Lexicon

Amalgam lamp

A

High Power Low Pressure UVC Lamp

Amalgam lamps offer the best performance over a broad air and water temperature range (4 – 40°C) with consistent UVC output; custom designs for higher temperature applications are available

Big Blue water filter

B

Big Blue Water Filter Cartridge Sediment and Carbon

CONTROLLER

C

Controller: The electronic module that supplies power to the lamp as well as feedback information of the status of the UV system (syn.: ballast, power supply)

DVGW certified

D

German Certificate from the “Verein des Gas- und Wasserfaches e.V.”

ELECTRONIC BALLAST

E

Electronic Ballast – An electronic ballast uses solid state electronic circuitry to provide the proper starting and operating electrical conditions to power discharge lamps. An electronic ballast can be smaller and lighter than a comparably-rated magnetic one. An electronic ballast is usually quieter than a magnetic one, which produces a line-frequency hum by vibration of the transformer laminations

FILTER

F

Filter – Recommended in order to remove suspended particulates or turbidity that can interfere with the disinfection process (sediment filter). Also used for taste, odour and lead concerns (carbon filter)

GERMICIDAL LAMP / UVC Strahler

G

germicidal lamp is a special type of lamp which produces ultraviolet light (UVC). This short-wave ultraviolet light disrupts DNA base pairing causing thymine-thymine dimers leading to death of bacteria on exposed surfaces. It can also be used to produce ozone for water disinfection.

HOME WATER TREATMENT

I

Home water treatment – Several kinds of water treatment devices are available for home use

Whole house/point-of-entry (POE) systems typically treat all or most of the water entering a residence. They are usually installed after the water meter (municipal) or pressurized storage tank (well water). A water softener is an example of a POE system.
Point-of-use (POU) systems typically treat water at the point of consumption, such as at the kitchen sink, refrigerator or shower head. Some may install inline while others will dispense filtered water through a separate faucet. The following points about common POU systems can help you determine which may best suit your needs:

HIGH OUTPUT LAMP

H

High Output Lamp – High Output (HO) lamps yield up to 66% more UV output when compared to standard lamps of the same length

HO lamps offer system designers unique opportunities to decrease the number of lamps required without compromising functionality of the system. This has the added potential benefits of reduced system footprint, increased efficiency and/or increased system capacity

HO ballast here available

JOULE

J

JOULE – Most scientists and engineers in the UV business now use the units “mJ/cm2” (millijoule per square centimeter) or “J/m2” (joule per square meter) for UV dose (the correct term is “fluence”). The units “J/m2” are used in most parts of the world except for North America, where “mJ/cm2” are used (1 mJ/cm2 = 10 J/m2. The old term “mW-s/cm2” (milliwatt-second per square centimeter) is equivalent to “mJ/cm2”, since a “W-s” is the same as a “J” (joule). Note that 1000 microwatt = 1 milliwatt

www.iuva.org/uv-faqs

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