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Subsea Datalogging Tensile Link

The Subsea Datalogging Tensile Link is a robust Tensile Link used for measuring tensile loads on subsea mooring lines, underwater deployments and other similar applications. Available in load ranges from 5 tonne up to 200 tonne the instrument measures and records the applied load using an internal data logger which was developed by DLM Electronic Engineers.

Fully sealed to withstand subsea environments the load cell is capable of being deployed in up to 3000m water depth for periods of up to 1 year. Manufactured from stainless steel or nickel plated steel (depending on customers’ requirements) the load cell is pressure tested and fully calibrated after manufacture to ensure reliability and accuracy to the highest degree.

The internal data logger inside the tensile link is self-powered and enables load readings to be recorded at a maximum rate of 1Hz for periods of up to 12 months depending on the sample rate. data logs can be accessed by using the supplied subsea cable which is connected to the subsea connector mounted to the side of the load cell in a protective shroud. stored as .CSV file format the logs are easily accessible using already existing PC software like Microsoft Excel, enabling easy data processing after de mobbing.

Features

  • Subsea tensile link capable of operating in depths of up to 3000m
  • Capable of recording up to 2 million load readings
  • Long battery life
  • PC interface to download data

Applications

  • Monitoring loads on weather buoys
  • Monitoring loads on subsea fixings
  • Long term subsea deployments

 

 

Load Capacity
(tonnes)
Part Number Dimensions Accuracy
% FRO
Proof test
% Load Capacity
Resolution (kg)
A ØB ØC D E F
1 0001 – 1194 215 82.5 28 24 145 86.5 ±0.2 200 1
2 0001 – 1195 215 82.5 28 24 145 86.5 ±0.2 200 1
5 0001 – 1196 215 82.5 28 28 145 86.5 ±0.2 200 2
12 0001 – 1197 240 82.5 40 38 150 98 ±0.2 200 10
20 0001 – 1198 320 82.5 53 48 190 108 ±0.2 200 10
25 0001 – 1199 325 82.5 53 48 195 120 ±0.2 200 10
40 0001 – 1200 410 102 74 50 242 150 ±0.2 150 50
50 0001 – 1201 410 102 74 58 234 150 ±0.2 150 50
100 0001 – 1202 485 107 99 70 275 180 ±0.2 150 100

Specification

Link MaterialStainless steel or nickel plated steel
Internal data loggermV data logger to convert strain bridge output to SI units
Memory spaceUp to 2,000,000 samples
Sample rate4 readings per second up to 1 reading every 24 hours
Battery lifeDepends on sample rate - 10 years at 15 minute reading rate
Data logsStored internally as CSV fi les
ConnectorSubsea MCBH4-MP-SS connector
SealingPiston and face o-ring sealed
Operating Temperature-40 to +80C
Display UnitInternal data logger which connects to PC to display data after use
CableCable not required for operation. Supplied with 5m MCBH to USB cable for downloading log data to PC
CalibrationSupplied with calibration, proof load certificates to BS EN 10002/2 1992 and pressure test certificates
PackagingPackaged in custom built wooden case
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