Novatech F313 Low Profile Donut Loadcell

Low profile with centre hole
Ranges to suit bolt sizes from M6 to M36
Stainless steel construction
Tensile applications are ‘fail-safe’
Standard 2 year warranty

F313 Low Profile Donut Loadcell

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 on a wide range of OEM or end-user applications.

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.

Details of our other loadcell families can be found in the Loadcell Specifier Guide.

**Ordering Codes**
See the loadcell ordering code sheet for more details. Add range in the required force units.
F313CFR0K0	Compression, IP65, unrationalised	F313CFR0KN	Compression, IP65, rationalised
Change the K to an H for the 1 tonne range.

**F313 Specification**
Parameter	1tonne	2 - 20tonne	Unit
Non-linearity - Terminal	±0.5	±0.5	% RL
Hysteresis	±0.5	±0.5	% RL
Creep - 20 minutes	±0.1	±0.1	% AL
Repeatability (excluding rotational effects)	±0.1	±0.1	% RL
Rated output - Nominal	1.3	1.3	mV/V
Rated output - Rationalised	1.0	1.0	mV/V
Rationalisation tolerance	±0.5	±0.5	% RL
Zero load output	±4	±4	% RL
Temperature effect on rated output per °C	±0.005	±0.005	% AL
Temperature effect on zero load output per °C	±0.03	±0.03	% RL
Temperature range - Compensated	-10 to +50	-10 to +50	°C
Temperature range - Safe	-10 to +80	-10 to +80	°C
Excitation voltage - Recommended	10	10	V
Excitation voltage - Maximum	10	20	V
Bridge resistance	350	700	Ω
Insulation resistance - Minimum at 50Vdc	500	500	MΩ
Overload - Safe	50	50	% RL
Overload - Ultimate	400	400	% RL
Sealing	IP65	IP65
Weight - Nominal (excluding cable)	15	20-260	g

All standard ranges are manufactured in stainless steel.

**Structural stiffness - Nominal**
Range (kN)	Stiffness (N/m)	Range (kN)	Stiffness (N/m)	Range (kN)	Stiffness (N/m)
10	1.1 x 10⁹	80	8.8 x 10⁹	160	8.0 x 10⁹
20	2.2 x 10⁹	100	7.7 x 10⁹	200	1.0 x 10¹⁰
40	4.4 x 10⁹	120	7.1 x 10⁹

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 tonnes the loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 7-1-4C. Ranges above 4 tonnes 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.

**Additional Information**
Outline	Outline drawing of the product.
Stock List	Loadcells normally available for despatch within 24 hours.
PDF data-sheet	Printable data-sheet. Right click on the link to download the file if you are using Internet Explorer.

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