Condition Monitoring

Hertel offers a full range of Condition Monitoring techniques to assist in the implementation of predictive maintenance routines.

Predictive Maintenance


Predictive Maintenance focuses on the operating health of equipment identifying problems allowing corrective measures before they become critical failures. Techniques utilised include vibration analysis, infrared thermography, tribology and emission monitoring.

We can assist in all of these investigations to facilitate:
  • Baseline Development of Routines
  • Data Acquisition and Analysis
  • Regular Monitoring and Analysis
  • Data Management and Reporting
  • Corrective Action and Follow-up

Vibration Monitoring


Vibration Monitoring is the most common method utilised to identify potential defects of rotating components.
We use a range of equipment including the SKF CMVA30 Microlog Analyser, which is intrinsically safe and can therefore be used in restricted areas. Analysis of results is performed by SKF Prism 4 - this software is probably one of the best and most recognized packages on the market and is used to help determine the 'root cause of failure'. This analysis can give early indications of:
  • Alarm level comparisons
  • Bearing Deterioration
  • Lubrication deficiency
  • Insecurity
  • Gear Wear
  • In-Balance
  • Cavitation
  • Misalignment

Infrared Thermography


This is the technique of measuring emitted radiation and displaying this information as a visual image. Using a Flir ThermaCAM we monitor a temperature range of -30°C to 2000°C therefore covering most plant applications. This technique is ideal for inspection of refractory linings, trace-heating systems, pipe blockages and thermal profiling.

Fugitive Emission Monitoring


This is used to measure the release of organic compounds from equipment around seals, packings, glands etc. to allow assessment of performance and compliance with regulations.
We use Micro FID hand held portable equipment for this operation, which is intrinsically safe.

Tribology


This is the branch of engineering that deals with the interaction of surfaces in relative motion such as bearings or gears. We undertake investigations and analysis of lubricants and other data to establish wear rate and condition of components which can lead to design changes in extreme conditions.
  • Viscosity
  • Water Content
  • ISO Cleanliness
  • Debris Particle Count
  • Oxidation of Lubricant
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