Page 20
Instruction Manual Mesotest II
___________________________________________________________________
8.5. Solving Problems and Malfunctions
If a problem occurs which you cannot solve
with the Troubleshooting Table below, label
the unit as "Out of Order" and contact our
service personnel.
Problem Possible
cause
Solution
No reaction when the mains
switch is turned on.
The Mesotest II is not connected
to the power mains.
Insert the mains cable into the
power outlet or into the input
connector of the Mesotest II.
Power failure, or the power
outlet is inactivated.
Contact your house electrician.
The control unit or the serial
cable of the PC is incorrectly
connected.
Check whether the plug is
connected correctly.
The fuses of the unit are
defective.
Exchange the fuses (cf.
Chapter 8.3).
The unit was switched off and on
again too quickly.
Wait 5 seconds between
switching the unit off and on.
The examinee says that he does
not recognize anything.
The unit is in Stand-by Mode.
Press any key of the control unit.
The examination room is too
brightly illuminated.
Darken the room or cover the
tinted window with the enclosed
metal cover.
The work area light fails to light
up.
The light bulb is defective.
Replace it (cf. Chapter 8.4).
R/L/BIN and - DPT. do not
function with correct minus lens
values but are nevertheless
displayed in the LCD.
Optional equipment has not
been installed in the unit.
8.6. Maintenance: Description and Intervals
The Mesotest II has been built in such a way
that no special maintenance is required.
To be certain, however, we recommend an
inspection of the photometric values every 2
years. Contact your OCULUS service
personnel for this purpose
9. Disposal
Have the packaging disposed of
as recyclable waste.
When the device has reached
the end of its service life it has
to be disposed of properly:
The metal parts of the device should go to
scrap yard.
Plastic components, electrical components and
circuit boards should be disposed of as scrap
electronics.
Batteries should be disposed of as special
waste.
Materials should be disposed of according to
the laws of your country.
Please use the services of suitable waste
disposal companies.
Ask your town or municipal administration for
information about local waste disposal
companies.