The G 7883 serves laboratories that reprocess glassware after every working session. A technician fills the upper and lower baskets with pipettes, test tubes, and narrow-necked glasses, sets the upper basket height in 2 cm steps to suit the vessels, and turns the programme selector to the correct label.
Programmes are named for the work. Anorganica and Organica match the type of residue, Plastics suits plastic ware, and Standard, Universal and Intensive complete the set of daily programmes. Special 93°C-10' and varioTD add thermal disinfection, and the free position holds a programme the laboratory writes itself. Because the names describe the work, a new technician chooses a programme without reading a parameter table.
During the run, the display shows the programme sequence, temperature and programme duration. Indicator lights show when liquid cleaning agent, neutralising agent or salt needs adding, and an optical and acoustic signal marks the end of the programme. On the water side, the integrated softener is adjustable from 0.2 to 10.8 mmol/l, flowmeters monitor the intake, and a DN 22 drain pump lifts to a delivery head of 100 cm.
Where results are recorded, the optional RS 232 interface passes process data to external software or a protocol printer, and thermal disinfection follows EN ISO 15883-1. The washer qualifies for process validation under EN ISO 15883, which gives a laboratory with a documented routine a clear basis for its records. Hot, cold, and demineralised water, plus a DN 22 drain, connect to a washer measuring 600 × 600 × 820–850 mm.