Direct Adhesive Mount Procedure; Magnetic Mount Procedure - PCB Piezotronics IMI SENSORS 640A10 Installation And Operating Manual

Direct Adhesive Mount Procedure

For restrictions of space or for convenience, most sensors (with the exception of integral stud models) can be
adhesive-mounted directly to the machine surface.
STEP 1 Prepare a smooth, flat mounting surface. A minimum surface finish of 63 µin [0,00016 mm] generally
works best.
STEP 2 Place a small portion of adhesive on the underside of the sensor. Firmly press down on the top of the
assembly to displace any adhesive. Be aware that excessive amounts of adhesive can make sensor removal
difficult.
figure 7 – direct adhesive mounting
Firmly Press Down
Adhesive

Magnetic Mount Procedure

Magnetic mounting provides a convenient means for making portable measurements and is commonly used for
machinery monitoring and other portable or trending applications.
Note: The correct magnet choice and an adequately prepared mounting surface is critical for obtaining reliable
measurements, especially at high frequencies. Poor installations can cause as much as a 50% drop in the sensor
frequency range.
Not every magnet is suitable for all applications. For example, rare earth magnets are commonly used because
of their high strength. Flat magnets work well on smooth, flat surfaces, while dual-rail magnets are required for
curved surfaces. In the case of non-magnetic or rough surfaces, it is recommended that the user first weld, epoxy
or otherwise adhere a steel mounting pad to the test surface. This provides a smooth and repeatable location for
mounting.
INDUSTRIAL MONITORING INSTRUMENTATION DIVISION
Typical
Accelerometer
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