Novatech F308 Axial Loadcell

Good repeatability
Compact axial geometry
Space saving male / female fixing
Sealed to IP65
Standard 2 year warranty

F308 Axial Loadcell

The F308 is a compact axial loadcell with improved EFI compared to diaphragm loadcells. The inert base and top fixings with spanner flats allow ease of installation. The strain geometry possesses a plane with good EFI performance defined as perpendicular to the loading axis and the spanner flats. This is particularly useful when a loadcell is used to support mass with its weight acting perpendicular to the measurement axis.

We are happy to design variants of this loadcell to meet your specific requirements. Versions can be manufactured for higher temperature operation. Ranges from 100kg to 250kg 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.

Note: EFI = Extraneous Force Immunity, see Engineering Application Sheet E008 for details.

**Ordering Codes**
See the loadcell ordering code sheet for more details. Add range in the required force units.
F308DFR0H0	Compression, IP65, unrationalised	F308DFR0HN	Compression, IP65, rationalised
F308TFR0H0	Tension, IP65, unrationalised	F308TFR0HN	Tension, IP65, rationalised
F308UFR0H0	Bi-directional, IP65, unrationalised	F308UFR0HN	Bi-directional, IP65, rationalised

**F308 Specification**
Parameter	20 to 50kg	100 to 250kg	Unit
Non-linearity - Terminal	±0.2	±0.25	% RL
Hysteresis	±0.1	±0.1	% RL
Creep - 20 minutes	±0.2	±0.1	% AL
Repeatability	±0.05	±0.05	% RL
Rated output - Nominal	1.2	1.2	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	±0.01	±0.01	% 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	10	V
Bridge resistance	350	350	Ω
Insulation resistance - Minimum at 50Vdc	500	500	MΩ
Structural stiffness	7.7 x 10⁷	1.1 x 10⁸	N/m
Overload - Safe	50	50	% RL
Overload - Ultimate	200	200	% RL
Sealing	IP65	IP65
Weight - Nominal (excluding cable)	50	70	g

The 20 and 50kg ranges are manufactured in aluminium; the 100 to 250kg ranges are manufactured in stainless steel.

Notes

AL = Applied load.
RL = Rated load.
AO = Average of tension and compression outputs for full load.
Temperature coefficients apply over the compensated range.

Connections

The loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 7-1-4C.

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.

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.
PDF data-sheet	Printable data-sheet. Right click on the link to download the file.

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