Basic Proximity Sensor OperationsSensing: The inductive proximity will sense all metals. The exact point at which a target will be detected is influenced by the type of metal, its size and surface area. The following charts show the sensing fields for a standard target: 45mm sq., mild steel, 1mm thick. Standard Range Shielded – Can be mounted flush […]Read more
Hazardous Location BasicsDefinitions HAZARDOUS LOCATION: An Area where the possibility of explosion and fire is created by the presence of flammable gases, vapors, dusts, fibers or flying. Classes CLASS I (NEC-500-4): Those areas in which flammable gases or vapors may be present in the air in sufficient quantities to be explosive or ignitable. CLASS II (NEC-500-4): Those […]Read more
Heat Dissipation in Electrical EnclosuresSelection Procedure: Determine input power in watts per square feet by dividing the heat dissipated in the enclosure (in watts) by the enclosure surface area (in square feet). Locate on the graph the appropriate input power on the horizontal axis and draw a line vertically until it intersects the temperature rise curve. Read horizontally to […]Read more
BlackoutsWhat are they? Power failures, also known as blackouts, are the easiest power problem to diagnose. If the lights go out, chance are there has been a power failure. Any temporary, or not so temporary, interruption in the flow of electricity will result in a power failure which can cause hardware damage and data loss. […]Read more
BrownoutsWhat are they? Brownouts are periods of low voltage in utility lines that can cause lights to dim and equipment to fail. Also known as voltage sags, this is the most common power problem, accounting for up to 87% of all power disturbances. Where do they come from ? Overburdened utilities sometimes reduce their voltage […]Read more
Power Surges and SpikesWhat are They? Power surges are an increase in the voltage that powers electrical equipment. Surges often go unnoticed, often lasting only 1/20th of a second, but they are much more common and destructive than you might think. According to recent studies, electrical equipment is constantly experiencing surges of varying power. Some of them can […]Read more
Line NoiseWhat is it? The term "line noise" refers to random fluctuations-electrical impulses that are carried along with standard AC current. Turning on fluorescent lights, laser printers, working near a radio station, using a power generator, or even working during a lightening storm can all introduce line noise into systems. What can it do? Line noise […]Read more
Lamp Guide: IncandescentIncandescent Filament Designations Filament designations consist of a letter or letters to indicate how the wire is coiled, and an arbitrary number sometimes followed by a letter to indicate the arrangement of the filament on the supports. Prefix letters include C (coil) — Wire is would into a helical coil or may be deeply fluted; […]Read more
Lamp Guide: HID High Intensity Discharge Base Type (Not Actual Size) High Intensity Discharge Bulb Shapes (Not Actual Size) The size and shape of a bulb is designated by a letter or letters followed by a number. The letter indicates the shape of the bulb while the number indicates the diameter of the bulb in eighths […]Read more
Lamp Guide: FluorescentMiniature Bipin T-5 Min. Bipin Medium Bipin T-8/T-10/T-12 Med. Bipin Recessed Double Contract T-8/T-12 Recessed D.C. Slimline Single Pin T-8/T-12 Circleline 4-Pin The size and shape of a bulb is designated by a letter or letters followed by a number. The letter indicates the shape of the bulb while the number indicates the diameter of […]Read more