H0412500.A - EN - 2013-02
8
EN
- TRi PRO module:
pH set point
ACL set point
A '^' symbol appears to the right of the set point if the value measured by the equipment needs to be corrected automati
-
cally (pH of water in the pool higher than the set point and/or insufficient chlorine level). Then pH minus is injected and/
or chlorine produced automatically according to the defined cycles.
By default, pH regulation (peristaltic pump in the TRi pH or TRi PRO module) is disabled and the LCD screen will
display 'pH ---'. It is enabled automatically about 8 hours after being turned on. To enable pH regulation immedi
-
ately and so display the set point on the LCD screen, see § 3.6.2.
3.3 Calibrating the sensor(s)
•
To operate accurately and reliably, the sensors must be calibrated before using the TRi chlorinator with the TRi
pH or TRi PRO module. To maintain maximum efficiency of the unit, we recommend calibrating at least once
every 2 months during the period the swimming pool is being used.
•
Ensure the sensors are cleaned before calibration (see § 4.1).
•
Confirm that the TRi power pack is plugged in,
•
Stop the pool pump and isolate the sensors by closing any valves, so as to be able to re
-
move the sensors safely.
•
Remove the sensors from their sensor holder on the POD (unscrew the locking ring by
hand).
•
Rinse the end of the sensors with clean water and shake them to remove excess water.
Do not touch or wipe the glass bulb at the end of the sensors.
•
Put the pH sensor into a sample of the pH7.5 buffer solution supplied.
•
Put the ACL sensor into a sample of the 700 mV buffer solution supplied.
•
Leave the sensors immersed for about 1 minute to obtain a reliable measurement.
•
Press
, then use the
or
keys to display 'CALIB. PH' or 'CALIB. PH/ACL', then press
.
•
Use the
or
keys to display 'PH CALIBRATION' or 'ACL CALIBRATION', then press
.
Note the measured value:
•
pH = 'X.X'
-
If the value is greater than 8.2 or less than 6.4: the sensor is dirty or has been damaged during transport. Clean the pH
sensor (see § 4.1) then repeat the above steps. If the problem persists, contact your reseller.
-
If the value is between 6.4 and 8.2, press
to begin calibration. The procedure takes about 15 seconds.
-
When calibration is finished, check that the value displayed equals 7.5, otherwise repeat the calibration.
•
ACL = 'XXX'
-
Start the calibration procedure by pressing
; the procedure lasts about 15 seconds,
-
If the value is 700: calibration is correct
-
If the value is not 700: repeat the calibration steps. If the problem persists, contact your reseller.
•
Press
or wait 30 seconds to exit.
3.4 Adjusting the set point(s)
The set point is displayed continuously on the LCD home screen.
The default setting for the pH set point is pH7.2 (TRi pH and TRi PRO modules).
The default setting for the ACL set point is 4 (TRi PRO module).
This value provides the ideal compromise to achieve optimum efficiency in terms of water disinfection.