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1) Applications
DCV : Measures batteries and DC circuits.
ACV : Measures sine-wave AC voltage as lighting voltages.
2) Measuring ranges
DCV : 400mV
1000V (5 ranges)
ACV : 4V
750V (4 ranges)
3) Measurement procedure (See Fig 6 or 7, page 10)
①
Connect the black plug of the test lead to the COM
input
terminal and the red plug to the
input terminal.
②
Set the function switch at "V /
" function.
③
Select the select switch at "
" (DC) or "
" (AC).
④
Apply the black test pin to the negative potential side of the circuit
to measure and the red test pin to the positive potential side.
⑤
Read the value on the display.
⑥
After measurement, remove the red and black test pins from
the circuit measured.
⑦
Turn the function switch to the position of OFF.
In the AC4V range, a figure of about 3~9 counts will stay on even
if no input signal is present. But it is not malfunction.
In the manual mode of the ACV function, the PC20 can be set to
the 400mV range and shows an approximate value. But its
accuracy is not guaranteed.
Since this instrument employs the means value system for its
AC voltage measurement circuit, AC waveform other than sine
wave may cause error.
5-2 Voltage Measurement Maximum rating input value 1000VDC or 750VAC
1. Never apply an input signals exceeding the maximum rating
input value.
2. Be sure to disconnect the test pins from the circuit when
changing the function.
3. Always keep your fingers behind the finger guards on the probe
when making measurements.
WARNING
Summary of Contents for PC20
Page 1: ...PC20 DIGITAL MULTIMETER 取扱説明書 INSTRUCTION MANUAL ...
Page 2: ......
