ROLA-CHEM
®
Digital Controller PN 554135 07/11/19 Page: 6 of 24
Acid/base, pH/ORP interlock, Consecutive Feed Alert Limit and keypad lockout control
switches are located behind the Power Panel Access Cover. See section 4.3.
The pH and ORP outputs are capable of handling 5 amps each at 120 Volt AC. The relay
outputs are fused and transient protected. An internal terminal strip is provided for field wiring
of the controller. The internal step-down transformer has a class-two energy limiting rating to
provide for electrical safety.
Note:
When automating any body of water, it is essential to size the feeders to reach desired
levels in a relatively short period of time. Generally, automating an existing body of water with
existing feeders will require the output of the feeders be increased accordingly. If feeders are
unable to keep up with demand in a short period of time, automation becomes ineffective.
