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8.3 I Eff ects of the stabilising agent on chlorine and ORP
A pool ideally has a stabiliser level of 30 ppm and a pH of 7.4.
1 ppm of free chlorine = 700 mV
The user can therefore adjust the chlorinati on requirements to 700 mV to maintain a level of 1 ppm in the pool.
If the level of stabiliser rises to 90 ppm, the ORP value will be incorrect.
1 ppm of free chlorine = 500 mV
If the user keeps the setpoint at 700 mV, a chlorine concentrati on of 5 ppm will eventually be obtained!
* Theoreti cal values for informati on purposes only. Real values may vary
slightly depending on the type of water in the pool.
8.4 I HELP menu
The appliance automati cally reports any problems by way of informati on messages. To make these messages easier to
understand, the appliance has a troubleshooti ng menu which gives the meanings and the acti ons to be taken to resolve
the problem.
• Press
and browse the menu using the
• Select the error message using the
• The screen automati cally scans a certain number of proposed soluti ons in order to provide explanati ons.
Once automati c scanning is complete, the appliance automati cally returns to the troubleshooti ng menu.
• Press
to exit.
56
Variati ons in the ORP measurement depending
on the stabiliser concentrati on (pH 7.4, 25°C)*.
ORP MEASUREMENT (MV)
butt ons. Press
Stabiliser level
of 90 ppm
Stabiliser level
of 30 ppm
Setpoint
butt ons. Press
to confi rm.
to confi rm.
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