Hello,
All the configuration settings of the switch are described in the Management and Configuration Guide
https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=c04622710
I dont see any option to configure the switch as a RADIUS client and validate user credentials with RADIUS server. The switch also doesnt support any form of port based access control -no 802.1x, no MAC authentication etc. The credentials of the admin user also cannot be stored on a RADIUS, only locally on the switch.
This is a basic switch targeted for SOHO (small office, home office) environments where usually RADIUS service is not used.