The New Cygnus Hatch Sure is designed to detect leaks and test the weather tightness of hatch covers using an ultrasonic transmitter, microphone and receiver. As statistics show, sea water ingress is one of the major sources of damage to cargos resulting in expensive insurance claims. To address this issue, Cygnus has developed a NEW lightweight system. Cygnus Hatch Sure overcomes the obstacles in conventional hatch cover testing, such as insufficient ambient lighting, disruption to cargo loading operation, limitations with hose testing i.e. operating temperature, accuracy and pollution risk.

The system consists of a battery powered transmitter containing 19 ultrasound emitters (40 kHz). The emitters are arranged to produce an Omni-directional sound field, uniformly distributed throughout the cargo hold.

The receiver part of the system displays the sound energy level that passes through gaps in the enclosed cargo hold to enable the location of leaks to be quickly and accurately identified.