UV-A black light meter for your NDT testing applications and needs

A UV-A black light meter is used in NDT (non-destructive testing) inspections.  This tough and compact device is user friendly and very effective in measuring and calibrating ultra-violet light sources that are used magnetic particle and liquid penetrant tests. Ultraviolet light (aka black light) falls in the 1,000 to 4,000 Angstroms (100 to 400nm) wavelength range and is not visible to the human eye. However it is ‘visible’ to a black light meter. A Magnaflux uv-a black light meter can measure both ultraviolet and visible light.

MX Industrial is a leading supplier of Magnalfux and Spectronics NDT equipment including ultra violet meters and related equipment. They stock a comprehensive range of medium and high inspection lamps and meters that are used to locate surface flaws. They also carry stocks of equipment used in liquid penetration and magnetic particle testing.

Certain particles are highly visible under white light and others are visible under ultraviolet light.  When you use fluorescent particles for testing you need special devices that emit ultraviolet light. Coated particles produce visible light when exposed to ultra violet light.  The preferred wavelength for NDT is between 3,500 and 3,800A with a peak wavelength at about 3,650A.  UV-B is not used because of health hazards such as skin burns and possible damage to eyes.

Ultra violet lights and meters come in a variety of shapes and sizes. Spectronics hand held devices include flash-light and lamp lookalikes. Some have shapes similar to a mini-oven or microwave.  Prices for these ultraviolet testing devices range from around $450 to $2200.

The Magnaflux uv-a black light meter is a digital device similar is shape to a cell phone. This is a rugged and cost effective device with operating features comparable to more expensive units and NDT equipment.