36
(Ik)
050.00
k
Ω
Ω
The measurement current must be a high current (TRIP mode).
To compensate for the resistance of the measurement leads (see §3.13). The selective earth meas-
urement on live circuit is especially sensitive to any error in the compensation of the measurement
leads. If this compensation has not been redone recently or if you have changed leads, it is essential
to redo this compensation.
The device proposes choosing the voltage for the Ik calculation from among the following values:
U
LN
(the measured voltage value),
the voltage of the old standard (for example 220 V),
the voltage of the current standard (for example 230 V).
Depending on the voltage U
LN
measured, the device proposes the following choices:
if 170<U
LN
<270 V: U
LN
, 220 V or 230 V.
if 90<U
LN
<150 V: U
LN
, 110 V or 127 V.
if 300<U
LN
<500 V: U
LN
, 380 V or 400 V.
To deactivate the alarm.
To activate the alarm on R
ASEL
.
To set the alarm threshold (see §3.14). As default,
the threshold is set to 50
W
.
To activate or deactivate the smoothing of the signal.
In the selective earth measurement on live circuit, it is essential to do a compensation of the measurement leads and to
redo it if it has not been done recently or if you have changed leads.
3.9.3. CONFIGURING THE MEASUREMENT
Before starting the measurement, you can configure it by modifying the parameters displayed:
Z-R
Ik
010.00
A
k A
To activate the alarm on Ik (in TRIP mode only).
To set the alarm threshold (see §3.14). As default,
the threshold is set to 10 kA.
TEST
Press the
TEST
button to start the measurement. The measurement stops automatically.
This symbol invites you to wait while the measurement is in progress.
