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POWER
ON
OFF
MAINTAIN
PROPER pH
FEED
MANUAL
pH
ADJ.
FEED
C-316
ORP Controller w/pH Display, 24 V
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8
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8
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¥
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0
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¥50
0 ¥600 ¥70
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Introduction
For your protection, read all instructions carefully before
installing or operating this automatic controller.
The Polaris Watermatic
®
C316 24-Volt Controller is designed to
automatically monitor and maintain the sanitizer level and pH
balance in swimming pools, spas and any circulating water sys-
tem that requires water chemistry management. This controller
is designed for easy installation and simple operation, and is
used with tablet erosion feeders.
During the filtration cycle of the pool or spa, the sanitizer level
and pH balance are maintained by a constant measurement of
the ORP (Oxidation-Reduction-Potential) and pH balance of
the water. Levels are displayed on the controller’s ORP and pH
light bar arrays (see Figure 1). If the sanitizer level (ORP) falls
below a predetermined set point, the controller activates the
chemical feeder until the preset level is reached. The pH is
maintained in a similar manner.
Figure 1