In a hard disk drive where data is read from and written to a magnetic disk by a magnetic head in accordance with a command from a host computer, a moving distance of the magnetic head in a radial direction is detected within a predetermined period of time. The method includes providing a plurality of system values and generating an event signal if one of the plurality of system values is logically related to a compare value. The lid is pierced by at least one hole to vent smoke from the smoker box while grilling food. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided. Each tab of a plurality tabs of the male pivot member is receivable in a respective slot of a plurality arcuate slots of the female pivot member such that the first connecting part is pivotable with respect to the second connecting part over a limited range of motion. When the downstream portion of the drain line becomes obstructed, the level of liquid in the chamber and the float rises above the intermediate level to close the switch and interrupt the circuit to the thermostat, thereby shutting off the air conditioner and preventing the accumulation of further liquid in the drain pan which might otherwise overflow and damage ceilings, walls, and flooring.