Erbe VIO 300 D, Руководство пользователя

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2 • Safety Features
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CHAPTER 2
Safety Features
Automatic monitoring of equipment output error
The unit is equipped with an automatic monitoring system for the HF output param-
eters. This system monitors any divergence between the actual value and the set-
point of the HF output parameters selected and emits warning signals or switches off
the HF generator if the divergence is so great that the required quality of the respec-
tive effect (CUT or COAG) is no longer guaranteed.
For the operating surgeon the display of any equipment output error allows him to
immediately see, in the event of divergence or absence of the required effect, wheth-
er this defect has been caused by the unit. With the unit, any divergence of the HF
output parameters from the HF output parameters actually selected can only be
caused by loads with an excessively low resistance, e.g. too large coagulation elec-
trodes, short circuit between active electrode and return electrode or by a defect in
the unit.
Automatic monitoring of the ON time
With proper use, a high-frequency generator is only briefly activated to carry out a
cut or coagulation using a fingerswitch, pedal or AUTO START. This generally only
takes a few seconds. A defect in the unit, in the accessories or in usage may cause
the high-frequency generator to be switched on unintentionally. To prevent major
damage being caused by accidental activation of a high-frequency generator the unit
is equipped with a monitor which automatically monitors the ON time of the high-
frequency generator.
When a predetermined maximum ON time is exceeded, the monitor emits a visual
and acoustic signal and automatically switches off the HF generator. However, the
HF generator can be switched back on at any time, resulting in renewed monitoring
of the ON time. This prevents major damage being caused by the accidental activa-
tion of an HF generator for indefinitely long periods.
Protection from operating errors
To prevent operating errors the front panel and the menus are designed so as to au-
tomatically monitor and signal illogical or incomplete settings.
All receptacles of the applied part are arranged in the receptacle strip next to the
front panel. These receptacles are designed so that only connectors of the proper ac-
cessories can be inserted (provided that only the accessories supplied or recommend-
ed by the manufacturer of the unit are used).
Whenever the power switch is switched on, an automatic test program is run inside
the unit, designed to detect and signal the following defects in the operator controls
of the unit and the connected accessories: