Maintenance; Care And Cleaning; Eliminating Errors Or Malfunction; Troubleshooting - OCULUS Easygraph 70620 Instruction Manual

Page 72
Always disconnect the main plug
before cleaning the unit!
The Housing
Do not use aggressive cleaners containing chlorine,
solvents, abrasives, or powerful chemicals!
It is best to clean the outer surface of the housing
with a soft cloth and an antistatic cleaner.
The outer surfaces can also be wiped with a damp
cloth. In this case, please wipe away residues using
a mixture of equal parts of alcohol and distilled water
to which a splash of a standard commercial
dishwashing liquid has been added.
Never connect or disconnect a cable
while the PC or the Easygraph are
turned on!
If a problem occurs which you cannot solve with the
following directions, please label the unit "Out of
Order" and get in touch with our service department.
Problem: The PC shows the following message after
the examination software
communication with Easygraph"
• Please
check, whether
connected to the power supply and to the USB
interface of the PC. If not, connect the cable
correct (cf. 6.5 page 9)
Caution! This cable may not be connected or
disconnected while the Easygraph is on, as
this can destroy the camera of the Easygraph!
Inspect the fixation LED in the center of the ring
calotte (bring your eyes very close to the unit for this
purpose):
• If the fixation LED is off, the Easygraph
presumably still has no voltage.
Instruction Manual Easygraph
8

Maintenance

8.2

8.2.1 Troubleshooting

is started: "No
the Easygraph is
8.1

Care and Cleaning

Ring calotte
The ring calotte is a precision-made part and should
not be subjected to pressure. Its surface is easily
scratched.
For this reason please clean the surface of the ring
calotte with particular care. Use a lint-free, dry cloth,
but make absolutely sure that no dust gets into the
small bore holes.
If necessary, the unit can also be cleaned carefully
with a very slightly dampened cloth.

Eliminating Errors or Malfunction

Problem: The measurement software does not
start
Start the examination software.
Select "Examination" / "New Examination (Eye)".
If the software shows only an image of the
examination procedure
procedure itself does not start, the software is set to
Demo-Mode.
In order to set it to the normal procedure, enter the
"Settings" menu and activate "[System]" (cf. 7.5.4
page 60) in order to enter the data transmission field.
"Mode" must be set to "online" there. Then press
the [Save] button in order to exit from the "Settings"
menu.
Turn off the PC and the Easygraph's electric power
supply and restart the system.
Problem: The results of measurement do not
meet expectations
It is required to carry out a reference measurement.
Reference table of the Easygraph is stored in the
PC's memory. If you exchange the PC you must
likewise carry out a reference measurement (cf. 7.6.1
page 71).
but the examination