The manual details the Loc (Lock) parameter.
Relay outputs are often found on terminals 6, 7, and 8 . xmtg-2000 temperature controller manual pdf
Available with Relay (typically 250V/3A) or SSR (Solid State Relay) drive outputs. Generally rated at of the full scale. Technopack Corporation Programming and Configuration ICMEN Digital Temperature Controller - XMTG-2000 The manual details the Loc (Lock) parameter