Acoustic Load Shackle
The subsea Acoustic Load Shackle is designed for operations where load monitoring is required, either for short-term operations lowering an item to the seabed, or for longer periods monitoring dynamic loads.
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Key Features
- 25-300 tonne subsea shackle load cells
- Spread spectrum signalling
- Robust digital telemetry
- Up to 4,000m water depth
- Monitor 4 load points using 3510 PAM
- Monitor strain and position up to 16 shackles with Easytrak Nexus 2 (option)
Applications
- Monitoring load distributions on spreader bars
- Cable strain monitoring
- Safety applications
- Mooring systems
- Ballasting operations
Technical Specification
Acoustic Beacon Model Types – Physical Specification
Housing material: Hard anodised aluminium, with clear protection sleeve and stainless steel cage
Beam Pattern
SPL
Survival Depth
Diameter
Length
Weight in air
1019LS
±90°
188dB
1500m
74mm
395mm
2.90kg/1.40kg
1015LS
±45°
194dB
2000m
74mm
410mm
3.0kg/1.50kg
1039LS
±90°
191dB
4000m
100mm
540mm
6.90kg/ 3.0kg
1035LS
±45°
200dB
4000m
100mm
540mm
6.90Kg/ 3.0kg
Beacon Electrical Specification
Battery
Battery type
Rechargeable. NiMH as standard
Listening life
Mini beacons: 30 days
Midi beacons: 90 days
Operational life, Applied Acoustics’ Spread Spectrum at 1.0pps
1019LS: 75 hours
1015LS: 75 hours
1015LS: 75 hours
1039LS: 60 hours
1035LS: 150 hours
1035LS: 150 hours
Configuration
The system works using spread spectrum technology and will be delivered, as standard, set up to work with AAE spread spectrum channels.
External Inputs
Connector type
MCBH8M 8-way connector
Responder key
+ 5 to 25 Volts
External power
22 to 35 VDC@80mA
Charge
Onboard fast charger for 3 hour charge, typical. Activated and monitored via 1082 Smart Switch or 1083 Multi-Charger
Shackle Physical Specification
Dimensions in mm
Shackle Details
A
B
C
D
E
F
G
H
Proof Test SWL
Accuracy
25 Tonne
225
125
47
52
163
73
335
55 Tonne
324
125
67
70
249
105
420
85 Tonne
340
125
75
83
311
127
460
102
150%
1.5%
120 Tonne
416
125
89
95
358
150
518
200 Tonne
530
142
120
125
458
180
615
300 Tonne
565
180
130
150
540
205
655
Shackle Details
Max. Survival depth
4,000m
Max. Operating depth
2,000m
Battery
14.8V Rechargeable Li-Ion 8 cell 5.4Ah
Self-discharge
<5% per month @ 20°C, <10% @ 30°C, <20% @ 40°C
Life
72,000 samples or 2 months.
Material
17-4PH H1150+11560 stainless steel
Calibration
Supplied with calibration, proof load & test certificates to BS EN 10002/2 1992
Beacon and Shackle Compatibility
- 3510 PAM Portable and 3190 MF dunker
- Easytrak Nexus 2 USBL
Options
- Increased depth rating
- Stainless transponder housing
- External subsea battery pack
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