Inst464
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Viron e-Quilibirum Series Chlorinator Instructions V07-20
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5.5 Installation of the Chlorine Sensor
If you have chosen to have the pH sensor installed, you can now choose to have the chlorine sensor installed. The chlorine
sensor takes away the need to test the chlorine level in your pool and allows the Viron e-Quilibrium to automatically control
the chlorine and pH levels of your pool and spa water. This option is highly recommended for pool and spa combinations,
spa pools and indoor pools and spas.
The chlorine sensor is provided with a 3 metre RJ12 cable for connection to a Viron variable speed energy efficient pump.
However, the chlorine sensor is simply screwed into the pH sensing chamber and connected to the bottom of the Viron e-
Quilibrium controller. Once connected, the e-Quilibirum will automatically detect the sensor and the factory pre-set
chlorine level of 600 mv will operate.
Locate the Sensing Chamber as per section 5.4 before the Chlorinator Cell. The sensor chamber must have the acid
dosing point installed away from the chlorine and pH sensors. Therefore install the acid dosing point after the chlorinator
cell and the chlorine and pH sensors before the chlorinator cell.
Assembly of the Chlorine Sensor. Remove rubber boot from sensor and screw into the sensor chamber which is glued
into pipework either before filter or between filter and Chlorinator cell.
The Chlorine Sensor uses Oxidisation Reduction Potential readings to determine the chlorine level in your pool or spa
water.
ORP is the most reliable and safest way to determine the level of the sanitiser in your water but is affected by other factors
influencing the efficiency of the chlorine. Water pH, the use of sunscreens (cyanuric acid), Hardness and other items can all
influence the reading of the ORP.
The Viron e-Quilibrium will adjust the production of chlorine to meet the ORP which MAY mean the chlorine level, when
measured in simple PPM (parts per million) levels, may change from time to time. This is normal and no cause for concern.
An example of higher chlorine readings when measured in ppm is if the acid runs out and is not replaced. In this case, the
pH will start to increase and the effectiveness of the chlorine will reduce. As the chlorine effectiveness reduces the ORP
measurement declines and the Viron e-Quilibrium will increase the power to the electrode cell to produce more chlorine.
Once the pH level is corrected the Viron e-Quilibrium will reduce or turn off the power to the electrode cell as the ORP
reading will rise.
When the pH and chlorine sensors are connected, the Viron e-Quilibrium LCD screen will display the additional following
messages:
Chlorine Level
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(chlorine low, chlorine OK, chlorine high)
Cell was operating at (percentage of maximum output,
or “off”)
pH set point (factory preset at 7.6)
pH actual (will read close to set point providing acid container has acid available to be dosed)
For some installations, such as commercial pools it may be beneficial to display the actual O
RP reading instead of “Chlorine
OK, Chlorine High or Chlorine Low”.
Generally, this is not recommended for residential applications.
Within the INSTALL MENU the following screen is displayed:
