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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

Specification

Parameter

Value

Unit

Non-linearity - Terminal

±0.1

% RL

Hysteresis

±0.1

% 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

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 - 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 (excluding cable)

5.5 to 6.5

kg

All standard ranges are manufactured in stainless steel.

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.

Order Codes

Code

Description

F257CFR0KN

Compression, flat base, IP65

F257LFR0KN

Compression, convex base, IP65

F257TFR0KN

Tension, stud base, IP65

F257DFR0KN

Compression, stud base, IP65

F257UFR0KN

Bi-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 - Nominal

Range (kN)

Stiffness (N/m)

80

8.0 x 108

120

1.2 x 109

160

1.6 x 109

240

2.4 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

Type

Title

Download

Outline

Outline drawing of the product.

Download

STEP File

F257CFR0KN All standard ranges

Download

STEP File

F257LFR0KN All standard ranges

Download

STEP File

F257-T/D/U-FR0KN All standard ranges

Download

STEP File

F257 Loadbutton

Download

STEP File

F257 Top plate

Download

STEP File

F257 Locknut

Download

STEP File

F257 Base plate

Download

Fittings

Drawing of F257 fittings.

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