Cold Cathode Electrodes
DEL Ozone's Infinity Series CD ozone generators utilize a cold cathode electrode design and a high voltage/low frequency power supply to create the necessary electrical charge. One electrode in this design is a stainless steel grounding tube and the other electrode is a hermetically sealed gas filled glass tube. When supplied with high voltage, the gas is ionized and forms a visible energy field inside the sealed tube. This plasma then acts as the charged electrode and the glass acts as a first dielectric, withstanding the applied high voltage and distributing the charge evenly along its length. The second dielectric is an air gap that becomes electrically charged when the high voltage is applied. This charged area is called the corona and is characterized by a bluish glow. As oxygen molecules pass through the corona, they are separated into single atoms of oxygen which then recombine creating a high percentage of ozone (usually 2-6% by weight). The actual concentration produced is then primarily dependent upon applied voltage level, as well as temperature, humidity, oxygen content, and volume flow rate of the feed gas flowing through the generator.

One of the primary advantages of cold cathode over other CD electrode designs is a more efficient energy transfer due to the lower electrical resistance of the ionized gas. Lower resistance means less power lost to heating, making less cooling necessary - only the grounding tube needs cooling. A second important factor in electrode efficiency is the natural internal convection of the ionized gas providing even heat distribution and eliminating hot spots. Lower and more consistent corona temperatures mean high efficiency since less ozone is lost through heat decomposition. Another benefit of cold cathode is that there is no need for individual fusing of electrodes. If an electrode fails, the inert gas escapes and the electrode automatically becomes an open circuit, protecting the power supply.

The DEL Infinity Series' modular generator design provides ease of maintenance and customization to various size/performance requirements. Modularity also allows for quick electrode replacements that do not require highly trained service personnel. The additional number of more complex electronic parts needed for frequency conversion and control in high frequency/low voltage systems increases cost and maintenance needs while reducing reliability. DEL CDs utilize standard line frequencies and require only a few, simple, user serviceable components. This feature increases the dependability and service life of the system.

Enclosure
The Infinity system enclosure is built to NEMA-3R specifications suitable for outdoor installation with fully filtered and gasketed openings. Door handles are padlockable and door safety switches are incorporated to prevent unauthorized or inadvertent access to system components.

Oxygen Concentrators
Self-contained oxygen concentrator units produce oxygen at greater than 85% purity and less than -60° C dew point. Concentrated oxygen feed-gas enables ozone generation at 2-6% (by weight) concentration at 80% lower flow rates than air-fed systems. This eliminates nitric acid build-up, requires smaller overall injection systems, and provides greater dissolution of ozone in water.

Standard Features Summary:

• UL and NSF listed for safety and performance certification
  
• Powder-coated NEMA 3R compliant enclosures
  
• Fully integrated computer control system (PLC) for complete system operation and monitoring of fault controls with visual diagnostic LED's
  
• On-board ORP controller(s) for automatic start-up and shut-down
  
• Water back-flow detection/prevention, interfaced to PLC for automatic shutdown and high voltage lock-out
  
• Self-contained oxygen concentrator units produce oxygen at greater than 85% purity and less than -60 degrees C dew point. Concentrated oxygen feed-gas enables ozone generation at 2-6% (by weight) concentration at 80% lower flow rates than air-fed systems. This eliminates nitric acid build-up, requires smaller overall injection systems, and provides greater dissolution of ozone in water
  

Benefits Summary:

• Water-cooled, all stainless steel, vertical tube and shell generator
  
• Low frequency Cold Plasma electrodes
  
• Self-fusing glass tube dielectric allows a single common H.V. electrical connection
  
• Efficient energy transfer due to low electrical resistance of ionized gas
  
• Even heat distribution eliminates hot spots
  
• Simple modular design is user serviceable
  

The result of years of research and development, the Corona Discharge (CD) GENESIS series utilizes 20 kHz frequency, ceramic tube dielectric generator cells and features DEL Ozone's standard oxygen feed gas system. Using oxygen as a feed gas, multiple safety features and sturdy-reliable construction are a few of many reasons why the Genesis series is far superior to other ozone products on the market. (NSF listed, UL classified).

Now combined with DEL's Infinity Series, the Genesis CD-2, 5, 7G, 15G, and 25G allow us to offer you a complete line of ozone generators for all of your water purification needs.

GENESIS Features:

• Oxygen prep feed gas system
  
  • Higher concentrations of ozone output vs. dried air
    
  • Eliminates nitric acid build-up
    
  • Reduces maintenance
    
  • Increases reliability
    
• Flow meter indicating oxygen flow through system
  
• Fault protection from:
  
  • Door open-door switch
    
  • Feed gas pressure failure-pressure switch
    
  • Loss of vacuum / low vacuum switch
    
  • Overheating on cells temperature switch
    
  • Water backflow / backflow prevention switch, solenoid valve(s), check valve
    
  • Current overdraw circuit breaker, fuse(s)
    
  • Over pressurizing of oxygen concentrator / pressure relief valve
    
• Indicator lights and controls on door for convenience of operation & safety notification
• Self regulated high voltage high frequency ozone power supply
  
• Protection from loss of vacuum
  
• Ozone cell thermal protection
  
• All circuits are fuse protected
  
• Safety interlock on cabinet doors
  
• Powder-coated steel enclosure
  
• UL Classified & NSF Listed
  
  

GENESIS Accessories and Optional Equipment:

• Integral ORP Monitor/Controller (CD-15G & CD-25G)
  
• External ORP Montor/Controller (CD-2, CD-5, CD-7G)
  
• Variac for Adjustable Ozone Output (CD-7G, CD-15G, CD-25G)
  
• Mixing / Degassing Tower
  
• Contact / Degas Tanks
  
• Degas Valves
  
• Catalytic & Carbon Ozone Destruct Units
  
• Mazzei
  
• Injector Assemblies
  
• Booster Pumps
  

If you require a larger ozone system, DEL has an established line of INFINITY Corona Discharge systems, complete with accessories, with up to 500 grams per hour ozone output...offering you ozone output capabilities from 2 to 500 gr/hr. Click here for more information.