ALF202 Donut Ring Force Sensor
Very high structural load limit
Key features
- Full load range: 10kN, 25kN, 50kN, 100kN, 200kN
- Dimensions (mm): OD83 x ID45 x H66
- Non-lin./hysteresis: 0.1/0.1% RL
- Hardened stainless steel body
- Sealed to IP65
- Very high structural load limit
About the ALF202 Donut Ring Force Sensor
The ALF202 is ideally suited to engineering force measurements including through center safety testing of cables, rods and bolts. It is designed for easy installation, usually between two flat faces bearing on its loading rings, either unattached or with retaining spigots positioned in the center hole. Alternatively tensile load transfer can be achieved via a tie rod assembly through the center hole. In this way the loadcell can indirectly measure tensile loads in a “fail-safe” mode. A load button and base plate are available for the ALF202.
We are happy to design variants of this loadcell to meet your specific requirements. Versions can be manufactured for fully compensated operation up to +250°C. Please consult our engineering department.
Geometry: Axial strain cylinder in weather sealed case, with raised end load bearing faces and hole right through. For use in compression or in fail-safe tensile applications.
All standard ranges are manufactured in stainless steel.
Connections
The loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 16-2-4C.
- Excitation + = Red Signal + = Yellow Screen = Orange
- Excitation - = Blue Signal - = Green
The screen is not connected to the loadcell body.
Do you need this sensor for your next project?
Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.
Product downloads
Talk to our experts
Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.
Talk to an expertTechnical Specifications
| Specification | Value |
|---|---|
| Bridge resistance | 700 Ω |
| Creep - 20 minutes | ±0.05% AL |
| Excitation voltage - maximum | 20V |
| Excitation voltage - recommended | 10V |
| Hysteresis | ±0.1% RL |
| Insulation resistance - minimum at 50vdc | 500 MΩ |
| Load direction | Compression |
| Measurement range | 10kN, 25kN, 50kN, 100kN, 200kN |
| Non-linearity - terminal | ±0.1% RL |
| Overload - safe | 50% RL |
| Overload - ultimate | 400% RL |
| Rated output - nominal | 1.2mV/V |
| Rated output - rationalised | 1.0mV/V |
| Rationalisation tolerance | ±0.5% 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 | ±0.03% RL |
| Temperature range - compensated | -10 to +50°C |
| Temperature range - safe | -10 to +80°C |
| Weight - nominal (excluding cable) | 1.6 to 1.8kg |
| Zero load output | ±4% RL |
Related products
Need something else?
ALF203 Donut Ring Force Sensor
- Measuring range: up to 400 or 800 kN
- Tensile applications are ‘fail-safe’
- Different specifications possible
ALF205 Donut Ring Force Sensor
- Measuring range: up to 1 or 2 MN
- Center safety testing of cables, rods & bolts
- Non-lin./hysteresis: 0.5% RL
