Daiwha Meditom DT-400S User manual

MEDITOM®
DT-400S/300S
User Manual
DAIWHA
Copyright © 2014, DAIWHA Corporation. All rights reserved.
Manual No: RD-USM-EN-3-07 (Rev1.00)

2
Contents
1. Precautions ................................................................................................................... 5
1.1 Overview .................................................................................................................................. 5
1.2 Danger ..................................................................................................................................... 6
1.3 Warnings.................................................................................................................................. 6
1.4 Caution .................................................................................................................................... 6
1.5 Checklist before use .............................................................................................................. 11
1.6 Precautions during use .......................................................................................................... 11
1.7 Guidelines after use .............................................................................................................. 11
2. Terms and Symbols .................................................................................................... 12
2.1 Terms ..................................................................................................................................... 12
(1) Electro Surgical Unit (ESU) .............................................................................................. 12
(2) Cutting or Cut ................................................................................................................... 12
(3) Coagulation (Coag. Or Co.) . ........................................................................................... 12
(4) Bi-polar cutting output ...................................................................................................... 12
(5) Bi-polar coagulation output .............................................................................................. 12
(6) Mono-polar cutting output ................................................................................................ 12
(7) Mono-polar coagulation output ......................................................................................... 12
(8) D.R.M (Daiwha Return electrode Monitor) ....................................................................... 12
(9) Active electrode ................................................................................................................ 12
(10) Return electrode ............................................................................................................. 12
2.2 Symbols ................................................................................................................................. 13
2.3 Controls, Indicators and Receptacles ................................................................................... 15
2.4 Accessories ........................................................................................................................... 18
2.5 Labels – Instruction for use ................................................................................................... 18
3. Specifications ............................................................................................................. 19
3.1 Specifications ........................................................................................................................ 19
3.2 Operating Modes and Output Parameters ............................................................................ 20
3.3 Functions ............................................................................................................................... 20
3.4 Safety Devices....................................................................................................................... 21
4. Effect using the unit ................................................................................................... 25
4.1 Intended Purpose .................................................................................................................. 25
4.2 Modes for Monopolar Cutting ................................................................................................ 25
4.3 Modes for Monopolar Coagulation ........................................................................................ 25
4.4 Modes for Bipolar Cutting ...................................................................................................... 26
4.5 Modes for Bipolar Coagulation .............................................................................................. 26
5. Connecting Accessories with the unit ...................................................................... 28

3
5.1 Twin Button Handle & Return Electrode ................................................................................ 28
5.2 Unipolar Handle & Return Electrode ..................................................................................... 28
5.3 Bipolar Forceps ..................................................................................................................... 29
5.4 Foot switches......................................................................................................................... 29
6. Operating and Sequence ........................................................................................... 30
6.1 Monopolar.............................................................................................................................. 30
6.2 Bipolar ................................................................................................................................... 34
6.3 Summary ............................................................................................................................... 34
6.3.1 Preparations ............................................................................................................... 34
6.3.2 Operation Sequence .................................................................................................. 34
6.3.3 Guidelines after use ................................................................................................... 35
6.3.4 Precautions during use .............................................................................................. 36
7. Output Setting Guide.................................................................................................. 37
8. Sterilization ................................................................................................................. 38
9. Load Regulation & Vpeak Graphs ............................................................................. 39
9.1 Pure Cutting Mode ................................................................................................................ 39
9.1.1 Load Regulatio ........................................................................................................... 39
9.1.2 Open Circuit Peak Voltage ......................................................................................... 40
9.2 Blend1 Cutting Mode ............................................................................................................. 41
9.2.1 Load Regulation ......................................................................................................... 41
9.2.2 Open Circuit Peak Voltage ......................................................................................... 42
9.3 Blend2 Cutting Mode ............................................................................................................. 43
9.3.1 Load Regulation ......................................................................................................... 43
9.3.2 Open Circuit Peak Voltage ......................................................................................... 44
9.4 Blend3 Cutting Mode ............................................................................................................. 45
9.4.1 Load Regulation ......................................................................................................... 45
9.4.2 Open Circuit Peak Voltage ......................................................................................... 46
9.5 Soft Coagulation Mode .......................................................................................................... 47
9.5.1 Load Regulation ......................................................................................................... 47
9.5.2 Open Circuit Peak Voltage ......................................................................................... 48
9.6 Spray Coagulation Mode ....................................................................................................... 49
9.6.1 Load Regulation ......................................................................................................... 49
9.6.2 Open Circuit Peak Voltage ......................................................................................... 49
9.7 Cutting Biploar Mode ............................................................................................................. 50
9.7.1 Load Regulation ......................................................................................................... 50
9.7.2 Open Circuit Peak Voltage ......................................................................................... 50
9.8 Soft Bipolar Coagulation Mode.............................................................................................. 51
9.8.1 Load Regulatio ........................................................................................................... 51

4
9.8.2 Open Circuit Peak Voltage ......................................................................................... 51
10. User Maintenance ....................................................................................................... 53
10.1 General Maintenance Information ..................................................................................... 53
10.2 Responsibility of the manufacturer .................................................................................... 53
10.3 Cleaning and Disinfecting .................................................................................................. 53
10.4 Periodic Inspection ............................................................................................................ 53
10.5 Periodic Performance Testing ............................................................................................ 54
10.6 Product Life Span .............................................................................................................. 54
10.7 How to Scrap the Unit and Accessories ............................................................................ 54
10.8 Warranty ............................................................................................................................ 54
11. Guidance and manufacture’s declaration on electromagnetic emissions ............. 56
12. Document History ....................................................................................................... 61

1. Precautions5
1. Precautions
1.1 Overview
◎ This manual describes how to use the electrosurgical unit (Model: DT-400S/300S) manufactured
by DAIWHA Corporation, and its technical specifications.
◎ Repair or circuit alteration of this equipment can only be carried out by personnel authorized by
DAIWHA. The warranty shall not apply to defects or damage caused by repairs or disassembly by
anyone other than personnel authorized by DAIWHA, and safety shall not be assured.
◎ Parts or circuits which are used for this equipment can be replaced to improve the safety and
performance of this equipment.
◎ Read this manual carefully before using the electrosurgical unit, and understand its functions and
how to use it for safe use.
◎ Contact DAIWHA if you have any questions regarding the equipment or the User Manual.
◎ As the medical equipment, this product can be used only trained doctors.
◎ When the patient contacts grounded electric conductors such as the metal part of the grounded
operation table during the output, it may burn or shock the contacted body part.
◎ Since it operates on high frequency and high voltage, electromagnetic waves are generated
naturally. This might affect other equipment such as distorting an ECG monitor screen in a
negative way. When HF SURGICAL EQUIPMENT and physiological monitoring equipment (for
example ECG monitor) are used simultaneously on the same PATIENT. The grounding of ECG
should be placed through neutral plate in case that the units are using the same ground earth.Any
monitoring electrodes should be placed as far as possible from the surgical electrodes (Minimum
distance 150mm). Needle monitoring electrodes are not recommended.
The lead of Radio-Frequency electrode is the shorter is the better not to make loops between other
leads. For this reason Using device that apply to EMC(Electro-magnetic Compatibility) is strongly
recommended.
◎ Set the output to the lowest level which can achieve the desired operation effect, and then
gradually increase the output volume to the desired level.
◎ Prior to use, check the equipment-whether it has a problem.
◎ Power voltage and frequency must be supplied in a stable manner within the designated range on
product rear side. However, the output may vary depending on power. If the wall outlet voltage in
the hospital exceed the designated range by ± 5%, the equipment should be calibrated again by
manufacturer or supplier.
◎ If the power frequency in the hospital different from the designated range, the equipment should be
calibrated again, too. Please refer to product label on the back for exact power usage.
◎ Considering its cooling feature, continuous output can result in abnormal operation of the product.
Be sure duty cycle.
◎ A short circuit that might occur between electrodes during activating output will damage the
product.
◎ The Failure of the HF SURGICAL EQUIPMENT could result in unintended increase of output
power.
◎ Do not reuse disposable accessories.
◎ All accessories has to be always keep disinfected when you use, especially metal parts which is
contacting with the patient's body
◎ This manual is only applicable to pumps with Program Version v1.xx or above.

1. Precautions6
Safety precautions are classified as below in accordance with the expected danger, seriousness of
damage or urgency.
Danger
A precaution which can result in critical personnel injury or immediate loss of life if
instructions are not followed.
Warning
A precaution which could result in critical personnel injury or loss of life if instructions are
not followed.
Caution
A precaution which could result in minor personnel injury or damage to the product if
instructions are not followed.
1.2 Danger
1) The use of anesthetics or oxidizing gases such as nitrous oxide (N2O) and oxygen should be
avoided if a surgical procedure is carried out in the region of the thorax or the head, unless these
agents are sucked away.
Non-flammable agents should be used for cleaning and disinfection wherever possible.
Flammable agents use for cleaning or disinfecting, or solvents of adhesives, should be allowed to
evaporate before the application of H.F. surgery. There is a risk of pooling of flammable solutions
under the PATIENT or in body depressions such as the umbilicus, and in body cavities such as the
vagina. Any fluid pooled in these areas should be mopped up before HF SURGICAL EQUIPMENT is
used.
Attention should be called to the danger of ignition of endogenous gases. Some materials, for
example cotton, wool and gauze, when saturated with oxygen may be ignited by sparks produced in
NORMAL USE of the HF SURGICAL EQUIPMENT.
1.3 Warnings
1) The entire surface area of the Neutral Plate(Patient Plate, Return Electrode) must be reliably
attached to the patient's body. Be sure to check the contact status frequently during the operation.
When the contact is poor, parts of body touching the Neutral Plate(Patient Plate, Return Electrode)
will be burned. Avoid areas such as near heart, scars, joints, and parts with bones projected, parts
with a small area, and palaces where contact is likely to be unstabilized when the patient moves.
2) If the patient complains about electric shock, stop using the product immediately and have it
examined throughly.
3) Equipotential Grounding
The Electro Surgical Unit must be grounded to Earth. The Grounding Resistance must be Maximum
10Ω. Unexpectable Electric shock may be happened when you use the unit with Non-grounding.
Expecially, Equipotential Grounding is required between the devices in the same operating room, it
prevent micro shock. The Micro Shock means electric shock to heart. Sometimes it can be caused a
ventricular and so on. The resistance between the Grounding of equipments in same operating room
must be Maximum 0.1Ω.
4) Cardiac pacemaker or Internal Cardiac Defibrillator-(ICD)
HF SURGICAL EQUIPMENT poses a potential risk to patients with implants ( e.g. cardiac
pacemakers) or something. For PATIENT with cardiac or active implants, a possible hazard exists
because interference with the action of the pacemaker may occur, or the pacemaker may be
damaged. In case of doubt, approved qualified advice should be obtained. Before using this product
to patients who are currently using Pacemaker or ICD, consult with the manufacturer or cardiac
experts at the hospital.
1.4 Caution
1) As the medical equipment, this product can be used only trained doctors.
2) When the patient contacts grounded electric conductors such as the metal part of the grounded
operation table during the output, it may burn or shock the contacted body part.
3) Since it operates on high frequency and high voltage, electromagnetic waves are generated

1. Precautions7
naturally. This might affect other equipment such as distorting an ECG monitor screen in a negative
way.
When HF SURGICAL EQUIPMENT and physiological monitoring equipment (for example ECG
monitor) are used simultaneously on the same PATIENT. The grounding of ECG should be placed
through neutral plate in case that the units are using the same ground earth.
Any monitoring electrodes should be placed as far as possible from the surgical electrodes (Minimum
distance 150mm). Needle monitoring electrodes are not recommended.
The lead of Radio-Frequency electrode is the shorter is the better not to make loops between other
leads. For this reason Using device that apply to EMC(Electro-magnetic Compatibility) is strongly
recommended.
4) Set the output to the lowest level which can achieve the desired operation effect, and then
gradually increase the output volume to the desired level.
5) Prior to use, check the equipment-whether it has a problem.
6) Power voltage and frequency must be supplied in a stable manner within the designated range on
product rear side. However, the output may vary depending on power. If the wall outlet voltage in the
hospital exceed the designated range by ± 5%, the equipment should be calibrated again by
manufacturer or supplier.
If the power frequency in the hospital different from the designated range, the equipment should be
calibrated again, too. Please refer to product label on the back for exact power usage.
7) Considering its cooling feature, continuous output can result in abnormal operation of the product.
Be sure duty cycle.
8) A short circuit that might occur between electrodes during activating output will damage the product.
9) The Failure of the HF SURGICAL EQUIPMENT could result in unintended increase of output power.
10) Do not reuse disposable accessories.
11) All accessories has to be always keep disinfected when you use, especially metal parts which is
contacting with the patient's body
1) Please do operate the unit by the instructed order.
The following rules must be observed and always pay keen attention.
2) Do not open or disassemble the unit.
- The repairing and circuit change of this equipment must only be handled by those who have
been authorized by DAIWHA Corporation, LTD .
3) The unit is designed to be used at intervals.
Duty cycle ; 10 sec On, 30 sec Idle
4) When installing the unit,
Do not locate the unit the place where easily affected by shock, impact & etc.(including the times of
movement & transportation). Do not locate the unit the place where easily affected by
temperature, humidity, barometric pressure also. Keep clean always. At least one grounded
duplex wall receptacle and proper line voltage should be provided.
5) In using of electricity,
Connect the system AC line voltage after correct line voltage has been verified. Always check the
grounding. After using the unit, please be sure to main power off and get rid of the power cord.
6) How to prevent skin burn
① The entire area of the NEUTRAL ELECTRODE should be reliably attached to the PATIENTS
body and as close to the operating field as possible.
② The PATIENT should not come into contact with metal parts which are earthed or which have
an appreciable capacitance to earth(for example operating table supports, etc.). The use of

1. Precautions8
antistatic sheeting recommended for this purpose.
- It is good to spread ECG gel or cream to increase the effectiveness of firm contact on the
neutral electrode.
③ Areas subject to extreme perspiration-extremities lying against the body, or skin-to-skin
contact(arm/trunk, leg/leg, breast.) must be kept dry by placing sheets between them. It is
easily to get burnt when these parts are applied with other metal parts. Skin-to-skin contact (for
example the arms and body of the PATIENT) should be avoided, for example by insertion of
dry gauze.
The use of wet towel as conductive agents should not be used since they dry out, resulting in
high-frequency skin burn to the patient. Urine has to be discharged through catheter or
something.
④ Initial self-test
- First off, test the unit at very low RF power and then increase the RF power smoothly to
prevent any problem caused from improper touch or disconnection of neutral electrode at
normal RF power.
⑤ Do not use children's patient plate (neutral plate) for adults. You may increase the risk of
getting burn due to reduced contact size.
⑥Recommendation to position patient leads in such a way that contact with the patient or
other leads is avoided
⑦Instructions stating, use of bipolar techniques may be desirable in order to avoid
unwanted tissue damage for surgical procedures where hf current could flow through relatively
small cross-sectional area of body
⑧Instructions indicating the output power should be selected as low as possible for
intended purpose
7) Do not use cords as a handles ; damage to the insulation and increase of burnsor other injury
may result.
8) Use accessories, active and neutral electrodes provided by DAIWHA Corporation, LTD . in order to
avoid incompatibility and unsafe operation. If you intend to purchase accessories other than
those that DAIWHA Corporation, LTD. , please check that the accessories are CE certified for Electro-
surgical unit to make sure safety. Use CE certified accessories for patient contacting parts except
supplied by DAIWHA .
9) The cables to the surgical electrodes should be positioned in such a way that do not contact with

1. Precautions9
the PATIENT or other leads is avoided. Temporary unused ACTIVE ELECTRODES should be
stored so that they are isolated from the PATIENT.
10) For surgical procedures where the h.f. current flow through parts of the body having a relatively
small cross-sectional area, the use of bi-polar techniques may be desirable in order to avoid
unwanted coagulation.
11) Apparent low output or failure of the HF SURGICAL EQUIPMENT to function correctly at the
normal operating settings may indicate faulty application of the NEUTRAL ELECTRODE or poor
contact in its connections. In this case the application of the NEUTRAL ELECTRODE and its
connections should be checked before selecting higher power.
12) The supplier will make available on request circuit diagrams, component part lists, descriptions,
calibration instructions, or other information which will assist the USER's appropriately qualified
technical personnel to repair those parts of EQUIPMENT which are designed by the
manufacturer as repairable.
13) It may cause a malfunction when the unit is used in an environment that has strong magnetic
fields i.e. MRI room.
14) Do not use the unit other than your intended purpose. It may cause unexpected side effects.
15)Attention is called to the danger of ignition of endogenous gases
Sales &
Service Center
Address:
Tel :
Fax :
Website:
3, Yeoksam-ro 33-gil, Gangnam-gu, Seoul, Korea
[phone]∼6
[phone]
www.daiwha.com
Address:
Tel:
mdi Europa GmbHLangenhagener Str. 71
D-30855 Hannover-Langenhagen, Germany
[phone]

1. Precautions10
This is medical equipment.
DAIWHA Corporation
135, Donghwagongdan-ro, Munmak-eup, Wonju-si,
Gangwon-do, Korea
Product Name
Electrosurgical unit
Model
DT-400S/ DT-300S
Packaging Unit
1 Set
Purpose
Consistent infusion of medicine
Storage
Store at room temperature
Usages and Precautions
See the User Manual

1. Precautions11
1.5 Checklist before use
1) Check and clear away flammable gas or solvent.
2) Check the cable connection on the back panel of the unit.
3) Check that all accessories that have direct contact with patients are sterilized.
4) Check all accessories in order to prevent damage or malfunction of the unit.
5) Check the DRM function in order to prevent patients from burning due to wrong measurement
of contact size that happens at the time of unit troubles.
6) Check contact status between patient plate and patient.
1.6 Precautions during use
1) Check appropriateness when you change the existing settings, considering operation type and
biological tissue. Please refer to ‘7. Output Setting Guide,’ if necessary.
2) Make sure that patients do not touch grounded metals. It may cause partial burn.
3) Do not give long output to tissue areas or do not give approval high output beyond the need.
Manipulate output when electrode is always contacted with tissue to prevent tissue burn.
4) If the patient complains about electric shock, stop using the unit immediately and have it examined
thoroughly.
5) Frequently check contact status between patient plate and patient, especially when using a single
pad or using reusable plate as return electrode.
6) The sound volume should be at least the medium of level to prevent sound-recognition-fail caused
dangers.
1.7 Guidelines after use
1) Please sterilize reusable accessories before you keep in store.
2) Scrap disposable accessories in the prescribed regulations (according to the law). Scrap
disposable accessories in the way that there is no risk of contamination due to the used consumable
accessories.

2. Terms and Symbols12
2. Terms and Symbols
2.1 Terms
- The terms used in this User’s Manual is explained below.
- The terminology described below is limited to this User’s Manual and note that it may be
different from those generally used.
(1) Electro Surgical Unit (ESU)
- The ESU is a medical device that generates high-frequency current applied to body organs
to generate heat used for cutting and coagulation.
(2) Cutting or Cut
- It is a phenomenon of destroying cells by the heat (more than 100℃) that is produced as
applying the high-frequency current from the ESU to tissue.
(3) Coagulation (Coag. Or Co.) .
- It is a phenomenon that moisture in the cells dries off by the heat (60～90℃) produced
when the high-frequency current generated by the ESU is applied to an organ of the
human body.
(4) Bi-polar cutting output
- It is the output from the bipolar output jack when bipolar cut mode used.
(5) Bi-polar coagulation output
- It is the output from the bipolar output jack when bipolar coag. mode used.
(6) Mono-polar cutting output
- It is the output from the mono-polar output jack when pure mode or blend mode used.
(7) Mono-polar coagulation output
- It is the output from the mono-polar output jack when contact mode or spray mode used.
(8) D.R.M (Daiwha Return electrode Monitor)
- As a more advanced safety system than the old Return Electrode Alarm, D.R.M can avoid
the potential burn damage which may result from the little contact area of dual pad by grace
of its monitoring function.
(9) Active electrode
- It’s an electrode of the metal material that is connected to the terminal of the handle.
- It becomes the path by which the high-frequency current from the mono-polar output jack is
applied to the human body.
- Depending on the usage, a variety of shapes such as lancet, loop, needle, etc. are offered.
(10) Return electrode
- It is the electrode to return to the device the high-frequency current that is applied to the
human body through the active electrode.
- In general, it is called as ‘neutral plate’, patient plate, or pad. It designates the electrodes
connected to the neutral plate outlet.
※ Applied Parts : electode tip, neutral pad

2.2 Symbols
Caution - dangerous high voltage.
Hazardous electrical output.
Non -ionizing Radiation
Attention : See instructions for use
Off
(Power : Disconnection form the
mains)
Single Foil - used with electrodes
that do not monitor contact quality.
Dual Foil - used with electrodes that
do monitor contact quality.
Replace Fuse only with type and
rating as shown.
Pure Mode : Waveform with minimum
thermal damage and hemostasis.
Blend2 Mode : Cut waveform with
heavy hemostasis.
Forced Mode : Standard mode
mono -polar coagulation.
Spray Mode : Spray mode mono
polar coagulation.
2. Terms and Symbols
dangerous high voltage.
Hazardous electrical output.
Explosion Risk
flammable anesthetics.
ionizing Radiation
Equipotential Grounding
See instructions for use
Alternative Current
(Power : Disconnection form the
On
(Power : Disconnection to the
mains)
used with electrodes
that do not monitor contact quality.
used with electrodes that
do monitor contact quality.
Monitor Alarm :
alarm.
Mono -polar output is disabled.
only with type and
rating as shown.
Replace Fuse
rating as shown.
Waveform with minimum
thermal damage and hemostasis.
Blend1 Mode :
with moderate hemostasis.
Cut waveform with
heavy hemostasis.
Blend3 Mode :
with maximum hemostasis.
Standard mode
polar coagulation.
Soft Mode :
polar coagulation.
Spray mode mono -
polar coagulation.
Bi-polar Cut Mode :
bi-polar cutting.
Terms and Symbols13
Explosion Risk if used with
flammable anesthetics.
Equipotential Grounding
Alternative Current
(Power : Disconnection to the
Monitor Alarm : Return fault
polar output is disabled.
Replace Fuse only with type and
rating as shown.
Blend1 Mode : Cut waveform
with moderate hemostasis.
Blend3 Mode : Cut waveform
with maximum hemostasis.
Mode : Soft mode mono -
polar coagulation.
polar Cut Mode : Cut mode
polar cutting.

StandardMode:
polar coagulation.
Bi-polar Output :
Connection for bi
Unipolar Handle Output :
Connection for Unipolar hand bi
polar accessories
Inlet for bi -polar foot switch.
Defibrilation Proof
Type CF applied part
Single use.
Do not reuse.
Disposable.
Catalogue number
The manufacturer's catalogue number
shall be adjacent to the symbol.
Manufacturer
Date of Manufacture
2. Terms and Symbols
StandardMode: Standard mode bi -
polar coagulation.
Soft Mode :
coagulation.
polar Output :
Connection for bi -polar accessories
Hand Twin Switched Output :
Connection for hand Switched
mono -polar accessories
Unipolar Handle Output :
for Unipolar hand bi-
polar accessories
Return Electrode :
Connection for mono
dispersive electrode
polar foot switch.
Inlet for mono
Defibrilation Proof
Type CF applied part
RF Isolated :
are isolated from earth at high
frequency.
Protective earth
Catalogue number
The manufacturer's catalogue number
shall be adjacent to the symbol.
Serial number
Authorized
European Community
Date of Manufacture
Speaker Volume
Terms and Symbols14
: Soft mode bi -polar
coagulation.
Hand Twin Switched Output :
Connection for hand Switched
polar accessories
Return Electrode :
Connection for mono-polar
dispersive electrode
for mono -polar foot switch.
RF Isolated : Patient connections
are isolated from earth at high
Protective earth
Serial number
Authorized representative in
European Community
Speaker Volume

2. Terms and Symbols15
2.3 Controls, Indicators and Receptacles
- The names of the accessories that are used in this manual I explained
- Name and description of the accessories you want, because you only use in
this manual, may be different from the generally-class to name / description
there
1. DRM(Daiwha Return electrode Monitoring) Set
Indicator
Twinkles when Dual pad is selected but DRM
Setting Switch is not pressed yet. After DRM
Setting Switch is pressed, light goes on.
2. DRM Setting Switch
Push when in the Dual pad mode after a dual
pad electrode has been properly applied to the
patient and connected to the unit. Pressing this
switch notifies the unit that the present return
circuit resistance represents safe return
electrode placement and causes DRM Set
Indicator goes on.
The unit will then monitor the patient's resistance
and produce an alarm if the resistance rises by
more than 20+5%, or if a short is detected in the
patient circuit.
3. Single Pad or Dual Pad Selection Switch
Pressing this switch will select the Single Pad
return electrode or the Dual Pad return
electrode.
4. Bi -polar Mode Activation Indicator
This lamp lights on when the unit is activated in
Bi -polar modes
5. Mono -polar Cut Mode Activation Indicator
This lamp lights on when the unit is activated in
Mono -polar cut modes
6. Mono -polar Coagulation Mode Activation
Indicator
This lamp lights on when the unit is activated in
Mono -polar coagulation modes
7. Bi -polar Power Increase Switch
Increases the output power level of the Bi -polar
mode when depressed.
8. Bi -polar Power Decrease Switch
Decreases the output power level of the Bi -polar
mode when depressed.

2. Terms and Symbols16
9. Mono -polar Cut Power Increase Switch
Increases the output power level of the selected
cut mode when depressed
10. Mono -polar Cut Power Decrease Switch
Decreases the output power level of the
selected cut mode when depressed
11. Mono -polar coagulation Power Increase Switch
Increases the output power level of the
selcteed coagulation mode when depressed
12. Mono -polar coagulation Power Decrease
Switch
Decreases the output power level of the
selected coagulation mode when depressed
13. Bi -polar Power Digital Display
Indicates the Bi -polar power level set via Bi -
polar Power Level Controls.
14. Mono -polar Cut Power Digital Display
Indicates the Mono -polar cut power level set via
Mono -polar Cut Power Level Controls.
15. Mono -polar coagulation Power Digital Display
Indicates the Mono -polar coagulation power
level set via Mono -polar coagulation Power
Level Controls.
16. Bi -polar Cut Mode Indicator
Illuminates when Bi -polar cut mode has been
selected.
17. Bi -polar Coagulation Mode Indicator
Blink when Bi -polar standard coagulation mode
has been selected.
Illuminates(Not blink) when Bi -polar soft
coagulation mode has been selected.
18. Mono -polar Pure Cut Mode Indicator
Illuminates when Mono -polar pure cut mode
has been selected.
19. Blend 1 Cut Mode Indicator
Illuminates when Mono -polar Blend 1 cut mode
has been selected.
20. Blend 2 Cut Mode Indicator
Illuminates when Mono -polar Blend 2 cut mode
has been selected.
21. Blend 3 Cut Mode Indicator
Illuminates when Mono -polar Blend 3 cut mode
has been selected.
22. Contact Coagulation Mode Indicator
Illuminates when Mono -polar contact
coagulation mode has been selected.
23. Spray Coagulation Mode Indicator
Illuminates when Mono -polar Spray
coagulation mode has been selected.
24. Bi -polar Cut Mode Select Switch
Selects Bi -polar cut mode by pressing the
switch.
25. Bi -polar Coagulation Mode Select Switch
Selects Bi -polar Coagulation mode by pressing
the switch.
26. Mono -polar Pure Mode Select Switch
Selects Mono -polar pure mode by pressing the
switch.
27. Blend 1 Mode Select Switch
Selects Mono -polar blend 1 mode by pressing
the switch.
28. Blend 2 Mode Select Switch
Selects Mono -polar blend 2 mode by pressing
the switch.
29. Blend 3 Mode Select Switch
Selects Mono -polar blend 3 mode by pressing
the switch.
30. Contact Coagulation Mode Select Switch
Selects contact coagulation mode by pressing
the switch.
31. Spray Coagulation Mode Select Switch
Selects Spray coagulation mode by pressing the switch.
32. Return Fault Indicator
Twinkles when the unit detects a problem in the return electrode circuit.
In the DUAL pad mode, it will illuminates when a return electrode cable is open or shorted. It will
illuminates either when patient resistance exceed safety range.
In the SINGLE pad mode, it will illuminates when a return electrode cable is open.
The unit will not produce Mono -polar energy when this indicator illuminates.
33. Bi -polar RF power Outlet
Bi -polar output, activated by Bi -polar switch,
appears between this jacks.
We call this Bi-polar Outlet .
34. Mono -polar RF power Outlet 1
For hand switchable Mono -polar accessories.
No hand switchable Mono -polar accessories or
Mono -polar coagulating forceps may be used
by connecting to long distance terminals in one

2. Terms and Symbols17
jack.
We call this Monopolar Outlet 1.
36. Mono -polar RF power Outlet 2
For hand switchable Mono -polar accessories.
No hand switchable Mono -polar accessories or
Mono -polar coagulating Forceps may be used
by connecting to long distance terminals in one
jack.
We call this Monopolar Outlet 1.
37. Return Electrode Inlet
This jack accepts a standard return electrode
plug.
38. Sound Volume Controller
39. Bi -polar Foot Switch Inlet
Is a 3 -pin threaded connector designed to
accept plugs attached to any two treadle mono -
polar foot switch available from DAIWHA.
40. Mono -polar Foot Switch Inlet
Is a 3 -pin threaded connector designed to
accept plugs attached to any two treadle
mono -polar foot switch available from
DAIWHA.
41. Main Inlet with Main Fuse case
Supplies ac main power to the unit. It only
should be connected to a source o f power
corresponding to that listed on the Patcher
attached right by. A detachable power cord with
a standard 3 -prong are supplied with unit. The
fuses in main fuse box provide Dual -pole power
line overload protection.
42. Equipotential Grounding
Is Chassis ground connection for additional
protection against low frequency risk current.
43. Assist Resistance Indicator
This red LED bar graph is a visual indicator of
patient resistance measured between the
contacts of the return electrode. The number of
red bars illuminated increases with decreasing
resistance and may be used as an aid in
detecting high risk patients. The Assist
Resistance Indicator will light 3 to 8 bars when
the patient's return electrode resistance is within
range.
44. Single Pad Mode Indicator
Illuminates when the Single pad mode is
selected.
45. Dual Pad Mode Indicator
Illuminates when the Dual pad mode is
selected.
46. Main Power Switch
Turns unit on and off.
47. Output Path Selector
This Switch change the path of RF Output
activated by Mono -polar Foot Switch to
Monopolar Outlet 1 or 2

2. Terms and Symbols18
2.4 Accessories
No.
Name
Size
Manufactured by
1
Re-usable Bipolar Forceps
-
TECNO in Pakistan
2
Re-usable Bipolar Forceps Cable
4 [m]
Myung Electronics Co., Ltd. in
Korea
3
Re-usable TBH Pencil
4 [m]
Shining World Health Care CO.,
LTD. in Taiwan
4
Disposable Single Pad
-
BIOPROTECH in Korea
5
Disposable Dual Pad
-
BIOPROTECH in Korea
6
Pad Cable
4 [m]
Shining World Health Care CO.,
LTD. in Taiwan
7
Double Foot Switch
4 [m]
KEM Co., Ltd. In Korea
8
Power Cord
4 [m]
Myung Electronics Co., Ltd. in
Korea
9
Metal Plate
-
Daiwha Corp., Ltd.
10
Rubber Plate
-
Daiwha Corp., Ltd.
2.5 Labels – Instruction for use
- Label of Equipment for product information
Material : Polyesterfilm
Size : 55 x 65 mm (W x D)

3. Specifications19
3. Specifications
3.1 Specifications
Product Name
Electrosurgical Equipment
Model
DT-400S/300S
Purpose
Cutting or coagulation of biological tissue using high-frequency current
Mains and Line
Frequency
120(60Hz) or 230VAC(±10%) (50 or 60Hz)/switchable
See the label on rear side for correct information
Fuses
Two of F5.0A, 250V for 230VAC
Two of F10.0A, 250V for 115 VAC
Power Consumption
900VA
Protection Class
Class 1, Type CF
IPX
Foot Switch: IPX6
Carrier Frequency
400 KHz ±10%, 482KHz ±10%
Repeat Frequency
33KHz
Low Freq. Leakage
Current
EN60601-1 [2012] Requirement
High Freq. Leakage
Current
Less than 150mA
Operation Conditions
10℃～40℃, 30%～ 85％ noncondensing, 700mbar～1060mbar
Storage Conditions
-10℃～60℃, 30%～ 95％ noncondensing, 700mbar～1060mbar
Transportation
Conditions
-10℃～60℃, 30%～ 95％ noncondensing, 700mbar～1060mbar
Do not drop the unit from higher than 50cm
Do not use the hook.
Installation
Conditions
5cm clearance required on each side unit for cooling
Cooling
1 fan mounted
Recommended Duty
Cycle
10 sec ON, 30 sec, OFF(Output for 10 seconds, pause for 30 seconds )
Size (H, W, D)
147mmx 330mm x 417mm
Weight
About 16Kg
APG
Not AP/APG device
Equipment not suitable for use in the presence of a flammable anesthetic
mixture with or with oxygen or nitro oxide
Operation Sound
Difference in operation sounds between cutting and coagulation.
Operation Display
Visible difference in operations between cutting and coagulation.
Output Setting
Displayed in [W] unit from Seven Segment (LED number displayer)
※ It can be changed without notice to improve performance.

3. Specifications20
3.2 Operating Modes and Output Parameters
(DT-400S) Tolerance:±20%
Mode
Carrier Frequency
(㎑)
Repeat
Frequency(㎑)
Output RF Power
(W)
Load Resistance(Ω)
Pure mode
400
-
400
500
Blend1 mode
400
33
320
300
Blend2 mode
400
33
240
300
Blend3 mode
400
33
160
300
Forced mode
400
33
120
300
Soft mode
400
33
120
300
Spray mode
400
33
100
500
Cut mode
482
-
100
200
Standard mode
482
-
100
100
Soft mode
482
-
80
100
(DT-300S) Tolerance:±20%
Mode
Carrier Frequency
(㎑)
Repeat
Frequency(㎑)
Output RF Power
(W)
Load Resistance(Ω)
Pure mode
400
-
300
500
Blend1 mode
400
33
300
300
Blend2 mode
400
33
220
300
Blend3 mode
400
33
140
300
Forced mode
400
33
100
300
Soft mode
400
33
100
300
Spray mode
400
33
100
500
Cut mode
482
-
100
200
Standard mode
482
-
100
100
Soft mode
482
-
80
100
3.3 Functions
1) Good linearity and stabilization of output power by microprocessor.
2) EMC design that is in accord with EN60601-1-2 [2001] and EN60601-2-2 [2001].
3) Remote Control using two Hand pieces (Selection between cutting and coagulation)
4) Selection between cutting and coagulation by Foot switch (Can be also used as an
exclusive switch for laparoscope.