Sanwa DCM2000DR, Инструкция по эксплуатации

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— 10 —
Input Waveform
0 to PEAK
Vrms
Average
Value
Crest
Factor
Form
Factor
Root Mean
Square Value
Vavg Vp/Vrms Vrms/Vavg
Sinusoidal
wave
Square
wave
Chopping
wave
Pulse
=1.414 =1.111
Vp
Vp
Vp
1
0
0
p p
Vp
Vp
0
Vp
−
Vp
2
√
=0.707 Vp
−
2 Vp
π
=0.637 Vp
2
√
Vp
−
2
√
2
π
2π
π
π
Vp Vp 1
π
2π
2π
−
Vp
3
√
=0.577 Vp
−
Vp
2
=0.5 Vp
−
2
3
√
=1.155
3
√
=1.732
2π
τ
0
Vp
−
τ
2π
・ Vp −
τ
2π
・ Vp
−
2π
τ
−
2π
τ
Vp
4-10 EF (Electric Field) sensing: EF button
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4-11 Muting the buzzer
Any buzzer sound can be muted by turning the power/function switch to ON
while holding the
button depressed. The muting of the buzzer sound
is indicated by the change of the main value display from 8888 to 0000.
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*
This cannot be performed at the same time as disabling of the Auto power save mode.
4-12 AC Detection Method
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(The input signal measurement value is used as the scale of the actual input
signal power. It is therefore measured as a more effective value than the value
obtained by average detection.)
4-13 Crest Factor
The CF (crest factor) indicates the peak value of a signal by dividing it by its
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Please measure the crest factor by 3 or less.
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