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V5.1‐March2010
MEASURING DC CURRENT
To measure a DC current lower than 400 mA, do the following:
1. Insert the black lead into the COM banana jack input and the red lead into the
mA banana jack input
2. Use the A key and the SET key as needed to select the DCA mode (the DCA
symbol will appear at the top of the screen
3. Ensure that the displayed unit of measure on the main reading screen is mA.
Use the F4 soft-key to select mA if necessary.
4. Connect the red and black leads to the measured points on the circuit under test;
the DC current value will be displayed on the screen.
Refer to the example diagram in Figure 8.
Figure 8: 400mA DC Current Measurement
To measure a DC current larger than 400 mA, perform the following:
1. Press the A key and the DCA symbol should appear at the top of the screen.
Use the SET key to select DCA if necessary.
2. Press the F5 soft-key to select the 10A measurement mode, the unit of measure
on the main reading screen should be A.
3. Connect the red and black test leads to the measured points on the circuit under
test; The DC current value will be displayed on the screen.
4. Press the F4 soft-key to return to the mA measurement mode
Refer to the example in Figure 9.
