How To Perform The Measurements; Ac Current Measurement - HT Instruments HT78 Bedienungsanleitung

4.3. HOW TO PERFORM THE MEASUREMENTS

4.3.1. AC Current measurement

Do not perform any AC current measurement on circuit with nominal voltage
higher to 500V to round to avoid possible electrical shocks and to damage
the meter
1. Select a measurement range among the 3A, 30A, 300A or 3000A options
2. Move the FILTER selector on ON position to activate the "Low-pass 150Hz filter" (see §
4.2.3)
3. Open the clamp and put the conductor to be tested in the middle of the clamp jaw, then
reading will be displayed
4. For using of Data HOLD and see § 4.2.2. For using of analogical output see § 4.2.6
Fig. 3: Taking AC current measurement
EN - 9
CAUTION
HT78