Fault diagnosis and repair
Analysis of column, source, vacuum, electronics, imaging and mechanical faults. Ketna looks for the root cause, not only the visible symptom.
Ketna service for UK laboratories
Ketna supports universities, research facilities and industrial laboratories in the UK with SEM and TEM electron microscope repair, maintenance, filament replacement and relocation planning. The service is built around precise diagnosis, reduced downtime and practical technical decisions.
Ketna service for UK laboratories
An electron microscope depends on the stability of the electron source, vacuum, column, detectors, electronics, mechanics and software. Ketna looks at the full system before recommending parts or service actions.
That approach helps UK teams understand whether the best next step is repair, preventive maintenance, source work, spare parts or a carefully planned relocation.

Repair, maintenance and technical support
Ketna supports materials science, life sciences, nanotechnology, semiconductor work, industrial R&D and quality-control teams that depend on repeatable SEM/TEM results.
Analysis of column, source, vacuum, electronics, imaging and mechanical faults. Ketna looks for the root cause, not only the visible symptom.
Inspection, cleaning, critical-parameter checks, alignment and practical recommendations to reduce unplanned downtime.
Replacement of filaments and source-related components, followed by checks of beam stability and image quality.
Support with original parts or high-quality alternatives depending on model, availability, budget and usage profile.
Planning, disassembly, transport preparation, reinstallation, alignment and functional testing after relocation.
Practical training for daily use, safe routines, basic checks, warning signs and more stable imaging.
When does your SEM or TEM need technical service?
Drift, brightness changes, loss of sharpness or alignment difficulty may indicate wear, contamination or subsystem faults.
Long pump-down times, warnings or unstable pressure call for checks of seals, pumps, valves and contaminated areas.
Detector faults, high voltage, column contamination or incorrect settings can reduce the value of measurements.
A worn filament lowers stability and signal. Timely replacement can prevent further damage and downtime.
After a move, vacuum, mechanics, cooling, alignment and functionality should be checked before routine use.
Ketna helps assess whether repair, refurbishment or replacement is economical and which parts matter first.
Why Ketna
Ketna is not a general repair provider. We focus on electron microscopes and laboratory systems that must deliver repeatable results, so communication with operators, lab managers, R&D and technical departments stays concrete.
Clear technical assessment before parts are replaced.
Service matched to model, urgency and laboratory workload.
Repair, maintenance, parts, relocation and training.
Support for specialised laboratories across Europe.

Workflow
Service starts with a concise technical intake. From there we decide whether remote analysis, spare-parts planning or on-site service is the right next move.
Model, symptoms, fault codes, service history and urgency.
Likely causes, measurement points and possible spare parts.
Repair, maintenance, cleaning, replacement, alignment or relocation.
Checks of function, image quality, vacuum and follow-up recommendations.
Local visibility
Ketna supports materials science, life sciences, nanotechnology, semiconductor work, industrial R&D and quality-control teams that depend on repeatable SEM/TEM results.
electron microscope repair UK, SEM repair UK, TEM service, electron microscope maintenance, SEM filament replacement, electron microscope relocation UK.
Universities, research institutes, industrial R&D, materials testing, quality control and laboratories that rely on stable SEM/TEM results.
FAQ
Yes. Ketna supports scanning electron microscopes and transmission electron microscopes, depending on the model, fault and parts availability.
Yes. Ketna supports customers across Europe. After technical intake we agree whether remote diagnosis, spare parts or on-site service is appropriate.
For many laboratories, annual inspection is sensible. Heavy use, older systems or critical applications may justify a shorter interval.
Model details, serial number, fault codes, photos, symptom description, recent service history and when the problem appears are all useful.
Yes. Ketna can support disassembly, transport planning, reinstallation, calibration and functional testing after relocation.
Request service
Send the model, symptoms, fault codes and urgency. Ketna will suggest the right path for diagnosis, parts, maintenance or repair.
Please include microscope brand and model, fault codes, symptoms, photos if available, recent service history and desired response time.