Fluke 125 Fluke 125 Users Manual - Page 21

Looking at the Measurement, Connections, Input

Page 21 highlights

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 black safety 4-mm banana jack input (COM). (See Figure 1-3.) Input A 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. 1 General Operating Instructions Looking at the Measurement Connections 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. Figure 1-3. Measurement Connections 1-5

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General Operating Instructions
Looking at the Measurement Connections
1
1-5
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 black safety 4-mm banana jack input
(COM). (See Figure 1-3.)
Input A
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.
Figure 1-3. Measurement Connections