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Strain Gauge Load Cell

Strain Gauge Load Cells are ideally suited for measuring loads in rock bolts, cable anchors and tendons, structural beams, piles, loads between tunnel supports and loads in pull-out tests on trial anchors.

Strain Gauge Load Cells measure compressive and tensile loads in rock bolts, cable anchors and tendons.

They consist of a Stainless Steel cylindrical housing with up to 16 resistance strain gauges in a Wheatstone Bridge configuration. When the cell is subjected to load, the strain gauges change their resistance value; the resulting output signal is directly proportional to the applied load.

The cell is connected to a sheathed cable which is itself connected either directly to a readout unit, or via a switched terminal unit. Load cells can also be wired directly to dataloggers for remote monitoring.

Load cells are manufactured with a centre hole to accommodate rockbolts, tendons or anchor cables, but can be supplied with top and bottom load plates for use as a solid centre cell.

Product Features

•Accurate and robust with very good long-term stability
•Fast response time
•Suitable for measurement, remote reading and datalogging
•Connecting cable is strong, screened and flexible
•Negligible temperature effects compared to hydraulic load cells
 

Product Benefits

•Option for dynamic monitoring
•Effects of uneven and eccentric loads are minimised
•Corrosion-resistant

Ordering information

Strain Gauge Load Cells
mV output (maximum 40 metres cable connection recommended)
L3-10-V  300kN load cell, 50mm ID
L3-11-V  500kN load cell, 50mm ID
L3-12-V  750kN load cell, 50mm ID
L3-13-V  500kN load cell, 75mm ID
L3-14-V  750kN load cell, 75mm ID
L3-15-V  750kN load cell, 120mm ID
L3-16-V  1000kN load cell, 120mm ID
L3-17-V  1250kN load cell, 120mm ID
L3-18-V  1250kN load cell, 165mm ID
L3-19-V  1500kN load cell, 165mm ID
L3-20-V  1800kN load cell, 165mm ID
L3-21-V  1800kN load cell, 225mm ID
L3-22-V  2500kN load cell, 225mm ID
L3-23-V  3000kN load cell, 225mm ID


Strain Gauge Load Cells
4-20mA output (maximum 1,000 metres cable connection recommended)
L3-10-A  300kN load cell, 50mm ID
L3-11-A  500kN load cell, 50mm ID
L3-12-A  750kN load cell, 50mm ID
L3-13-A  500kN load cell, 75mm ID
L3-14-A  750kN load cell, 75mm ID
L3-15-A  750kN load cell, 120mm ID
L3-16-A  1000kN load cell, 120mm ID
L3-17-A  1250kN load cell, 120mm ID
L3-18-A  1250kN load cell, 165mm ID
L3-19-A  1500kN load cell, 165mm ID
L3-20-A  1800kN load cell, 165mm ID
L3-21-A  1800kN load cell, 225mm ID
L3-22-A  2500kN load cell, 225mm ID
L3-23-A  3000kN load cell, 225mm ID


Strain Gauge Load Cell Distribution Plates
L3-050-T  Top plate for 50mm ID load cell
L3-075-T  Top plate for 75mm ID load cell
L3-120-T  Top plate for 120mm ID load cell
L3-165-T  Top plate for 165mm ID load cell
L3-225-T  Top plate for 225mm ID load cell
L3-050-B  Bottom plate for 50mm ID load cell
L3-075-B  Bottom plate for 75mm ID load cell
L3-120-B  Bottom plate for 120mm ID load cell
L3-165-B  Bottom plate for 165mm ID load cell
L3-225-B  Bottom plate for 225mm ID load cell
Terminal Units
RO-TB-S-12  Terminal unit – switching; for up to 12No. 4-20mA load cells only
RO-TJ-S-12  Terminal unit/junction box – switching; for up to 12No. 4-20mA load cells only
RO-TB-S-24  Terminal unit – switching; for up to 24No. 4-20mA load cells only
RO-TJ-S-24  Terminal unit/junction box – switching; for up to 24No. 4-20mA load cells only
RO-TB-S-48  Terminal unit – switching; for up to 48No. 4-20mA load cells only
RO-TJ-S-48  Terminal unit/junction box – switching; for up to 48No. 4-20mA load cells


Cable Accessories
CA-4.1  Joint sealing kit
CA-4.2  Coloured adhesive tapes; set of 10No.
CA-4.3  Crimping tool
CA-4.4  Crimping sleeves; set of 100No.
W6-6.1  Nylon ties; 150mm x 3.5mm; pack of 100No.
ST1-3.5  Nylon ties; 370mm x 4.7mm; pack of 100No.


Strain Gauge Load Cells Accessories
L3-3.1 Signal Cable for mV cells; 6 x 0.35 with shield and PU Jacket
L3-3.3 Signal Cable for 4-20mA cells; 4 x0.35 with shield and PU Jacket
L3-1.14 Readout for 4-20mA load cells
L3-1.15  Readout for mV load cells