Ac Current Measurement - HT Instruments HT4020 Manual De Instrucciones

4.3.5. AC Current measurement

1. Select the " " position
2. Open the jaws and clamp only one cable. Pay attention to the alignment marks (see §
4.1.2. and Fig. 8). The values of current and frequency are shown on the main and
secondary displays.
3. The symbol "O.L" means that the measured voltage is higher than the full scale of the
instrument
4. For HOLD and MAX/MIN/AVG/PK features refer to § 4.2.1 and § 4.2.3
1.800.561.8187
Before attempting any measurement disconnect all the test leads from the
circuit under test and from the meter's input terminals.
Fig. 8: Use of instrument for AC current measurements
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