Hioki 3257-50, Инструкция по эксплуатации

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31 2.8 Duty Factor Measurement
The duty factor indicates the ratio between the
pulse width and the pulse period. The 3257-50/51
displays this ratio as a percentage.
Duty factor of plus side slope (D+):
D+ = tw
+
/T

100(%)
Duty factor of minus side slope (D-):
D- = tw
-
/T

100(%)
2.8 Duty Factor Measurement
• The maximum input voltage is 1000 VDC,
1000 Vrms, or 10
7
V•Hz.
Attempting to measure voltage in excess
of the maximum input could destroy the
product and result in personal injure or
death.
• For safety, test lead connections must
always be made at the secondary side of a
circuit breaker.
t
0 V
tw
+
tw
-
Pulse width of plus
side slope Pulse width of minus
side slope
Pulse period (=tw
+
+ tw
-
)
T