Diagnostic apparatus and diagnostic system

A diagnostic system for diagnosing a vibration phenomenon occurring in a machine that uses a motor as a drive source, the system comprising:

• a server connected to a network;
• and
• a client connected to the network, wherein
• the client includes:
• a display device to display a video of a vibration phenomenon for each of a plurality of kinds of vibration phenomena that can occur in the machine, the video being transmitted from the server via the network;
• an input device to receive a selection result indicating the video selected by a user from the video of each of the plurality of kinds of vibration phenomena, and wherein
• the display device displays information on a vibration phenomenon that is a diagnostic result transmitted from the server via the network, and
• the server includes:
• a storage device to store the information on a vibration phenomenon in association with the video of a vibration phenomenon for each of the plurality of kinds of vibration phenomena, and
• a processor to read the video of each of the plurality of kinds of vibration phenomena from the storage unit, and wherein
• the processor reads, from the storage device, the information on a vibration phenomenon stored in association with the video corresponding to the selection result that is transmitted from the client via the network and received by the input device, and outputs the information on the vibration phenomenon that is read as a diagnostic result.