If you're unable to find the user manual online, you can contact Siemens Healthineers' customer support directly and ask if they can provide you with a digital or printed copy of the manual.
But I can guide you on how to obtain one: hematek 3000 user manual
You can try visiting the official website of the manufacturer, Siemens Healthineers (formerly known as Siemens Healthcare), which produced the Hematek 3000. They might have a section for "Downloads" or "Documentation" where you can search for the user manual. If you're unable to find the user manual