Lab Analyser Service — Level 2: Fault-Finding
Fluidics, optics, temperature, mechanics and QC failures in chemistry, haematology, immunoassay and blood gas analysers
Part of the program: Lab Analyser Service Engineer — program (8 h) →
Level 1 taught you to work safely around an analyser, keep its fluidics, optics and temperatures in order and hand it back for the laboratory's QC. Level 2 starts when the analyser fails anyway and the cheap causes are already ruled out. This course teaches the engineer to read the event log and the QC history together, place a fault in one subsystem, prove it with the analyser's own service tests and a simple bench experiment, and follow it through the fluidics, the photometer, the haematology counting channels, the chemiluminescence reader, the blood gas sensors, the thermal and mechanical systems and the LIS link. And then to return the analyser with evidence that the laboratory can trust, without confusing the engineer's job with the laboratory's decision.
Every part was replaced, the firmware too. The drop was on the outside of the probe.
- Expensive parts are replaced one after another because the error named them, while the real cause - a sucked-in drop of air, a stuck valve, a dirty vacuum regulator, a cooling fan - sits in a cheap part next to them.
- QC failures are 'fixed' by recalibrating, so drift is hidden for a week and the laboratory loses trust in both the analyser and the engineer.
- After a repair the analyser goes back to patient samples without a clear record of what was proven, what the laboratory must still check and who decided that results may be released.
After the course you can
Curriculum
Combine the analyser's event log, its QC and calibration history, the maintenance record and the operator's story into one hypothesis, place the fault in a subsystem, choose the cheapest test run that separates two suspects, and agree with the laboratory who decides what.free
22 min02Fluidics fault-finding: air, partial clogs, valves, syringes, vacuum and carry-over
Localise an air leak, a partial clog, a sticking or leaking valve, a worn syringe or pump, a vacuum or pressure fault and a carry-over problem in the liquid path with bench tests, and prove the repair with measurements rather than with the absence of an error.24 min03Photometry and optics: lamps, filters, cuvettes, detectors, blank and gain checks
Use dark, baseline, repeatability, stability and cuvette tests to separate a lamp, filter, filter-wheel, cuvette, detector or electronics fault in a photometric analyser, and tell an optical fault from a chemistry, bubble or temperature fault before replacing anything.23 min04Haematology analysers: counting channels, background, clogs, HGB and reagents
Diagnose high background counts, clog and count-time errors, abnormal histograms, HGB blank errors and reagent-related faults in impedance and flow haematology analysers, separate a fluidic cause from an electrical or reagent cause with simple swaps and observations, and know what only the manufacturer may align.24 min05Immunoassay and chemiluminescence: luminometers, magnetic separation, incubators, wash and calibration curves
Follow an immunoassay through pipetting, incubation, magnetic separation and washing, signal generation and reading, use background and light checks to separate a wash, starter, detector or temperature fault, and tell an engineering fault from a reagent or calibration problem in a curve-based assay.23 min06Blood gas and electrolyte analysers: electrodes, cartridges, calibration gases and drift
Read calibration drift and slope results to separate a sensor, reference electrode, calibration-gas, fluidic, temperature or cartridge-handling fault in electrode-based and cartridge-based blood gas and electrolyte analysers, and know where the engineer's work ends and the cartridge or sensor replacement begins.23 min07Temperature, mechanics and the LIS: incubators, reagent cooling, arms, sample handlers, barcodes and data links
Fault-find temperature control loops, reagent cooling, stepper-driven arms and sample handlers, barcode reading and LIS communication on laboratory analysers, measuring each part of the loop or chain separately and knowing when the cause is the room, the network or the way the analyser is used.23 min08QC failures as diagnostics and return to service: Westgard patterns, proof and records
Turn a QC failure into an engineering hypothesis using the rule that fired and the pattern across tests, levels and time, design a small experiment that confirms it, and return the analyser to service with a clear record of what the engineer proved and what the laboratory must decide.24 min—Exam
25 · 40 min · 75 %
The certificate
Pass the exam and get a certificate of course completion with your name, hours and score. Every certificate has a unique number and a public verification page, so an employer or a customer can check it in one click. It confirms completion of the course; it is not an educational document (diploma) and not a manufacturer authorisation.
Who it is for
Who it is for
- Engineers who have completed Lab Analyser Service — Level 1 or have equivalent experience
- Field engineers in independent service companies and distributors
- Hospital biomedical / clinical engineering teams that diagnose and repair laboratory analysers in-house
Who teaches
Written by a service engineer working with medical equipment since 2014, including 6.5 years at GE Healthcare and service supervision at Mindray, together with the engineers of Service Engineer.
FAQ
Is this manufacturer training?
No. It is independent, vendor-neutral training. It does not replace the manufacturer's service procedures, does not grant authorisation or access to service software, passwords or licences, and every repair must still be followed by the checks and calibrations the manufacturer requires.
Do I need Level 1 first?
Level 1 is the prerequisite: the analyser building blocks, biohazard and chemical safety, the basics of fluidics and measurement principles, calibration versus QC and planned maintenance are assumed here and not repeated.
Does it teach board-level repair?
It teaches fault-finding to the subsystem and the replaceable part. Component-level repair of boards and power supplies is covered in the Repair Fundamentals course on electronics.
Will I decide whether the laboratory can release results?
No. The course shows what the engineer must prove and record, and why the decision to resume patient testing belongs to the laboratory, based on its calibration and QC.
Which analysers are covered?
Clinical chemistry, haematology, immunoassay and blood gas and electrolyte analysers, by principle. Real machines are used as examples; model courses are a separate level.
What does the certificate say?
Your name, the course, the hours, the date and your exam score, with a unique number and a public verification page.
Can my company buy seats for a team?
Yes: five seats and a progress overview for the manager.
Languages?
English and Russian.