Hioki 3285-20, Instruction Manual, Page: 39 / 85

18 _______________________________________________________
2.1 Preparations
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2.1.5 Pre-Operation Inspection
Confirm the following before using the meter:
The tips of the clamp-on sensor must not be
deformed.
(Correct measurement may be impossible if the tips
are deformed.)
The clamp-on sensor must not be cracked or
damaged, and there must be no bare metal
exposed.
(To avoid electric shock, do not use a clamp-on
sensor with cracks or other damage, or exposed
metal.)
The meter must be undamaged.
(To avoid electric shock, do not use the meter if it
is damaged.)
Test lead insulation must not be scratched
or torn, and there must be no metal
exposed.
(If damage is found, to avoid electric shock, replace
with Model L9207-10.)
The batteries should be in good condition
when power is turned on.
(The " " indicator lights up when the remaining
battery capacity is low. In this case, the instrument's
reliability is not guaranteed. Replace the battery
immediately.)
The display should show close to 0 A in ACA
mode.
In DCA mode, pressing the 0ADJ/RESET
button should display close to 0 A.
In ACV mode, shorting the test leads should
display close to 0 V.
In
Ω
mode, shorting the test leads should
display close to 0
Ω
.