Measurements; Dc Voltage Measurement - Tenmars TM-87 User Manual

4.3.

MEASUREMENTS

4.3.1. DC Voltage measurement

The maximum input for DC voltage is 1000V. Do not attempt to measure
higher voltages to avoid electrical shocks or damages to the instrument.
Fig. 2: Using the meter for DC Voltage measurement
1. Selecting the position V
2. Pressing the R/SEL key to select the correct range or using the Autorange feature (see
paragraph 4.2.4). If the voltage value under test is unknown, select the highest range.
3. Insert the test leads into the jacks, the red plug into
into COM jack (see Fig. 2).
4. Connect the red and black test leads to the positive and negative poles of the circuit
under test respectively. The voltage value is displayed.
5. If the message "
6. The symbol "-" on the instrument display indicates that voltage has opposite direction
with regard to the connection.
7. For HOLD function, Minimum and Maximum value measurement and Relative measure
please refer to paragraph 4.2.
.
O.L
" is displayed select a higher range.
CAUTION
HzVΩµA jack and black plug
9
TM-87/TM-88