HT instruments SPEED418 - Manual (Page 14)

400 Series
EN - 13
1. Press the MENU key, move the cursor to
AUTO
in the main menu by means of the
arrow keys (,) and confirm with ENTER.
Subsequently the instrument displays a screen
similar to the one reported here to the side.
A U T O
R a = - - - -

T r c d = - - - - m s
R P - P e = - - - - M

30mA 50V 500V
IdN RCD UL VNom
2.
Use the ,  keys to select the parameter to be modified, and the ,  keys
to modify the parameter value.
It is not necessary to confirm the selection with ENTER
.
IdN
The virtual IdN key allows setting the nominal value of the RCD’s
tripping current, which may be: 10mA, 30mA, 100mA, 300mA,
500mA, 650mA
CAUTION
Make sure to select the correct value when setting the RCD’s test current. If
setting a current higher than the nominal current of the device being tested,
the RCD would be tested at a current higher than the correct one, thus
facilitating a faster tripping of the switch
RCD
The virtual RCD key enables the selection of the RCD type, which
may be: AC, AC S, A, A S (the options A, A S are not available if
the electrical system set is IT)
CAUTION
When activating the test option for selective RDCs (symbol S), the time
interval between the tests is 60 seconds (30 seconds for tests with ½IdN).
The instrument display shows a timer indicating the time remaining before
the instrument can automatically perform the test.
UL
The virtual UL key allows setting the limit value of contact voltage
for the system being tested, which may be: 25V, 50V
VNom The virtual VNom allows setting the value of test voltage for insulation
measurement, which may be: 50V, 100V, 250V, 500V, 1000V
3. Insert the green, blue and black connectors of the three-pin shuko cable into the
corresponding input leads E, N and P of the instrument. As an alternative, use the
single cables and apply the relevant alligator clips to the free ends of the cables. It is
also possible to use the remote probe by inserting its multipolar connector into the
input lead P. Connect the shuko plug, the alligator clips or the remote probe to the
electrical mains according to Fig. 4 and Fig. 5
4.
Press the GO/STOP key on the instrument or the START key on remote
probe. The instrument will start the automatic test sequence.