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F257 Axial Compensated Loadcell

Standard Ranges 80, 120, 160 and 240kN (8 to 24tonnef)
  • High accuracy
  • Misalignment error compensation
  • Highly adaptable inert end fixings
  • Standard 1 year warranty
  • Output rationalised to 2mV/V
  • Traceable calibration with certificate included in the standard price
OPT_f257_loadcell
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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. Its various end fixing options are all inert and easily modified for direct inclusion in mechanical assemblies.

The basic versions of the F257 are all sealed to IP65. If better sealing is required IP67 is available as an option. Integral 4 to 20mA or ±10V output amplifiers can be fitted as an option. Additional information can be found in Engineering Application Sheet E032 and the ICA6H data-sheet.

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

The loadcell’s unique strain system compensates for typical force misalignment in force measurement rigs and industrial weighing systems. Its various end fixing options are all inert and easily modified for direct inclusion in mechanical assemblies.

The basic versions of the F257 are all sealed to IP65. If better sealing is required IP67 is available as an option. Integral 4 to 20mA or ±10V output amplifiers can be fitted as an option. Additional information can be found in Engineering Application Sheet E032 and the ICA6H data-sheet.

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

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Specification

ParameterValueUnit
Non-linearity - Terminal±0.1% RL
Hysteresis±0.1% RL
Creep - 20 minutes±0.05% AL
Repeatability±0.02% RL
Rated output - Rationalised2.0mV/V
Rationalisation tolerance (applies to single direction calibrations)±0.1% RL
Zero load output±4% RL
Temperature effect on rated output per °C±0.002% 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 - Recommended10V
Excitation voltage - Maximum20V
Bridge resistance700Ω
Insulation resistance - Minimum at 50Vdc500MΩ
Inclined load error - concentric at 3塱0.25% RL
Overload - Safe50% RL
Overload - Ultimate100% RL
Sealing - R optionIP65
Sealing - S optionIP67
Weight - Nominal (excluding cable)5.5 to 6.5kg

Order Codes

CodeDescription
F257CFR0KNCompression, flat base, IP65
F257LFR0KNCompression, convex base, IP65
F257TFR0KNTension, stud base, IP65
F257DFR0KNCompression, stud base, IP65
F257UFR0KNBi-directional, stud base, IP65
All F257s are rationalised as standard. Change R to an S for IP67. Integral amplifiers are available with all options.

Structural Stiffness

Range (kN)Stiffness (N/m)
808.0 x 108
1201.2 x 109
1601.6 x 109
2402.4 x 109

Notes

  • AL = Applied load.
  • RL = Rated load.
  • Temperature coefficients apply over the compensated range.

Connections

The loadcell is 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.

Files

TitleTypeFile
Outline drawing of the product.Outline Download
F257CFR0KN All standard rangesSTEP File Download
F257LFR0KN All standard rangesSTEP File Download
F257-T/D/U-FR0KN All standard rangesSTEP File Download
F257 LoadbuttonSTEP File Download
F257 Top plateSTEP File Download
F257 LocknutSTEP File Download
F257 Base plateSTEP File Download
Drawing of F257 fittings.Fittings Download

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