Ac Voltage Measurement; Resistance Measurement - Ht Instruments Ht4010 Bedienungsanleitung

5.1. DC VOLTAGE MEASUREMENT
Maximum input for DC Voltage measurements is
600Vrms. Do not take any voltage measurement
exceeding this limit in order not to risk electrical shock or
damaging the instrument
1. Rotate the switch on V
display
2. Pressing the RANGE key to select the correct range or using the
Autorange feature (see § 4.2). If the voltage value under test is
unknown, select the highest range
3. Insert the red test lead plug into V
lead plug into COM jack
4. Connect the two long ends of test leads to the desired circuit
(see Fig. 2) 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. 2)
7. For HOLD and MAX features please refer to § 4.2

5.2. AC VOLTAGE MEASUREMENT

Maximum input for AC Voltage measurements is 600V.
Do not take any voltage measurement exceeding this
limit in order not to risk electrical shock or damaging the
tester
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
display
3. Pressing the RANGE key to select the correct range or using the
Autorange feature (see § 4.2). If the voltage value under test is
unknown, select the highest range
4. Insert the red test lead plug into V
lead plug into COM jack
5. Connect the two long ends of test leads to the desired circuit
(see Fig. 3) then reading will be displayed
6. "O.L" 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

5.3. RESISTANCE MEASUREMENT

33
CAUTION
position. The "DC" symbol is shown at
jack and the black test
CAUTION
position. The "AC" symbol is shown at
jack and the black test
HT4010