Bovie AARON 2250 User manual

iService Guide • Aaron 2250
SERVICE GUIDE

This Service Guide and the equipment it describes are for qualified technicians who maintain and repair the Aaron
2250 Electrosurgical Generator. Additional User information is available in the Aaron 2250 User’s Guide.
This document covers technical descriptions of the Aaron 2250 including its physical appearance, all operator
controls and indications, operational specifications, component functional descriptions (module level), diagrams
of the electronic circuits used, and troubleshooting guidelines (with chart comparisons).
The Aaron 2250 was constructed with the highest quality components, and was built in an ISO 9001 registered
environment. In the unlikely event that your generator fails within one year of purchase date, Aaron Medical will
warranty the product and effect factory repairs. Please refer to Appendix A Warranty for what is covered, length of
coverage, and Obtain a Return Authorization Number in Section 8.
Equipment Covered in this Manual
Aaron 2250:
Reference No: A2250
For Information Contact
Aaron Medical • 7100 30th Ave. N. • St. Petersburg, FL 33710-2902
U.S. Phone [phone] Fax [phone] • International Phone [phone] Fax [phone]
www.aaronmed.com • [e-mail]
EC Representative: Crownhouse
Hornbeam Square North
Harrogate, HG2 8PB UK
Phone [phone]
Made in USA
Printed in USA
©2003 Aaron Medical. All rights reserved. Contents of this publication may not be reproduced without the written
permission of Aaron Medical.
ii Aaron Medical

SAFETY PRECAUTIONS WHEN OPERATING THE GENERATOR
The safe and effective use of electrosurgery depends to a large degree on factors solely under the control of the
operator. There is no substitute for a properly trained and vigilant medical staff. It is important that they read,
understand, and follow the operating instructions supplied with this electrosurgical equipment.
To promote the safe use of the Aaron 2250, please refer to the User’s Guide for standard operating precautions.
APPLICABLE SAFETY STANDARDS
CSA C22.2, NO. 601.1 - M90
UL 2601 - 1 - UL
IEC 60601 - 2 - 2 (2001-09) Part 1-2
CENELEC EN 60601 - 1 Part 1
IEC 60601 - 2 - 2 (1998-09) Part 2-2
IEC 60601 - 1 Part 1
CONVENTIONS USED IN THIS GUIDE
WARNING:
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION:
Indicates a hazardous situation which, if not avoided, may result in minor or moderate injury.
NOTICE:
Indicates an operating tip, a maintenance suggestion, or a hazard that may result in product
damage.
iiiService Guide • Aaron 2250

TABLE OF CONTENTS
Equipment Covered in this Manual.............................................................................ii
For Information Contact ..............................................................................................ii
Safety Precautions When Operating the Generator ..........................................................iii
Applicable Safety Standards..............................................................................................iii
Conventions Used in this Guide.........................................................................................iii
The Aaron 2250......................................................................................................................1-1
Functional Description.....................................................................................................1-2
Unit Description ...............................................................................................................1-3
Safety Precautions When Repairing the Generator........................................................1-3
General Warnings, Cautions, and Notices ..............................................................1-3
Active Accessories...................................................................................................1-4
Fire / Explosion Hazards .........................................................................................1-4
Generator Electric Shock Hazards ..........................................................................1-5
Servicing..................................................................................................................1-5
Cleaning ..................................................................................................................1-5
Controls, Indicators, and Receptacles ................................................................................2-1
Front Panel......................................................................................................................2-2
Controls and Indicators Overview ...................................................................................2-3
Symbols on the Front Panel....................................................................................2-4
Cut and Blend Controls ...........................................................................................2-5
Coag Controls..........................................................................................................2-6
Bipolar Controls .......................................................................................................2-7
Indicators .................................................................................................................2-8
Power Switch and Receptacles...............................................................................2-9
Rear Panel ....................................................................................................................2-10
Symbols on the Rear Panel ..................................................................................2-10
Technical Specifications.......................................................................................................3-1
Performance Characteristics ...........................................................................................3-2
Input Power .............................................................................................................3-2
Duty Cycle ...............................................................................................................3-2
Dimensions and Weight ..........................................................................................3-2
Operating Parameters .............................................................................................3-2
Transport and Storage.............................................................................................3-2
Audio Volume ..........................................................................................................3-3
Return Electrode Sensing .......................................................................................3-3
Low Frequency (50-60 Hz) Leakage Current..........................................................3-3
High Frequency (RF) Leakage Current...................................................................3-4
Standards and IEC Classifications..................................................................................3-4
Class I Equipment (IEC 60601-1) ...........................................................................3-4
Type CF Equipment (IEC 60601-1) / Defibrillator Proof..........................................3-4
Drip Proof (IEC 60601-2-2) .....................................................................................3-4
Electromagnetic Interference...................................................................................3-4
Electromagnetic Compatibility (IEC 60601-1-2 and IEC 60601-2-2) ......................3-4
Voltage Transients (Emergency Generator Mains Transfer)...................................3-4
Output Characteristics.....................................................................................................3-5
Maximum Output for Monopolar and Bipolar Modes ..............................................3-5
Output Power Curves ..............................................................................................3-6
Output Waveforms...................................................................................................3-9
iv Aaron Medical

Theory Of Operation .............................................................................................................4-1
Block Diagram .................................................................................................................4-2
Functional Overview of Key Circuits ...............................................................................4-2
Controls and Indicators ...........................................................................................4-2
Activation Sense Circuits (5) ..................................................................................4-2
Temperature Sensing Circuits (3)............................................................................4-3
Neutral Electrode Monitoring Circuit (NEM) ............................................................4-3
Footswitch Sensor Circuits (2) ...............................................................................4-3
Input Voltage............................................................................................................4-3
Display Control Circuits ...........................................................................................4-3
Control Circuit..........................................................................................................4-4
Power Factor Correction Circuit (PFC) ...................................................................4-4
Power Supply ..........................................................................................................4-4
Switch Mode Power Supply Circuit (SMPS)............................................................4-4
Auxiliary Relay ........................................................................................................4-4
Speaker Circuit .......................................................................................................4-4
RF Drive .................................................................................................................4-4
HV Relay .................................................................................................................4-4
Output......................................................................................................................4-4
Sense and Backup Sense Circuits..........................................................................4-4
Controls and Indicators ...................................................................................................4-5
Aaron 2250 Control Signal Inputs and Outputs ..............................................................4-5
Operating the Aaron 2250 ....................................................................................................5-1
Inspecting the Generator and Accessories .....................................................................5-2
Service Personnel Safety................................................................................................5-2
Installation and Placement ..............................................................................................5-3
Functional (Operational) Checks.....................................................................................5-3
Operating the Unit ...................................................................................................5-3
Preparing for Monopolar Surgery............................................................................5-4
Applying the Return Electrode.................................................................................5-4
Connecting Accessories ..........................................................................................5-4
Preparing for Bipolar Surgery..................................................................................5-4
Activating the Unit ...........................................................................................................5-5
Maintaining the Aaron 2250 .................................................................................................6-1
Cleaning ..........................................................................................................................6-2
Periodic Inspection ..........................................................................................................6-2
Fuse Replacement ..........................................................................................................6-2
Fuse Replacement on the Main PCB..............................................................................6-3
Main PCB Fuse Information ....................................................................................6-3
Troubleshooting ....................................................................................................................7-1
Recommended Equipment for Troubleshooting..............................................................7-2
Troubleshooting the Aaron 2250 .....................................................................................7-2
Inspecting the Generator.........................................................................................7-2
Inspecting the Receptacles .....................................................................................7-2
Inspecting Internal Components..............................................................................7-3
Understanding Error Codes and Audio Tones.................................................................7-4
Correcting Common Problems ........................................................................................7-5
Main Board Test Points ...................................................................................................7-9
Display Board Test Points ...............................................................................................7-9
vService Guide • Aaron 2250

Repair Policy and Procedures .............................................................................................8-1
Responsibility of the Manufacturer..................................................................................8-2
Returning the Generator for Service ...............................................................................8-2
Step 1 – Obtain a Returned Goods Authorization Number.....................................8-2
Step 2 – Clean the Generator .................................................................................8-2
Step 3 – Ship the Generator ...................................................................................8-2
Warranty ................................................................................................................................A-1
Board Drawings, schematics, & Assemblies .....................................................................B-1
How to Order Parts from Aaron Medical.........................................................................B-2
Aaron 2250 Design Breakdown and Drawing Reference...............................................B-2
Aaron Drawing and Schematic Package ........................................................................B-4
LIST OF FIGURES
Figure 2 – 1 Layout of controls, indicators, and receptacles on the front panel..................2-2
Figure 2 – 2 Controls for the Cut and Blend modes............................................................2-5
Figure 2 – 3 Controls for the Coag mode ............................................................................2-6
Figure 2 – 4 Controls for the Bipolar mode..........................................................................2-7
Figure 2 – 5 Indicators for power, return electrodes, and footswitch control.......................2-8
Figure 2 – 6 Location of the unit power switch and front panel receptacles .......................2-9
Figure 2 – 7 Layout of connectors and controls on the rear panel....................................2-10
Figure 3 – 1 Output power vs impedance for Cut mode......................................................3-6
Figure 3 – 2 Output power versus impedance for Blend mode, set at Minimum. ...............3-6
Figure 3 – 3 Output power versus impedance for Blend mode, set at Maximum ...............3-7
Figure 3 – 4 Output power vs impedance for Coagulation mode........................................3-7
Figure 3 – 5 Output power vs impedance for Fulguration mode .........................................3-8
Figure 3 – 6 Output power vs impedance for Bipolar mode................................................3-8
Figure 3 – 7 Cut set to 200 W, at no load, open..................................................................3-9
Figure 3 – 8 Cut set to 200 W, actual power 200 W at 300 ohm load ................................3-9
Figure 3 – 9 Blend minimum set to 200 W, at no load, open ............................................3-10
Figure 3 – 10 Blend minimum set to 200 W, actual power 200 W at 300 ohm load ...........3-10
Figure 3 – 11 Blend maximum set to 200 W, at no load, open ...........................................3-11
Figure 3 – 12 Blend maximum set to 200 W, actual power 200 W at 300 ohm load ..........3-11
Figure 3 – 13 Coagulation set to 120 W, at no load, open..................................................3-12
Figure 3 – 14 Coagulation set to 120 W, actual power 120 W at 500 ohm load.................3-12
Figure 3 – 15 Fulguration set to 80 W, at no load, open .....................................................3-13
Figure 3 – 16 Fulguration set to 80 W, actual power 80 W at 500 ohm load......................3-13
Figure 3 – 17 Bipolar set to 80 W, at no load ......................................................................3-14
Figure 3 – 18 Bipolar set to 80 W, actual power set to 200 W load ....................................3-14
Figure 4 – 1 Functional Block Diagram of the Aaron 2250 system. ....................................4-2
Figure 6 – 1 Fuse holder......................................................................................................6-2
Figure 6 – 2 Fuse location ...................................................................................................6-3
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viiService Guide • Aaron 2250
BOARD DRAWINGS AND SCHEMATICS
Main Board Schematic Block Diagram ...................................................................................B-5
Power Factor Circuit ...............................................................................................................B-6
Power Supply Circuit ..............................................................................................................B-7
SMPS Circuit...........................................................................................................................B-8
Power Generator Circuit .........................................................................................................B-9
High Voltage Relays Circuit ..................................................................................................B-10
Current / Voltage Sensors Circuit..........................................................................................B-11
Current / Voltage Sensors (Backup) Circuit..........................................................................B-12
Audio Amplifier Circuit...........................................................................................................B-13
Display Block Diagram..........................................................................................................B-14
System Logic Circuit .............................................................................................................B-15
Display Control Circuit ..........................................................................................................B-16
Neutral Electrode Monitoring Circuit .....................................................................................B-17
Analog to Digital Converter Circuit .......................................................................................B-18
Request Sense Hand Cut Circuit..........................................................................................B-19
Request Sense Hand Coag Circuit.......................................................................................B-20
Request Sense Foot Cut Circuit ...........................................................................................B-21
Request Sense Foot Coag Circuit ........................................................................................B-22
Request Sense Foot Bipolar Circuit .....................................................................................B-23
Foot Monopolar Contact Circuit ............................................................................................B-24
Foot Bipolar Contact Circuit..................................................................................................B-25
Silkscreen for Main PCB for Component Locations .............................................................B-26
Silkscreen for Top of Display PCB for Component Locations ..............................................B-27
Silkscreen for Bottom of Display PCB for Component Locations.........................................B-28
Silkscreen for Relay PCB for Component Locations............................................................B-29
Final Assembly Overview......................................................................................................B-30
Cabling in Assembly .............................................................................................................B-31
Mechanical Front Panel Assembly........................................................................................B-32
Mechanical Back Panel Assembly........................................................................................B-33
Cabling Back Panel Assembly..............................................................................................B-34

viii Aaron Medical

1-1Service Guide • Aaron 2250
THE AARON 2250
This section includes the following information:
●●Functional Description
●●Unit Description
●●Safety Precautions when Repairing the Generator
CAUTIONS:
Read all warnings, cautions, and instructions provided with this generator before using.
Read the instructions, warnings, and cautions provided with electrosurgical accessories before
using. Specific instructions are not included in this manual.

FUNCTIONAL DESCRIPTION
The Aaron 2250 is a multipurpose electrosurgical generator for use in physician’s offices and surgi-centers. This unit
offers unsurpassed performance, flexibility, reliability, and user convenience.
The Aaron 2250 includes digital technology. This new technology is evident in the self-checking circuitry and error
code readouts. The unit offers monopolar and bipolar electrosurgical operations.
The following are Aaron 2250 key advantages and benefits:
•Power Capabilities
Up to 200 watts of pure cut in the Cut mode @ 300 Ω
Up to 200 watts of Blend @ 300 Ω
Up to 120 watts of Pinpoint @ 500 Ω
Up to 80 watts of Spray @ 500 Ω
Up to 80 watts of Bipolar @ 150 Ω
•Cut Mode
The cut mode gives the surgeon flexibility to cut all types of tissue without losing performance.
The Cut mode generates constant output power over a wide range of impedances. Refer to the Technical
Specifications section of this guide.
•Blend with 10 Settings
The Blend mode is a combination of Cutting and Hemostasis. The 2250 gives the surgeon freedom to adjust
the desired level of hemostasis. A setting of 1 is minimal blend with maximum cutting effect. A setting of 10 is
maximum hemostasis (blend) with minimal cutting effect. This adjustment is easily achieved by a incremental
adjustment. Refer to Section 2, Controls, Indicators, and Receptacles, Cut and Blend Controls . The Blend mode
improves the rate of targeted tissue desiccation without increasing the power delivered by the generator.
•Two levels of coagulation: Pinpoint and Spray
Pinpoint provides precise control of bleeding in localized areas.
Spray provides greater control of bleeding in highly vascular tissue over broad surface areas.
•Return electrode sensing and contact quality monitoring
The 2250 incorporates a return electrode contact quality monitoring system (Bovie NEM™). This system
detects the type of return electrode: solid or split. The system also continually monitors the contact quality
between the patient and the split return electrode. This feature is designed to minimize patient burns at the
return electrode site.
•FDFS™ (Fast Digital Feedback System)
The FDFS™ (Fast Digital Feedback System) measures voltage and current at 5,000 times a second and immediate-
ly adjusts the power to varying impedance during the electrosurgical procedure. The unit’s digital technology sens-
es and responds to changes in tissue and density. Unlike analog, this feature reduces the need to adjust power set-
tings manually.
NOTICE:
The Bovie NEM™ system recommends that you use a split return electrode.
•Isolated RF output
This minimizes the potential of alternate site burns.
•Standard connectors
These connectors accept the latest monopolar and bipolar instruments. Refer to Section 2, Controls, Indicators, and
Receptacles to learn more.
1-2 Aaron Medical

•Self diagnostics
These diagnostics continually monitor the unit to ensure proper performance.
UNIT DESCRIPTION
The Aaron 2250 is a self-contained unit, consisting of the main enclosure and power cord. The main components
incorporated in the generator include:
•Front Panel Components Power switch; membrane switches to control power output and mode selection;
receptacles for connecting electrosurgical accessories; and indicators that show the current settings, patient
return electrode status, and footswitch status.
•Rear Panel Components Volume control; bipolar and monopolar footswitch receptacles; power cable
receptacleand fuse holder; equipotential grounding stud; and remote accessory receptacle.
•Internal Components Display board; main board; speaker board; relay board; power supply; and cables.
SAFETY PRECAUTIONS WHEN REPAIRING THE GENERATOR
Before servicing the Aaron 2250, it is important that you read, understand, and follow the instructions supplied with
the generator. Also, be familiar with any other equipment used to install, test, adjust, or repair the generator.
General Warnings, Cautions, and Notices
WARNINGS:
Use the generator only if the self-test has been completed as described. Otherwise, inaccurate
power outputs may result.
The instrument receptacles on this generator are designed to accept only one instrument at a
time. Do not attempt to connect more than one instrument at a time into any given receptacle.
Doing so will cause simultaneous activation of the generator.
CAUTIONS:
Do not stack equipment on top of the generator or place the generator on top of any electrical
equipment. These configurations are unstable and/or do not allow adequate cooling.
Provide as much distance as possible between the electrosurgical generator and other electronic
equipment (such as monitors). An activated electrosurgical generator may cause electrical interfer-
ence with them.
Do not turn the activation tone down to an inaudible level. The activation tone alerts the surgical
team when an accessory is active.
NOTICES:
If required by local codes, connect the generator to the hospital equalization (grounding)
connector with an equipotential cable.
Connect the power cord to a wall receptacle having the correct voltage. Otherwise, product
damage may result.
1-3Service Guide • Aaron 2250

Active Accessories
WARNINGS:
Shock Hazard - Do not connect wet accessories to the generator.
Shock Hazard - Ensure that all accessories and adapters are correctly connected and that no
metal is exposed.
CAUTIONS:
Accessories must be connected to the proper receptacle type. In particular, bipolar accessories
must be connected to the Bipolar Instrument receptacle only. Improper connection may result in
inadvertent generator activation.
Set power levels to the lowest setting before testing an accessory.
NOTICE:
During bipolar electrosurgery, do not activate the generator until the forceps have made contact
with the patient. Product damage may occur.
Fire / Explosion Hazards
WARNINGS:
Explosion Hazard – Do not install the generator in the presence of flammable anesthetics, gases,
liquids, or objects.
Fire Hazard – Do not place active accessories near or in contact with flammable materials (such
as gauze or surgical drapes). Electrosurgical accessories that are activated or hot from use can
cause a fire. Use a holster to hold electrosurgical accessories safely away from personnel and
flammable materials.
Fire Hazard – Do not use extension cords.
Fire Hazard – For continued protection against fire hazard, replace fuses only with fuses of the
same type and rating as the original fuse.
1-4 Aaron Medical

Generator Electric Shock Hazards
WARNINGS:
Connect the generator power cord to a properly grounded receptacle. Do not use power plug
adapters.
Do not connect a wet power cord to the generator or to the wall receptacle.
To allow stored energy to dissipate after power is disconnected (caps discharge), wait at least five
minutes before replacing parts.
Always turn off and unplug the generator before cleaning.
Do not touch any exposed wiring or conductive surfaces while the generator is disassembled and
energized. Never wear a grounding strap when working on an energized generator.
When taking troubleshooting measurements use appropriate precautions such as using isolated
tools and equipment, using the “one hand rule,” etc.
Potentially lethal AC and DC voltages are present in the AC line circuitry, high voltage DC circuitry,
and associated mounting and heat sink hardware described in this manual. These potentials are
not isolated from the AC line. Take appropriate precautions when testing and troubleshooting this
area of the generator.
High frequency, high voltage signals that can cause severe burns are present in the RF output
stage and in the associated mounting and heat sink hardware. Take appropriate precautions when
testing and troubleshooting this area of the generator.
Servicing
CAUTIONS:
Read all warnings, cautions, and instructions provided with this generator before servicing.
The generator contains electrostatic-sensitive components. When repairing the generator, work
at a static-control workstation. Wear a grounding strap when handling electrostatic-sensitive
components, except when working on an energized generator. Handle circuit boards by their
nonconductive edges. Use an anti-static container for transport of electrostatic-sensitive
components and circuit boards.
Cleaning
NOTICE:
Do not clean the generator with abrasive cleaning or disinfectant compounds, solvents, or other
materials that could scratch the panels or damage the generator.
1-5Service Guide • Aaron 2250

1-6 Aaron Medical

2-1Service Guide • Aaron 2250
CONTROLS, INDICATORS, AND RECEPTACLES
This section describes:
●●The Front Panel
●●Controls and Indicators Overview
●●The Rear Panel

FRONT PANEL
Figure 2 – 1 Layout of controls, indicators, and receptacles on the front panel
2-2 Aaron Medical

CONTROLS AND INDICATORS OVERVIEW
Users may control most Aaron 2250 functions from the front panel. Each control is plainly marked and
colored on the front panel for quick reference. The volume control is located on the rear panel.
Normal operations involve activating the generator with either a front connected handswitch or footswitch.
The following components are the User Interface for the Aaron 2250.
Power Switch The rocker ON/OFF switch is located on the lower left
corner allows the 2250 to be shut off when the unit is not
in use.
Watts Displays (Cut, Coag, and Bipolar) These large power output displays report the generator’s
output power settings from 1 to 200 watts in the Cut
mode, 1 to 120 watts in the Coag mode, and 1 to 80 watts
in the Bipolar mode all in one, five, or ten watt incre-
ments (at the rated load). During operation, the displayed
number corresponds to the selected mode, indicating the
available generator power to the surgeon.
Membrane Power, Presets, The front panel overlay contains 10 membrane switches
& Function Switches (sometimes called matrix switches). There is a membrane
switch dedicated to each operational mode. These switches
toggle the unit between functions (Cut, Blend, Coagula-
tion, and Fulguration) and power settings (Cut, Coag, and
Bipolar) in watts and blend settings indicated by a maxi-
mum to minimum illuminated bar).
Visual LED Indicators Mode LEDs illuminate for Cut, Coag, Bipolar, Cut ,
Blend, Coagulation, and Fulguration settings on the front
of the unit.
The footswitch LEDs illuminates to indicate that the
monopolar or bipolar footswitch is connected to the unit.
The Power LED indicates if the unit is switched On.
The red Alarm LED indicates that the unit has detected
an error or no return electrode is attached to the
generator.
The green Return Electrode LEDs indicate the type of
return electrode sensed by the Bovie NEM™.
Audible Indicators An activation tone sounds whenever the 2250 is activated.
The volume may be adjusted up or down on the rear of
the unit.
An Alarm Siren sounds during all alarm conditions. The
volume of this alarm cannot be adjusted.
2-3Service Guide • Aaron 2250

Symbols on the Front Panel
2-4 Aaron Medical
SYMBOLS DESCRIPTION
Cut Controls
Cut Mode
Blend Mode
Coag Controls
Coagulation Mode
Fulguration Mode
Bipolar Controls
Bipolar Mode
Indicators
Split Return Electrode
Solid Return Electrode
Regulatory Symbology
Read instructions before use.
Defibrillator proof type CF equipment
RF Isolated – patient connections are isolated from earth at high frequency.
Power Switch and Handpiece Connectors
Return Electrode Receptacle
Caution High Voltage
Cut Mode
Coag Mode
Monopolar Handpiece Receptacle
Bipolar Mode
Bipolar Handpiece Receptacle

Cut and Blend Controls
Figure 2 – 2 Controls for the Cut and Blend modes
2-5Service Guide • Aaron 2250
NOTICE:
When selecting the Blend mode, the unit defaults to a setting of minimum blend (only the first bar
is illuminated).
Cut Power Control Buttons
Increases or decreases the Cut or
Blend power output in increments
of 1 to 10 watts.
Cut and Blend
Mode Selector
To ggles between
Cut and Blend
modes.
Blend Amount Indicator
Indicates the amount of
blend added in the Blend
mode. More bars illuminated
indicates more blend, divided
into 10 steps.
Blend Amount Control Buttons
Increases or decreases the amount
of blend (Level 1-10) added in the
Blend mode.
Cut Mode Indicator
Indicates when the
Cut mode is selected.
Blend Mode Indicator
Indicates when the Blend
mode is selected.
Cut Power Display (watts)
Indicates the power set for
the Cut / Blend mode.
Cut Activation Indicator
Illuminates when Cut or
Blend mode is activated.

Coag Controls
Figure 2 – 3 Controls for the Coag mode
2-6 Aaron Medical
Coag Power Display (watts)
Indicates the power set for
the Coag mode.
Coag Power Control Buttons
Increases or decreases the Coagulation
or Fulguration Coag power output in
increments of 1 to 10 watts.
Coag Activation Indicator
Illuminates when Coag
mode is activated.
Fulguration and
Coagulation Mode
Selector
Toggles between
Coagulation mode
and Fulguration mode.
Coagulation Mode Indicator
Indicates when the Coagulation
mode is selected.
Fulguration Mode Indicator
Indicates when the Fulguration
mode is selected.