27/04/04 ©
Söring
Users manual RF-units
1
not valid for MBC600
-25-
Bipolar automatic button
Pressing this button enables automatic mode In automatic mode a tissue contact by the
forceps is automatically recognized and the HF generator is activated. A measurement of
the resistance is carried out for coagulation. The generator will be turned off, if the tissue
impedance is higher than 3,5kohm (good coagulation result), latestly after the maximum
time of 5sec.
In automatic mode coagulation function is pre-selected. If cutting has to be performed in
automatic mode, one of the power step selector buttons for bipolar cutting has to be
activated. In order to go back to coagulation, one of the power step selector buttons for
bipolar coagulation has to be activated.
The recognition of tissue contact is indicated to the user by a short signal tone and the RF
generator starts. A tissue contact is recognized if the tissue resistance between the
forceps´ legs is in the range of approx. 40 to 1000
Ω
.
Bipolar-Pulse Button
The use of the Pulse function allows a controlled cutting with bipolar loop electrodes. Due
to the coagulation contribution bleedings will nearly not occur (f.e. in polypectomy).
To select this function just press the PULSE-button. Now the cutting power BIPO CUT and
the coagulation contribution BIPO COAG can be set independently from each other. The
maximum power output is given by the sum of the two bipolar values. Due to the limitation
of the total power to 130w a higher setup is not possible. When the unit is activated by the
CUT-pedal both LED's (CUT & COAG) will light up.
Bipolar power indicators and set-up keys
Use the arrow keys (
14)
to adjust the power. When pressing the arrow UP button the
display counts up, when pressing the arrow DOWN button the display counts down. The
displayed value is the maximum power output in watts!
12
Power step display
Indication of selected power step (see Technical Data chapter 8).
13 Power
display
This shows the maximum power output in the chosen step in watts. Additionally the small
green light in the relevant text field (i.e. MONO CUT) shows which function has just been
activated.
14
Up and down keys for fine adjustment
By pressing these buttons the power output can be varied above or below the default
power steps.
15
Autostop key Mono
By activation of this button coagulation is automatically controlled stopping the coagulation
current after around 1 second, even if the foot or fingerswitch is still pressed. Often this
time is sufficient to coagulate certain tissues.
16 Volume
control
The loudness of the acoustical operation signal is adjustable by this control. The lowest
selectable sound level is given by VDE0750 part 2-2 respectively EN60601-2-2 to 40 dB
(A) at 1 meter distance and can thus not be influenced. Take note that the loudness of the
warning signal is not limited by the volume control.
17 Power
connection
The power cable supplied by the manufacturer of the equipment for connection to an
earthed outlet must be used (for more details see also power supply data).
Integrated into the power supply socket is the fuse holder for the main fuses of the
equipment. The value of the two glasstube fuses is given on the type label.
18 Type
label
The type label contains supply data, serial number, type of equipment and fuse size.
