ALF328 Cylindrical Force Sensor
Low force universal loadcell
Nyckelfunktioner
- Full load range: 10N, 20N, 50N, 100N, 200N, 500N
- Non-lin./hysteresis: 0.15/0.15% RL
- Totally passive design
- Wheatstone bridge device
- Foil strain gauges
- High thermal stability
About the ALF328 Cylindrical Force Sensor
The ALF328 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. Althen has quantified the errors present with combinations of side load and associated induced moments in Engineering Application Sheet E034.
We are happy to design variants of this loadcell to meet your specific requirements. Please contact our sales department.
The ranges up to 50N are manufactured in aluminium; ranges above 50N are manufactured in stainless steel. 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.
Connections
The loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 7-1-4C.
Excitation + = Red Signal + = Yellow Screen = Orange
Excitation - = Blue Signal - = Green
The screen is not connected to the loadcell body.
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Prata med en expertTekniska specifikationer
| Specifikation | Värde |
|---|---|
| Bridge resistance | 5000Ω |
| Creep - 20 minutes | ±0.05% AL |
| Excitation voltage - maximum | 20V |
| Excitation voltage - recommended | 10V |
| Hysteresis | ±0.15% RL |
| Insulation resistance - minimum at 50vdc | 500 MΩ |
| Load direction | Compression, tension, bi-directional |
| Measurement range | 10N, 20N, 50N, 100N, 200N, 500N |
| Non-linearity - terminal | ±0.15% RL |
| Overload - safe | 50% RL |
| Overload - ultimate | 100% RL |
| Rated output - nominal | 1.2mV/V |
| Rated output - rationalised | 1.0mV/V |
| Rationalisation tolerance (applies to single direction calibrations) | ±0.5% RL |
| Repeatability | ±0.02% 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 |
| Weight - nominal (excluding cable) | 9 to 29g |
| Zero load output | ±10% RL |
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