BT-300
Table of contents
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BT-300 Service Manual V2.0
Table of Contents
TERMS OF WARRANTY................................................................3
CAUTION.........................................................................................3
HOW TO CONTACT US ….............................................................4
DEFINITION OF WARNING, CAUTION, NOTE.............................6
GENERAL PRECAUTION ON ENVIRONMENT............................7
GENERAL PRECAUTION ON ELECTRIC SAFETY.....................8
SECTION 1. GENERAL INFORMATION .................9
1.1 Product Overview....................................................................9
1.2 Product Features...................................................................10
1.3 Product Configuration..........................................................10
SECTION 2. TECHNICAL DESCRIPTION...................................11
2.2 Main Unit.................................................................................12
1.2. Composition.........................................................................12
2.2. Main Board..........................................................................13
2.2.3Key Board.............................................................................25
2.3Doppler Probe.........................................................................26
2.3.1 Composition.......................................................................27
2.4UC Probe................................................................................27
2.4.1 Composition.......................................................................27
2.4.2 Technical Description.........................................................28
SECTION 3. TROUBLESHOOTING.............................................30
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BT-300 Service Manual V2.0
3.1 Warning Sign Occasion and Status Checking...................30
Alarm Occasion and Status Checking Up.................................31
3.2 Troubleshooting on the Other Situation.............................31
SECTION 4. MAINTENANCE AND CLEANING..........................33
4.1 Maintenance and Cleaning...................................................33
Caution....................................................................................34
4.2 Regular Inspection................................................................34
SECTION 5. SPECIFICATIONS....................................................35
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BT-300 Service Manual V2.0
Terms of Warranty
- This product is manufactured and examined by strict quality control and
inspection system.
- Compensation standard concerning repair, replacement and refund of the
product complies with “Consumer’s protection law” issued by Economic
Planning Dept.
- BT-300 is guaranteed by BISTOS Co., Ltd. And its warranty period is two
years from the date of purchase.
- Warranty repair or replacement will be made by BISTOS Service Center
with free of charge during warranty period if properly used under normal
condition in accordance with the instructions for use.
- In the event of a malfunction or failure during warranty period, customer
should inform BISTOS Co., Ltd. of the model name, serial number, date
of purchase and explanation of failure about the defective equipment.
3
Caution
Federal law restricts this device to sale by
or on the order of a physician
BT-300 Service Manual V2.0
How to contact us …
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BT-300 Service Manual V2.0
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BT-300 Service Manual V2.0
Definition of Warning, Caution, Note
6
You can contact us the following address and telephone numbers
for services and supplies.
Oversea Sales Team
BISTOS Co., Ltd.
Product and
Order Inquiries
Service
Request
and
Technical
Support
201, 2F, 239-15, Gasan-Dong,
Geumcheon-Gu, Seoul, Korea
Tel : +82-2-862-0642
Fax: +82-2-862-0644
Customer Service Team
BISTOS Co., Ltd.
201, 2F, 239-15, Gasan-Dong,
Geumcheon-Gu, Seoul, Korea
Tel : +82-2-862-0642
Fax: +82-2-862-0644
Our Website &
Email address
Website: http://www.bistos.co.kr
Email: bistos@bistos.co.kr
BT-300 Service Manual V2.0
For a special emphasis on agreement, terms are defined as
listed below in operation manual. Users should operate the
equipment according to all the Warning and Caution
instructions.
Manufacturer or Sales agency takes no responsibility for any
kind of damage or breakdown that is caused by misuse and
failure to maintain the equipment.
Warning
A Warning indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
Caution
A Caution indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury.
Note
A Note indicates a particular point of information; something
on which to focus your attention.
General Precaution on Environment
Do not keep or operate the equipment under the environment
listed below.
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BT-300 Service Manual V2.0
General Precaution on Electric Safety
Check the items listed below before operating the equipment.
- Be sure that power supply line is appropriate to use.
(Power Adaptor Input: 100 ~ 250V AC, Power Adaptor Output: 16V,
2.8A).
- Be sure that the entire connection cable of the system is properly
8
Avoid placing in an area
exposed to moisture. Do
not touch the equipment
with
wet hand.
Avoid placing in an area
where there is a high
variation of temperature.
Operating
temperature
ranges from 10°C to
40°C. Operating humidity
ranges from 30% to
85%.
Avoid exposure to
direct sunlight
Avoid in the
vicinity of
Electric
heater
Avoid placing in an area
where there is an
excessive humidity rise
or
ventilation problem.
Avoid placing in an
area
where chemicals are
stored or where there is
in danger of gas
leakage.
Do not disjoint or disassemble the equipment.
BISTOS Co., Ltd. takes no
responsibility of it
Avoid placing in
an area where
there is an
excessive
shock or vibration.
Avoid dust and
especially metal
material into the
equipment.
Power off when
the equipment
is
not fully
installed.
Otherwise, the
equipment
could be
BT-300 Service Manual V2.0
and firmly fixed.
Note
The equipment should not be placed in the vicinity of electric
generator, X-ray, broadcasting apparatus to eliminate the
electric noise during operation. Otherwise, it may cause
incorrect result.
Self-power line is important for BT-300. To use the same power
source with other electric instruments may cause incorrect
result.
Note
BT-300 is classified as listed below;
- This equipment conforms to Class I, Type-BF.
- Do not use the equipment in the vicinity of flammable
anesthetics and solvents.
- The equipment conforms to Class I according to IEC/EN
60601-1 (Safety of Electric Medical Equipment)
- This equipment conforms to Level B according to IEC/EN
60601-1-2 (Electromagnetic Compatibility Requirements)
Note
Accessory equipment connected to the analog and digital
interfaces must be certified according to the respective IEC
standards ( e.g. IEC 950 for data processing equipment and IEC
601-1 for medical equipment ). Furthermore all configurations
shall comply with the system standard EN 60601-1-1:1993.
If in doubt, consult the technical service department or your
local representative.
Section 1. General Information
1.1 Product Overview
BT-300 is the fetal monitor that measures the fetal heart rate(FHR)
which may be evaluated to predict fetal status and uterine
contraction. BT-300 irradiates ultrasound wave to the abdomen of a
pregnant woman, and detects the Doppler frequency signal reflected
from the heart of the fetus. BT-300 analyzes this signal and displays
the heart rate by LED. Also, BT-300 provides the sound from the
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BT-300 Service Manual V2.0
heart of fetus.
BT-300 measures the uterine contraction of a pregnant woman by
pressure sensors and displays the numerical values.
And BT-300 prints the heart rate of the fetus and the values of
uterine contraction.
1.2 Product Features
BT-300 records the heart rate of the fetus, the uterine contraction
of a pregnant woman, and basic information of the equipment
with a provided thermal printer.
BT-300 is capable of Monitoring of fetal heart rate with one or two
pulsed Ultrasound Transducer(s).
BT-300 can record automatically with thermal printer through
printer setup.
BT-300 is compact and light, potable and easy to use.
BT-300 uses a free voltage(100 – 240VAC input) power adaptor.
1.3 Product Configuration
BT-300 system consists of the followings. Unpack the package and
check out the following items. Also, be sure to check to see any
damage of main body and accessories
① BT-300 Main Body
② Ultrasound Transducer(Doppler Probe) - 2 EA(1 EA for BT-300S)
③ Tocotransducer(UC Probe) - 1EA
④ Event Marker -1EA
⑤ Thermal Print Paper - 2EA
⑥ Power Adaptor -1EA
⑦ Power Cord -1EA
⑧ Ultrasound Gel -1EA
⑨ Abdominal Transducer(Probe) Belt -3 EA(2 EA for BT-300S)
⑩ User’s Manual -1EA
Contents Name Description
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BT-300 Service Manual V2.0
BT-300 Main
Body
Main body of BT-300
(2-year Warranty)
Doppler Probe
Ultrasound Transducer for
Measuring FHR
UC Probe
Pressure Sensor(Tocotransducer)
for Measuring Uterine contraction
Event Marker
Used for a specific event(for
example, fetal Movement)
Z-folded type
Paper
Z-folder type thermal Paper
Probe Belt
Used for Holding Doppler Probe
and/or UC Probe
Power Adaptor
Adaptor for transform AC Power to
DC 16V
Power Cord
AC Power cord
Ultrasound Gel
Ultrasonic coupling gel
Section 2. Technical Description
2.1 General
BT-300 is capable of monitoring fetal heart rate and maternal
uterine contractions. Simultaneous trends of fetal heart rates (FHR)
and uterine activity (UA) are plotted by the built-in chart recorder.
FHR and UA are displayed continuously at numeric display on the
front panel.
Measuring fetal heart rate is using 1MHz ultrasound wave which
transmits the burst pulse to the 7 ultrasound sensors about 3.47KHz
periodically. This wave is reflected to the part of different medium.
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BT-300 Service Manual V2.0
Particularly, the reflection wave is shifted from moving targets like
heart, blood, etc. This phenomenon is a Doppler effect. This
reflected signal is converted to electrical signal and it can get some
useful information by many other processes.
Also, BT-300 measures the uterine contraction of a pregnant woman
by pressure sensors and displays waveform by means of numerical
values. This waveform informs the period and magnitude of the
uterine contraction.
DSP(digital signal processor) calculates the fetal heart rate and
uterine contraction, and transmits them to CPU by serial
communication.
CPU displays these values to the 7-segment, records on the thermal
paper and transmits to serial port for central monitoring system.
CPU performs these operations by input of key.
Refer to the operator’s manual for more detailed operations.
2.2 Main Unit
1.2. Composition
12
①
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