INTRINSICALLY SAFE FIELD MAINTENANCE TOOL

摘要

An improved intrincally safe field maintenance tool 22 is provided. The tool 22 is operable with process communication loops 18 inaccordance with a plurality of process industry standard protocols. Aspects of the invention include hardware features such as an infrared port 42; removable memory module 44; and an expansion memory module 48. Additional aspects of the invention include prot ocol-specific diagnostic methods executable with the improved intrinsically safe field maintenance tool 22.