressure cu ,
arterial catheter, or intravascular line
When measuring at placement position with venous pulse
Patient with body motion
Patient with small pulse
Excessive body motion (patient’s motion)
Excessive light (direct sunlight, luorescent, light therapy equipment,
surgical light, in rared heat ramp, etc.)
External colorant such as nail polish
Abnormally low or high hemoglobin concentration
Electrosurgery
In luence o electromagnetic waves rom other electronics devices
High-intensity radio waves rom mobile phones

ix
Precautions about Output Signal
WARNI NG
Do not use the output signal of the monitor that receives radio wave signal
from the LX-7230N as the trigger signal for IABP, MRI echocardiographic,
or defibrillator for the following reasons.
It may lead to a delay of operating timing due to the delay time of
waveform transmission.
A trigger signal unrelated to the heart rate may be generated due to
the interfusion of spike noise at weak electric field.
Precautions about Accessories and Optional Accessories
WARNI NG
Use only the accessories, such as ECG Lead cable and SpO
2
probe
(sensor), specified by Fukuda Denshi for the LX-7230N. Otherwise, the LX-
7230N cannot deliver its maximum performance and may be damaged,
resulting in a safety hazard.
CAUTI ON
Do not reuse disposable products.
Store the disposable products properly as mentioned in their user
manuals.
Precautions about Battery
WARNI NG
Use new "AA" size (“LR06” size) alkaline cell.
Install the battery with the correct polarity.
Do not charge the battery. Any attempt to charge the battery may cause
it to leak or break.
Do not short the (+) and (-) terminals. It may result in exothermic heat
and fire.
Do not throw the battery into fire. It may explode.

x
Precautions about Disposing of Equipment, Accessories, or
Components
CAUTI ON
When disposing of the equipment, accessories, or components, use an
industrial waste distributor. Do not dispose of as ordinary waste.
Used disposal items (ECG electrodes, etc.) shall be discarded as
medical waste.
Precautions about Disposing of Battery
CAUTI ON
Obey the local municipal rule to dispose the used dry cell battery.
Precautions for Use of Medical Telemeter
WARNIN G
The LX-7230N transmitter must not be co-located or operated in
con unction with any other antenna or transmitter.
The LX-7230N complies with FCC radiation exposure limits set forth for
a controlled environment and meets the FCC radio frequency (RF)
Exposure Guidelines. The LX-7230N has very low levels of RF energy
that are deemed to comply without testing of specific absorption ratio
(SAR).
Operation of LX-7230N requires the prior coordination with a frequency
coordinator designated by the FCC for the Wireless Medical Telemetry
Service.
This radio frequency device is susceptible to interference from outside
sources. Interference may prevent the monitoring of patients connected
to this equipment. If a problem exists, contact your local service
representative.
The LX-7230N transmits vital signs to the receiving monitor using radio
wave signal. Under unstable radio wave signals, the receiving monitor
will not generate any alarms. This situation may miss sudden change in
the patient's condition and may cause a serious accident. Under
unstable radio wave signals, check the patient status consistently under
this situation. To get stable radio wave signals, make sure to have a
proper telemetry installation.
CAUTION
For installation, make sure the following.
The medical institution (hereina ter re erred to as the “Institution”) must
decide the telemetry installation plan or the medical department in order
to prevent inter erence and inter erence between transmitters (telemetry

xi
based on destination country’s radio law). When telemetry has already
been installed and been used, radio ormat, requency, and antenna power
are required to be examined to prevent inter erence.
When using telemetry, which requires zone location, the Institution is to
set up the zones as an operation unit or each transmitter to prevent
electronic inter erence between telemetry throughout the Institution.
When using telemetry, which requires zone location, display and identi y
each prepared zone in the equipment.
When laying receiver antenna or each transmitter, the Institution has to
examine the installation so that electronic inter erence does not occur.
Based on the above examination result, the Institution should install each
receiver antenna as required.
For management, make sure to follow the precautions below.
The Institution should appoint a person (hereina ter re erred to as the
“Overall Manager”) to manage the wireless channels or the whole
Institution.
And when using telemetry, which requires zone location, the Institution
should nominate a person (hereina ter re erred to as the “Zone Manager”)
to manage the wireless channels in each zone. However, when using such
telemetry in a local Institution, one person can per orm both unctions.
The Overall Manager and Zone Manager must be selected rom people
who understand the characteristics and unctionality o telemetry systems,
and are skilled in operating telemetry.
When installing telemetry, the Overall Manager and the Zone Manager
have to understand the precautions or use o telemetry in advance.
The Overall Manager is responsible or maintenance o wireless channel
and storage and maintenance o telemeter in the overall medical acilities
to give proper instructions to the Zone Manager when using telemetry
needing zone alignment, and to the telemetry user when using telemetry
not-needing zone alignment.
The Overall Manager should create a management log (hereina ter
re erred to as the “log”), which contains a list o the management status o
the wireless channels or the whole Institution. When changing a wireless
channel, register it in the log and give proper instructions to the Zone
Manager or to the user.
The Zone Manager assumes responsibility or managing the wireless
channels, storing, and managing telemetry.
The Zone Manager assigns the transmitter to the user, and provides
enough education or use inside the zone.
The telemetry user veri ies operation o the transmitter/receiver be ore
use.
The telemetry user, i using the telemetry in a zone location, ollows the
instructions o the Zone Manager or the zone and gives instructions to the
patient i required.
When inter erence or breakdown occurs in telemetry communication, the
user is required to in orm the Zone Manager and the Overall Manager o
the problems. The Zone Manager and Overall Manager are to deal with
the problem properly and/or contact their nearest Fukuda Denshi
representative or service.

xii
Electromagnetic Compatibility
The performance of this equipment under electromagnetic environment
complies with IEC 60601-1-2 (2007).
Precautions for Safe Operation under Electromagnetic Influence
CAUTIO N
If any sorts of electromagnetic wave, magnetic field, or static electricity
exist around the equipment, noise interference or malfunction of the
equipment may occur. If any unintended malfunction or noise occurs
during monitoring, check the magnetic influence and take appropriate
countermeasures.
The following are examples of the common cause and countermeasures.
Mobile Phone
The radio wave may cause malfunction to the equipment.
Mobile phones and radio sets should be turned off in the room
(building) where medical device is located.
Static Electricity
In a dry environment (room), static electricity is likely to occur. Take
the following countermeasures.
Both operator and patient should remove any static electricity be ore
entering the room
Humidi y the room

xiii
EMC Guidance
This equipment complies with IEC 60601-1-2 (2007). However, if portable
transmitter or wireless LAN equipment is used extremely nearby, the
electromagnetic influence may largely exceed the compliance level and may
cause unexpected phenomenon such as noise interference on the waveform,
etc.
Therefore, this equipment should be used in a location specified by each
medical institution. If any unexpected noise interference on the waveform or
failure to the peripheral device occurs, stop using the equipment and follow the
instruction of the technician.
The following is the information relating to EMC (Electromagnetic
Compatibility).
(When using this equipment, verify that it is used within the environment
specified below.)
Compliance to the Electromagnetic Emissions
The LX-7230N is intended for use in the electromagnetic environment
specified below. The customer or the user of the LX-7230N should assure that
it is used in such an environment.
Emission Test Compliance
Electromagnetic Environment –
Guidance
RF Emission
CISPR 11 Group 1
The LX-7230N uses RF energy only for
its internal function. Therefore, its RF
emissions are very low and are not likely
to cause any interference in nearby
electronic equipment.
RF Emission
CISPR 11 Class A
This LX-7230N is suitable for use in all
establishments other than domestic
establishments.
Harmonic Emission
IEC 61000-3-2 N/A
Voltage Limit /
Flicker Emission
IEC 61000-3-3
N/A

xiv
Compliance to the Electromagnetic Immunity (1)
The LX-7230N is intended for use in the electromagnetic environment
specified below. The customer or the user of the LX-7230N should assure that
it is used in such an environment.
Immunity Test
IEC 60601-1-2
Test Level
Compliance
Level
Electromagnetic
Environment
Guidance
Electrostatic
Discharge
(ESD)
IEC 61000-4-2
±6kV contact
±8kV air
±6kV contact
±8kV air
Floors should be
wood, concrete or
ceramic tile. If floors
are covered with
synthetic material, the
relative humidity
should be at least
30%.
Electrical fast
transient/burst
IEC 61000-4-4
±2kV:
Power supply lines
±1kV:
Input/output lines
N/A
Surge
IEC 61000-4-5
±1kV:
differential mode
±2kV:
common mode
N/A
Voltage dips,
short
interruptions
and voltage
variations on
power supply
input lines.
IEC 61000-4-11
<5% U
T
(>95% dip in U
T
)
for 0.5 cycle
40% U
T
(60% dip in U
T
)
for 5 cycles
70% U
T
(30% dip in U
T
)
for 25 cycles
<5% U
T
(>95% dip in U
T
)
for 5sec.
N/A
Power
Frequency
(50/60Hz)
Magnetic Field
IEC 61000-4-8
3A/m 3A/m
Power frequency
magnetic fields should
be at levels
characteristic of a
typical location in a
typical commercial or
hospital environment.
Note: U
T
is the AC mains voltage prior to application of the test level.

xv
Compliance to the Electromagnetic Immunity (2)
The LX-7230N is intended for use in the electromagnetic environment
specified below. The customer or the user of the LX-7230N should assure that
it is used in such an environment.
Immunity
Test
IEC60601-1-2
Test Level
Compliance
Level
Electromagnetic Environment
Guidance
Portable and mobile RF
communications equipment should
be used no closer to any part of the
LX-7230N, including cables, than
the recommended separation
distance calculated from the
equation applicable to the
frequency of the transmitter.
Recommended Separation Distance
Conducted RF
IEC 61000-4-6 3Vrms 150kHz to 80MHz
3Vrms
d = 1.2
P
Radiated RF
IEC 61000-4-3 3V/m 80MHz to 2.5GHz
3V/m
d = 1.2
P
80MHz to 800MHz
d = 2.3
P
800MHz to 2.5GHz
Where P is the maximum output
po er rating of the transmitter in
atts (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
a)
,
should be less than the compliance
level in each frequency range
b)
.
Interference may occur in the
vicinity of equipment marked ith
the follo ing symbol:
Note 1: At 80MHz and 800MHz, 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.
a)
Field strengths from fixed transmitters, such as base stations for radio
(cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM
radio broadcast and TV broadcast cannot be predicted theoretically ith 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 hich the LX-7230N is used exceeds the applicable RF compliance
level above, the LX-7230N should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such
as re-orienting or relocating the LX-7230N.
b)
Over the frequency range 150kHz to 80MHz, field strength should be less than
3V/m.

xvi
Recommended Separation Distances between Portable and
obile RF Communications Equipment and the LX-7230N
The LX-7230N is intended for use in an environment in which radiated RF
disturbances are controlled. The customer or the user of the LX-7230N can
help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters)
and the LX-7230N as recommended below, according to the maximum output
power of the communications equipment.
Rated Maximum
Output Power of
Transmitter
(W)
Separation Distance according to Frequency of Transmitter (m)
150kHz to 80MHz
d = 1.2
P
80MHz to 800MHz
d = 1.2
P
800MHz to 2.5GHz
d = 2.3
P
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 po er not listed above, the recommended
separation distance d in meters (m) can be determined using the equation applicable to
the frequency of the transmitter, here P is the maximum output po er rating of the
transmitter in atts (W) according to the transmitter manufacturer.
Note 1 : At 80MHz and 800MHz, 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.

xvii
CONTENTS
Safety Precautions ..................................................................................... i
Precaution from Fukuda Denshi ....................................................... i
Graphic Symbols .............................................................................. ii
Precautions for Safe Operation of Medical Electrical Equipment .... iii
Non-Explosion Proof ....................................................................... iv
Precautions about Magnetic Resonance Imaging (MRI) ................. v
Electrosurgery Safety ...................................................................... v
Defibrillation Safety ......................................................................... v
Precautions about the Pacemaker .................................................. vi
Precautions about the LX-7230N .................................................... vi
Precautions about Waterproof ....................................................... vii
Precautions about ECG ................................................................. vii
Precautions about SpO
2
................................................................ viii
Precautions about Output Signal .................................................... ix
Precautions about Accessories and Optional Accessories ............. ix
Precautions about Battery ............................................................... ix
Precautions about Disposing of Equipment, Accessories,
or Components ........................................................................... x
Precautions about Disposing of Battery .......................................... x
Precautions for Use of Medical Telemeter ...................................... x
Electromagnetic Compatibility ............................................................ xii
Precautions for Safe Operation under Electromagnetic Influence .. xii
EMC Guidance .............................................................................. xiii
1. General Description ............................................................................. 1
2. Names of Parts and Their Functions .................................................... 3
3. Preparation .......................................................................................... 5
1) Installing the Batteries ................................................................ 5
2) Operating Power Switch ............................................................. 7
4. ECG Monitoring ................................................................................... 9
Connecting the ECG Lead Cable and Electrodes ...................... 9
Attaching the Electrodes .......................................................... 12
Connecting the ECG Lead Cable to the LX-7230N ................. 13
5. Respiration Monitoring ....................................................................... 15
6. SpO
2
Monitoring ................................................................................. 17
SpO
2
Monitoring ............................................................................ 18
7. Measurement ..................................................................................... 35
Starting Screen ........................................................................ 35
Waveform Display Screen ....................................................... 35
Battery Level Check ................................................................ 37
Waveform Display ................................................................... 37

xviii
8. Operation ........................................................................................... 47
Changing Setup ....................................................................... 47
Restarting the LCD display ...................................................... 51
Pressing the EVENT button ..................................................... 51
9. Other Setting Items ............................................................................ 53
Changing the Time Constant ................................................... 54
Changing the Detection Sensitivity of the Pacemaker Pulse ... 55
Changing the Respiration Detection Signal ON/OFF ............... 56
Changing the LCD Contrast ..................................................... 56
10. Changing the Transmitter Channel and Group ID ............................ 57
Changing the Transmitter Channel .......................................... 57
Changing the Group ID ............................................................ 57
11. Troubleshooting ............................................................................... 59
List of Displayed messages ..................................................... 59
Troubleshooting ....................................................................... 61
In Case of Dropping the LX-7230N into Water ........................ 63
12. Cleaning and Disinfection ................................................................ 65
Cleaning and Disinfecting the LX-7230N ................................. 65
Cleaning the ECG lead cable .................................................. 66
Cleaning and Disinfecting the SpO
2
probe (sensor) ................ 66
13. Maintenance and Inspection ............................................................ 67
14. Standard and Optional Accessories ................................................. 69
Standard Accessories .............................................................. 69
Optional Accessories ............................................................... 70
15. Specification ..................................................................................... 73
Specification ............................................................................ 73
Functional Testers and Patient Simulator for SpO
2
measurement ........................................................................... 76
Displays ................................................................................... 77
Details of the “ELECTRODE?” Message ................................. 79
List of Setup Items ................................................................... 80