Gossen MetraWatt SECULIFE ST PRO, Руководство пользователя, Страница: 51 / 114

GMC-I Messtechnik GmbH 51
Differential Current Measurement
–
AT3-Adapter measurement type
– DUT mains plug to AT3-IIIE test adapter
– All APPs to all APP sockets
– Test probe P1 to P1 terminals
– AT3-IIIE probe to COM-V terminals
– AT3-IIIE test plug to test socket
– APPs to APP sockets
Schematic Diagram
Measurement at the DUT with 3-phase mains connection via
AT3-IIIE adapter
If the DUT includes terminals for applied parts, they must be con-
nected to the test instrument’s APP sockets. These are short-cir-
cuited in the test instrument and connected to the terminal for test
probe P1.
Accessible conductive parts which are not connected to the
housing must be contacted with test probe P1.
Wiring Diagram
Measurement Method with Current Clamp Sensor
for Permanently Installed DUTs
–
Clamp measurement type
– APPs to APP sockets
– Clamp to COM-V (feature I01 with optional current clamp sensor)
Schematic Diagram
Measurement of device leakage current by closing the current
clamp sensor around the L and N conductors of the mains cable
for permanently installed protection class I devices under test
If the DUT includes terminals for applied parts, they must be con-
nected to the test instrument’s APP sockets. These are short-cir-
cuited in the test instrument and connected to the terminal for test
probe P1.
Accessible conductive parts which are not connected to the
housing must be contacted with test probe P1.
Wiring Diagram