+
−
Resistor
Battery
Example of DC 60-600 mA range measurement
Note:
●
As this instrument employs the mean value method for the AC detection,
measurements become erroneous when the input waveform is other
than a sine wave (the frequency range is 45 to 500 Hz).
●
The current measured with this method decreases by the amount
that the internal resistance of the current range is inserted in
series. The effect of this phenomenon is particularly noticeable
when measuring the current of a low-resistance circuit.
The resistance value of the
μ
A range is about 50
Ω
while that of
the mA range is about 0.5
Ω
.
●
If the displayed value hardly changes when the input signal is
applied or becomes much lower than expected, the measurement
terminals or function switch are set erroneously or the fuse
(
φ
6.3 x 32 mm size, 0.4 A/1000 V) may be blown. Please check them.
●
The
μ
A/mA switching is performed with the rotary switch.
●
The DC/AC switching is performed with the SELECT button.
5-10-2
DC/AC current (DC/AC A)
WARNING
1. Never apply voltage to the input terminals.
2.The current measurement is accompanied with heat
generation. When measuring current of 6 A or more,
complete each measurement within 10 seconds and leave
an interval of 5 minutes or more between measurements.
3. Perform measurement with the leads kept straight to prevent
overheat.
– 48 –
Содержание cd732
Страница 1: ...CD732 DIGITAL MULTIMETER 取扱説明書 INSTRUCTION MANUAL ...
Страница 33: ...MEMO 62 ...
Страница 35: ......