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  5. ALF300 Sideload Rejection Force Sensor

ALF300 Sideload Rejection Force Sensor

The complex beam structure offers reliable error compensation in a cylindrical, 'donut' style footprint

3D-tittare för stegfiler

Fördelar med

  • Realistisk representation och bättre visualisering av utrymmet
  • Tidig upptäckt av installationsproblem
  • Värdefulla data för efterföljande processer
  • Förbättring av teknisk dokumentation
 Se tekniska specifikationer

Nyckelfunktioner

  • Full Load Range: 1kN, 2kN, 5kN, 10kN, 20kN, 50kN, 100kN, 200kN, 400kN
  • High performance
  • Misalignment error compensation
  • Formulaic error quantification
  • Excellent Sideload rejection < 1%RL error for 20%RL transverse loads and much less for vectors

About the ALF300 Sideload Rejection Force Sensor

Benefiting from advanced machining techniques, the ALF300’s complex beam structure offers reliable error compensation in a cylindrical, 'donut' style footprint.

Whereas the long established 'donut' products such as the ALF202 require near perfect loading conditions, the ALF300's unique strain system compensates for typical axial misalignment as well as the combination of large sideloads and small moments. This has been used to good effect in ‘Junkers’ test machines, subjected to an extreme, rapid cycling of large sideloads, for bolt tension and 'self-loosening' fastener tests.

The circular patterns of fixing holes are deliberately over engineered to withstand potentially large moment effects and allow tension, compression and bi-directional versions as standard. There is also the added potential for customer supplied adapter plates to give versatile end fixing options.

We are happy to design variants of this loadcell to meet your specific requirements. Ranges above 5kN can be manufactured for fully compensated operation up to +250°C. Please consult our engineering department for further information.

Ranges up to 5kN are manufactured in aluminium; all other ranges are manufactured in stainless steel.

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 50kN the loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 7-2-4C. Ranges above 50kN 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.

For rationalized ranges up to 5kN the resistors are housed in a capsule located in the loadcell cable 100mm from the free end. Capsule dimensions are Ø10mm by 57mm.

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ALF300 Sideload Rejection Force Sensor

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Tekniska specifikationer

Specifikation Värde
Bridge resistance 700 Ω
Creep - 20 minutes ±0.05% AL
Excitation voltage - maximum 20V
Excitation voltage - recommended 10V
Fatigue life 10^8 ±RL cycles
Hysteresis ±0.03% RL
Insulation resistance - minimum at 50vdc 500 MΩ
Load direction Tension, compression, bi-directional
Maximum permissible sideload 60% RL
Measurement range 1kN, 2kN, 5kN, 10kN, 20kN, 50kN, 100kN, 200kN, 400kN
Non-linearity - terminal ±0.03% RL
Output symmetry ±0.2%AO
Overload - safe 100 % RL
Overload - ultimate 200 % RL
Rated output - nominal 1.2mV/V
Rated output - rationalised 1.0 mV/V
Rationalisation tolerance (applies to single direction calibrations) ±0.1% RL
Repeatability ±0.02% RL
Sealing IP65
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
Zero load output ±4% RL

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