Pool Controls Chemigem CM55, User Manual, Page: 21 / 36

Page 19
READING THE DISPLAY PANEL
What do the Chlorine and pH Numbers Represent?
· The Chlorine (ORP) number is the activity of the chlorine (see explanation of
ORP (Below) and measures in millivolts. (Refer to pages 19 and 30 to 32)
· The pH number is the measure of acid / alkalinity and is displayed in units of
the pH scale.
Left Hand Side of Display Screen
The numbers on the left-hand side of the display screen are the values the Probe is
registering for the
actual levels of Chlorine and pH within the pool water.
The Chemigem will work to achieve the same values as those
“SET”
on the right-hand end
of the display.
Right Hand Side of Display Screen
The numbers on the right-hand side of the display screen are the values
“SET”
.
The unit has been factory-set to achieve 650 millivolts Chlorine (ORP) and 7.7pH as the
preferred levels for Chlorine and pH respectively.
These settings may be raised or lowered using the keypads 7 and 8 for pH and 9 and 0 for
Chlorine (ORP) to the right of the display screen.
KEYPADS
Password
The Chemigem is protected by a password (if enabled). The number will be required when
operating the function changing keypads.
The screen provides information as to how to select a three-number password. The unit
cannot be disabled without the use of the password numbers.
Ensure that the password numbers are retained in a safe location for later reference.