YOKOGAWA CL255, Руководство пользователя

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6
IM CL255
NOTE
● During current measurement, keep the transformer jaws fully closed.
Otherwise, accurate measurements cannot be taken. Maximum conduc-
tor size is 55mm in diameter.
● Zero adjustment is not necessary in AC current measurement. There is
no polarity in the reading either.
● When the current under test measures 3% of the full scale or less, or the
frequency of the current is low, "LoHz" is indicated on the display.
2.4 DC Voltage Measurement
WARNING
Never use the instrument on a circuit above 1000VDC. This may cause
electrical shock hazard and damage to the instrument or the circuit under test.
Keep your fingers and hands behind the barrier during measurement.
(1) Set the Function Selector switch to the " V " position. "DC" should
be shown on the upper left corner of the display.
(2) Slide the terminal cover to the left to disclose the Hi and Lo terminals.
Plug the red test lead into the Hi terminal and the black test lead into Lo
terminal.
(3) Connect the tip of the red and black test leads to the positive (+) and
negative (−) sides of the circuit under test respectively. Take the reading
on the display.