Valleylab Force 30 40 User manual

Force

Service Manual

Force 30

Force 40

Valleylab Inc
5920	Longbow Drive, P.O.		Box 9015
Boulder, Colorado 80301		USA
For	service information	call:	1-800-255-8522	/	1-303-530-2300	/	TWX 910-940-2514

Copyright		©	Valleylab	Inc,	1992
All rights	reserved. Contents				of	this publication may not be reproduced	in	any form without the written
permission		of	Valleylab	Inc.

Foreword
The following service	instructions are for use only by personnel qualified to repair and service the
equipment described	in this manual.

Caution: Federal (USA) law restricts this device to sale by or on the order of a physician.

Effective

Date:

April

1992

Valleylab

Part

No.:

945

100

153

Equipment

covered

in

this manual:

Force

30,

40

Electrosurgical

Generators

110 — 120 V- nominal

220 — 240 V- nominal

(user

selected)

REM"

is a trademark

of Valleylab

Inc

PolyHesive®

is

a registered

trademark

of Valleylab

Inc

Purpose

And

Scope

This

Service

Manual

contains

information

required

to

calibrate,

troubleshoot,

maintain,

and

install

the Force 30 and Force

40 Electrosurgical

Generators.

Instructions

for

the

operation

of

the Force

generator

and cautions

and

warnings

concerning

electrosurgery

are

beyond

the scope of this manual.

The

reader

is

directed

to the

Force

30,40

Instruction

Manual

supplied

with

the

generator.

Limited

Warranty

Valleylab

Inc

warrants each

product

manufactured

by it to be free from

defects

in

material

and

workmanship

under

normal

use and service for the period(s) set

forth below.

Valleylab’s

obligation

under

this

warranty

is

limited

to

the repair

or

replacement,

at its sole option, of any product, or part thereof, which has been

returned

to

it

or

its Distributor

within

the

applicable time

period shown below

after delivery of the product

to

the

original

purchaser,

and

which

examination discloses,

to Valleylab’s

satisfaction, that the

product

is defective.

This

warranty

does

not apply to any

product,

or

part

thereof,

which

has been repaired or altered

outside Valleylab’s factory in a way

so as, in Valleylab’s judgment,

to

affect

its stability

or

reliability, or

which

has

been subjected to

misuse, neglect

or

accident.

The warranty periods for Valleylab’s products are as follows:

Electrosurgical

Generators

One Year from date of shipment.

Mounting

Fixtures (All Models)

One Year from date of shipment.

Footswitches

(All

Models)

One Year from date of shipment.

Patient

Return

Electrodes

Shelf life only, as stated on packaging.

Sterile

Disposables

Sterility

only,

as

stated on

packaging.

This

warranty

is in lieu of all other

warranties,

expressed

or

implied,

including,

without

limitation,

the warranties

of

merchantability and fitness for a particular purpose,

and

of all

other

obligations

or liabilities on the part of Valleylab.

Valleylab

neither

assumes

nor authorizes

any

other

person

to

assume

for

it

any

other liability in connection with the sale or

use of any of Valleylab's products.

Notwithstanding

any

other

provision

herein or

in any other document or

communication,

Valleylab's liability with respect to

this

agreement

and

products

sold

hereunder

shall be

limited to the aggregate purchase

price

for

the goods sold by Valleylab

to

customer.

There

are no

warranties

which

extend beyond the terms hereof.

Valleylab

disclaims any liability hereunder or

elsewhere

in

connection

with

the

sale

of

this

product,

for indirect

or consequential

damages.

This warranty and the rights and obligations hereunder shal]

be

construed

under

and governed by the laws

of the

State

of

Colorado,

USA.

The

sole

forum

for

resolving disputes arising under or relating in

any way to

this warranty

is the

District

Court

for

the

County

of Boulder,

State

of

Colorado.

Valleylab

Inc, its dealers and representatives,

reserve

the

right

to

make

changes

in equipment

built

and/or

sold by

them

at

any time without incurring any obligation to make

the

same

or

similar

changes

on

equipment

previously built and/or sold

by

them.

Table		of	Contents
Section1		Installation .................
Responsibility			of the Manufacturer ................
Environmental			Conditions .......................
Transport		and	Storage .................................
A		eeeeeeereerererere
Preparing the Generator for Use ..................
Power	Requirements ............................
Power	Plug	....................................
Proper	Grounding ..............................
Preoperational			Checkout ........................
Routine Maintenance and Inspections ..............
Cleaning Instructions ...........................
Recommended			Electrosurgical Accessories		..........
Reusable Pencil				Cleaning and
Reprocessing				Directions ......................
Cleaning
Ethylene Oxide (EtO) Processing ........................
Steam Autoclave				Processing ............................

ыыы

ND DNA

ο

DBA

RB

nA

Section		2	Performance			Specifications .
Output Configuration ...........................
Low Frequency Leakage (50-60 Hz) ...............
High	Frequency			Risk	Parameters .................
REM	Contact		Quality		Monitor ....................
Audio	Volume			.................................
Input	Power		Source .............................
Weight						4...
		...................................
Overall Dimensions .............................
Classification			..................................
Class I		Equipment ....................... per IEC 601 - 1
Type CF Equipment ......................per IEC 601-1
Defibrillator-Proof ...................................
Drip Proof per .............................IEC 601-1
Intermittent			Operation .................................
Force	30	Output		Waveform ......................
Force	30	Output		Characteristics ..................
Force	40	Output		Waveform ......................
Force	40 .......	Output ..........		Characteristics		-

JIA 00 00 00 00 00 00 00 00 00 LO LO

Section

3

Functional

Description

.....

Overview

.......

Microcontroller

Board

...........................

Microcontroller

/

Memory

/1/O .........................

Serial

Communication

on

the

IIC Bus ....................

Footswitch

Decoding

.................................

Watchdog Timer

.....................................

Voltage

Regulators ...................................

Display

Board

................

,................

7-Segment

LEDS

....................................

LED

Lamps

.........................................

REMLamp

......

κ

εν οκ

καν

κνν

¡11

LO

0000

0

Front

Panel

Buttons ..................................

REMSwitch .................

eee

Power Control

Pencil

Detector

..........................

Voltage

Regulators ...................................

Interface

Board

................................

¡AS

Handswitch

Key

Sense ................................

RF

Sense ........

,.........,........................

Dosage

Error ........................................

RF Sense / Dosage Error Gain Test ......................

REM Circuitry νεοκκ<

Voltage

Regulators ...................................

REM

Filter

Board

..............................

Power

Supply/RF

Board

.........................

AC

Line Hardware ...................................

LVDC

Power Supply

.................................

HVDC

Power

Supply

................

,................

ЕСОМ

ersnsee

Dosage

Error ........................................

Ton

Generation

.....................

,................

Clamp

Signals

.......................................

Load

Enable ........................................

23

23

23

23

24

25

25

26

26

26

26

27

27

27

28

28

28

29

29

29

30

31

32

33

34

34

RFOUutputStage .......................	000 010 e
Voltage Regulators ...................................

	Section		4	Descriptions Of Controls,			43
	Indicators, and Receptacles ........
	Introduction				,...........		43
				.......................			47
	Status				rr
						,.......	47
	Power	Controls
	Bipolar						48
							48
	Monopolar		Cut .................................
	Monopolar		Coag				48
							49
	Alarms ...........				0s
	Front	Panel		Receptacles .........................			50
	Rear	Panel		Functions ...........................			51

Section		5	Testing			And	Calibration .....			53
Recommended				Test Equipment			...................			53
General Test And Calibration Information ..........										54
Pretest	Inspection ..............................									54
Front	Panel					ω	νοκ	ρο νεο εοσ οσον κ κοκ εκ	εκν	54
Rear	Panel							ss..sse		55
			................................							55
Chassis Inspection ....................................
Power Up Self-Test .............................										55
Calibration			....................................							56
General Instructions								,............		56
										57
Setting Up		for		Calibration .......................
Multiplier		Offset			Calibration .....................					57
REM Filter			Board Calibration ....................							57
Calibration			Steps		...............................					58
Summary		Table			of the Calibration Steps ...........					62
Error	Codes		...................................							63
Section		6		Component			Replacement ....			67
Section7				Factory		Service		............		69
Returning the Generator for Service								...............		69
Returning			the	Force 30,		40 Generator ....................				69
Returning Circuit Boards and Other Subassemblies .........										69
Ordering		Replacement Parts ............................								69
Section8				Service		Parts List ..........				71
Display PCBA				.................................						71
Interface		PCBA			................................					72
Microprocessor PCBA ...........................										75
Power	Supply			PCBA ............................						76
REM	filter		PCBA ..............................							80
Section		9		Assemblies			and	Schematics ..		81
Electronic		Interface Between					Boards ...............			81
Cable #		1:	Low		Voltage	Interconnect		Cable ...............		81
Connector			#1:		Microcontroller		Board	to PSRF Board .......		82

List	of	Figures
Figure	2.1	Force 40 Output Power vs Load							.........	11
Figure	2.2	Force 30 Output Power vs Load							.........	15
Figure	2.3	Output Power vs Generator Setting ......								18
Figure	3.1	Functional			Block		Diagram ..			41
Figure	4.1	Force	40	Front		Panel		......
Figure	4.2	Force	30	Front		Panel		...... e... ..........		45
Figure	4.3	Rear	Panel		..............			ecos cs 0 0.		46
Figure	9.1	System		Interconnect				Diagram ...........		83
Figure	9.2	Interface Schematic						.......		84
Figure	9.3	Power	Supply/RF				Schematic			88
Figure	9.4	Display Board Schematic .. . e. ............								92
Figure	9.5	Microcontroller				Board		Schematic	........	95
Figure	9.6	REM	Filter		Board		Schematic		ss...	97

Service Centers

Valleylab inc

Boulder, Colorado, USA 800-255-8522

Valleylab Inc

Stamford, Connecticut, USA 800-843-2872

Valleylab Australia Prospect, AUSTRALIA 61-2-688-4888

Valleylab Benelux Nieuwegein, HOLLAND 31-3402-32456

Valleylab Canada

Ontario, CANADA 800-668-1832

Valleylab Europe, Middle East and Africa London, UNITED KINGDOM 44-081-961-9956

Valleylab France c/o CLIMO

Lyon, FRANCE 33—78—096262

Valleylab Germany Wichmannstrasse 4 Postfach 520452 D-2000 Hamburg 52 GERMANY 0049-4089- 6884

Valleylab UK

London, UNITED KINGDOM 44-081-961-9956

	IO		à
ATTENTION:	TYPE	CF EQUIPMENT	DRIP-PROOF
REFER TO THE	LOW	LEAKAGE
ACCOMPANYING	SUITABLE FOR CARDIAC		USE
DOCUMENTS	DEFIBRILLATOR-PROOF

F

THE GENERATOR IS

HIGH-FREQUENCY ISOLATED

PER IEC 601-2-2

Introduction

The Force

30 and Force 40 Electrosurgical Generators

are

designed

for

ceiling

or cart mounting.

The

models

available

in

this

Force

series

are:

Force 30,

Force

40,

and the Force 40S

(Simutaneous

Coag

feature).

All generators

are

configured

to

operate

at 220-240 V~

nominal.

A

kit

is available

from

Valleylab

to

convert the generator to

110-120

V-

operation.

The differences between the two major models are the

maximum

power

settings and the number

of

available

functions.

These

differences

are

summarized

in

the

following

tables.

Note:

“-”

indicates

the

mode

is not available on that particular

model.

Maximum

Power

Setting

(watts)

Mode

Force

40

Force

30

Pure

Cut

300

300

Blend

1

250

250

Blend

2

200

Desiccate

200

200

Fulgurate

150

150

Spray

Coag

150

Standard

Bipolar

50

50

Precise

Bipolar

50

50

Features

Feature

Force

40

Force

30

Handswitching

Outputs

2

2

Footswitching

Output

yes

yes

Simultaneous

Coag

option

Isolated

Outputs

yes

yes

Power

Control

yes

yes

Autoranging

REM

yes

yes

Blend

2

yes

Spray

Coag

yes

The Force 30, 40 generators are enclosed

in

the

same

metal and

molded

plastic

enclosure.

The

front

panel

contains

touch membrane

switches,

lighted indicators,

digital

displays, high

voltage output

receptacles, and

a

monopolar

footswitch

receptacle.

The rear panel contains the power entry module,

a

line voltage selector

switch,

a volume

control

potentiometer,

a

handle,

and

monopolar

and

bipolar footswitch

receptacles.

vi

Section

1

Installation

Notify Valleylab

to

arrange for

repair

or replacement

of

any parts damaged from shipping.

All

returns must have the approval from the Valleylab Customer Service Department. The return

authorization number must be displayed

on

the package

label.

Carefully remove the Force generator and

all accessories

from the shipping package.

Save

all

cartons and

packing

materials

to use

when

transporting

the generator or when

returning

it for

service.

If you have

any

questions

concerning

the

contents, contact Valleylab Customer Service at

1-800-255-8522

or

your

Valleylab representative.

Responsibility

of

the

Manufacturer

Valleylab Inc

is responsible for the effects

on safety,

reliability and performance

of the

equipment

only if:

—© assembly operations, extensions, readjustments, modifications or repairs are carried out by persons authorized by Valleylab Inc.

—	the	electrical installation	of the relevant room complies with local codes and requirements such
	as	IEC and BSI.

—the equipment is used in accordance with the instructions for use.

Environmental Conditions

Transport and Storage

Ambient Temperature: Between —40 and +70 degrees C.

Relative Humidity: Between 10% and 100%, noncondensing.

Atmospheric Pressure: Between 500 and 1060 millibar.

Operation

Ambient Temperature: Between +10 and +40 degrees C.

Relative Humidity: Between 30% and 75%, noncondensing.

Atmospheric Pressure: Between 700 and 1060 millibar.

Preparing

the

Generator

for

Use

The

electrosurgical

generator may

be placed

on a

mounting

cart

(available from Valleylab)

or be

to

installed

in a ceiling

mount

system.

It

is recommended

that

carts have

conductive

wheels.

Refer

hospital

procedures

or local

codes

for detailed information.

Provide

at least four

to

six

inches

of space

around

the

sides

and

top of

the

generator

for

convection

to

cooling.

Under

continuous

use

for

extended

periods of

time,

it is

normal

for

the top

and

rear panel

be

warm.

DANGER

Explosion

Hazard.

Do

not

install

the

electrosurgical generator in

areas

using

flammable

anesthetics, gases,

liquids,

or

objects.

Force 30, 40 Service Manual	1

Power

Requirements

The Force 30, 40 Electrosurgical

Generator

is designed

to

operate between

85

—

140

V~

or 170

-

280 V~,

50-60 Hz.

The output

will remain

constant over

the ranges

of 90-135

V~

or

180-270

V

~,

50-60 Hz.

Power

Plug

The

Force

generator

is

shipped with

a

hospital

grade

power

plug.

The

Valleylab

representative

in

your

country

will

equip

your Valleylab

generator with

the proper connector for your

operating

room,

if different

from

that

supplied.

The

connector

meets

all

requirements

for safe

grounding.

Its

purpose

should

not

be

defeated

by

using extension

cords

or

three-prong

to two-prong adapters.

The

power cord

assembly should

be

periodically inspected

by

qualified personnel.

Cords

should

always

be

grasped

by

the plug.

Do

not

pull

on the

cord

itself.

Proper

Grounding

An important

consideration

in

assuring patient

safety while

using

electrical

equipment

is

proper

grounding.

The

ground

wire

in

the

power

cable

is connected

to

the

chassis

and

insures

that no

dangerous

currents will

flow

from

the

cabinet

of the generator

in the event

of an

internal

electrical

failure.

Undesirable 50-60 Hz leakage currents are also

affected

by

the

polarization

of the input 50-60 Hz

power

to the

generator.

It is

the responsibility

of the user

to

assure

proper

grounding

and

polarity

in

the power

outlets

furnishing

power

to

the

Force

generator.

Preoperational Checkout

Refer to Section 5, Power Up Self-Test.

Routine		Maintenance				and	Inspections
Valleylab recommends				that	the	Force	generator be inspected	by gualified service		personnel twice	a
year.	This	Service Manual			describes		the recommended inspection, testing,		and	calibration
procedures.		For	major	repairs,		the generator can be returned		to Valleylab.	If desired, Valleylab		will
supply	any	parts	or information			needed to repair the Force generator.

Cleaning Instructions

Clean

the generator

using

standard

hospital

procedures.

Use

a

mild

detergent

and

damp

cloth

to

clean

the

generator

cover,

keyboard

and cord.

Do not allow fluids

to

enter

the chassis.

Do

not

use

alcohol,

caustic, corrosive,

or abrasive cleaning materials.

The

generator

cannot

be

sterilized.

2

Force

30,

40

Service

Manual

Recommended Electrosurgical Accessories

Valleylab E7507/E7509 REM PolyHesive II Patient Return Electrode

Valleylab E2515/E2516 Disposable Handswitching Pencil

Valleylab E2525 Reusable Handswitching Pencil

Valleylab E2517 Disposable Power Control Pencil

Valleylab Bipolar Forceps

Valleylab E2400 Disposable Insulating Holster

Valleylab E6008B Monopolar Footswitch

Valleylab E6009 Bipolar Footswitch

|

Force 30, 40 Service Manual

Reusable	Pencil	Cleaning	And	Reprocessing	Directions
(For Valleylab Reusable Handswitching Pencils)
NOTE
These directions are not intended			for electrosurgical accessories			not manufactured		by Valleylab.
Refer to the instructions provided by the manufacturer.
Cleaning
1. The pencil should be processed with other delicate surgical instruments in order								to	protect the
electronic	components.
2. If a disposable electrode has been			used	in the pencil, remove	and	discard. Remove			all	gross
matter (blood, mucus, tissue) by wiping the entire pencil with					a	cloth	or gauze pad		and	a	mild
cleaning	solution or	blood dissolving detergent. Remove any			cleansing		agents by	wiping			the
pencil with a water-dampened cloth.				Do not immerse the pencil		in reprocessing		solutions.

3. Dry thoroughly.

4.Sterilize the pencil using standard hospital procedures for Ethylene Oxide sterilization or steam autoclave sterilization, following the handling recommendations below.

Ethylene Oxide

(EtO)

Processing

1.

Coil the cord loosely prior

to inserting

the pencil

into

an

EtO

pouch. Tight “bunching”

or

wrapping

of the

cord

will

decrease the

useful

life

of the

pencil.

2.

Estimated

number of

uses

when reprocessed

by

this

method:

20

Steam Autoclave Processing

1. Do not autoclave the pencil unwrapped.

2. Lay the pencil body in the center of the wrapping material as shown. (Fig. 1)

3.Fold the material over the pencil body and proceed to coil the cord around the material lengthwise . (Fig. 2)

NOTE

Keep

the

pencil body, dord and

plug connector from contacting each

other

to prolong

the

life

of

the

pencil.

Do

not use rubber bands, string,

or tape to secure the cord.

4.

Apply

a

second

wrapping

material

to the

packet

produced

in

Step

2

above

(Fig.

3).

Tape

and

autoclave.

5.

Do

not

exceed

a

processing temperature

of

135°C

(275°F

)

for

20

minutes.

The

number

of

uses

will

be

reduced

when

this

product

is steam

autoclaved.

Recommended

wrapping

procedure

for

normal

autoclaving:

	11
	r:		KR
7	2k [|	|	T
Fig. 1	Fig.	2	Fig. 3

4

Force 30, 40 Service

Manual

Testing

During

surgical

procedure set

up,

inspect

product

and confirm product

function.

1.

Insert the pencil connector

into

the

appropriate

active

handswitch

receptacle

on

the

generator.

The

patient

return

electrode

must

be

in

place

on

the patient.

2.

Using the generator

front

panel

On/Off

switch,

turn

the

generator

On.

3.

The

generator will

conduct

a

self-test

and power

settings

will display

1 watt.

Do

not

press the

Reset button.

CAUTION

Set

Cut

and

Coag

power

settings

to the lowest

setting before

testing

the pencil.

INES

NOTE

Observe

the

generator.

If

an

error

code (119-122) appears

in the power setting displays and

a

tone

sounds,

this

indicates

a

malfunctioning accessory.

Discard the

pencil.

4.

Press the yellow Cut button

on the

pencil and verify that the yellow lamp

in the Cut mode

illuminates.

If the

blue

Coag

lamp

illuminates,

discard

the

pencil.

5.Press the blue Coag button on the pencil and verify that the blue lamp in the Coag mode illuminates. If the yellow Cut lamp illuminates, discard the pencil.

NOTE

If either the Cut or

Coag

lamp

does

not illuminate,

discard

the

pencil.

CAUTION

Inspect the pencil

and cord for breaks, cracks,

nicks, or other

damage

before

use.

If

injury or

damaged,

do not

use.

Failure

to observe

this

precaution

with

every

use may

result

in

electrical

shock to

the

patient

or

operating

room

personnel.

6. Place the generator

in

the

Off

mode

until

ready

for

surgery.

Force 30, 40 Service Manual	5

Force 30, 40 Service Manual

Section

2

Performance

Specifications

Specifications are

subject

to change

without

notice.

In this Section, "typical" refers

to a

specification

that

is within +

20%

of a

stated

value

at room

temperature (25° C) and nominal input power voltage.

Output

Configuration

Isolated

output.

Low

Frequency

Leakage

(50-60

Hz)

All patient-connected terminals tied together:

Source

Current

Polarity

Ground

Leakage

(110-120V~)

Leakage (220-240V-)

Normal

intact

«

10µΑ

<2.0

нА

Normal

open

<

100

pA

< 50

pA

Reverse

open

<

100

pA

<50

pA

High

Frequency

Risk

Parameters

Leakage

Monopolar

RF leakage

current

<

150

mA

RMS

Bipolar

RF

leakage current

<

50

mA

RMS

REM

Contact

Quality

Monitor

Measurement

Measurement

Acceptable

Resistance

Range

Frequency

Current

Single area

pad

Dual

area pad

70 +

5

kHz

<

10

mA

<

20

ohms

5

—

135 ohms

If the

impedance

measured is

outside

the

acceptance

range,

a REM

fault

condition

will occur.

In

the

REM

mode,

if resistance

increases

by

more

than

40%

above

the

nominal

value

or

135

ohms

resistance,

an alarm will be generated.

Audio

Volume

The

audio

keying tones

are adjustable.

The

alarm tones

are

not

adjustable.

Audio

Level

@

1 meter

Keying

Tone

45

to>

65

dBA

Alarm

Tone

(Fixed)

>

65 dBA

Force 30, 40 Service Manual

7

Input

Power

Source

Nominal

Voltage:

110-120 V

RMS

or

220-240

V

RMS

Regulation

Voltage

90-135

V

RMS

or

180-270

V

RMS

Operating

Range:

85-140

V

RMS

or

170-280

V

RMS

Current:

Idle

0.4

A,

max

.or

0.2

A,

max

Cut

7.0

A,

max

or

3.5

A,

max

Coag

4.0

A,

max

or

2.0

A,

max

Bipolar

2.0

A,

max

or

1.0

A,

max

Weight

20 Ib

(9.1

kg)

Overall

Dimensions

7.8 in.

H

x 16.lin.

W x

11.9

in. D

(199 mm

x

409 mm

x 303

mm)

Classification

Class

I Equipment

per

IEC

601-1

Protection against

electric shock

is

provided by connection

of accessible conductive

parts

to the

protective

earth conductor

in such

a way

that

they cannot

become

live in

the

event

of a

failure

of

basic

insulation.

Type

CF

Equipment per IEC 601-1

The Force 30,40 provides a

high

degree

of

protection against electric shock, particularly

regarding

allowable

leakage

currents

and

has

a CF

type

isolated

(floating)

applied

part.

The

applied part

may

be used on the heart.

Defibrillator-Proof

The neutral electrode terminals of the Force 30,40 can withstand the effects of defibrillator discharge.

Drip Proof per IEC 601-1

The Force 30,40 enclosure will prevent reasonable amounts of falling liquid from interfering with the generator’s safe and satisfactory operation.

Intermittent

Operation

The

generator

is

cooled by

natural convection.

Under

maximum

power setting and rated load

conditions

(Pure

Cut, 300

watt setting,

300

ohm

load)

the

Force

30,40

is suitable for 10 seconds on,

30

seconds

off operation for one hour.

With

lesser settings

and

other load impedances, the Force

30,40 can be used for greater activation durations without generating excessive internal

temperatures.

8	Force 30, 40 Service Manual

Note: Power

readouts

agree

with actual

power

into

rated load

to within + 15%

or + 5

watts,

whichever

is

greater.

Dosage

error

occurs when

the

measured

output power exceeds

the displayed

units by

35

watts

or 35%, whichever

is

greater.

Force

30

Output

Waveform

Cut

500

kHz

sinusoid.

Blend

500

kHz

bursts of

sinusoid @

50%

duty

cycle, recurring @ 31.25

kHz.

Desiccate

500

kHz

damped

sinusoidal

bursts

with

a

repetition

frequency

of

250

kHz.

Fulgurate

500

kHz

damped

sinusoidal

bursts

with

a

repetition

frequency

of

62.5

kHz.

Standard

Bipolar

500

kHz

sinusoid.

Precise Bipolar

500

kHz

sinusoid.

Output	Characteristics
		Maximum		Rated		Nominal	Crest
		(open	circuit)	Load		Power	Factor
Mode		P-P	voltage	(ohms)	+	(watts)	(typical
Cut		3300		300		300	2.1	@	100W
Blend		3800		300		250	3.5	@	100W
Desiccate		3500		300		200	3.5	@	100W
Fulgurate		6500		300		150	6.0	@	100W
Standard	Bipolar	550		100		99	1.9	@	20W
Precise Bipolar		550		100		70	1.9	@	20W

Force 30, 40 Service Manual

Note:

Power

readouts

agree

with actual

power

into

rated load

to within + 15%

or +

5

watts,

whichever

is

greater.

Dosage

error

occurs when

the

measured

output power exceeds

the displayed

units

by 35

watts

or 35%, whichever

is

greater.

Force 40

Output Waveform

Cut		500	kHz	sinusoid.
Blend	1	500	kHz	bursts	of	sinusoid @ 50% duty cycle, recurring @ 31.25 kHz.
Blend	2	500	kHz	bursts	of	sinusoid @ 37.5% duty cycle, recurring @ 31.25 kHz.
Desiccate		500	kHz	damped		sinusoidal bursts with a repetition frequency of 250 kHz.
Fulgurate		500	kHz	damped		sinusoidal bursts with a repetition frequency of 62.5 kHz.
Spray	Coag	500	kHz	damped		sinusoidal bursts with a repetition frequency of 31.25 kHz.
Standard		500	kHz	sinusoid.
Precise		500	kHz	sinusoid.

Output Characteristics

		Maximum		Rated	Nominal	Crest
		(open	circuit)	Load	Power	Factor
Mode		P-P	voltage	(ohms)	(watts)	(typical)
Cut		3300		300	300	2.1	@	100W
Blend	1	3800		300	250	3.5	@	100W
Blend	2	4000		300	200	4.0	@	100W
Desiccate		3500		300	200	3.5	@	100W
Fulgurate		6500		300	150	6.0	@	100W
Spray	Coag	9000		300	150	8.5	@	100W
Standard		550		100	99	1.9	@	20W
Precise		550		100	70	1.9	@	20W

10	Force 30, 40 Service Manual

All Monopolar output measurements are made using the procedures described

in

IEC 601-2-2.

PURE CUT

GENERATOR

SETTING

|

|

|

OUTPUT

POWER (WATTS)

300

150

0

200

400

600

800

1000

1200

1400

1600

1800

2000

IMPEDANCE (OHMS)

BLEND1

GENERATOR

SETTING

OUTPUT

POWER (WATTS)

250

130

O	200	400	600	800	1000	1200	1400	1600	1800	2000
				IMPEDANCE (OHMS)

Figure 2.1 Force 40 Output Power vs Load

Force 30, 40 Service Manual

11

	BLEND 2
300	GENERATOR
270	SETTING
240
210

	18		DS
OUTPUT			/
00068.	150	/
	1204H

gol60		/ Al	|
30
0	0	200	400

OUTPUT POWER (WATTS)

30
0	200	400
0

nm]

==	200

	100

600	800	1000	1200	1400	1600	1800	2000
	IMPEDANCE		(OHMS)

DESICCATE

GENERATOR

SETTING

200

100

600

800

1000

1200

1400

1600

1800

2000

IMPEDANCE (OHMS)

2.1 Force 40 Output Power vs Load (cont'd)

12	Force 30, 40 Service Manual

	180
	160
	140
		и
	120	/
output	100
POWER	80
(WATTS)
	60	£
	40
	20
	0		200	400
	0

	180
	160
	140
	120	4
OUTPUT	100	/
POWER
(WATTS)	80
	60	V
		/
	40
	20
	0
	0	200	400

FULGURATE

GENERATOR

SETTING

150

75

600	800	1000	1200	1400	1600	1800	2000
	IMPEDANCE		(OHNS)

SPRAY

GENERATOR

SETTING

150

75

4

600	800	1000	1200	1400	1600	1800	2000
	IMPEDANCE		(OHMS)

2.1 Force 40 Output Power vs Load (cont'd)

Force 30, 40 Service Manual	13

Bipolar measurements are made using bipolar forceps	on the insulating surface described	in
IEC 601-2-2.

OUTPUT POWER (WATTS)

OUTPUT POWER

(WATTS)

60

50 κ

40		[ N	TN	X
30
		A
20				>
10
0	0	200	400

60

50

STANDARD

GENERATOR

SETTING

< X

l |

600 800 1000 1200 1400 1600 1800 2000 IMPEDANCE (OHMS)

PRECISE

GENERATOR

SETTING

4 A

	30	\
		\

10	>=
		м							50
0									26
				1000	1200	1400	1600	1800	2000
200	400	600	800

IMPEDANCE (OHMS)

2.1 Force 40 Output Power vs Load (cont'd)

14	Force 30, 40 Service Manual

All monopolar output measurements are made using the procedures described

in

IEC 601-2-2.

PURE CUT

GENERATOR

SETTING

OUTPUT

POWER (WATTS)

300

150

|

0	200	400	600	800	1000	1200	1400	1600	1800	2000
				IMPEDANCE		(OHMS)

BLEND1 GENERATOR

SETTING

OUTPUT POWER (WATTS)

										250
80										130
40
0
0	200	400	600	800	1000	1200	1400	1600	1800	2000
				IMPEDANCE		(OHMS)

Figure 2.2 Force 30 Output Power vs Load

Force 30, 40 Service Manual	15

DESICCATE GENERATOR

SETTING

OUTPUT	200
POWER
(WATTS)
	100

0

200

400

600

800

1000

1200

1400

1600

1800

2000

IMPEDANCE (OHMS)

FULGURATE GENERATOR

SETTING

150

OUTPUT

POWER (WATTS)

75

0	200	400	600	800	1000	1200	1400	1600	1800	2000
				IMPEDANCE		(OHMS)

2.2 Force 30 Output Power vs Load (cont'd)

16	Force 30, 40 Service Manual

Bipolar measurements are made using bipolar forceps	on the insulating surface described	in
IEC 601--2-2.

	60
	50+	/	ГУ	N
	40
OUTPUT
POWER	30
(WATTS)

STANDARD

GENERATOR

SETTING

N

10								="	mm	50
										24
0	200	400	600	800	1000	1200	1400	1600	1800	2000
0
				IMPEDANCE		(OHMS)

										PRECISE
	60										GENERATOR
											SETTING
	50
	4014	A
OUTPUT	30
POWER		\
(WATTS)
	20	\
	10	M		—							50
		SL
	0										24
	0	200	400	600	800	1000	1200	1400	1600	1800	2000
					IMPEDANCE		(OHMS)

2.2 Force 30 Output Power vs Load (cont'd)

Force 30, 40 Service Manual	17

OUTPUT POWER (WATTS)

OUTPUT POWER (WATTS)

300

270

240

210

180

— 50

120

90

60

30

240

210

180

150

120

90

60

30

CUT @ 300 ohms

/

A ~

Lá

30	60	90	120	150	180	210	240	270	300
			GENERATOR		SETTING
				BLEND/BLEND			1 @	300 ohms

A <

30	60	90	120	150	180	210	240
		GENERATOR		SETTING

Figure 2.3 Output Power vs Generator Setting

18	Force 30, 40 Service Manual

OUTPUTNA,

OUTPUT POWER

(WATTS)

200								BLEND 2		O	300	ohms
180													<
160												A
140									ya
120							LA
o								VA
80
60				L
40	ST
o
0	20	40		60	80	100		120	140	160		180	200
					GENERATOR		SETTING
								DESICCATE		@	300	ohms
200
180												Рой
160
140
120
100
80
60
40
20
0	20	40		60	80	100		120	140	160		180	200
					GENERATOR			SETTING

2.3 Output Power vs Generator Setting (cont'd)

Force 30, 40 Service Manual	19

OUTPUT POWER (WATTS)

OUTPUT POWER (WATTS)

20

				FULGURATE	@		300		ohms
140							-
120					Y
				A
100
80	A		Lá
60
40
20
0
20	40	60	80	100	120				140
	GENERATOR			SETTING
				SPRAY	@	300		ohms
140							À
120				A
100			<
80
60
40
20
0
20	40	60	80	100	120				140
	GENERATOR			SETTING

2.3 Output Power vs Generator Setting (cont'd)

Force 30, 40 Service Manual

STANDARD BIPOLAR @ 100 ohms

50

	40				pá	L
OUTPUT	30
POWER
(WATTS)
	20
	10		<
		10	20	30	40	50
			GENERATOR	SETTING
			PRECISE BIPOLAR		@ 100	ohms
	50

OUTPUT POWER (WATTS)

Force 30, 40 Service

40
30
20
10		<
	10	20	30	40	50
		GENERATOR	SETTING

2.3 Output Power vs Generator Setting (cont'd)

Manual	21

22

Force

30,

40

Service

Manual