8
2.3 Measurement of alternating voltage
The meter measures and displays alternating mains voltage in all measuring functions. This
voltage is measured for the frequencies within the range of 45..65 Hz. The test leads should be
connected as for a given measuring function.
2.4 Measurement of voltage and frequency
Set the rotary switch in the
U,f
position.
Read the result of
measurement: the
voltage on the
secondary display
field, the frequency of
the principal.
2.5
Validation of the connections the protective conductor
Notes:
WARNING:
When a dangerous voltage is detected on PE conductor, measurements must be imme-
diately stopped and a fault in the installation must be removed.
After connecting the meter according to the
drawing, touch the contact electrode with a finger
and wait for about 1 second. When voltage is
found on
PE
the meter displays symbol (error
in the installation; PE connected to the phase
conductor) and generates a continuous beep.
This option is available for all measuring
functions of residual current devices (RCD).