The DOOR-SAFE™ is a fully ABS Type approved ultrasonic kit. It is used to rapidly and accurately test the integrity of watertight doors and hatches.
The DOOR-SAFE™ WT tester kit consists of 2 units. An ultrasonic transmitter and a portable, handheld receiver unit connected to a flexible inspection microphone and hard hat compatible headphones.
The transmitter and receiver are each supplied in protective leather cases fitted with neck-straps to allow for hands-free use.
Often called UT or UT testing, the process consists of placing the transmitter on one side of whatever you are testing, and the receiver on the opposite end of what you are testing. The receiver is tuned to the transmitter frequency. The ultrasound can only travel through an air hole, so you immediately know if you have a problem. Ultrasound is not audible, so the receiver converts the ultrasound to an audible sound.
The sound is played through headphones or a small internal speaker. If you need to know the side of the hole, we also have the products to display the intensity in decibels. A Decibel is the universal unit for sound measurement. The bigger the measurement of sound, the bigger the air hole you have.
Plug in the headphones and inspection microphone to the receiver unit.
Turn on the transmitter unit and place it on one side of the door or hatch.
Obtain an open door value as a reference.
Close and seal the door and from the other side, pass the inspection microphone over the door seals to see if any of the ultrasound emitted from the transmitter unit can be detected.
To be water-tight the value must be 0 dB, if a value of 1-10% of the open door reference value is detected the seal is accepted as weather-tight, any readings above 10% of the open door value and the door is not weather or watertight