DKM502/90
Acoustic Beacon
Acoustic Beacon Tester
AIS Solutions
Anemometer
BNWAS
Counter Piracy Solutions
Course Recorder
EPIRB
GPS Navigator
Gyrocompass Retransmission
Heading Repeaters
Hull Stress Monitoring System
Interfacing Solutions
Loading Computer
NMEA Buffer
NMEA Tester
SMIDS
Speed Log
SSAS
VDR / S-VDR
Vessel Management System
Offshore Electronics
DKM502
37.5kHz – 90 Day Marine Beacon
Building on over 50 years of underwater acoustic beacon manufacturing experience, Dukane Seacom has developed DKM502/90 which is the newest version of the IMO standard in underwater acoustic locating beacons for maritime use. Expanding on the proven reliability of the DKM502, the DKM502/90 will assist in location of VDR & S-VDR capsules up to 6096 meters or 20,000 ft. water depth.
The DKM502/90 will provide a minimum of 90 days of uninterrupted operation once activated, complying with minimum standard specification SAE8045A, IEC61996-1 & IEC-61996-2.& BSH approved
Physical Characteristics
- Watertight aluminum case (1.3”dia, 3.99” length (less mount)).
- Capable of operation at depths of up to 20,000 feet (6096 m)
- Detectable at a range of 2000 to 4000yards (1800 to 3600 meters) based on environmental factors.
- Sustained pressure up to 8700 psi.
- Dual water switch actuation initiates beacon operation upon immersion in either fresh or salt water.
- The battery used to power the DKM502/90 will sustain beacon operation for a minimum of 90 days at an acoustic output of 160 dB. Operating frequency is 37.5 kHz.
Standard Features
- Military grade corrosion protection.
- Chemical coating systems MIL-A-8625
- Innovative engineering technology that protects against inadvertent actuations.
- ATS-270M Portable Test Set shall be used to perform operational tests on the beacon.
- It can be detected at a range of 2000 to 4000 yards with DSL-375 locator.
Beacon Specifications
Details | Specs |
|---|---|
Operating Frequency: | 37.5 kHz ± 1 kHz |
Operating Depth: | Surface to 20,000 feet (6096 meters) |
Pulse Length: | 9.0 milliseconds Minimum |
Pulse Repetition Rate: | Not less than 0.9 Pulse/Sec |
Operating Life: | 90 Days (Minimum) |
Battery Life In Beacon: | 3 Years |
Acoustic Output, Initial: | 1060 dynes/cm2 Rms pressure at 1 meter (160.5dB) |
Acoustic Output After 90 Days: | 700 dynes/cm2 Rms pressure at 1 meter (157.0dB) |
Operating Temperature Range: | +28°F (-2.2°C) to +100°F (+37.8°C) |
Actuation: | Fresh or salt water |
Radiation Pattern: | Rated output over 80 percent of sphere |
Size: | 1.30 inches (3.30 cm) diameter x 3.99 inches (10.13 cm) long (less mount) |
Weight, Beacon: | 6.7 ounces (190 grams) |
Weight, N30A26 Mount: | 6 ounces (170 grams) |
Storage Temperature Range: | -67°F (-55°C) to 185°F (85°C) |
Battery: | Replaceable |