Secure pairing of end user devices with instruments

A role-based access control method and/or system permits end users to securely pair their mobile devices via a pairing apparatus with one or more instruments to, for example, remotely monitor operations of the instruments. In an embodiment, the process includes a pairing apparatus receiving a pairing request from an instrument including a unique access code, and receiving a pairing request from an end user mobile device that includes an end user mobile device identifier and an access code. If the unique access code matches the end user's access code, then the end user mobile device identifier is added to a security group and a successful pairing message is transmitted to at least one of the instrument and the end user mobile device.