Fluke fluke123 user manual Looking at the Measurement Connections, Input a, Input B

Fluke 123

Users Manual

Looking at the Measurement

Connections

Look at the top of the test tool. The test tool provides two

4-mm safety shielded banana jack inputs (red input A and gray input B) and a safety 4-mm banana jack input (COM). (See Figure 1-5.)

Input A

Figure 1-5. Measurement Connections

You can always use the red input A for all single input measurements possible with the test tool.

Input B

For measurements on two different signals you can use the gray input B together with the red input A .

COM

You can use the black COMmon as single ground for low frequency measurements, and for Continuity, Ohm (Ω), Diode, and Capacitance measurements.

Warning

To avoid electrical shock or fire, use only one COM (common) connection, or ensure that all connections to COM are at the same potential.

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