Stud mount (preferred)


The mounting location must provide a flat surface of at least 0.5 in. (12.7 mm) in diameter and a case thickness exceeding 0.4 in. (10.2 mm). If this is not possible, use the epoxy mount method instead


Stud mount provides increased reliability, improved frequency response, and increased signal sensitivity.


  1. Prepare the spot face or end mill tool by setting the drill bit depth to a minimum of 0.325 in. (8.255 mm).
  2. Using a wire brush and plant-approved cleaner, clean and degrease the surface area.
  3. Keeping the spot face and end mill tool perpendicular to the machine surface, drill into the mounting location until the surface is smooth to the touch with no noticeable irregularities. This may require the spot face tool to remove as much as 0.04 in. (1.016 mm) or more from the surface.
    Note: If the spot face is not uniform on all sides, it indicates that the spot face tool is not perpendicular to the mounting surface, and the resulting surface will not allow the sensor to be mounted properly. See Sensor mounting diagrams for illustrations of the correct milling process.
  4. Using 1/4-28 in. tap set, tap a pilot hole to a minimum depth of 0.25 in. (6.35 mm).
    See Sensor mounting diagrams for an illustration of tapping a pilot hole.