ROLA-CHEM Digital Controller PN 554135 12/26/18 Page: 8 of 24
3.3
Description of Controls
1- WATER FLOW LAMP
Illuminates brightly when water flow is indicated. Also indicates that power is on.
2- pH/ORP ALERT LAMPS
Illuminates red when the Hi or Low Alert levels are reached.
3- CHEMICAL FEED LAMPS
pH FEED lamp flashes while feeding chemical and illuminates continuously during feed
delay.
ORP FEED lamp flashes while feeding chemical and illuminates continuously during feed
delay.
4- pH/ORP DIGITAL DISPLAYS
Monitors pH and ORP and displays programmed set points.
The Digital Display numbers will flash if Consecutive Feed Alert Limit is exceeded.
5- pH STANDBY LAMP AND PROGRAMMING BUTTONS
When pH standby lamp is illuminated the six set buttons are enabled.
6- MODE BUTTON AND AUTOMATIC LAMP
Press MODE button to pH or ORP and hold for 2 seconds for OFF.
Press and release MODE button to step from pH to ORP.
Press again to return to AUTOMATIC mode.
7- ORP STANDBY AND PROGRAMMING BUTTONS
When ORP standby lamp is illuminated the five SET buttons are enabled.
8- pH/ORP SENSOR CONNECTORS – BNC type
FEED
8
4
6
7
5
FEED
MODE
OW
ONCE
AUTO
ORP
pH
FEED
LEVEL
TIME
SET
FEED
pH
F
ALERT
l
ORP
pH
HI
LOW
CALIB
pH
ALERT
ORP
3
2
1
