Testing micro-switches

• Non-linearity as low as 0.1 % F.S.
• Low overall height
• Easy to provide overload protection
• Can measure tensile and compressive loads

Task

The requirement is to test the characteristic curve of micro-switches on the production line. This quality assurance measure requires a load cell with overall height and overload protection, which safeguards the load cell from damage caused by an inadmissibly high operating force in a faulty switch. A set-screw limiting the travel of the 8511 load cell provides overload protection. The measurement displacement is measured alongside the operating force, and the force/displacement curve analyzed by a DIGIFORCE^® 9311 connected to the sensors.

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