VOLTCRAFT 300 K Bedienungsanleitung Seite 25

35 V (DC). Even with these currents, you could receive a fatal
electric shock by touching electrical cables.
• Before taking any measurement, check your measuring device or
your temperature sensors for damage(s).
• The voltage running between measuring device and earth must
never exceed 24 V AC rms or 60 V DC.
• Do not work with the measuring device in rooms where flamma-
ble gases, steam or dust are present or could be present; nor in
adverse environmental conditions. For your own safety, strictly
avoid the measuring device or measuring wires becoming damp
or wet. Avoid operationdireclty beside:
a) strong magnetic fields (loudspeakers, magnets)
b) electromagnetic fields (transformers, motors, coils, relays, fus-
es, electromagnets, etc.)
c) electrostatic fields(charging / discharging)
d) transmission aerials or HF generators
• Do not use the digital thermometer shortly before, during or
shortly after a thunder storm (lighting strike! / energy-charged,
excess voltages!). Make sure that your hands, shoes and clothes
are completely dry: the same applies for the floor, the measuring
device and measuring cables, switches and switching compo-
nents.
• If it is to be assumed that safe operation is no longer possible,
then switch off the device and secure it against unsupervised
use.It is to be assumed that safe operation is no longer pos-
sible if
- the device shows visible damage,
- the device no longer works and
- it has been stored in unfavourable conditions for a long period,
or
- it has been subjected to considerable stresses during trans-
portation.
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