TE CONNECTIVITY SENSORS
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MODEL 89X1N & 85X1N VIBRATION SENSOR
Ex rated document, no changes allowed unless authorized by Ex agency
Page 7
20023687-24 Rev. A, 2022-10-14
SENSOR MOUNTING
The vibration sensor should be stud mounted on a clean, flat surface. The correct mounting torque for the sensor
is 2.2 to 2.9 lb-ft (3 to 4 N-m). It is recommended to put a small amount of silicon grease on the bottom of the
vibration sensor before mounting. This provides better coupling of vibration signals into the sensor.
WARNING – Do NOT tighten the sensor by twisting on the housing. Damage to the sensor WILL occur. Tighten to
the correct torque using a wrench on the hex base.
MOUNTING METHOD & ACCESSORIES
Shown below is a special mounting options available for the 8931N/8531N triaxial sensor. It consists of three
machine parts to build one adaptor. This allows the 8931N/8531N sensors to be rotated in order to align the X
and Y axes in the desired direction.
Open end wrench size: 1-7/16in or 36mm
8X31 Adjustable Angle Mounting Block
20027468-00
Sensor Hex Base