III. Components
The C-660 ORP/pH controller box contains:
• ORP/pH Controller
• Sensor Bypass Assembly (part# 9-735)
• ORP Sensor (part# 3-250)
• pH Sensor (part# 3-260)
IV. Pre-installation
A. Dip Switch Settings
The controller is factory set to provide continuous feed of both
ORP and pH. Before installing the controller, make sure that the
dip switch settings are consistent with the settings shown below.
To view or adjust the dip switch settings, make sure the con-
troller is unplugged from the power source. Remove the face
plate screws and expose the dip switches which are located on
the back of the module (see the drawing below).
pH Switches ORP Switches
(located behind (located behind
the pH display) the ORP display)
1. OFF ON
2. OFF ON
3. OFF OFF
4. OFF OFF
5. OFF OFF
6. OFF OFF
7. OFF OFF
8. ON OFF
9. ON ON
10. ON ON
For most controller applications, the continuous feed mode
is appropriate. However, if you are using the controller in
one of the following situations, you may need to change the
settings to allow for a timed feed cycle followed by a delay
cycle.
Please see the Appendix on page 24 for instructions.
• Using a peristaltic pump to feed the sanitizer or pH and you
are experiencing overfeeding