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Performance & Proofload testing & Calibration

Force transducer verification and calibration

  • Load cells (mechanical driven, hydraulic & strain gauge technology)
  • Winches and Mooring Line & Chain Load
  • Multi-strand stressing jack calibration
  • Client specific component testing
  • Buckle load detector verification
  • Tensioner and Cable Tensioner Load
  • Crane tests (using water bags, block weights)  
  • Tugs and bollard pull tests
  • Pad eye or fly point tests
  • Lifting equipment tests (slings, chains, wire-rope, hooks)
  • Construction equipment tests (shoring columns, etc.)
  • Lifting and spreader beam tests
  • Hydraulic cylinder load tests

Our calibration test rig capabilities of tensile and compressive force transducers
include:

  • Up to 1,000 kN [ 100 ton] in Tension and Compression
  • Up to 4,905 kN [ 500 ton] in Compression
  • Up to 14,000 kN [ 1400 ton] in Tension
  • Up to 29,430 kN [ 3000 ton] in Compression

At a minimum we do recommend to recalibrate the load cell annually. However we do recommend recalibration on a semi-annual or quarterly schedule if the units are used frequently or in heavy duty applications.

Should a load cell or force transducer sensor have been overloaded, dropped or damaged during use or if you suspect inaccurate or inconsistent readings, then we recommend that you contact Techno Monitoring for further evaluation and/or immediate repair/recalibration.

Techno Monitoring performs in house calibration services featuring the standard shunt calibration, which enables users to simply check calibration of the amplifier system in the field.

We calibrate and repair all brands. Certificate included with a curve of readings. Load cells only pass after three consecutive confirming runs, with all points within specification.

With fast turnaround times of approximately two weeks we provide calibration and certification of force transducers traceable to national standards, including witness of international recognized classification bureaus:

  • Lloyd’s Register of Shipping
  • Bureau Veritas
  • DNV GL (Det Norske Veritas & Germanischer Lloyd)
  • ABS (American Bureau of Shipping)
  • R.I.N.A. (Registro Italiano Navale)
  • CCS

Some of those items will be proof tested in tension, for example, load links, load shackles, connectors for wire-rope and cranes, while others will be tested in compression, for example, compression load cells, spreader beams and hydraulic cylinders.

Multi-strand stressing jack calibrations

Multi-strand stressing jacks are designed for the quick and exact post-tensioning of multi-strand tendons.


Some models only require a very short projecting strand length for attachment. They are equipped with an integrated hydraulic piston to provide power seating of the anchor wedges.

Depending on the method adopted, stay cables are either stressed complete using large multi-strand stressing jacks or inserted individually in stay cable ducts and stressed using lightweight single-strand stressing jacks.

Our clients supply suitable stressing jacks and strand pulling / pushing equipment for both methods.

stay cables of existing bridges are adjusted using large multi-strand stressing jacks. The stress is increased or reduced by stretching the whole stay cable and tightening or loosening the anchor nuts.

Only a proof test ensures a jacking item works correctly and safely through its full cycle operation.