How the CARGO-SAFE™ Ultrasonic Hatch Cover Tester works
The CARGO-SAFE™ works in a very simple way. After the hatch covers are closed, the transmitter generating an ultrasonic signal is placed in the cargo hold, which then emits ultrasonic waves(the cargo hold can be empty or loaded with cargo).
The surveyor or operator then uses the CARGO-SAFE™ ultrasonic receiver to ‘listen’ from outside of the hold and detect any ultrasonic sounds that pass through any holes in the hatch cover with pinpoint accuracy. The size of the leak can be established by the strength of the signal detected.
The CARGO-SAFE™ hatch cover leak detection system has three levels of emitters: upper, lower and vertical. This means that ALL of the ultrasound is directed to the hatch covers, optimising its effectiveness.
The diagram shows the dispersion pattern of the ultrasonic sound emanating from the CARGO-SAFE™ transmitter.
The CARGO-SAFE™ has a high sound pressure level, so it is ample enough to fill even the largest of holds, to enable reliable and accurate readings.