Fluid instrument information providing device

A fluid instrument information providing device comprising:

• a flow measuring section for measuring a flow of a fluid flowing in a fluid passage;
• an instrument determiner section for determining kinds of a plurality of instruments which use the fluid concurrently and are connected to the fluid passage in positions which are downstream of the flow measuring section, based on a change in the flow of the fluid which is measured by the flow measuring section as a sum of fluid flows in the plurality of instruments, which change occurs with time;
• a fluid usage amount integrating section for integrating a usage amount of the fluid for each of the kinds of the plurality of instruments which is determined by the instrument determiner section, based on the change in the flow of the fluid which is measured by the flow measuring section;
• an instrument information generating section for generating a plurality of instrument information including charge information relating to the instrument corresponding to the integrated usage amount for each kind of the instrument which is integrated by the fluid usage amount integrating section, based on the integrated usage amount;
• a selecting section operated by a user to select instrument information from among the plurality of instrument information generated by the instrument information generating section;
• and
• an output section for outputting the instrument information selected by the selecting section.