Temperature Monitoring for Bearings, Motors and Electrical Cabinets

Choose the sensing method and location

Compare contact probes, embedded sensors and non-contact thermal measurements for the application. Record response time, range and mounting limitations. A cabinet air sensor, motor housing sensor and bearing probe observe different conditions. Installation near electrical equipment must be designed and performed under the appropriate site procedures by qualified personnel.

Account for load and environment

Log ambient temperature and operating load where relevant. Warm-up, ventilation changes and seasonal conditions can shift normal readings. Use applicable equipment limits and a reviewed baseline instead of a universal temperature alarm. Keep a record of sensor position because relocation can change the trend even when the machine has not changed.

Understand non-contact measurement limits

Thermal imaging depends on surface properties, reflections, viewing geometry and instrument settings. A shiny metal surface can give a misleading apparent temperature. Validate the method for the actual material and inspection distance. Ordinary visible windows or covers may not provide the intended thermal view; verify the complete optical path.

Design actionable trend review

Set suitable persistence, rate-of-change review and sensor-failure detection. An elevated temperature may justify investigation but does not identify its cause alone. Compare with load and other measurements, and document findings after cleaning, lubrication or repair. Test alarm delivery and recovery without deliberately overheating equipment.

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