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4-34 IM 760401-01E

4.14 Selecting the Crest Factor

Explanation

Selecting the Crest Factor

The crest factor is a ratio of the amplitude with respect to the rms value. You can

select 3 or 6.

Note

• If the crest factor is entered using the ENTER key, the voltage range and current range

are set to the maximum range.

The maximum current range is as follows:

• Direct input range (5 mA to 20 A; 2.5 mA to 10 A if the crest factor is 6)

20 A (10 A if the crest factor is 6)

• External sensor input range: Option /EX1 (2.5 V to 10 V; 1.25 V to 5 V if the crest factor

is 6)

10 V (5 V if the crest factor is 6)

• External sensor input range: Option /EX2 (50 mV to 200 mV; 25 mV to 100 mV if the

crest factor is 6)

200 mV (100 mV if the crest factor is 6)

• If you set the crest factor to 6, the measurement conditions of crest factor 5 and higher

required by IEC 62018 are met.

YOKOGAWA WT230 User Manual

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