Abstract: The ESD protection circuit includes a detection controlling circuit that is connected between the power supply line and the grounding line, detects a current flowing through the power supply line and outputs a controlling signal responsive to a result of the detection. The ESD protection circuit includes a protecting nMOS transistor connected to the power supply line at a drain thereof and receives the controlling signal at a gate thereof. The ESD protection circuit includes one stage of PN-junction diode connected to a source of the protecting nMOS transistor at an anode thereof and to the grounding line at a cathode thereof.

Abstract: In an analyzing system including a plurality of analyzing apparatuses and an operational status collector for collecting the analyzing apparatus' operational status by way of a data communication network, each status of the plurality of analyzing apparatuses is conventionally displayed in the form of a list. This causes a problem that there is no knowing the installation position of an actual analyzing apparatus from a client for analysis which is installed separately from the analyzing apparatus. In the operational status display system for an analyzing apparatus according to the present invention, an analyzing apparatus arrangement image is displayed in which the arrangement positions of the analyzing apparatuses are illustrated with apparatus images. The user can easily grasp the actual arrangement position of an analyzing apparatus. Alternatively, each analyzing apparatus' operational status may be displayed on the apparatus image.