Herunterladen Diese Seite drucken

HT Instruments HT10 Bedienungsanleitung Seite 24

Werbung

Verfügbare Sprachen
  • DE

Verfügbare Sprachen

  • DEUTSCH, seite 57
1. PRECAUTIONS AND SAFETY MEASURES
This instrument complies with IEC/EN61010-1. For your own safety
and to avoid damaging the instrument, you're recommended to
keep to the instructions contained in this manual and read carefully
all the notes preceded by the symbol
Depending on the internal impedance of the voltage
detector there will be a different capability of
indicating the presence or absence of operating
voltage in case interference voltage is present
A voltage detector of relatively low internal
impedance, compared to the reference value of
100k, will not indicate all interference voltages
having an original voltage value above the ELV level.
When in contact with the parts to be tested, the
voltage detector may temporarily discharge the
interference voltage to a level below ELV, but
voltage will be back to the original value when the
voltage detector is removed
When the indication "voltage present" does not
appear, it is highly recommended installing earthing
equipment before proceeding
A voltage detector of relatively high internal
impedance, compared to the reference value of
100k, may not permit to clearly indicate the
absence of operating voltage in case interference
voltage is present
When the indication "voltage present" appears on a
part that is expected to be disconnected from the
installation, it is highly recommended confirming by
other means (e.g. use of another voltage detector,
visual check of the disconnected parts of the electric
circuit to be tested, etc.) that there is no operating
voltage on the part to be tested and to conclude
that the voltage indicated by the voltage detector is
an interference voltage
A voltage detector declaring two values of internal
impedance has passed a performance test of
detecting interference voltages and is (within
technical limits) able to distinguish operating
voltage from interference voltage and has a means
to directly or indirectly indicate which type of
voltage is present
This instrument has been designed for use in
environments with pollution degree 2.
It
can
measurements on installations of CAT IV 600V or
CAT III 1000V
24
:
:
CAUTION
be
used
for
DC
HT10
and
AC
VOLTAGE

Werbung

loading