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 Upper frequency limit
DIN 4150-3 normally observes frequencies up to 80 Hz. In special cases, like for explosions, an extended frequency range up to 315 Hz may be necessary.
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 Lower frequency limit
DIN 4150-3 provides for a lower frequency limit of 0,8Hz. If you want to use a divergent cut off frequency, you can enter it here. However, be aware that the measurement does not comply with DIN 4150-3 anymore.
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