Operation Manual

22
MAINTENANCE
DEVICE CALIBRATION
Maintenance is basically confi ned to cleaning the outside of the device.
The calibration interval is dependent on use and operational demands, and should be between 1 and
2 years. Calibration can be done by Kathrein customer service, see next page.
OUTSIDE CLEANING
A soft cloth, lint-free duster or paint brush is recommended for cleaning the outside of the device. In case
of heavier soiling it is also possible to use alcohol or a mild soap solution. Under no circumstances is
it allowed to use solvents such as thinners, acetone, etc., as otherwise plastic parts and markings may
be damaged.
INTERIOR CLEANING
As it is necessary to open the device to clean the interior, this work should only be undertaken by
authorised service personnel! The device should be freed of dust deposits inside at regular intervals,
app. every 1 to 2 years, to ensure optimum ventilation. The cleaning interval is based on the length of
time the device is operated each day and the amount of dust in the premises. It is necessary to remove
the back panel or the control panel for cleaning. Dust deposits can be removed using a brush or
grease-free compressed air.
Important
FUNCTION TEST
It is advisable to check the specifi ed nominal data at appropriate intervals. For data and tolerances
please see the technical specifi cations.
REQUIRED MEASURING EQUIPMENT
- TV/SAT signal generator for checking the level accuracy as well as the analogue measurements and
demodulation.
- DVB signal generator for checking the level accuracy as well as the digital measurements and
demodulation.
STORAGE
The storage temperature range of the device is -40 ... +70°C.
The device must be protected against dust and moisture during storage.