Micro-Button-Load-Cell

Micro Button Load Cell

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Description

Applied Measurements CDFT micro button load cell is designed for compression measurement applications where the absolute minimum of space is available for transducer mounting.

With capacities from 10N to 250N available and measuring just 9mm in diameter and 2.9mm in height, the CDFT is the smallest standard button load cell that we offer.  If you need to measure lower or higher forces, the CDFM3 miniature button load cell is available in capacities from 0-100N right up 0-20kN and is slightly larger at 30mm diameter and 12mm in height.

Applied Measurements CDFT micro button load cell is ideal for retro-fitment and is ideal to use in robotics and effectors, hoist and winch loads, micro-component assembly tools and machinery, keyboard button and telephone control and mechanical switches.

Product Dimensions

micro button load cell CDFT outline dimension drawing

Wiring Details

Wire Designation
Red +ve excitation
Blue -ve excitation
Green +ve signal
Yellow -ve signal
Screen To ground – not connected to load cell body

Features

  • Capacities: 0-10N up to 0-250N
  • Ø9mm and 2.9mm Height
  • Environmental Protection: IP53
  • Accuracy: <±0.25%/RC
  • Integral Load Button

Spesification

Rated Capacity N 0-10, 0-25, 0-50, 0-100, 0-200, 0-250
Operating Modes Compression Only
Sensitivity (RO) mV/V (nominal) 10N = 0.4 25N = 0.5 50N = 1.0 100N = 2.0 200N = 2.0 250N = 2.0
Zero Balance/Offset ±%/Rated Output <1.0
Non-Linearity ±%/Rated Output <0.25
Hysteresis %/Rated Output <0.25
Repeatability %/Rated Output <0.1
Temperature Effect on Zero ±%/Rated Output/ ˚C <0.01
Temperature Effect on Sensitivity ±%/Applied Load/ ˚C <0.02
Input Resistance Ohms 1000 nominal
Output Resistance Ohms 1000 nominal
Insulation Resistance Megohms >5000 @ 50Vdc
Excitation Voltage Volts AC or DC 5 recommended (2-10 acceptable)
Operating Temperature Range ˚C -40 to +125 (cell only)
Compensated Temperature Range ˚C 0 to +100
Storage Temperature Range ˚C -40 to +125
Safe Overload % of Rated Capacity 150
Ultimate Overload % of Rated Capacity 300
Deflection @ Rated Capacity mm <0.02
Fundamental Resonant Frequency* kHz >4
IP Rating (Environmental Protection) IP53
Weight grams ~2 (excluding cable)
Fatigue Life 108 cycles typical (109 cycles on fatigue-rated version)
Cable Length (as standard) metres 2 (1.5m to compensation module + 0.5m tail)
Cable Type Ø1.35 screened PTFE from cell, Ø3.3 screened PVC from compensation module
Construction Materials Stainless Steel
Resolution 1 part in 250,000 (with appropriate instrumentation)
*The resonant frequency is calculated with the body of the load cell attached to a large plate, ensuring that only the sensing element oscillates. This is vital to achieve the highest natural frequency and subsequent frequency response.

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