Operating Manual

32. TECHNICAL INSPECTION
A technical inspection of the device is recommended before use.
> Check the external appearance of the device. There should be
no cracks in the casing.
> Check the condition of the lens and eyepiece: There should be
no cracks, greasy spots, dirt or other deposits.
> Check the condition of the rechargeable battery: This should be
charged.
> Check the electrical contracts: There should be no presence of
salts or oxidation.
33. MAINTENANCE
Maintenance should be carried out at least twice a year and
consist of the following actions.
> Wipe the external surfaces of metal and plastic parts free of
dust and dirt with a cotton cloth. Silicone grease may be used
for this.
> Clean the electrical contacts of the unit using a non-greasy
organic solvent.
> Check the glass surfaces of the eyepiece and the lens. If neces-
sary, remove dust and sand from the lenses (preferably using a
non-contact method). Cleaning of the external surfaces of the
optics should be done with substances designed
specially for this purpose.
34. TROUBLESHOOTING
This table lists all the problems that may arise when operating the
device. Carry out the recommended checks and repairs in the
order shown in the table.
If a defect should occur that is not listed in the table, or if it is
impossible to repair the defect yourself, the device should be
returned for repair.