Turck is offering what is believed to be the world's smallest inductive magnetic cylinder sensor. The tiny BIM-INT is a mere 5 mm wide x 6 mm high, and was specifically designed for use in pneumatic cylinders.
The BIM-INT completes Turck's sensitive permaprox line, already in use on most conventional pneumatic cylinders. Permaprox sensors provide a precise sensing point anywhere along the cylinder stroke, without the multiple actuation problems of reed and Hall effect switches. They have a patented C-shaped ribbon of amorphous metal that corrals the signal and pinpoints the exact location of the magnet in non-ferrous wall cylinders.
Because of their high sensitivity, permaprox sensors, including the new BIM-INT, are not dependent on magnetic field strength, allowing actuation magnets with a variety of magnetic strengths to be used with them. They work within a magnetic field strength of 3,8 to 35mT (38 to 350 Gauss). This eliminates concerns about magnet deterioration or matching sensor to magnet strength. Users can mount BIM-INT sensors directly adjacent to one another without electrical crosstalk. The BIM-INT's actuation zone is between 7 and 20 mm, depending on the cylinder diameter and magnet strength. It features wide over travel and clear signal indication using highly visible LEDs.
Like the rest of the permaprox line, this sensor is completely solid-state. It is a 3-wire DC sensor with no moving contacts. The BIM-INT includes short-circuit protection and an integrated stainless steel clamping screw to prevent sensor vibration. Due to a new injection moulding technique, this package is sealed and free of shrink holes. It is especially suitable for applications with exposure to wash down. The housing is rugged and resistant to harsh environments. The BIM-INT's operating temperature range is - 25 to +70°C. It installs from the top directly into cylinder's dovetail slot, using only a screwdriver.
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