Rola-Chem 554000 ORP/pH Digital Controller - Manual (Page 7)

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 steady during feed delay.
ORP FEED lamp flashes while feeding chemical and illuminates steady during feed delay.
4. pH/ORP DIGITAL DISPLAYS
Monitors pH and ORP and displays programmed set points.
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
8
4
6
7
5
3
2
1
FEED FEED
MODE
O
W
AUTO
ORP
pH
pH
F
AlERT
l
ORP pH
ALERT ORP
CALIB
pH LOW HI
TIME
FEED
LEVEL
SET
ONCE
FEED
Modes: The controller has four modes of operation:
• ON/OFF mode.
• AUTO mode- operating
• pH - setting mode
• ORP- setting mode
To move from one mode to another simply press the MODE button.
The illuminated lamp indicates the current mode.
Rola-Chem Digital Controller PN 554102 6/01/2012 Page: 7 of 20