Megger LCB2000/2 Guide De L'utilisateur page 27

Operation - RCD Testing
Connecting to the Supply
At a power socket
The simplest way of connecting to the installation
is by inserting the power plug into a convenient
installation socket. If Setting A is selected when
using the plug terminated lead set, the polarity of the
mains socket is immaterial. Line and Neutral will be
swapped internally if necessary, and an indication
given on the display. Setting b requires Line and
Neutral to be fixed.
1. Insert the power plug into an installation
socket.
2. Select and set the rated current, RCD type
and the test type.
3. Supply voltage, configuration symbols and
polarity are displayed.
4. Press the TEST key.
5. See previous notes for type of test.
If desired the test can be repeated by pressing
TEST again.
Not at a power socket
If an installation socket is not available use the 3-
wire lead set
1. Connect the red lead to phase and the green
lead to earth. No connection to neutral is
needed.
26
2. Select and set the rated current, RCD type
and the test type.
3. Supply voltage and polarity are displayed
prior to the test.
4. Press the TEST key.
5. See previous notes for type of test.
If desired the test can be repeated by pressing TEST
key again.
Automatic Testing
To aid rapid testing, the instruments can be set to
start a test automatically when connected to the
supply. This may be of use for example, when using
a clip and a probe. Select the range required and
press the test key without the supply present. The
instrument will display <100V for approximately
30 seconds. Apply the supply voltage within this
time and the instrument will pause before
performing one test automatically.
Error Numbers
In the unlikely event of a hardware or software fault or
error the display will show an error number in the form
of a digital 'E' together with an identifying 2-digit
number. If such an error number is displayed, switch
the instrument off and back on again. Then repeat the
test that was originally being carried out, or as given in
the following table: