2.3.7 Measurement of continuity
Use button
to select the mode of continuity "Rcont"
.
Connect measuring cables
according to Figure 2.8.
Figure 2.8 – Measurement of continuity
If external noise level at the measurement object allows to perform measurements with the
specified accuracy, then display in standby mode shows the symbol
. Otherwise the
display shows the symbol
accompanied by audio signal, and the measurements are
interlocked.
Attention! The instrument is provided with the protection against damages in case of
unintentional connection to live-line conductors. However, the voltage value between
sockets "
Ω
" and "G" shall not exceed 300 V. Failure to comply with this rule can cause the
instrument breakdown.
To start measurement press button
.
The measurement results are shown on
the display during 20 seconds and can be recorded to the instrument memory (see item
2.3.2).
Note that the true resistance of measurement object is lower than the instrument
readings by the value of measuring cables resistance and transient resistances in point of
their connection. Influence of the measuring cables resistance of 1 Ω maximum on the
measurement result can be corrected by subtraction of their resistance value from the
overall result, however such correction can not substitute four-wire measurement method,
when it comes to accuracy of low resistance measurements. If necessary, the instrument
allows to enable zero-point correction mode ">0<". For this enter the menu (see Fig. 2.9),
19
