Gima DIATERMO MB122 User manual

MANUALE D’ISTRUZIONI / INSTRUCTION’S MANUAL /
MANUAL DE INSTRUCCIONES
DIATERMO
MB122 – MB132 – MB160
M30540 (MA036IGBEa)

GIMA SpA DIATERMO MB122-MB132-MB160
Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones MA036IGBEa 3
IMPORTANTE / IMPORTANT / IMPORTANTE
Queste istruzioni operative costituiscono una parte fondamentale dell’apparecchiatura per chirurgia ad
alta frequenza, in quanto ne descrivono il funzionamento e l’uso, pertanto devono essere lette
attentamente prima di iniziare l’installazione e l’uso dell’apparecchiatura.
Tutte le istruzioni di sicurezza o note di avvertimento devono essere osservate. Siate certi che queste
istruzioni operative siano fornite insieme all’apparecchiatura quando è trasferita ad altro personale
operativo.
Nessuna parte di questo documento può essere fotocopiata, riprodotta o tradotta in un'altra lingua senza
il consenso scritto della LED SpA.
In caso di necessità di Assistenza Tecnica, contattare il proprio rivenditore.
These operating instructions form an integral part of the equipment and must be available to the
operating personnel at all times.
All the safety instructions and advice notes are to be observed. Be sure that these operating instructions
is furnished together the equipment when this is transferred to other operating people.
No part of this document could be photocopied, reproduced or translated in other language without the
written consent of LED SpA.
In case of necessity of technical assistance contact your own retailer.
Las presentes instrucciones operativas forman parte indisoluble del equipo y han de estar a disposición
del personal que lo utiliza, en todo momento.
Todas las instrucciones de seguridad y las notas de advertencia se han de cumplir al pie de la letra.
Cerciórese de que estas instrucciones operativas se adjunten al aparato, si el mismo es utilizado por
otros miembros del personal operativo.
Queda terminantemente prohibida la reproducción del presente Manual, mediante fotocopia u otros
medios, así como su traducción a otros idiomas, sin la autorización previa y por escrito.
De necesitar asistencia técnica, contacte a su revendedor.
Produttore / Manufacturer
LED SpA
PROGETTAZIONI E PRODUZIONI ELETTRONICHE
Via Selciatella, 40 04010 APRILIA (LT) ITALIA

GIMA SpA DIATERMO MB122-MB132-MB160
4 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
INDICE / INDEX / INDICE
IMPORTANTE / IMPORTANT / IMPORTANTE ..........................................................3
INDICE / INDEX / INDICE............................................................................................4
1. INTRODUZIONE........................................................................................................7
1.1 DESTINAZIONE D’USO /SETTORI DI APPLICAZIONE............................................................7
1.2 COMPOSIZIONE STANDARD ED OPZIONALE........................................................................8
1.3 DESCRIZIONE ..................................................................................................................8
1.4 TAGLIO MONOPOLARE.....................................................................................................9
1.5 COAGULAZIONE MONOPOLARE.........................................................................................9
1.6 TAGLIO E COAGULAZIONE BIPOLARE ..............................................................................10
2. SICUREZZA..............................................................................................................11
2.1 GENERALE ....................................................................................................................11
2.2 INSTALLAZIONE..............................................................................................................12
3. INSTALLAZIONE ....................................................................................................14
4. CONNETTORI E CONTROLLI ...............................................................................16
4.1 DATI DI TARGA SUL PANNELLO POSTERIORE....................................................................16
4.1.1 Dati Identificativi del Costruttore.........................................................................................16
4.1.2 Significato dei Simboli Grafici..............................................................................................16
4.2 PANNELLO FRONTALE....................................................................................................17
4.3 MODALITÀ OPERATIVE...................................................................................................17
4.3.1 Accensione.............................................................................................................................17
4.3.2 Circuito Elettrodo Neutro.....................................................................................................17
4.4 PREDISPOSIZIONE DELLE CORRENTI EROGABILI...............................................................18
4.4.1 Corrente per Taglio (CUT)...................................................................................................18
4.4.2 Corrente per Taglio-Coagulato (BLEND)............................................................................18
4.4.3 Corrente per Coagulazione Superficiale (FORCED COAG) ..............................................18
4.4.4 Corrente per Coagulazione Profonda (SOFT COAG).........................................................18
4.4.5 Corrente di Coagulazione Bipolare (BIPOLAR)..................................................................18
4.5 SEGNALAZIONE DI TEMPO DI EROGAZIONE ECCESSIVO (OVT)..........................................19
4.6 SEGNALAZIONE DI ECCESSIVA IMPEDENZA NEL CIRCUITO DI ELETTRODO NEUTRO (OC)....19
4.7 REGOLAZIONE DEL LIVELLO DEL SEGNALE ACUSTICO DI EMISSIONE .................................19
4.8 CONTROLLO AUTOMATICO DEI PARAMETRI INTERNI.........................................................19
4.9 CONNETTORI.................................................................................................................19
4.10 FUNZIONI SUPPLEMENTARI PER MODELLI MB132.........................................................20
4.10.1 Programmazione del Tempo di Erogazione.......................................................................20
4.10.2 Ripetizione del Tempo di Erogazione.................................................................................20
4.10.3 Contatore Tempo di Trattamento .......................................................................................20
4.10.3 Contatore del Numero d’Erogazioni Temporizzate............................................................20
4.11 PANNELLO POSTERIORE...............................................................................................21
4.11.1 Modulo di Alimentazione della Apparecchiatura...............................................................21
4.11.2 Connettore del Pedale.........................................................................................................21
4.11.3 Cambiatensione Rotativo....................................................................................................21
5. CARATTERISTICHE TECNICHE...........................................................................22
6. MANUTENZIONE....................................................................................................23
6.1 GENERALITÀ .................................................................................................................23
6.2 PULIZIA DEL CONTENITORE............................................................................................23
6.3 PULIZIA E STERILIZZAZIONE DEGLI ACCESSORI ................................................................23
6.4 GUIDA ALLA SOLUZIONE DI PROBLEMI............................................................................23
6.5 RIPARAZIONI .................................................................................................................24
6.5.1 Sostituzione dei Fusibili........................................................................................................24
6.6 CONTROLLO DELL'APPARECCHIATURA PRIMA DELL'USO..................................................24
6.7 CONTROLLO E MISURA DI FUNZIONI DI SICUREZZA ..........................................................24

GIMA SpA DIATERMO MB122-MB132-MB160
Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones MA036IGBEa 5
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1. INTRODUCTION .....................................................................................................25
1.1 DESTINATION OF USE /SECTORS OF APPLICATION ...........................................................25
1.2 STANDARD AND OPTIONAL COMPOSITION........................................................................26
1.3 GENERAL DESCRIPTION .................................................................................................26
1.4 MONOPOLAR CUT..........................................................................................................27
1.5 MONOPOLAR COAGULATION ..........................................................................................27
1.6 BIPOLAR CUT AND COAGULATION ..................................................................................28
2. SAFETY ....................................................................................................................29
2.1 GENERAL ......................................................................................................................29
2.2 INSTALLATION ...............................................................................................................30
3. INSTALLATION.......................................................................................................31
4. CONNECTORS AND CONTROLS .........................................................................33
4.1 LABEL ON THE REAR PANEL............................................................................................33
4.1.1 Manufacturer’s Identification Data......................................................................................33
4.1.2 Meaning of Graphic Symbols................................................................................................33
4.2 FRONTAL PANEL............................................................................................................34
4.3 OPERATION MODE ........................................................................................................35
4.3.1 Switching On.........................................................................................................................35
4.3.2 Neutral Electrode's Circuit...................................................................................................35
4.4 PRESELECTION OF THE DELIVERABLE CURRENT ..............................................................35
4.4.1 Cut Current (CUT)................................................................................................................35
4.4.2 Coagulated -Cut Current (BLEND)......................................................................................35
4.4.3 Superficial Coagulation Current (FORCED COAG)...........................................................35
4.4.4 Deep Coagulation Current (SOFT COAG)..........................................................................35
4.4.5 Bipolar Coagulating Current (BIPOLAR)............................................................................35
4.5 SIGNALING OF EXCESSIVE TIME OF DELIVERY (OVT).......................................................36
4.6 SIGNALING OF EXCESSIVE IMPEDANCE IN THE CIRCUIT OF NEUTRAL ELECTRODE (OC).....36
4.7 ADJUSTMENT OF THE ACOUSTIC SIGNAL LEVEL ...............................................................36
4.8 AUTOMATIC CONTROL OF THE INTERNAL PARAMETERS ....................................................36
4.9 CONNECTORS................................................................................................................36
4.10 MB132 UNITS’EXTRA FUNCTIONS...............................................................................37
4.10.1 Emission Time Presetting....................................................................................................37
4.10.2 Repetition of Timed Delivery ..............................................................................................37
4.10.3 Treatment Time Counter.....................................................................................................37
4.10.4 Counter of the Number of Timed Emission.........................................................................37
4.11 BACK PANEL ...............................................................................................................38
4.11.1 Power Supply Module.........................................................................................................38
4.11.2 Pedal Connector..................................................................................................................38
4.11.3 Turnable Voltage Selector ..................................................................................................38
5. TECHNICAL CHARACTERISTICS........................................................................39
6. MAINTENANCE ......................................................................................................40
6.1 GENERAL ......................................................................................................................40
6.2 CLEANING OF THE CABINET............................................................................................40
6.3 CLEANING AND STERILISATION OF THE ACCESSORY ITEMS ................................................40
6.4 GUIDE TO THE SOLUTION OF THE PROBLEMS...................................................................40
6.5 REPAIRS........................................................................................................................41
6.5.1 Fuse Substitution...................................................................................................................41
6.6 CHECKING OF THE EQUIPMENT BEFORE EACH USE.........................................................41
6.7 FUNCTION AND SAFETY CHECK AND TEST .......................................................................41
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1. INTRODUCCIÓN .....................................................................................................42
1.1 PREVISTO USO ..............................................................................................................42
1.2 ESTANDAR Y OPCIONAL COMPOSICION............................................................................43

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1.3 DESCRIPCIÓN GENERAL.................................................................................................43
1.4 CORTE MONOPOLAR......................................................................................................44
1.5 COAGULACIÓN MONOPOLAR..........................................................................................44
1.6 CORTE Y COAGULACIÓN BIPOLAR..................................................................................45
2. SEGURIDAD.............................................................................................................46
2.1 GENERALES...................................................................................................................46
2.2 INSTALACIÓN.................................................................................................................47
3. INSTALACIÓN.........................................................................................................49
4. CONECTORES Y CONTROLES .............................................................................51
4.1 PLACA DEL PANEL TRASERO...........................................................................................51
4.1.1 Datos de Identificación del Fabricante................................................................................51
4.1.2 Significado de los Símbolos Gráficos...................................................................................51
4.2 PANEL DELANTERO .......................................................................................................52
4.3 MODO DE LA OPERACION...............................................................................................53
4.3.1 Conmutacion En....................................................................................................................53
4.3.2 Circuito del Electrodo Neutral .............................................................................................53
4.4 PRESELECCION ENTREGABLE DE LA CORRIENTE ..............................................................53
4.4.1 Corte la Corriente (CUT) .....................................................................................................53
4.4.2 Coagulato-Corte la Corrinete (BLEND)..............................................................................53
4.4.3 Corriente Superficial de la Coagulacion (FORCED COAG)..............................................53
4.4.4 Corriente Profunda de la Coagulacion (SOFT COAG).......................................................53
4.4.5 Corriente Bipolar de la Coagulacion (BIPOLAR)...............................................................53
4.5 EL SEÑALAR DE LA ÉPOCA EXCESIVA DE LA SALIDA (OVT)...............................................54
4.6 EL SEÑALAR DE LA IMPEDANCIA EXCESIVA EN EL CIRCUITO NEUTRAL DEL ELECTRODO (OC)54
4.7 AJUSTE DEL NIVEL ACÚSTICO DE LA SEÑAL .....................................................................54
4.8 CONTROL AUTOMÁTICO DE LOS PARÁMETROS INTERNOS..................................................54
4.9 CONNECTORS................................................................................................................54
4.10 FUNCIONES ADICIONALES DE LAS UNIDAD MB132........................................................55
4.10.1 Programación del Tiempo de Suministro...........................................................................55
4.10.2 Repetición Sincronizada de la Salida.................................................................................55
4.10.3 Contador Tiempo de Trabajo..............................................................................................55
4.10.4 Contador del Número de Suministros Temporizados........................................................55
4.11 PANEL TRASERO...........................................................................................................56
4.11.1 Modulo de Alimentacion del Aparato.................................................................................56
4.11.2 Conector del Pedal..............................................................................................................56
4.11.3 El Selector del Voltaje Turnable.........................................................................................56
5. CARACTERÍSTICAS TÉCNICAS...........................................................................57
6. MANTENIMIENTO..................................................................................................58
6.1 GENERALES ...................................................................................................................58
6.2 LIMPIEZA DE LA CARCASA ..............................................................................................58
6.3 LIMPIEZA Y ESTERILIZACIÓN DE LOS ACCESORIOS ............................................................58
6.4 GUÍA A LA SOLUCIÓN DE LOS PROBLEMAS .......................................................................58
6.5 REPARACIONES..............................................................................................................59
6.5.1 Substitución Del Fusible.......................................................................................................59
6.6 CONTROL DEL APARATO ANTES DE USARLO.....................................................................59
6.7 CONTROL Y MEDIDAS DE FUNCIONES DE SEGURIDAD ......................................................59
GRAFICI / DIAGRAMS / GRAFICOS.........................................................................60

GIMA SpA DIATERMO MB122-MB132-MB160
Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones MA036IGBEa 25
1. INTRODUCTION
1.1 DESTINATION OF USE / SECTORS OF APPLICATION
The use of HF electro surgical equipment DIATERMO MB122, MB160 and MB132 has reserved to
specialized medical personnel. The equipment has destined to a temporary use, for surgical operations
in emergency room. It has foreseen its use in the monopolar cut, cut coagulated or coagulation mode or
in bipolar coagulation mode.
The equipment is conceived for being used in the following sectors:
DIATERMO
descrizione MB122 MB160 MB132
Electrosurgical unit code GIMA 30540 30541 30544
Electrosurgical unit code LED GMA10100.20A GMA10100.30A GMA10300.10A
Causalty 
Dental 
Dermatology 
Endoscopy 
Gastroenterology 
Gynecology 
Neurosurgery 
Orthopedics 
Otorhinolaryngology 
Pediatric surgery 
Plastic surgery 
Pneumology 
Urology 
Vascular surgery 
Veterinary 
= Recommended = Usable = Not Recommended / Not Usable

GIMA SpA DIATERMO MB122-MB132-MB160
26 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
1.2 STANDARD AND OPTIONAL COMPOSITION
DIATERMOCode
GIMA
Code
LED description MB122 MB160 MB132
- - Electrosurgical unit code GIMA 30540 30541 30544
- - Electrosurgical unit code LED GMA10100.20A GMA10100.30A GMA10300.10A
30644 00498.04 Bipolar adpter 
30560 00500.L11 Needles for micro-surgery /10
- 00100.05 Power supply cable 2m 3x1mm GB-IEC 
- 00100.00 Power supply cable 2m 3x1mm ITALY-IEC 
- 00100.03 Power supply cable 2m 3x1mm SIEMENS-IEC /1 /1 /1
- 00100.04 Power supply cable 2m 3x1mm USA-IEC 
- 00100.01 Power supply cable 5m 3x1.5mm SIEMENS-IEC 
30563 00404.06 Cable for connection disposable/5365 neutral plate /1 /1 /1
30561 00404.01 Cable for connection neutral plate 5046 
30508 00500.L8 Noose electrode (L8) (5pcs) 5 cm 
30528 00500.L8/L Noose electrode (L8/L) (5pcs) 10 cm 
30507 00500.L7 Drop electrode (L7) (5pcs) 5 cm 
30527 00500.L7/L Drop electrode (L7/L) (5pcs) 10 cm 
30671 0210 Disposable blade electrode 7 cm 
30675 0210/L Disposable blade electrode 15 cm 
30672 0230 Disposable ball electrode 7 cm 
30676 0230/L Disposable ball electrode 15 cm 
30670 0220 Disposable needlel electrode 7 cm 
30674 0220/L Disposable needlel electrode 15 cm 
30503 00500.L3 Loop electrode ∅4mm (L3) (5pcs) 5 cm 
30523 00500.L3/L Loop electrode ∅4mm (L3/L) (5pcs) 10 cm 
30504 00500.L4 Loop electrode ∅8mm (L4) (5pcs) 5 cm 
30524 00500.L4/L Loop electrode ∅8mm (L4/L) (5pcs) 10 cm 
30502 00500.L2 Bent thin wire electrode (L2) (5pcs) 5 cm 
30522 00500.L2/L Bent thin wire electrode (L2/L) (5pcs) 10 cm 
30506 00500.L6 Bent thick wire electrode (L6) (5pcs) 5 cm 
30526 00500.L6/L Bent thick wire electrode (L6/L) (5pcs) 10 cm 
30509 00500.L10 Bent ball electrode ∅3mm (L10) (5pcs) 5 cm 
30529 00500.L10/L Bent ball electrode ∅3mm (L10/L) (5pcs) 10 cm 
30505 00500.L5 Bent hook electrode (L5) (5pcs) 5 cm 
30525 00500.L5/L Bent hook electrode (L5/L) (5pcs) 10 cm 
30501 00500.L1 Straight thin wire electrode (L1) (5pcs) 5 cm 
30521 00500.L1/L Straight thin wire electrode (L1/L) (5pcs) 10 cm 
30510 00500.L9 Straight ball electrode ∅3mm (L9) (5pcs) 5 cm 
30530 00500.L9/L Straight ball electrode ∅3mm (L9/L) (5pcs) 10 cm 
30564 2818C Conductive rubber neutral electrode 
30561 5046 Steel neutral electrode for 00404.01 
5365 5365 Steel neutral electrode for 00404.06 /1 /1 /1
30562 0350 Disposable neutral electrode 
30565 F7920 Disposable split neutral electrode 
28323 00602.100 Fasting bandage 100 cm 
30531 00500.00/L Kit of assorted electrodes (10pcs) 10cm 
30500 00500.00 Kit of assorted electrodes(10pcs) 5cm /1 /1
- 00500.03 Kit of assorted electrodes (6pz) (L1-2-4-7-9-10) 5cm /1 
EQUIKIT1 EQUIKIT1 Kit for equipotential connection 
30551 - Handle with finger switches GIMA 
30518 - Handle without finger switches GIMA 
30552 00201.01 Handle for microsurgical needle /1
30550 - Handle with finger switches GIMA /1 /1 
30549 2835A Reusable handle with finger switches ROI /1
30519 BWA435-030 Reusable handle without finger switches 
M30540 MA036IGBE Manual of instructions /1 /1 /1
30568 00300.00 Not waterproof foot switch /1 /1 /1
30571 00302.00 Waterproof foot switch 
30570 00301.03 Double waterproof foot switch 
- F7520 Electrode cleaning sponge 
/pcs= STANDARD = OPTIONAL
1.3 GENERAL DESCRIPTION
DIATERMO MB122, MB160 and MB132 are electro-surgical equipments suited to deliver current
for monopolar cut, soft coagulation, forced coagulation or bipolar coagulation. The current can be
delivered for the whole time of activation of the output circuit or, with the model MB132, for an
interval of time which can be preset. The preset time delivery can repeated from 2 to 9 times.

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It is possible to use either single plate neutral reference electrodes or electrodes with split conductive
zone so to watch the plate to patient contact during the surgical intervention.
Control of the units is via front panel keys and display; mains inlet is located on the rear panel.
The units have automatic control systems that, monitoring the internal parameters, signal the possible
damages/errors that are found.
The operational parameters that are used are constantly stored so that, every time the unit is switched
on or the operative method is changed, the last utilized parameters are recalled.
The level of the emission sound can vary; every operator can choose his own level according to the
noise of his working ambient.
Power output can be actived either through holder-handles with pushbuttons or through single or
double foot switch command. Moreover, applying a special optional adapter it is possible the unit
connection to bipolar forceps.
1.4 MONOPOLAR CUT
Monopolar cut is the sectioning of the biological tissue achieved by the high-density passage of HF
current, which is concentrated at point of the active electrode. The HF current, when it is applied to the
tissue, through the point of the active electrode, it creates intense molecular heat in the cells so high
that explosion of it is caused.
The cut effect is achieved by moving the electrode through the tissue and destroying the cells one after
the other. The movement of the electrode prevents the propagation of the side heat in the tissue, thus
limiting to a single line the cells’ destruction.
The best HF current for cutting is pure sine wave without any modulation that cuts very smoothly and
provides the least thermal effect with poor haemostasis while cutting. Because its effects can be
precisely controlled, it can be used safely without damage to the bone, but since good coagulation
while cutting is one of principal benefits of using electrosurgery a current with a certain amount of
modulation is desirable.
The following rules help the operator to obtain good cutting, however every user must follow first of all
his professional judgement as he does every time in his practice.
•Keep the tissues moist but not wet
•Survey the stroke before activate the electrode
•Keep the electrode perpendicular to the tissue
•Activate the electrode before making contact with the tissue
•Maintain clean the electrode’s tip (the optional sponges F7520 to clean the electrodes are adviced).
•Wait at least five seconds before to repeat a stroke.
When the output power is properly set there should be:
•no resistance to the electrode movement through the tissue
•no change in the cut surfaces colour
•no fibres of tissue remained onto the electrode
1.5 MONOPOLAR COAGULATION
Monopolar coagulation is the haemostasis of small blood vessel of the bodily tissue through passing of
high frequency current in correspondence of active electrode. When the current density is reduced and
a broad-surfaced electrode is used, to dissipate the energy over a larger area, the effect is to dry out the
surface cells, without deep penetration, resulting in coagulation. These coagulate surface cells then
serve as a layer of insulation, preventing heat derived by successive applications of current from
penetrating too deeply.
The current normally used for coagulation is modulated and depending from the modulation percentage
is the smoothness of cutting, goodness of haemostasis and likelihood of tissue destruction. Deeper
current modulation brings to somewhat roughly cutting and the chance of some slight depth of tissue
destruction but more efficient coagulation.
The following rules help the operator to obtain good coagulation: however every user must follow first
of all his professional judgement as he does every time in his practice.
•Select a ball or heavy wire electrode

GIMA SpA DIATERMO MB122-MB132-MB160
28 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
•Locate the bleeder, after have wiped the excess blood from the area, contact lightly the bleeder
before activating the electrode
•Stop the electrode activation as soon as the tissue blanches to avoid tissue damage.
•Maintain clean the electrode’s tip (the optional sponges F7520 to clean the electrodes are adviced).
1.6 BIPOLAR CUT AND COAGULATION
Bipolar cut consists in the sectioning of the biological tissue due to the passage of HF current
concentrated on the tips of the bipolar forceps.
When the HF current is applied to the tissue, between the two tips of the forceps, an intense molecular
heat in the cell is created, so that the cell explodes.
Bipolar coagulation consists in the hemostais of small blood vessels of the body tissue between the two
tips of the forceps.
When the current density is reduced, the drying of the cellular surface is obtained, without deep
penetration and its consequent coagulation. These superficially coagulated cells act as a layer of
insulation that prevent the heat, due to successive current applications, to penetrate too deeply.

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2. SAFETY
WARNING: Electrosurgery can be dangerous. Careless use of any element in the electrosurgical
system may subject the patient to a serious burn. Read and understand all warnings, precautions, and
directions for use before attempt to use any active electrode. Neither LED S.p.A., Frosinone, Italy nor
any of the subsidiary sales organisations can be considered responsible for personal, material or
consequential injury, loss or damage that results from improper use of the equipment and accessories.
The accessories supplied with the unit have characteristics compatible with this supplied unit, they could be
incompatible with others electrosurgical units; the user must check, before connecting other accessories to this
unit, that they have characteristics of insulation compatible with those of this unit (see Technical Characteristics).
2.1 GENERAL
The following precautions reduce the risk of accidental burnings.
•The whole surface of the patient plate must be placed on a well-vascularized muscle as next as
possible to surgical area. Avoid connecting the patient plate to bony protrusions, prosthesis,
cicatricial tissues, and parts of the body subjected to liquid accumulation or that present
subcutaneous adipose tissue. The part of the body must be without hair, dry and clean. Do not use
alcohol to clean the skin. The use of gelatinoid substances for the electrodes is not adviced.
•The patient does not must be in contact with metal parts that are connected to the earth or have a
large electrical coupling capacity to the earth (for example: operating-table or metallic support).
The use of antistatic sheets is advised.
•Avoid the skin to skin contact (for example between arm and body of the patient). Insert an
interface material like dry surgical gauze. Moreover, the parts of the body subjected to abundant
perspiration must be maintained dry.
(1) Treatment area (1) Active electrode - (2) Reference electrode
(3) Dry gauze - (4) Antistatic cloth
•When high frequency electrosurgical unit and physiological monitoring devices are used at a time
in the same patient, all the monitoring electrodes, that has not resistive or inductive elements
tested in high frequency interference environment, must be as far as possible from the electrodes
of the electrosurgical unit. Avoid the use of monitoring needles.
•The connection to the electrodes should be located in such a way to avoid the contact both with
the patient and with other cables.
•For surgical procedures where the HF current could flow through parts of the body having a
relatively small cross-sectional area; the use of bipolar techniques may be desiderable in order to
avoid unwanted coagulation.
•The power level should be the lowest useful to the work to do.
•Always check the return plate whenever electrosurgical unit fails to produce the desired effect. Reason
for a low output power level, or for an incorrect functioning of the electrosurgical unit when arranged
for a normal output, may be lack of connection of the return plate or its imperfect placement.
•The use of flammable anaesthetics, of oxygen and of nitrogen protoxide should be avoid in the case of
operation at the head or at chest level except the possibility of evacuating gas. Flammable materials used to
clean, or to disinfect, should be let to evaporate before the use of the electrosurgical unit. There is risk of
stagnation of flammable solutions under the patient or in body cavities as the umbilicus and the vagina. The

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30 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
fluid that deposits in these areas should be removed before the equipment use. The danger of endogenous
gas ignition has to be considered. Some materials like cotton wool or gauze, when saturated with oxygen,
may burst into flames because of the sparks produced by the equipment in the normal use.
•There is a risk for the patients fitted with heart pacemaker or other stimulation electrode:
interference may occur with the stimulator signal or the stimulator itself can be damaged. Please
refer to Cardiology Unit when in doubt.
•Electrosurgical equipment does emit unnoticed radiation of high frequency energy that may effect
other medical equipment, unrelated electronics, telecommunications, and navigational systems.
•The accessory must be regularly checked, particularly the cables for the electrodes and the
possible accessories for the endoscopy to verify that the insulation is not damaged.
•To avoid the connection of incompatible accessories to the unit, the insulation characteristics of
the items to be replaced must be requested to the manufacturer and compared to those of the
supplied unit (see Technical Characteristics).
•Attention: a damage of the electrosurgical unit could result in an unwanted increase of the output power.
•Inadvertent stimulation of a patient's muscle and nerves can be caused by low frequency currents
originating in electric sparks between electrode and tissue of the patient. Should neuromuscular
stimulation occur stop surgery and check all connections to generator. If this does not solve the
problem, qualified service personnel must inspect generator.
2.2 INSTALLATION
•The electric safety is insured only when the same are correctly connected to an efficient net linked
to the earth in conformity with the actual safety requirements. It is necessary to verify this
fundamental safety requisite and, in case of doubt, to require an accurate control of the plant from
part of qualified personnel. The manufacturer cannot be considered responsible for possible
damages caused from the lack of efficient connection to earth of the installation. Operation
without a protective earth connection is forbidden.
•Before connect the equipment ascertain that the required voltage (showed on the rear panel)
corresponds to the available mains.
•In case of incompatibility between the available wall socket and the feeding cable of the equipment,
replace only with legally approved connectors and accessory items. The use of adapters, multiple
connections or cable extensions is not advised. Should their use become necessary it is mandatory to use
only simple or multiple adapter conforming to the actual safety requirements.
•Don't let the apparatus exposed to atmospheric agents. The unit must be protected from seepage of liquids.
•Don't obstruct openings or cracks of ventilation or heathsink
•Don't leave the equipment uselessly inserted. Switch off the equipment when not in use.
•The use of the unit is not suited in explosive rooms.
•DIATERMO MB must be destined only to the use for that have been expressly designed. Any
other use is to be considered improper and dangerous. The manufacturer can not be considered
responsible for possible damages due to improper, wrong and unreasonable uses.
•It is dangerous to modify or try modifying the characteristic of the equipment.
•Before effect any operation of cleaning or maintenance, disconnect the apparatus from the electric
net, either unplugging it from the mains or switching off the mains switch of the plant.
•In case failure and/or bad operation of equipment switch off it. For the possible reparation address
only to an authorised service centre and ask for the use of original spare parts. The lack to follow
the above requirements could risk the safety of the equipment and can be dangerous for the user.
•Do not reduce or disable the audible signal warning the activation of the generator. A functioning
activation signal can minimise or prevent patient or staff injury in the event of accidental activation.
•Avoid verifying the functioning of the unit by shorting the active electrode with the reference one
or the active electrode with metallic parts.
WARNING: When the electrosurgical unit is used in operating rooms it is necessary to just use
waterproof foot-switches
(REF 00302.00 Water-proof pedal with single switch – REF 00301.03 Water-proof pedal with double switches)

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3. INSTALLATION
•Inspect the unit for damages during transport. The claims for possible damages will be accepted
only in case they are immediately communicated to the carrier; the damages that are found must
be written down and presented to LED SpA or to your own retailer. If the unit is returned to the
LED SpA or to your own retailer, it is necessary to use the original equipment’s package or
another equivalent one, to guarantee the safety during the transport.
•Unpack the equipment and carefully study the documentation and operating instruction supplied.
Mains voltage, indicated above the inlet, must agree with the local mains voltage (mains voltage
frequency: 50-60 Hz). The correct voltage setting is selected by turning the voltage selector when
available. Insert the correct fuses in the module referring to the value written on the label.
•Connect mains cable to a mains outlet having good hearth connection
OPERATION OF THE EQUIPMENT WITHOUT EARTH CONNECTION IS
FORBIDDEN
•The unit must be installed on a level surface, with dimension, at least, correspondent to those of
the base of the unit itself. Around the unit must be left a space of 25cm, at least.
•Connect the mains cable to the mains socket on the rear panel of the unit.
•Connect the equipotential binding post located at the left of the unit’s back panel to equipotential
socket of the plant.
•Connect the single foot switch or the double foot switch (optional) to the connector on the rear
panel.
•Connect handle, in the case of use of handle without finger switch it shall be connected on the
black buckle.
•In case of use of bipolar forceps (see BIPOLAR operation paragraph 4.4.5) it is necessary to use
the special optional adapter (REF 00498.04).
•Let unit work in dry environment only. Any verified condensate must be let evaporate before
putting in operation the unit. Don't exceed the temperature environment or the allowed moisture.
Environmental conditions: Temperature: 10/40°C - Relative moisture: 30/75% - Pressure: 70/106k
Pa
•When the unit is switched on, through the on/off switch on the frontal panel, after having checked
the internal parameters, it will work with the function and the power level utilized during the last
switching (when the unit is switched for the first time the level will be 00).
•Before using the unit, it is necessary connect the cable to the patient plate. Single plate electrodes
and split plate electrodes can be. If the value of the impedance is acceptable, the OC indicator light
will stop flashing and the alarm to sound.
•Having:
Holder-handle with two pushbuttons without foot switch: press the yellow pushbutton on the holder-
handle to deliver the cutting current (the choice between CUT or BLEND must be done pressing the
correspondent pushbutton on the unit); or the blue pushbutton on the holder handle to deliver
coagulating current (the choice between FORCED COAG, SOFT COAG or BIPOLAR must be done
pressing the correspondent pushbutton on the unit).
Holder handle with two pushbuttons and a single foot switch: choose the cutting current CUT or
BLEND and the coagulation current FORCED COAG, SOFT COAG or BIPOLAR. Preset through the
yellow pushbutton on the holder handle, the function for the cut that appears on the unit or, through the
blue pushbutton on the holder handle, the function for the coagulation that appears on the unit. The
current delivery takes place through the foot switch.
Holder handle with two pushbuttons and double foot switch: press the yellow foot switch or the
yellow pushbutton of the holder handle to pre-set and deliver the cutting current (the choice between
CUT or BLEND must be done pressing the correspondent pushbutton on the unit) or the blue foot
switch or the blue pushbutton of the holder handle to pre-set and deliver the coagulating current (the
choice between FORCED COAG, SOFT COAG or BIPOLAR must be done pressing the
correspondent pushbutton on the unit).

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32 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
Holder handle without pushbuttons and single foot switch: connect the holder handle to the black
binding post and pre-set the current for the cut (CUT or BLEND) or the coagulation (FORCED COAG,
SOFT COAG or BIPOLAR), press the foot switch to deliver the pre-set current.
Holder handle without pushbuttons and double foot switch: connect the holder handle to the black
binding post and press the yellow footswitch to pre-set and deliver the cutting current (the choice
between CUT or BLEND must be done pressing the correspondent pushbutton on the unit); press the
blue foot switch to pre-set and deliver the coagulating current (the choice between FORCED COAG,
SOFT COAG or BIPOLAR must be done pressing the correspondent pushbutton on the unit).
Bipolar forceps and single foot switch: connect the optional adapter (REF 00498.04) (see paragraph
4.4.5). The equipment will select the BIPOLAR operative mode. To deliver the current press the foot
switch. To avoid the forcep’s damage don’t make short circuit with its tips.
Bipolar forceps and double foot switch: connect the optional adapter (REF 00498.04) (see paragraph
4.4.5). The equipment will select the BIPOLAR operative mode. To deliver the current press the foot
switch for the coagulation (blue). To avoid the forcep’s damage don’t make short circuit with its tips.

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4. CONNECTORS AND CONTROLS
4.1 LABEL ON THE REAR PANEL
The requirements for the safety of H.F. surgical equipment ask data and graphic symbols must be
printed on the cabinet or on at least one of the panels of generator unit to define its features and oversee
its condition of work.
4.1.1 MANUFACTURER’S IDENTIFICATION DATA
DIATERMO MB122, MB160 and MB132 HF electrosurgical unit are designed, manufactured and
tested by the LED SpA in its own laboratories in Aprilia (LT) - Italy.
4.1.2 MEANING OF GRAPHIC SYMBOLS
The meaning of the graphic symbols printed on DIATERMO’s cabinet is the following:
1. Floating Patient's plate: neither at low-frequency nor at high frequency earth connected
2. The equipment is protected against Cardiac Defibrillator discharge.
3. Not Ionising Radiation emitted
4. Read carefully INSTRUCTION MANUAL before to attempt the use of the equipment.
1 2 3 4

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34 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
4.2 FRONTAL PANEL
MB122 – MB160
1 Mains switch
2 Section of level control and indication of cut current
3 Section of level control and indication of coagulation current
4 Function keyboard
5 Alarm warning for current delivery over time
6 OC (open circuit) alarm
7 Handle connection
8 Return plate connection
MB132
1 Mains switch
2 Pulse time selector
3 Pulse repetition selector
4 Session time/flash counter
5 Function keyboard
6 Section of level control and indication of cut current
7 Section of level control and indication of coagulation current
8 Alarm warning for current delivery over time
9 OC (open circuit) alarm
10 Handle connection
11 Return plate connection

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4.3 OPERATION MODE
4.3.1 SWITCHING ON
When switched on the electrosurgical unit performs automatically a test to establish the correct operation
of itself and of the connected accessories as well. In case anomaly is found an alphanumeric message it is
shown coded according to the chart codes brought in the chapter MAINTENANCE. This test lasts about
10 seconds. At the end of the control the equipment restores last use operational conditions.
4.3.2 NEUTRAL ELECTRODE'S CIRCUIT
The neutral electrode is continually watched by a special circuit that prevents, danger of burns to the
patient due the loss of contact between the reference plate and the patient skin, if split electrode is used.
The circuit also watched the connection of the plate to the unit.
If the impedance value of the patient circuit is less than 200 ohm the value is not accepted.
4.4 PRESELECTION OF THE DELIVERABLE CURRENT
The deliverable current for the surgical operations can have preselected through push button for:
MB122 – MB160 MB132
4.4.1 CUT CURRENT (CUT)
The best current for the cut is the pure sinusoidal wave without modulation that means with duty-cycle
100%. Such current, proper for cut without coagulation.
4.4.2 COAGULATED -CUT CURRENT (BLEND)
The coagulated-cut current (BLEND) it is suited for coagulated cut when a deep coagulation together
the cut is desired. This current is made by sine current e suited for the cut associated to low voltage
current suited for coagulation (soft coag). With this blending, a current suited for cut coagulated in
absence of eschar and carbonization is obtained, particularly suitable for endoscopic surgery.
4.4.3 SUPERFICIAL COAGULATION CURRENT (FORCED COAG)
The modulated current (FORCED COAG) it is characterized by good property of surface coagulation
behaving at the time it probable production of eschar and partial carbonization of the tissue. The
advantage of this type of coagulation resides in the rapidity with which the effect is gotten.
4.4.4 DEEP COAGULATION CURRENT (SOFT COAG)
The low voltage and low modulation current (SOFT COAG) it is suited for coagulation of deep layers
of the tissue in which the coagulation of the cellular albumin is gotten in absence
of carbonization and without production of eschar. The process of coagulation is
in this case more time expensive than that of the forced coagulation.
4.4.5 BIPOLAR COAGULATING CURRENT (BIPOLAR)
This current is low voltage pure sine current suited for coagulation without
carbonization either monopolar or bipolar. The use of bipolar forceps it is allowed
only with this current. To allow the connection of the cable for bipolar forceps it
is necessary the use of an optional adapter (REF 00498.04) that prevents any
other type of current from delivering.
Particularly interesting it is the automatic termination of the bipolar coagulation
through the presetting of the time of current delivery (only for MB132 model).

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36 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
4.5 SIGNALING OF EXCESSIVE TIME OF DELIVERY (OVT)
If the operator exceeds the maximum time of disbursement, recommended by the international norms,
that is 10 seconds, the equipment produces a signal of warning consisting of bright intermittent signal
OVT. If despite the signal of warning the operator insists in the continuous delivering, after a time
depending from the type of current, and from the level of the same one, the signal of warning is
transformed in impediment to the delivering of current that is signalled through the signal OVT
constantly illuminated. The interdiction lasting of the current delivery depends from the previous
conditions of delivery.
MB122 – MB160 MB132
4.6 SIGNALING OF EXCESSIVE IMPEDANCE IN THE CIRCUIT OF
NEUTRAL ELECTRODE (OC)
For the meaning of this warning signal please refer to the previous description of the neutral electrode circuit.
4.7 ADJUSTMENT OF THE ACOUSTIC SIGNAL LEVEL
To modify the emission acoustic signal it is necessary to follow those indications:
1. Switch on the unit through the mains switch while the CUT pushbutton is maintained pressed
2. When the unit has finished to check internal parameters, on the display CUT appears the message SOU.,
while on the COAG one, the value of the preset level. Now, the CUT pushbutton can be released.
3. Through the COAG knob it is possible varying the emission acoustic level. During the variation
the sound emitted by the unit corresponds to the preset level.
4. Press the CUT pushbutton to confirm the level.
Level Sound emission until 1m
distance from the frontal panel
1 55 dBA
2 60 dBA
3 65 dBA
4 70 dBA
5 75 dBA
4.8 AUTOMATIC CONTROL OF THE INTERNAL PARAMETERS
The unit has an automatic control system of some of the internal parameters. When switched on, the control
is indicated on the display through the message SEL FCh. If there are not errors, the message PAS Sed
appears; if there are errors, Err 001 appears. See Guide to the Problems’ Solution for further information.
4.9 CONNECTORS
Connector for return plate
This is the point of connection of the return plate or of the bipolar optional adapter (REF 00498.04) for
BIPOLAR function.
Connector for handle
This is the point of connection of electrode handle. In the case of use of handle without finger switch it
shall be connected to the black buckle.

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4.10 MB132 UNITS’ EXTRA FUNCTIONS
This control apply only to the electrosurgical unit model MB132 that has the following added
characteristics:
Output power delivery time from 1/1000 up 999/1000 sec
Repetition of delivery actuation from 2 to 9 times
Session time measaurement up to 999 min
Output power stroke counter number up to 999
4.10.1 EMISSION TIME PRESETTING
If the model MB132 is used, the actuation time for the delivery of the high
frequency current can be preset with high accuracy. When timed emission is
requested the control of the active time is effected on the frontal panel by
the digitation of the value on the keyboard.
The emission of the high frequency current will occur for the preset time
each time one foot-switch or one hand-switch will be pushed. If, after have
done the timed work, it is necessary to return to the normal work it is
sufficient to push the CONT push button to do it.
4.10.2 REPETITION OF TIMED DELIVERY
The timed high frequency current emission can be automatically
repeated from 2 to 9 times each time one foot-switch or one hand
switch is pushed. The number of the repetitions, selected through
the pushbutton UP and DOWN, it is pointed out on the
corresponding display. To annul the command of repetition is necessary to press the pushbutton OFF,
in this condition the display has not turned on.
4.10.3 TREATMENT TIME COUNTER
With the MB132 model it is possible to obtain automatically the elapsed treatment time by presetting
the function by the TIME push-button and starting the counter by the START push-button. To arrest
the counting it is necessary to push the STOP push-button and the RESET push-button is used for the
counter zeroing.
4.10.4 COUNTER OF THE NUMBER OF TIMED EMISSION
With the MB132 model it is possible automatically collect the number of the high frequency current
emission by presetting the function by the PULSE push-button and starting the counter by the START
push-button. To arrest the counting it is necessary to push the STOP push-button and RESET push-
button is used for the counter zeroing.

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38 MA036IGBEa Manuale d’istruzioni / Instruction’s Manual / Manual de Instrucciones
4.11 BACK PANEL
MB122-MB160 (mod. 160)
MB132
1 Mains voltage connector
2 Voltage selector
3 Connector for pedal
4.11.1 POWER SUPPLY MODULE
Power supply module is the connection point of mains voltage feeding to the unit. This module is
provided with line fuses.
WARNING: before switch on the unit, operator has to verify that requested mains voltage corresponds
to the voltage available from the electrical net.
4.11.2 PEDAL CONNECTOR
On the left part of the back panel it is pedal connector.
4.11.3 TURNABLE VOLTAGE SELECTOR
On the power supply block can be present a voltage selector suitable for the selection of
115Vac or 230Vac mains voltage. Before powering the unit, it is necessary to preset the
correct mains voltage by properly set the voltage selector. The unit is factory preset to
230Vac.

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5. TECHNICAL CHARACTERISTICS
DIATERMO
Toll. Description MB122 MB160 MB132
Electrosurgical unit code GIMA 30540 30541 30544
Electrosurgical unit code LED GMA10100.20A GMA10100.30A GMA10300.10A
0% Minimum presectable power 0 0 0
Level step 1 1 1
Digital level display 
20% Maximum output power CUT (W) 120 →2509160 →2509120 →2509
20% Maximum output power BLEND (W) 90 →2009120 →200990 →2009
20% Maximum output power COAG FORCED (W) 80 →1509100 →150980 →1509
20% Maximum output power COAG SOFT (W) 60 →100980 →100960 →1009
20% Maximum output power BIPOLAR (W) 40 →100960 →100940 →1009
5% Modulation factor CUT Puro 100% Puro 100% Puro 100%
5% Modulation factor BLEND Puro 100% Puro 100% Puro 100%
5% Modulation factor COAG FORCED Mod. 60% Mod. 60% Mod. 60%
5% Modulation factor COAG SOFT Mod. 90% Mod. 90% Mod. 90%
5% Modulation factor BIPOLAR Puro 100% Puro 100% Puro 100%
0.2 Crest Factor CUT 1.5 1.5 1.5
0.3 Crest Factor BLEND 2.1 2.1 2.1
0.3 Crest Factor COAG FORCED 2.0 2.0 2.0
0.3 Crest Factor COAG SOFT 1.7 1.7 1.7
0.2 Crest Factor BIPOLAR 1.5 1.5 1.5
10% Working frequency 600 kHz 600 kHz 600 kHz
15% Maximum output voltage CUT (Vpp on5.2k9) 1050 1050 1050
15% Maximum output voltage BLEND (Vpp on5.2k9) 1050 1050 1050
15% Maximum output voltage FORCED (Vpp on5.2k9) 1050 1050 1050
15% Maximum output voltage SOFT (Vpp on5.2k9) 540 540 540
15% Maximum output voltage BIPOLAR (Vpp on5.2k9) 540 540 540
0.5 Weight Kg 7 7 8
10 Size HxLxD mm 260x110x265 260x110x265 360x150x265
5% Selectable power (Vac) 115 –230 115 –230 115 –230
1% Mains frequency (Hz) 50-60 50-60 50-60
0 Fuses (230Vac) 5x20 type TIMED 2x 3.15A 2x 3.15A 2x 3.15A
0 Fuses (115Vac) 5x20 type TIMED 2x 6.3A 2x 6.3A 2x 6.3A
10% Electrical input power (VA) 300 350 300
10% Electrical input current (230Vac) (A) 1.3 1.5 1.3
10% Electrical input current (115Vac) (A) 2.6 3 2.6
5 Five steps adjustable sound level (from 55 to 75dBA) 
Self-check 
Power accuracy output warning 
Split or not split patient plate allowed 
Repetition of timed delivery Da 2 a 9
Timed delivery 1 – 999 ms
Last working condition storing 
Electrical Class (EN60601-1) I CF I CF I CF
MDD 93/42/EEC Class II b II b II b
EN55011 (CISPR 11) Class (Class/Group) 2 / B 2 / B 2 / B
Patient circuit -F--F--F-
Duty Cycle (action / pause) in seconds 10 / 30 10 / 30 10 / 30
Output power control by foot-switch or finger-switch 
Defibrillation-proof 
Ten seconds delivery warning (OVT) 
Equipotential binding 
Metallic cabinet RAL5028 painted 
Polycarbonate covered panels 
Conform to EN60601-1 (1997) 
Conform to EN60601-1-2 (1995) 
Conform to IEC60601-2-2 (1998) 
Conform to EN60601-1-4 (1998) 
= OPTIONAL = STANDARD = NOT PRESENT