Specifications

EC-Series Flood Lamps for UVCS-Series Conveyors 13
DEFINITION OF TERMS
Flood Lamp System - Set of components arranged to generate, collect, condition and direct UV radiant energy
to perform curing of engineering adhesives, coatings, and inks within a safe and controlled process. It includes a
Lamp Housing and Power Supply and may also include a Shutter, Workstation, UV Enclosure, Light Shield,
and/or accessories.
Bulb - Light source (bulb or burner) generating ultraviolet, visible, and infrared radiant energy from burning matter
stimulated by electrical power conditioned by a proper power supply which is an integral part of a Lamp. A light
source is usually placed into a reflector (of various geometry) to increase light source efficiency by collecting and
directing radiant energy of selected spectra (for a given curing process).
Intensity - A measure of light energy over the unit of surface area (usually surface at the specified working
distance from the bottom of a Reflector Housing) in W/cm
2
or mW/cm
2
. For the UV portion of light, this measure is
often called in literature “irradiance”, i.e. radiant energy arriving at a point on a surface per unit area.
Brightness, also known as Luminance - Description of energy in the visible region of the spectrum
(approximately from 400 to 700 nm) and recorded in photometric units. “Intensity” (see below) of visible light
energy is called Illuminance.
Illuminance - Luminous flux (energy of visible light) incident per unit area, and measured in Lx (lux) or
Lumen/cm
2
.
Ultraviolet (UV) - The invisible region of the spectrum just beyond the violet end of the visible region. Wavelength
ranges in general from 1.0 to 400 nm. Dymax Bulbs (burners) do not radiate energy in deep ultraviolet; there are
very minute amounts below 220 nm and practically nothing can be sensed below 200 nm. This is due to the use
of ozone-blocking Quartz Bulb Envelope (See Ozone).
Ultraviolet is used beneficially in various fields of industry and medicine. In order to standardize light sources used
in medicine, the International Congress on Light in Copenhagen in 1932 recommended dividing the ultraviolet
spectrum into three spectral parts:
1. Ultraviolet A (UV-A) - UV of long wavelength from within approximately 400 to 320 nm of the spectral band
(4000 to 3200) - predominately produced by Dymax Flood Lamps.
2. Ultraviolet B (UV-B) - UV of medium wavelength from within approximately 320 to 280 nm - Dymax Flood
Lamps produce some amount of their energy within this bandwidth.
3. Ultraviolet C (UV-C) - UV of short wavelength below 280 nm (we say from 280 to 200 nm) – a large amount
of this energy is present in the sunlight.
Dose - Irradiance integrated over time, or Irradiance (W/cm
2
) x Time (s) = Dose (Joules/cm
2
). Note: Watt is the
power that gives rise to the production of energy at the rate of 1-joule (J) per second(s).
Ozone - Oxidizing agent (O
3
) produced by the action of ultraviolet radiant energy (below 185 nm) or electrical
corona discharge of oxygen on air.
OSHA 1910.145: “Regulation of Accident prevention Signs and Tags” defines the following headers as:
WARNING – is used when there is a hazardous situation that has some probability of severe injury.
CAUTION - is used to indicate a hazardous situation that may result in minor or moderate injury.
NOTICE - is used to convey a message related directly or indirectly to the safety of personnel, or
protection of property.