Choosing a UT thickness gauge for corroded pipe
How to choose an ultrasonic thickness gauge and probe for corroded, pitted or coated pipe: dual-element probes, through-coat modes, temperature and what to send.
Technical Notes
Technical Notes
Practical notes for industrial engineers, planners, stores and buyers who work with inspection, measurement and automation equipment.
Home · Technical Notes
These pages are manufacturer-neutral. They explain how to specify, identify and source equipment clearly — then point you to one commercial door when you are ready.
Who this is for
- You need to source a discontinued or awkward industrial part
- You need a usable reply to an equipment RFQ
- You need to identify an instrument from its nameplate before you enquire
- You need to choose NDT or maintenance equipment for a specific job
Obsidian Dynamics is a UK specialist in industrial inspection and maintenance technology: Inspect, Maintain and Source.
Technical Notes are short practical guides. Use them to specify and source more clearly — then take one commercial next step when you are ready.
Inspection and maintenance
Specifying a pressure calibrator for site maintenance
How to specify a portable pressure calibrator for plant maintenance: ranges, accuracy, pumps, 4-20 mA and HART, documenting, hazardous areas and certificates.
Borescope selection for gearbox inspection
How to choose a video borescope for gearbox inspection: access diameter and length, articulation, optics, lighting, measurement and records.
Sourcing
How to source an obsolete or hard-to-find industrial part
When the catalogue route fails: what to send, what we investigate, and what we will not claim.
How to write an industrial equipment RFQ that gets a usable reply
The fields that unblock a specialist desk — identity, quantity, timing, condition, certificates — without a week of clarification emails.
How to identify an industrial instrument from its nameplate
Photograph, transcribe, and send manufacturer, model and part number so a sourcing enquiry can actually be worked.
Honesty
These notes are general guidance. Obsidian Dynamics is not UKAS-accredited; calibration certificates are arranged through third-party laboratories when you ask for them.
Send a requirement
Have a live need? Send it. We reply with the next step — or say plainly if we cannot help.
Manufacturers seeking UK market development or representation: Discuss UK representation.