YOKOGAWA CL155, Руководство пользователя

Страница: 11 / 21

6
IM CL155
2.4 Resistance Measurement (Normal Mode)
WARNING
Never use the instrument on an energized circuit.
2.4.1 Resistance Measurement (Normal Mode)
(1) Set the Function Selector switch to the " " position. The " Ω " should be
shown on the upper right 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 the Lo
terminal. Check that "OL" (over indication) is indicated on the LCD display.
(3) Short the tip of the test leads and check whether the display reads "0".
(4) Connect the tip of the test leads to the circuit under test respectively. Take
the reading on the display.
NOTE
When shorting the tip of the test leads, the display may read a very small
resistance instead of "0". This is the resistance of the test leads on the display.
2.4.2 Continuity Check (400Ω range fixed)
The continuity check mode is enabled by pressing the
button on
resistance range. " " and Ω is indicated on the display to show the
instrument in the continuity check mode. The buzzer beeps, if the resistance
under test is 50 Ω or less.
(1) Set the Function Selector switch to the " " position.
(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 the Lo
terminal. Check that "OL" (over indication) is indicated on the LCD display.