Electric piston horn (for ships > 20 m and < 75 m)
ZETFON 400/310
ZÖLLNER
class requirements:
limits of fundamental frequencies: 250 - 700 Hz
intensity in 1/3rd-octave band level at 1 m distance
referred to 2x10-5 N/m˛: 130 dB
ZETFON 400/310
specification:
BSH type approval DHI 49/26P/83
operating on AC 1phase(115V/230V) and/or 24 V DC
intensity >130 dB (t)
fundamental frequency: 310 Hz
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