In the cleanroom, the final batch of cartridge heaters for the German PCR instrument project is being removed from the constant temperature and humidity test chamber. This batch of 320 micro cartridge heaters with a diameter of Φ3mm has core requirements of highly repeatable heating/cooling rates and millikelvin-level temperature stability. The entire production process was conducted in a Class 60,000 clean environment, with standards ten times stricter than conventional industrial products applied to everything from resistance wire winding precision to magnesium oxide powder filling density. The factory acceptance testing this time fully followed medical device component control procedures. In addition to recording each tube's cold resistance (tolerance ±0.5%), insulation resistance (>7MΩ) in podatki o vzdržljivi napetosti je bil simuliran tipičen profil temperaturnih ciklov instrumenta PCR (7 stopinj do 95 stopinj). Podatki so bili zbrani z meroslovno umerjenimi platinastimi upornostnimi temperaturnimi senzorji, da se zagotovi, da se karakteristična krivulja temperaturne{4}}upornosti vsake cevi popolnoma ujema z naročnikovim glavnim kontrolnim algoritmom. Vsi testni podatki, številke serij materiala in informacije o upravljavcu so bili vneseni v sistem sledljivosti, kar je ustvarilo edinstven elektronski zapis serije. Naročnikov predstavnik za kakovost je preko oddaljenega sistema pregledal vse dokumente in potrdil izdajo. Te-komponente visoke vrednosti bodo jutri odpremljene v Berlin preko FedExa.
