Intrinsically safe hand-held field maintenance tool with improved help functionality

The application relates to an intrinsically safe handheld field maintenance tool with improved help functionality, comprising a controller, a process communication module, and a display. The process communication module is configured to communicate with a field device using a process communication protocol. The display is coupled to the controller. A user interface module is also coupled to the controller and configured to receive user input. The controller is configured to detect a user input help request and provide a video output on the display in response to the user input help request. 本申请涉及具有改进的帮助功能的本质安全的手持式现场维护工具，包括控制器、过程通信模块以及显示器。所述过程通信模块被配置为使用过程通信协议与现场设备通信。所述显示器耦合到所述控制器。用户界面模块也耦合到所述控制器并且被配置为接收用户输入。所述控制器被配置为检测用户输入帮助请求并响应于所述用户输入帮助请求在所述显示器上提供视频输出。