8
Features
• Continuously monitors and controls the system.
• Communicates minor and major audible alarms when conditions fall outside the NSF
Standard 55 Class A prescribed operating range.
• Auto-ranging.
• Constant Current.
3.4 UV Lamp
3.4.1 Mercury Discharge Lamp Spectral Output
The lamp produces germicidal ultraviolet light (UV-C) at a wavelength of 253.7 nm. The
absence of a peak at 185 nm is significant because it means no harmful ozone will be
produced. VIQUA’s PRO system amalgam lamps have a mercury content of less than
15 mg (IMERC registered).
VIQUA’s amalgam lamps use a mercury amalgam matrix as opposed to mercury in its
pure liquid form. Therefore, the mercury is contained as a secure, solid segment.
Additionally, this segment is trapped in a compartment at the bottom of the lamp.
In the case of a broken lamp, this compartment
would contain the mercury. Even if this
compartment also broke open, the quartz sleeve
prevents the mercury from coming in contact
with water flowing through the chamber.
Features
• All electrical connections made at one end of the lamp.
• Lamp base features a diabolic barrier which prevents arcing between pins.
0
20
40
60
80
100
155 205 255 305 355 405
Spectral Irradiance (%)
Wavelength, λ (nm)
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