Hioki 3285-20, Instruction Manual, Page: 47 / 85

26 _______________________________________________________
2.3 Voltage Measurement
_______________________________________________________
CAUTION
For safety reasons, when taking measurements, only
use the L9207-10 Test Lead provided with the
instrument.
NOTE
2.3 Voltage Measurement
2.3.1 Measuring DC Voltage (DC V)
1. Press button to display .
2. Insert the red test lead to V/
Ω
and the black test
lead to
COM
of the voltage/resistance input
terminal.
3. Switch between the auto range and the manual range
as necessary.
4. In case that the counter isn't zero, press
0ADJ/RESET
button to make an auto-zero-
adjustment.
ADJ
annunciator lights to indicate that
auto-zero-adjustment is complete. (See 3.1.1: Auto-
Zero-Adjustment Function)
5. Attach or remove the rigid insulating sleeve as
required by the measurement category.
6. Carefully contact the test leads to a circuit.
Be sure to use the test leads with the sleeves
attached when performing measurements in the CAT
III measurement category. In a CAT II environment,
if the tips of the test leads do not reach the
measurement object, remove the rigid insulating
sleeve before measuring.