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Machine and Conditioning Monitoring

Industrial manufacturing processes inevitably generate vibration and noise. This is particularly true of any rotating machinery, in many applications heat also becomes an issue. It is the nature of vibration to be extremely damaging and as a result, industrial machines undergo regular monitoring to check the health of bearings and other structural elements, with the goal of predicting potential failures before they occur and cause significant damage and cost.
For over 4 decades DJB has been an integral part of the nuclear power generation capability in the UK. There are many sources of vibration in a nuclear power station and an equal number of critical processes that rely on massive machinery to generate the vast quantities of electricity required by the UK public.

Typical accelerometers and instrumentation used:

A/140 series – Low cost range of accelerometers
VS1 – Handheld vibration meter for spot checks
Junction boxes – Designed and built specific to your requirements. 
A/81, A/52 – High temperature options.

Application note:

The DJB range of flange mounted high temperature industrial accelerometers, including the A/81 and A/52 models, have been used in a number of different locations within power stations including gas circulators for over 40 years. These are extreme conditions requiring high temperature capabilities for both the accelerometer and cables. Using stainless steel mineral insulated cables welded to the body of the accelerometer provides 800°C functionality to protect the signal as it is carried back to the monitoring equipment. The A/52 and A/81 both use the DJB Konic Shear® design to provide long term stability
against cross axis error whilst also using high temperature piezoelectric ceramics to achieve operating temperatures up to 400°C.

• Konic Shear® for long term cross axis stability
• High temperature
• High reliability
• Proven track record of performance
• Integral stainless steel cables or connectors
• Low cost range available