4.5
Selecting the Wiring System (Remote Sense or
Local Sense)
Procedure
1.
Press
CONFIG
in the MEASURE section of the front panel to display the CONFIG
menu.
2.
Press the
Wire
soft key to select 4W or 2W.
Explanation
The GS820 has two wiring systems: 2W and 4W.
2W: Two-terminal connection (local sense)
4W: Four-terminal connection (remote sense)
The connection diagrams are given on the next page.
WARNING
• When making a four-terminal connection, be careful that the connection to
the SENSE terminal does not get cut. If the voltage is not sensed correctly,
abnormal voltage will appear across the OUTPUT Hi and OUTPUT Lo terminals.
• When making a two-terminal connection, use the OUTPUT terminals. If the
SENSE terminal is used, the GS820 will not be able to generate the voltage or
current correctly and may break.
French
AVERTISSEMENT
• Lors d’une connexion aux quatre bornes, veillez à ce que la connexion aux
bornes SENSE ne soit pas coupée. Si la tension n’est pas correctement
détectée, une tension anormale est générée entre les bornes OUTPUT Hi et
OUTPUT Lo.
• Lors d’une connexion à deux bornes, utilisez les bornes OUTPUT. Si vous
utilisez les bornes SENSE, le GS820 n’est pas capable de générer correctement
la tension ou le courant, et risque de provoquer un court-circuit.
When measuring voltage in current source mode and the current becomes large, the
voltage drop in the lead wire can no longer be ignored. In such case, the voltage can be
measured without receiving the effects of the lead wire resistance by selecting the four-
terminal connection (4W) and connecting the SENSE terminal near the DUT. The effects
of the lead wires appear also in voltage source mode. In this case also, using the four-
terminal connection (4W) allows the specified voltage to be applied to the DUT without
receiving the effects of the lead wire resistance.
4-6
IM 765601-01E
