Making An Ac Current Measurement - Promax OS-782 Manual Del Usuario

USER'S MANUAL. OS-782

5.4.8 Making an AC Current Measurement

In order to carry out the measurement of current it is necessary to connect in
series the meter and the circuit under test. Make sure that the circuit is disconnected
before doing this connection.
To measure an AC current which is less than 400 mA, do the following:
1. Press the A key and DCA appears at the top of the screen. The unit on the
main reading screen is mA. mA and 20A will display on the right bottom of
screen, press F4 or F5 to switch the measurement between Ma and 20A.
400 mA is acquiescently.
2. Press the AUTO SET key once and ACA is visible at the top of 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 point and the AC current
value of the measured point will be displayed on the screen. Look at the
display; you can see a screen that looks like the following figure 38.
Figure 42.- AC current Measurement for 400 mA.
To measure an AC current which is larger than 400 mA, do the following:
1. Press the AUTO SET key once and ACA is visible at the top of the screen.
2. Press F5 to select 20A measure, the unit of main reading window is A.
3. Press the AUTO SET key once and ACA is visible at the top of the screen.
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