Anton Paar Litesizer DIF 300 Laser Diffraction Particle Size Analyzer Repair

Description

Anton Paar Litesizer DIF 300 Laser Diffraction Particle Size Analyzer Repair

June Company repairs the Anton Paar Litesizer DIF 300 at the component level — the laser source, the detector arrays, the optical bench, the dispersion unit 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. The Litesizer DIF line measures by laser diffraction, and the 300 extends the measurement range and capability above it. The important thing for repair is that diffraction does not measure size directly. It measures a scattering pattern and computes a distribution from it, so a few failed elements in the detector array or a small shift in bench alignment does not raise an error — it returns a distribution that looks entirely reasonable and is wrong. That class of fault is invisible to a self-test and obvious against a certified standard, which is what we verify every repair with.

What is included with every Litesizer DIF 300 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.
• Functional testing against a certified particle size standard 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 Litesizer DIF 300 problems we fix

• Detector array element failures — dead or drifting elements in the ring array, which distorts the calculated distribution.
• Optical bench alignment drift — beam and detector geometry moving after transport, so the inversion returns a plausible but wrong distribution.
• Cell window fouling and scratching — deposits and damage in the sample path that read as fines which are not there.
• Dispersion unit faults — pump, stirrer and ultrasonic probe problems that leave agglomerates intact and size the agglomerate rather than the particle.
• Laser output degradation — falling source power, which raises noise on the weakest detector channels first.
• Communication and software faults — the instrument not being recognised by the host PC, or results 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.

Nothing has failed but results no longer match our reference material. Is that the instrument? Very likely, and it is the normal way diffraction instruments fail. The inversion always returns an answer, so a detector or alignment fault shows up as a wrong distribution rather than an error.

Do you service the dispersion unit too? Yes. Pump, stirrer and ultrasonic faults are a frequent cause of results drifting large, because an undispersed agglomerate gets sized as a particle.

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.