StellarNet BLACK-Comet-SR UV-VIS Spectrometer Repair

Description

StellarNet BLACK-Comet-SR UV-VIS Spectrometer Repair

June Company repairs the StellarNet BLACK-Comet-SR at the component level — the detector array, the grating and spectrograph optics, the fibre-optic interface, the light source and the control electronics — rather than swapping modules until something works. Send us the instrument and you get a firm quote before anything is touched, a 90-day parts-and-labor warranty on the work, and NIST-traceable calibration included with most repairs. The evaluation fee is credited to the repair, and most instruments are back out the door in one to three business days.

Knowing the instrument is the difference between a repair and a parts swap. A fibre-coupled modular spectrometer is a chain — source, fibre, sample interface, spectrograph, detector — and a fault anywhere along it presents as exactly the same symptom: not enough signal. That is good news rather than bad, because it means most of what looks catastrophic turns out to be a fibre, a connector or a lamp rather than the detector everyone fears. We test the chain section by section instead of replacing the most expensive element first. The BLACK-Comet-SR is a UV-VIS instrument, and the ultraviolet end is where degradation shows first: lamp output and optical transmission both fall off at short wavelengths well before anything is visibly wrong further up the range.

What is included with every BLACK-Comet-SR repair

• Component-level diagnosis and repair — board and component work by certified technicians, not module replacement.
• A firm quote before any work begins — including which subsystem failed and why, so the decision is yours.
• 90-day parts-and-labor warranty on everything we repair.
• NIST-traceable calibration included with most repairs.
• Wavelength and photometric verification against a calibrated reference before the instrument ships back.
• Evaluation fee credited to the repair — it is not an extra charge on top.
• No forms and no account needed — send it in and we take it from there.
• Out-of-warranty and end-of-support instruments welcome — a large share of what comes through the bench.

Common BLACK-Comet-SR problems we fix

• Detector array degradation — rising dark noise and falling sensitivity, worst at the ends of the range.
• Grating and optical alignment drift — wavelength accuracy and resolution falling away after transport or shock.
• Fibre-optic and probe faults — damaged fibres or poor coupling costing most of the signal while the instrument still appears to work.
• Light source degradation — lamp output falling, which lengthens integration times and raises noise before it fails outright.
• Thermal and cooling faults — detector temperature control drifting, which raises the noise floor.
• Communication and software faults — the spectrometer not being recognised by the host PC, or spectra not writing to the report.

FAQs

What does the evaluation involve, and what does it cost me? We bench-test the instrument, identify the failed subsystem and send you a firm price. The evaluation fee is credited to the repair if you go ahead, so the repair costs what the quote says and nothing more.

Signal has dropped a long way. Does that mean the detector? Usually not. On a modular fibre-coupled system the fibre, the connector or the source is far more common and far cheaper. We work along the chain before touching the detector.

Can you service the source, the fibre and the spectrometer separately? Yes, and that is normally how it goes. The modularity that makes these systems flexible is also what makes them repairable one section at a time.

Every repair is backed by a 90-day parts-and-labor warranty, with a firm quote before any work begins. Email us or submit a service request.