HT instruments HT9012 - Manual (Page 9)

HT9012
EN - 8
4.3 FUNCTIONS OF ROTARY SWITCH DESCRIPTION
4.3.1 DC 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. 3: Taking DC voltage measurement
1. Rotate the switch on V
position. The “DC” symbol is shown at display
2. 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
3. Insert the red test lead plug into V Ω jack and the black test lead plug into COM
jack
4. Connect the two long ends of test leads to the desired circuit (see Fig. 3) then reading
will be displayed
5. “OL” message is shown at display if the DC voltage under test is over the maximum
value that the instrument is able to measure
6. The “-“ symbol at display means that the voltage have an opposite sign respect the
connection of Fig. 3)
7. For HOLD and MAX features please refer to § 4.2