GW Instek GDM-8200A User Manual - Manual (Page 30)

GDM-8200A Series User Manual
30
2W/4W Resistance Measurement
Measurement
type 2-wire Uses the standard V-COM ports.
Recommended for measuring resistances
larger than 1kΩ.
4-wire Compensates the test lead effect using the
4W compensation ports, in addition to the
standard V-COM ports.
Recommended for measuring sensitive
resistances smaller than 1kΩ.
1. Activate
resistance
measurement For 2-wire resistance measurement,
press the 2W/4W key once.
For 4-wire resistance measurement,
press the 2W/4W key twice.
2. 2W resistance
mode display
appears
2W(4W) + Ω Indicates 2W(4W) Resistance mode
AUTO Indicates Automatic range selection
10M 2nd display shows the Resistance range
3. Connect the
test lead and
measure Connect the test lead. For 2-wire resistance, use the Ω (V)
and the COM port. For 4-wire resistance, use the Ω (V)
and the COM port, plus the 4W sense, and LO port for
sensing. The display updates the reading.
2W connection
COM
4W connection
COM
4W
SENSE
LO