54 OperationG-30-1439-en OPMI® VISU 200 BrightFlex™ Surgical Microscope Issue 3.0Printed on 21. 11. 2002ChecklistAlways check the following points before surgery (without the patient!):VISU 200 BrightFlex™ surgical microscope– Check that the correct rated voltage has been set for the suspensionsystem.– Check that all cables have been connected.– Check that the light guide has been connected.• Turn on the instrument at the power switch of the suspension system.Note:After the system has been switched on, the S8 suspension system(oph-thalmology) automatically performs a self-test. The self-test is completedafter approx. five seconds.Zoom– Check this function using the appropriate key on the foot control panel.Focus– Check this function using the appropriate key on the foot control panel.Friction adjustment of the surgical microscope– Check that the friction of the surgical microscope's rotation has beenadjusted as required using the friction adjustment knob on the suspen-sion system.Locking the assistant's microscope in position– Check that the assistant's microscope is locked in the working positionrequired (on the right or left of the main microscope).Speeds of the surgical microscope's functions(only in connection with S8 suspension system (ophthalmology))– Check that the speeds of the microscope's functions have been set asrequired on the S8 suspension system (ophthalmology).Eyepieces / Tiltable binocular tubes– Check that the tiltable tube of the main microscope and the assistant'smicroscope are in positions convenient for you.– Check that the correct interpupillary distance has been set.– Check that the eyecups have been adjusted in such a way that youcan see the full field of view.– Check that the correct prescription has been set on the diopter scale.