Our Ethos

In recognition of the special knowledge and skills needed for the diagnosis of deterioration of plant and machinery and the development of faults, the Institution of Diagnostic Engineers (DIAGS) was founded to promote the education and training of such persons. Dr. Ralph Collacott started the organisation in 1981. He recognised the need for an institution to encompass all engineers dealing with diagnostics, fault finding, condition monitoring in all areas of industry, regardless of their academic qualification. Within its first six months, DIAGS had over 400 members and continued to grow, with members across many areas of engineering disciplines such as aerospace, marine, automotive and medical.

Sadly Dr. Collacott passed away in 1996. The Institution was then incorporated as a Company limited by Guarantee and in September 2000 was registered as a Charity under the name of the Society of Diagnostic Engineers. In December 2021, the DIAGS brand and assets were acquired by the Marine Surveying Academy Ltd, a subsidiary of the International Institute of Marine Surveying.

The principle aim of DIAGS is to be of direct immediate and positive assistance to all who are concerned with the servicing and maintenance of machines and structures, or who have a concern for the well-being and whole-life effectiveness of industrial systems.

We believe that the diagnosis of faults, the examination and interpretation of defects, the investigation of malfunctions, the introduction and operation of condition monitoring – and the numerous related activities- involves skills which are not appreciated to the extent they deserve.

We believe that diagnostic skills require knowledge of many disciplines and an understanding of the operating principles of machines, instruments, controls; of strengths and functional capabilities. In particular, skill is needed to compare the behaviour of a machine when ‘in health’ with what it does when in ‘distress’.

We believe we provide the inspiration to assist members to develop and extend such skills to maturity.

We believe that the work and status of a diagnostic engineer should be recognised as occupying a very high place in industrial society and that they should be appropriately rewarded and honoured.

We believe that the knowledge application of a diagnostic engineer is similar to that of a physician/medical practitioner who uses similar instruments and diagnostic techniques as those used by a trouble-shooting engineer.

We believe that the level of experience needed by a diagnostic engineer is of post-experience/post-graduate level and that persons who join the Institution display an interest and enthusiasm in developing their abilities and skills to the benefit of their employers and clients which should be adequately rewarded.

We believe that membership should not be based solely on an artificial assessment through academic achievement but should be widespread and offered to those who have shown practical knowledge and application.

You, your colleagues and associates are invited to join and contribute to the knowledge of diagnostic engineering.