T 6.4.1.5. Alternating Current Measurements (A ~ Rms) - Philips PM2521 Gebrauchsanleitung

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6.4.1.5. Alternating current measurements (A~~ rms)
GENERAL
The PM 2521 measures the RMS value of the AC input signal. As the AC function of the PM 2521 is AC
coupled, a DC component in the AC signal is blocked. The DC component is not included in the measuring
result.
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ALTERNATING CURRENT MEASUREMENTS
— Select function A~ rms with the function selector.
— Select the manual or automatic ranging mode with pushbutton AUTO/MAN*.
Remark:
Manual ranging is indicated with a * on the display. In automatic ranging mode the UP level is 2020 and the
DOWN level is 0180.
— Select in manual ranging mode the correct range with pushbuttons UP or DOWN.
Remark:
Available ranges are: mA terminal
2.000 pA
20.00
jiA
200.0 pA
2.000 mA
20.00 mA
Overload is indicated with OL on the display (Display > 2100).
In range 20 A overload is also indicated at 21.00 A. However, the maximum continuous input current is 10 A.
If the display is > 0.5 % of end or range (10 digits), the display will indicate zero.
— Connect the current source to the 0 and mA or 0.2 A —20 A terminal.
*
Remark:
Currents up to 100 A can be measured with current transformer PM 9245. Refer to chapter 6.4.2.2.
Due to the measuring method, the display does not indicate zero when the input is short circuited.
0.2 A —20 A terminal
200.0 mA
2.000 A
20.00 A
*