• Custom force ranges available
  • Simple installation
  • Excellent Moment rejection <1%AL error at 500mm moment arm
  • High structural stiffness
  • Traceable calibration with certificate included in the standard price
  • Standard 2 year warranty

F320 Moment Rejection Cantilever Bracket Loadcell

The F320 is a heavy duty variant on the binocular bending beam loadcell. It is intended for pure force measurement, but targeted at applications involving large moments/moment arms. The loadcell is designed to be bolted to a large, flat surface and used as a bracket to support a cantilever beam. A cantilever bracket loadcell can be used at both ends to fully support the beam, provided thermal expansion is allowed for somewhere in the system. The F320 can also be mounted against a floor or ceiling plate to act as a strut support in much the same way. The F320 is able to support large sideloads without effecting measurements.

The binocular bending beam construction has good moment immunity resulting in very small errors for changes in the force application point. This point may vary not only in terms of distance along the cantilever beam, but also in a manner that would apply a small torque around the axis of the beam. Although the loadcell is compensated for induced errors, there is a maximum supported moment for each range. Standard F320 loadcells can withstand full rated load at half a metre full cantilever. Further details are given in Engineering Sheet E037. It is important to contact our engineering department to discuss loadcell selection to suit any load application or range.

We are happy to design variants of this loadcell to meet your specific requirements. Versions can be manufactured for fully compensated operation up to +250°C. Please consult our engineering department.

Details of our other loadcell families can be found in the Product Guide.

Ordering Codes

See the loadcell ordering code sheet for more details. Add range in the required force units.
F320CFR0K0 Compression, unrationalised F320CFR0KN Compression, rationalised
F320TFR0K0 Tension, unrationalised F320TFR0KN Tension, rationalised
F320UFR0K0 Bi-directional, unrationalised F320UFR0KN Bi-directional, rationalised

F320 Specification

Parameter Value Unit
Non-linearity - Terminal ±0.05 % RL
Hysteresis ±0.05 % RL
Creep - 20 minutes ±0.05 % AL
Repeatability ±0.02 % RL
Rated output – Nominal 1.2 mV/V
Rated output - Rationalised 1.0 mV/V
Rationalisation tolerance (applies to single direction calibrations) ±0.1 % RL
Output symmetry ±0.2 %AO
Fatigue life 108 ±RL cycles
Zero load output ±4 % RL
Temperature effect on rated output per °C ±0.005 % AL
Temperature effect on zero load output per °C ±0.01 % RL
Temperature range - Compensated -10 to +50 °C
Temperature range - Safe -10 to +80 °C
Excitation voltage - Recommended 10 V
Excitation voltage - Maximum 20 V
Bridge resistance 700 Ω
Insulation resistance - Minimum at 50Vdc 500
Overload (applied at loadcell face) – Safe 100 % RL
Overload (applied at loadcell face) – Ultimate 200 % RL
Overload (applied 500mm from loadcell face) – Safe 25 % RL
Overload (applied 500mm from loadcell face) – Ultimate 50 % RL
Ultimate sideload capacity 100 % RL
Sealing IP65  
Weight - Nominal (excluding cable) 8.5 kg

All ranges are manufactured in stainless steel.

Structural stiffness - Nominal

Range (kN) Stiffness (N/m) Range (kN) Stiffness (N/m) Range (kN) Stiffness (N/m)
5 2.3 x 108 10 5.0 x 108 50 1.8 x 109
50 7.1 x 109        

Notes

  1. AL = Applied load.
  2. RL = Rated load.
  3. Temperature coefficients apply over the compensated range.
  4. AO=Average of tension and compression outputs for full load.

Connections

All ranges are fitted with 2 metres of PVC insulated 4 core screened cable type 16-2-4C.

Excitation + = Red, Excitation - = Blue, Signal + = Yellow, Signal - = Green, Screen = Orange.

Reverse the signal connections to obtain a positive signal in tension mode. The screen is not connected to the loadcell body.

Additional Information

Outline Outline drawing of the product.
STEP file STEP files for standard ranges.
Stock List Loadcell availability.
PDF data-sheet Printable data-sheet. Right click on the link to download the file.

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