Description
F313 Low Profile Donut Loadcell
The F313 is ideally suited to engineering force measurements.
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 centre hole. Alternatively tensile load transfer can be achieved via a tie rod assembly through the centre hole. In this way the loadcell can indirectly measure tensile loads in a “fail-safe” mode.
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.
The F313 is ideally suited to engineering force measurements.
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 centre hole. Alternatively tensile load transfer can be achieved via a tie rod assembly through the centre hole. In this way the loadcell can indirectly measure tensile loads in a “fail-safe” mode.
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.
Specification
| Parameter | Value | Unit |
|---|---|---|
| Non-linearity – Terminal | ±0.5 (10kN) / ±0.5 (20 to 200kN) | % RL |
| Hysteresis | ±0.5 (10kN) / ±0.5 (20 to 200kN) | % RL |
| Creep – 20 minutes | ±0.1 (10kN) / ±0.1 (20 to 200kN) | % AL |
| Repeatability (excluding rotational effects) | ±0.1 (10kN) / ±0.1 (20 to 200kN) | % RL |
| Rated output – Nominal | 1.3 (10kN) / 1.3 (20 to 200kN) | mV/V |
| Rated output – Rationalised | 1.0 (10kN) / 1.0 (20 to 200kN) | mV/V |
| Rationalisation tolerance | ±0.5 (10kN) / ±0.5 (20 to 200kN) | % RL |
| Zero load output | ±4 (10kN) / ±4 (20 to 200kN) | % RL |
| Temperature effect on rated output per °C | ±0.005 (10kN) / ±0.005 (20 to 200kN) | % AL |
| Temperature effect on zero load output per °C | ±0.03 (10kN) / ±0.03 (20 to 200kN) | % RL |
| Temperature range – Compensated | -10 to +50 (10kN) / -10 to +50 (20 to 200kN) | °C |
| Temperature range – Safe | -10 to +80 (10kN) / -10 to +80 (20 to 200kN) | °C |
| Excitation voltage – Recommended | 10 (10kN) / 10 (20 to 200kN) | V |
| Excitation voltage – Maximum | 10 (10kN) / 20 (20 to 200kN) | V |
| Bridge resistance | 350 (10kN) / 700 (20 to 200kN) | Ω |
| Insulation resistance – Minimum at 50Vdc | 500 (10kN) / 500 (20 to 200kN) | MΩ |
| Overload – Safe | 50 (10kN) / 50 (20 to 200kN) | % RL |
| Overload – Ultimate | 400 (10kN) / 400 (20 to 200kN) | % RL |
| Sealing | IP65 | |
| Weight – Nominal (excluding cable) | 15 (10kN) / 20-260 (20 to 200kN) | g |
Order Codes
| Code | Description |
|---|---|
| F313CFR0K0 | Compression, IP65, unrationalised |
| F313CFR0KN | Compression, IP65, rationalised |
| Change the K to an H for the 1 tonnef range. |
Structural Stiffness
| Range (kN) | Stiffness (N/m) |
|---|---|
| 10 | 1.1 x 109 |
| 20 | 2.2 x 109 |
| 40 | 4.4 x 109 |
| 80 | 8.8 x 109 |
| 100 | 7.7 x 109 |
| 120 | 7.1 x 109 |
| 160 | 8.0 x 109 |
| 200 | 1.0 x 1010 |
Notes
- AL = Applied load.
- RL = Rated load.
- Temperature coefficients apply over the compensated range.
- The load must be applied directly through the central loading axis.
Connections
For ranges up to 4 tonnef the loadcell is fitted with 2 metres of PVC insulated 4 core screened cable 
type 7-1-4C. Ranges above 4 tonnef are fitted with 7-2-4C cable.
Excitation + = Red, Excitation – = Blue, Signal + = Yellow, Signal – = Green, Screen = Orange.
The screen is not connected to the loadcell body.
When this loadcell is rationalised 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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