Operating Instructions; Ac Voltage Measurement - Ht Instruments Ht15D Bedienungsanleitung

5. OPERATING INSTRUCTIONS

5.1. DC VOLTAGE MEASUREMENT
Maximum input for DC Voltage measurements is 600V.
Do not take any voltage measurement exceeding this
limit in order not to risk electrical shock or damaging the
instrument
1. Selecting the position 200mV
600V
2. Insert the test leads into the jacks, the red plug into
VmAA jack and black plug into COM jack
3. Connect the red and black test leads to the positive and
negative poles of the circuit under test respectively (see Fig. 2).
The voltage value is displayed. In the 600V
symbol " " is shown on the display to indicate the presence of
high voltage
4. If the message "OL" is displayed select a higher range.
5. The symbol "-" on the instrument display indicates that voltage
has opposite direction regarding the connection.
6. For HOLD function 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
instrument
1. Selecting the position 200V or 600V
2. Insert the test leads into the jacks, the red plug into
VmAA jack and black plug into COM jack
3. Connect the test leads to the circuit under test (see Fig. 3). The
voltage value is displayed. In the 600V range the symbol " " is
shown on the display to indicate the presence of high voltage
4. If the message "OL" is displayed select a higher range.
5. For HOLD function refer to § 4.2
25
CAUTION
, 2V , 20V
CAUTION
HT15D
, 200V or
range the