SHIP CLASS II - SHIP LENGTH 75 BUT LESS THAN 200 METRES

class requirements:
limits of fundamental frequencies: 130 - 350 Hz
intensity in 1/3rd-octave band level at 1 m distance
referred to 2x10-5 N/m²: 138 dB

 

Zet-Horn 131 AC

Zet-Horn 131 AC

specification:
Type approval BSH/4615/6021096/09
operating on AC 3phase(230V/380V/440V/690V)
intensity: 138 dB (t)
fundamental frequency: 130 Hz

  
Zet-Horn 141 AC

Zet-Horn 141 AC

specification:
Type approval BSH/4615/6021097/09
operating on AC 3phase(230V/380V/440V/690V)
intensity: 138 dB (t)
fundamental frequency: 140 Hz