The following nominal trip currents are availa-
ble:10mA, 30mA, 0.5x 30mA, 5x 30mA,
100mA, 300mA, 500mA, selective 100mA, se-
lective 300mA, and selective 500mA.
Select the contact voltage limit by pressing the
'VL' (24) key.
The socket is continuously checked for faults.
If the "turn plug by 180°” symbol (7) is di-
splayed on the screen, you are advised to eit-
her turn the Schuko-plug or the exchange the
L and N connectors at the instrument.
If the symbol for socket error (6) is displayed
on the screen, we are dealing with a socket wi-
ring error. If a voltage exceeding the preselec-
ted contact voltage limit is present between N
and PE, 'UB>UL' (4) is displayed on the screen
To perform a complete socket test, touch the
contact electrode PE (25) and observe the di-
splayed values on the screen. A valid result may
only be achieved when touching the contact
electrode PE (25)!
You are dealing with a PE error, if the error sig-
nal is audible and the 'Attention' symbol (1),
and 'Socket Error' (6) are displayed. I.e., either
the PE is not connected or a high voltage
(phase) is present at PE.
The measurement may only be started if the
socket is not faulty and the measurement adap-
ter has been connected by respecting correct
polarity.
When testing a selective RCD a waiting time of
30s is respected between preliminary test and
main test. The remaining waiting time is conti-
nuously displayed on the screen. You may
interrupt the test by turning the rotary dial.
Press the "Start" key (26) to start the measure-
ment. During the measurement ' - ' is displayed
on the screen.
If a contact voltage UB is generated between
conductors N and PE exceeding the pre-selec-
ted contact voltage limit VL, the measurement
is interrupted and the 'Attention' (1), 'UB>UL'
(4) symbols are displayed on the screen.
25
RCD Trip Time Test, Contact Voltage (ta, UB / RE)
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