Rola-Chem RC554XP ORP/pH Digital Controller - Manual (Page 17)

Rola-Chem Digital Controller PN 554135 02/17/2014 Page: 17 of 20
8.2 Factory Default Setting
Reset: The controller can be reset at any time to the default factory settings.
The factory presets are:
ORP set level: 650mv
pH set level:
7.4
ORP alerts: high- 900 mv, low- 100 mv
pH alerts: high- 8.0, low- 7.0
Feed time: 0.6 seconds
To reset default settings, follow these steps:
A. Turn the controller Off:
Press ‘MODE’ to ORP or pH and then hold ‘MODE’. The display will read “oFF”.
Release the ‘MODE’ button. Only the flow light should be on.
B. Simultaneously depress and hold ‘SET LEVEL’ & ‘pH CALIB’
While they are depressed, push ‘MODE’
The displays will read “Ld” and then turn On.
C. Release the ‘SET LEVEL’ and ‘pH CALIB’ buttons.
D. The controller is now in test mode. Test mode shortens minutes to seconds.
E. Turn the controller Off again to exit test mode.
F. Turn the controller On to return to operating mode.
The last two steps are extremely important since this puts the controller back in operating
mode. If these two steps are not performed the controller will remain in test mode and it will
not operate properly.
8.3 WATER CHEMISTRY RANGES
(These ranges are in accordance with suggested NSPI
Standards for swimming pools.)
pH: 7.4 -7.6
Alkalinity: Approx. 80-120 ppm ** (parts per million)
Higher levels may be acceptable in areas where it naturally occurs in the local water
supply.
Consult a pool professional in your area.
Cyanuric Acid: 0-50 ppm.
(Maintain at 30 ppm or less for best probe life.)*
TDS (Total Dissolved Solids): 300 - 2000 ppm
Calcium Hardness: 200-400 ppm
Free Chlorine: 1.0 - 3.0 ppm (> 700 millivolts ORP)
*20-30 ppm of cyanuric acid provides approx. 95% of the shielding effect for chlorine.
**When using tri-chlor, recommended alkalinity is 95-125 ppm.