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Proximity Sensor Environmental Considerations

Author : KJT Date : 2015-6-6 17:57:12
Proximity Sensor Environmental Considerations
Several environmental factors should be taken into consideration when choosing or working 
with a proximity sensor. These various environments can have an impact on how the proximity 
sensor performs.
Shock and Vibration
Risk factors to consider in high shock and vibration applications include:
 • epoxy type
 • strain on the wires
 • wire size and type
 • housing material
 • mounting surface
 • mounting methods
For assistance in choosing the appropriate materials for optimal performance in your application, 
please contact HSI Sensing.
Severe shock or vibration can change the magnetic sensitivity of a proximity sensor or render it 
non-functional. In severe cases, a crack in the glass capsule of the internal reed switch may occur. 
Dropping a proximity sensor may cause shock damage to the internal reed switch.
See Reed Switch Handling Instructions for additional information.
Thermal
Proximity sensors are manufactured using various housing, wire/cable, potting, and 
insulating materials. All of these materials have their own performance capabilities in 
relation to thermal requirements.
Caution must be taken for each application to avoid thermal shock when transitioning from 
extreme heat to extreme cold. If operating near or above the recommended maximum temperature, 
power and current ratings should be evaluated. Review proximity sensor specification sheets for 
recommended storage and operating temperatures.