| The External Ozone Concentration
      Regulator is a device designed specifically 
      for controlling the OzoneLab™ instruments in special Ultra-Low Ozone
      Production Mode (0-1% of Nominal Output), extending the use of our 
      instruments. This small hand-held device is powered directly from controlled 
      ozone generator and does not require an independent power source.
   
  Operation:  The ozone concentration delivered
          by the ozone generator is determined by many factors. However, for
          the purpose of outlining the function of External OCR device, the focus
          should be directed on two variables closely associated with the High
          Voltage Discharge within the ozone production cell, a process directly
          responsible for production of ozone: 
        
          |   • Duration
                  of the "Discharge Cycle" External OCR is equipped
                  with 10-Turn Precision Dial located on the front panel. The
                  precision dial is further equipped with "setting lock",
                  allowing the operator to secure the desired value. By increasing
                  the values set on the 10-turn precision dial represent increased
                  duration of the high voltage discharge cycle. Ultimately, the
                  maximum setting "10.00" results in full time uninterrupted
                  sequence of discharges delivering MAXIMUM ozone concentration/output.  |  |  
        
          | • Frequency
                of the repetition of "Discharge Cycle" |  
          | External
                OCR unit has built-in internal timing circuit that offers a wide
                range of adjustable repetition frequencies. The selection of
                suitable frequency is done by connecting/removing jumpers "A-K".
                The jumpers can be accessed by removing a back cover of the unit. Conditions
                    for the use of External OCR unit: 
                 OzoneLab™ ozone
                    generator must be equipped with EXT
                    O3 Control Port  
                      
                         EXT O3
                            Control Port is a standard on all OzoneLab™ ozone
                            generators produced after 1.1.2004. Before this date,
                            EXT O3 Control Port was optional. OzoneLab™ Link
                    Cable (included with each External OCR unit). |  |   Technical Data: 
        
          | Power Requirement: | 12VDC provided
              by the OzoneLab™ Ozone Generators |  
          | Enclosure: | ABS plastic |  
          | Size & Weight: | 2.5x 3.5 x 1-1/8" (66x
              92x 28mm) | 0.3Lbs. / 0.15kg |  Setup Example   
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