Key features

Low cost axial force sensor
Measurement range: 2000kg, 4000kg
Tension, compression and bi-directional
Non-lin./hysteresis: 2.0/2.0% RL
Dimensions (mm): Ø38 x 25
Low profile
Sealed to IP65

About the ALF303 Miniature Load Cell

The ALF303 is aimed at the volume OEM user who requires a reliable high quality axial sensor at a low price for low accuracy compressive force measurement in equipment. It is manufactured from stainless steel and sealed to IP65 for long life in typical industrial operating conditions. The sensor is designed for simple mounting on a smooth flat surface.

Each sensor is labelled with its output for full range. A calibration certificate is not supplied as standard.

We are happy to design variants of this sensor to meet your specific requirements. Please consult our engineering department.

Other features ALF303

Hardened stainless steel
Standard 2 year warranty

All standard ranges are manufactured in stainless steel.
When the 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.

Notes
1. AL = Applied load. 3. Temperature coefficients apply over the compensated range.
2. RL = Rated load. 4. The load must be applied directly through the central loading axis.

Connections
The loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 7-2-4C.
Excitation + = Red Signal + = Yellow Screen = Orange
Excitation - = Blue Signal - = Green
The screen is not connected to the loadcell body.

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Product downloads

Alf303 miniature force sensor althen

Have it your way

Not exactly what you’re looking for? We offer standard sensors but can also help you with a tailor-made sensor or a complete measuring solution. Please contact us for advice or budgetary pricing.

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Technical Specifications

Specification	Value
Bridge resistance	350 Ω
Creep - 20 minutes	±0.1% AL
Excitation voltage - maximum	10V
Excitation voltage - recommended	10V
Hysteresis	±2.0% RL
Insulation resistance - minimum at 50vdc	500 MΩ
Load direction	Compression
Measurement range	2000kg, 4000kg
Non-linearity - terminal	±2.0% RL
Overload - safe	50% RL
Overload - ultimate	200% RL
Rated output - nominal	2 ±20%mV/V
Rated output - rationalised	2.0mV/V
Rationalisation tolerance	±1% RL
Repeatability	±0.1% RL
Sealing	IP65
Temperature effect on rated output per °c	±0.04% AL
Temperature effect on zero load output per °c	±0.05% RL
Temperature range - compensated	-10 to +50°C
Temperature range - safe	-10 to +80°C
Weight - nominal (excluding cable)	120g
Zero load output	±6% RL

ALF303 Miniature Load Cell