Gossen MetraWatt ECUTEST ST BASE - 2-Pole Measurement with Test Probes P1 and P2

Gossen Metrawatt GmbH 41
SECUTEST ST BASE(10) / PRO and SECULIFE ST BASE(25)
ICL – Current Clamp Measurement
➭ Set the clamp factor (Za. factor):
– At the current clamp sensor
– At the test instrument
13.17 2-Pole Measurement with Test Probes
P1 and P2
Only for instruments with feature H01
(e.g. SECUTEST ST PRO and SECULIFE ST BASE(25))
If the device under test isn’t equipped with a
country-specific mains plug which fits into
the test socket at the test instrument, or if a
permanently installed DUT is involved, the
second test probe, in combination with the
first test probe, permits 2-pole measurement
(dual-lead-measurement) of RPE, RINS and
equivalent leakage current.
Measurements with test probe 1 to test
probe 2 (P1 – P2) are electrically isolated
from the mains. There’s no voltage at the
test socket.
Connection Example for Measuring RPE
Measuring protective conductor resistance
RPE for permanently installed, protection
category I test objects
Connection Example for Measuring RINS or IT
Measuring insulation resistance RINS or the
touch current IT at protection category I
DUTs
Meas. Parameter Meaning
Measurement type
V – COM A AC for permanently connected
DUTs
V – COM (with mains) A AC, with mains to test socket
Polarity – only with measurement type
direct, differential and AT3 adapter
Normal Selection of polarity for mains
voltage to the test socket
Reversed
3
Connect the DUT
4
VCOM
Set parameters
5
Start test
6
Save measured values to clipboard
7
Stop test
8
P1P2
Switch position: RPE
Meas. type: P1-P2
P1P2
Switch position: RINS
Switch position: IT
Meas. type: P1-P2