• High accuracy
  • Misalignment error compensation
  • Highly adaptable inert end fixings
  • Standard 2 year warranty
  • Output rationalised to 2mV/V
  • Traceable calibration with certificate included in the standard price

F256 Axial Compensated Loadcell

Geometry: Beam and diaphragm combination. Tension, compression and bi-directional options are available. All standard bi-directional loadcells are calibrated in both modes.

The loadcell's unique strain system compensates for typical force misalignment in force measurement rigs and industrial weighing systems. Maximum error in axial force component measurement is limited to 0.25% within a 3° angle swept through 360° around the loadcell axis. Its various end fixing options are all inert and easily modified for direct inclusion in mechanical assemblies.

The basic versions are all sealed to IP65 with IP67 available as an option. Integral 4 to 20mA or ±10V output amplifiers can be fitted as an option, see the ordering code section. See Engineering Application Sheet E032 and the ICA6H data-sheet for more information.

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.

A special version of the F256 loadcell widely used in Formula 1 racing is the Set-up wheel loadcell.

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.
F256CFR0KN Compression, flat base, IP65 F256EFR0KN Tension, eye base, IP65
F256LFR0KN Compression, convex base, IP65 F256AFR0KN Compression, female base, IP65
F256TFROKN Tension, stud base, IP65 F256GFR0KN Tension, female base, IP65
F256DFR0KN Compression, stud base, IP65 F256JFR0KN Bi-directional, female base, IP65
F256UFR0KN Bi-directional, stud base, IP65    
All F256s are rationalised as standard. Change R to an S for IP67. Integral amplifiers are not available with A, G or J options in the standard body height. We can manufacture specials with increased height if integral amplifiers are required.

F256 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 - Rationalised 2.0 mV/V
Rationalisation tolerance (applies to single direction calibrations) ±0.1 % RL
Output symmetry ±0.3 %AO
Zero load output ±4 % RL
Temperature effect on rated output per °C ±0.005 % AL
Temperature effect on zero load output per °C ±0.005 % 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
Inclined load error - concentric at 3° ±0.25 % RL
Overload - Safe 50 % RL
Overload - Ultimate 100 % RL
Sealing - R option IP65  
Sealing - S option IP67  
Weight - Nominal (T version excluding cable) 200-800N 0.1 kg
  1.25-5kN 0.3 kg
  10-60kN 1.0 kg

Ranges up to 800N are manufactured in aluminium; all other ranges are manufactured in stainless steel.

Structural stiffness - Nominal

Range (N) Stiffness (N/m) Range (kN) Stiffness (N/m) Range (kN) Stiffness (N/m)
200 7.8 x 106 1.25 1.9 x 107 20 2.0 x 108
400 2.3 x 107 2.5 3.9 x 107 40 4.0 x 108
800 1.2 x 107 5 7.8 x 107 60 6.0 x 108
    10 1.0 x 108    

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

For ranges up to 5kN the loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 7-2-4C. Ranges above 5kN are fitted with 16-2-4C cable.

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.
Fittings Drawing of F256 fittings.
Mounting Drawing of a typical size 1 F256 mounting assembly. (20 to 500kgf)
Mounting Drawing of a typical size 2 F256 mounting assembly. (1 to 6tonnef)
PDF data-sheet Printable data-sheet. Right click on the link to download the file.
F256-Z0795 Setup wheel loadcell data-sheet.

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