Polaris Watermatic C-660, Руководство пользователя, Страница: 12 / 31

the chemical feed cycle and and the sensor detection of the
chemical levels after recirculation through the pool or spa, a
low feed rate can either cause the feeder to lag or the feed-
ing to be extended, and a high feed rate can result in too
much pH being added.
To check the feed rate, immediately after a pH feed cycle
ends, use a test kit to test the pH balance of the water. If the
pH is high (above the preset point of the pH set knob), the
feed rate is too high. If overfeeding persists, timed feed may
be required (see the Appendix on page 24).
Note: If feeding liquid acid (muratic acid), it is generally
advisable to dilute the acid (in the water) to avoid overshoot-
ing the set point. The smaller the body of water, the greater
the acid dilution is necessary.
5. The green pH feed light will activate only when the controller
is operating the pH feeding system. In constant feed, the
feed light will flash while feeding. The feed light will not acti-
vate when the pH alert light is on (pH is below 7.0 or above
8.2). If using timed feed, the feed light will flash during feed
cycle and be constant during the delay cycle.
Note: To verify the acid/base feed mode, set the desired pH
above the pH indicated on the digital display. The feed light
should come on if the controller is set for acid feed. If the
controller is set for base feed, the feed light will come on
when the desired pH is set below the pH indicated on the
digital display. The unit is normally set for acid feed mode
unless specified for base feed (see page 5 to change the
acid/base mode setting).
G. Sanitizer Settings
This controller displays direct ORP readings. While ORP
indicates the effectiveness of the sanitizer, it does not direct-
ly correlate to a ppm reading. If you desire ppm, use the
ORP reading as a relative indication of sanitizer level. Use
your DPD test kit to measure the free chlorine. If you need
more sanitizer than that indicated by the ORP display, set the
desired level above that point. If you require less sanitizer,
set the desired level below that point.
1. Hold in the set button, then turn the set knob until the
desired ORP level appears in the ORP display. Then release
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