Ht-instruments HT9012 Manual do Utilizador descarregar pdf (Página 10)

HT9012

EN - 9

4.3.2 AC Voltage measurement

CAUTION

Maximum input for AC Voltage measurements is 1000VDC or

1000VACrms. Do not take any voltage measurement exceeding this limit in

order not to risk electrical shock or damaging the meter.

Fig. 4: Taking AC voltage measurement

1. Approach the meter closest to AC source and note the turn on of red LED which is

placed to the bottom of clamp jaws (see Fig. 1 – part 2) which detect the AC voltage

2. Rotate the switch on V position. The “AC” symbol is shown at display

3. Pressing the RANGE key to select the correct range or using the Autorange feature

(see § 4.2.3). If the voltage value under test is unknown, select the highest range

4. Insert the red test lead plug into VΩ jack and the black test lead plug into COM

jack (see Fig. 4)

5. Connect the two long ends of test leads to the desired circuit (see Fig. 4) then reading

will be displayed

6. “OL” message is shown at display if the AC voltage under test is over the maximum

value that the instrument is able to measure

7. For HOLD and MAX functions please refer to § 4.2

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Ht-instruments HT9012 Manual do Utilizador Página 10