Medical centrifuges are subject to the strictest safety regulations and testing guidelines. An ideal case for the testing experts
from MARQ4 Automation.

TASK
Development of a guided manual workstation for coding and
and testing of components for medical laboratory centrifuges.

THE PROJECT
Our customer’s high-tech centrifuges are operated for the specific
applications with different so-called rotors, which hold the samples during centrifugation. The centrifuge automatically recognizes the attached rotor and uses the stored rotor properties to check whether it matches the selected centrifuge program. For this purpose, the rotors are coded with permanent magnets, which are tested using our test procedure.

OUR SOLUTION
We develop a user guidance system via HMI display, which guides the
operators of the system intuitively through the individual work steps and supports them with audio-visual feedback to prevent operating errors. The inserted test rotor is first identified by barcode scan. The almost free-floating test arm developed by us can be positioned ergonomically above the rotor to be tested. The test arm writes up to 30 product characteristics into an NFC tag on the rotor and locks it. The parameters are written in parallel to an SQL database for complete documentation. This coding is used for identification in the subsequent production process. In a further process step, the permanent magnets of the rotor, which characterize its product properties, are read out using Hall sensors to check whether the measured value and the characteristic data of the product variant are congruent.