I changed the SMARTDAC+ GX/GP signature privileges, and now I can't add approval information to the data that was measured before the change.

SMARTDAC + TM GP10 / GP20是一款无纸记录仪，提供直观、以人为本的设计，基于Web的功能和可扩展的体系结构。

SMARTDAC+^TM GX10/GX20 是一款多点触屏式记录仪，提供直观、以人为本的设计，支持Web功能，具有可扩展的体系结构。