User Manual

GDM-8200A Series User Manual

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

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 V

and the COM port. For 4-wire resistance, use the 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

SENSE