10. Accessories
General information for test probes etc.
The Prüfball SPB is provided with a thread on both
test electrodes. Only original accessories (e.c. exten-
sion, magnet for the railfirml) may be screwed onto
the test electrodes.
Attention!
The connection between test probe and voltage tester
has to be controlled in each case! Check function at
a known voltage source or by continuity test. Only a
perfect mechanical connection ensures safe contact
and thus an unambiguous voltage test.
Safety precautions
Only qualified personnel with appropriate
protective equipment may do these workings.
Observe the minimum object distance to other
plant components that are energized or earthed
and use personal protective equipment as speci-
fied by national accident prevention regulations
(in Germany: DGU V3 or EN 50110-1).
Hold the instrument by its handles only to avoid
covering the display or touching the extension
probes.
Voltage testers and test probes etc. must be kept
dry and clean.
Voltage testers and test probes etc. may not be
used when they are damaged.
Additional safety precautions for magnet
The contact surface has to be clean and free
from rust.
The contact has to be checked wiht the self-test.
The magnet may only be connected to
earthed rail.
10. Accessories
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