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Caution, Correct incorrect – HT instruments HT77N User Manual

Page 9

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HT77N

EN - 8

4.3. OPERATING INSTRUCTION

4.3.1. AC Current measurement

CAUTION

Insert the cable in the middle of the clamp jaws, in order to obtain accurate
measures. Use the marks as a reference (see 4.1.2)


Correct

Incorrect

Fig. 3: Use of the clamp for AC current measurement

1. Switch on the clamp by pressing the

key

2. Select the desired capacity with the Range key or keep in the Autorange mode
3. Open the clamp jaw and insert the cable in the middle of it (see Fig. 3). The current

value will be shown on the display

4. For Hold, Data Hold, Auto Hold and Peak Hold feature refer to § 4.2