Astralpool SEL BLUE EVO, Installation And User Manual

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SEL BLUE EVO ENGLISH
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Calibration process:
Warning: Before calibrating the sensor, verify that no chlorination is occurring. If electrolysis is taking place, adjust
chlorine production to 0%.
1) Unscrew the cell as far as possible (it is not necessary to stop the filtering pump),
2) take the sensor out of its space, rinse it and wet it in the pH solution by shaking. When the value displayed
on the main screen is stable (1 to 2 minutes), go into "
Sensor Calibration " in the " pH Menu ."
3) Adjust the value of the calibration solution and validate.
4) Put the sensor back into its place on the cell, and close the cell again inside the vessel.
5) Flush the cell ( Fig. 8.3 ).
6) Put the chlorinator back into normal production conditions (% prod.).
7) Return to main screen
Note : You may also perform calibration in a simpler manner if you have an accurate pH measurement instrument,
such as a photometer. In this case, perform calibration at the value measured by the photometer and validate,
without having to remove the sensor from its slot.
3 – ORP Menu
The ORP sensor (ORP option) is used to measure the oxidation reduction potential of the
swimming pool (RX). The ORP measurement is used to adjust chlorine production.
Warning: In order to get a good ORP measurement, the pH level must be below 7.3 . If
the pH level is too high (>7.5) , the ORP measurement is distorted and may lead to
overproduction of chlorine.
1-Deactivate ORP
This option is only available in the models with pH regulation or dynamic models.
Models with ORP chlorine regulation : this feature is activated by default (value shown on the main screen). It may
be deactivated for maintenance on the sensor or to restore manual adjustment of chlorine production.
Dynamic models (EVO) : this feature is deactivated by default (display on main screen: ORP This feature will be
activated after installation of the ORP kit by the user (dynamic change to chlorine regulation).
2 -Setting ORP
Adjustment of the ORP setting (400 mV~750 mV). Factory setting of 700mV.
Choosing the setpoint is considered critical to achieving good water disinfection. ORP is a relative measurement.
Each swimming pool has its own "ideal" setpoint: To find this setpoint, follow these steps:

Check to make sure your water's parameters (pH, chlorine level, TAC, stabilising agent, salt) are correct (Fig. 1)

Turn on the filtering for a few hours without a time setting and without turning on the chlorinator, with the
ORP sensor placed in its slot for the amount of time required to get the water's chemistry to become stable
(certain pools may require up to 24h).

Start up the device and wait for 2 minutes until the ORP value displayed on the screen remains steady. Take
note of this value.

Go to the ORP Setting in the ORP Menu and adjust to the value you have noted.
Once this setpoint has been identified, you can increase or decrease it in order to increase or decrease, respectively,
chlorine production so as to remain within the optimum chlorine concentration range (0.5<ppm CL<3)
Warning: Do not change the production setpoint without first necessarily having verified the chlorine and pH level
in the pool.
Warning: The ORP measurement may vary depending on the time setting and heavy UV radiation exposure.
Restoring the setpoint value may take several hours, the time required for the chlorine adjustment to take effect.
1-Deactivate ORP
2 -Setting ORP
3-Sensor calibration
4-Return to menu