Rola-Chem RC554P pH Digital Controller User Manual
Page 9
Rola-Chem Digital Controller
PN 554236 02/17/2014
Page: 9 of 12
4.3.3 Acid/Base Feed Selection:
The controller has a terminal shipped with a ‘jumper’ used to select acid or base
chemical. The jumper can be moved to change type of feed. Factory setting is acid feed.
Acid feed mode will feed chemical when the pH reading is above the pH set point.
5.0 Operation
5.1 Startup
Do not add chemicals to the feeders until all
start-up operations are completed. Using a
DPD test kit, manually adjust and balance the pool to acceptable ranges. Automation
should be used to maintain chemical levels, not to balance a pool that is out of
acceptable ranges. With the controller in the OFF Mode, turn the filter pump on and
check for leaks in the system and flow through the flow cell. The flow lamp will be
illuminated if the controller has power, it is connected to the flow switch and there is
adequate flow. If a flow switch is not attached, the flow lamp will be illuminated if there is
a jumper in the flow cell terminal. Using a flow switch is always recommended.
5.2 pH setting
Press and release the controller MODE button until the AUTO light is off. Then select the
desired set level and feed time cycle.
5.3 pH Calibration
Always calibrate using water from the sample port of the flow cell, unless using preset
buffer solution. It may take up to 24 hours before the sensors acclimate to the system so
recalibrate 24 hours after the first calibration. The pH sensor can drift slightly over time
and calibration will offset this drift. The pH sensor should be calibrated every four to six
weeks.
5.4 Operating Mode
Press the MODE button until “AUTO” is lighted. This is the operational mode for the
controller. The controller must be in this mode to maintain the desired parameters.
Timed feed settings: T
he feed lamp will flash during the feed time and be constant during
the delay time of the feed cycle.
Power will be supplied to feeder until set-point is
reached and feed cycle is completed. If over feeding is occurring, consider using a
shorter feed cycle.
Constant feed setting: T
he feed lamp will flash while feeding.
Power will be supplied to
feeder until the set-point is reached.
Feed lamp will not activate when pH alert lamp is on (pH is below or above the alert
settings).