• Low force loadcell
  • Totally passive design
  • Foil strain gauges
  • High thermal stability
  • Quantified extraneous load error data
  • Traceable calibration with certificate included in the standard price
  • Minimal errors from extraneous loads

F328 Low Force Universal Loadcell

The F328 is an axial low force universal loadcell with quantified extraneous load and moment rejection.

Its high resistance 5000Ω strain gauge bridge makes this loadcell ideal for battery powered applications such as a laptop computer with a DSC USB loadcell digitiser or a hand held TR150 loadmeter.

The strain system exploits a laminated structure producing excellent extraneous force and moment rejection together with minimal translational deflection.

More information can be found in Engineering Application Sheet E034.

We are happy to design variants of this loadcell to meet your specific requirements. 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.
F328DF00B0 Compression, unrationalised F328DF00BN Compression, rationalised
F328TF00B0 Tension, unrationalised F328TF00BN Tension, rationalised
F328UF00B0 Bi-directional, unrationalised F328UF00BN Bi-directional, rationalised

F328 Specification

Parameter Value Unit
Non-linearity - Terminal ±0.15 % RL
Hysteresis ±0.15 % 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) ±0.5 % RL
Zero load output ±10 % 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 5000 Ω
Insulation resistance - Minimum at 50Vdc 500
Overload - Safe 50 % RL
Overload - Ultimate 100 % RL
Weight - Nominal (excluding cable) 9 to 29 g

The ranges up to 50N are manufactured in aluminium; ranges above 50N are manufactured in stainless steel.

Structural stiffness - Nominal

Range (N) Stiffness (N/m) Range (N) Stiffness (N/m) Range (N) Stiffness (N/m)
10 5.3 x 105 100 2.2 x 106    
20 1.0 x 106 200 4.3 x 106    
50 2.6 x 106 500 1.1 x 107    

Notes

  1. AL = Applied load.
  2. RL = Rated load.
  3. Temperature coefficients apply over the compensated range.

Connections

The loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 7-1-4C.

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.

This loadcell has compensation components housed in a capsule located in the loadcell cable 100mm from the free end. Capsule dimensions are Ø10mm by 57mm.

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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