User manual

Safety instructions
The guarantee claim becomes invalid for damages due to non-
observance of these operating instructions! We do not assume liabi-
lity for consequential damages!
We do not assume liability for property damages or personal injuries
caused by improper use or non-observance of the safety instruc-
tions. In all such cases guarantee claims become invalid.
The Frequency Counter FC-2500 has left the factory in compliance
with all relevant safety regulations. To preserve this state and to
guarantee safe operation, the user must observe the safety instruc-
tions and warnings contained in this operating manual.
Measurement devices and their accessories must be kept out of
reach of children!
In schools, training facilities, do-it-yourself and hobby workshops,
test devices and accessories are to be used only under supervision
of trained personnel.
Take the device into operation only when the housing is safely clo-
sed and screwed down.
Never apply mains voltage to the measurement inputs. This might
destroy the device and represent a serious threat to your life. You
must observe the maximum input ratings!
If there is reason to believe that safe operation has become impos-
sible, the device must be put out of operation and must be secured
against unintended operation. It can be assumed that safe operati-
on is no longer possible,
- if the device shows visible damages
- if the device no longer works
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