Extech Instruments MS6100 User Manual page 69

Making an AC Current Measurement
To measure an AC current smaller than 600 mA, perform the following:
1) Press the A key; the DC icon appears on the screen. The unit of measure on the main
reading screen is mA; the mA icon will display on the bottom of the screen, press F2 to
switch the measurement between mA and 10A. 600mA is acquiescence.
2) Press the F1 key once; the AC icon will display on the screen.
3) Insert the black lead into the COM banana jack input and the red lead into the mA banana
jack input.
4) Connect the red and black leads to the measured points; the AC current value of
measured points will be displayed on the screen. The screen will resemble the image
shown in figure 7-10.
NOTE: For current measurements 5 amps and above, limit the measurement time to 15
seconds and allow for a 1 minuite cool down between measurements.
Figure 7-10 AC Current Measurement for 600 mA
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