
― 42 ―
― 41 ―
5-9-2 Diode (
) test
1)
What to measure
(Diode test): Judging the diode (Good or defective)
2)
Measuring procedure
①
Connect the red plug of the test lead to
measuring
terminal and the black one to the COM terminal.
②
Set the function selector to
, then press the SELECT
button to select the diode test.
(The sub display shows [diod
].)
③
Apply the black test pin to the cathode of the diode, and the
red one to the anode.
④
The display will show the forward voltage drop (forward
biased).
*
Forward biased voltage drop for a good silicon diode is
between 0.400 V to 0.900 V. A reading higher than that
indicates a defective diode. A zero (or close to)reading
indicates a defective diode (shorted). An OL indicates a
defective diode (open).
⑤
Apply the red test pin to the cathode of the diode, and the
black one to the anode.
*
A reading [OL
] for reverse biased voltage drop indicates
the diode is good. Any other readings indicate the diode is
defective (resistive or shorted).
Note:
・
Open circuit voltage between the measuring terminals: <3.5 V dc
・
Test current: 0.4 mA (typical)
・
Diode test function does not show the bar graph.
Forward biased test
Reverse biased test
Содержание PC7000
Страница 1: ...PC7000 DIGITAL MULTIMETER 取扱説明書 INSTRUCTION MANUAL ...
Страница 17: ... 30 29 備 考 m m m m D 時にはバーグ ラフは表示されません m m m m D ...
Страница 25: ... 46 45 備考 4 20 mA 測定では DC 4 mA を 0 とし DC 20 mA を 100 とした場合のパーセンテージ を表示します m 4 20 mA m m m m m Hz ...
Страница 40: ...PC7000 DIGITAL MULTIMETER INSTRUCTION MANUAL ...
Страница 56: ... 30 29 Note The display style of m m m m or D does not show the bar graph m m m m D ...