BRUEL & KJAER 2209 - Page 44

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I EC Recommendation
Tolerance Limits
Typical "Impulse" response of 2209
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f= 2kHz
50 100
200
500
Pulse Length t (m sec)
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Fig.4.19.
Response of the meter for single impulses
Crest factor V Pjv R M s
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Typical "Impulse" response of 2209
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Pulse r.epetition frequency (Hz)
7'7.Z002
Fig.4.20.
Response of the meter for repeated impulses