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The CDCN10 Series is specifically designed to measure
conductivity/dissolved solids and pH in cooling towers, boilers,
industrial process water, food processing, drinking water and
wastewater treatment applications. The CDCN10 Series
conductivity/pH controllers are highly accurate and easy to install
and operate. Engineering units can be displayed in either US or
metric values using the pushbutton keypad and the simple
scroll-through menus. Both units control conductivity, with the
ability to control 3 additive feed programs. You can get a readout
of the probe temperature. pH measurement and control is optional
on both units, as is a safety flow switch contact, and RS485
communications.
The CDCN12 has additional features over the standard CDCN11,
including dynamic probe failure testing for pH/ORP sensors,
allowing the controller to detect a probe failure quickly after it
occurs, so the user can avoid dangerous out-of-range conditions.
For convenience, the CDCN12 features a large 4-line LCD readout
and 16-button keypad.
SPECIFICATIONS
Measurement Range:
Conductivity: 0 to 20,000 µS/cm or ppm; conversion factor for TDS
pH: 0 to 14 pH; setpoint for acid or base feed
Accuracy:
Conductivity: ±1% rdg
pH: ±0.1 pH
Resolution:
Conductivity: 1µS
pH: 0.01 pH
Temperature Range: -18 to 60°C (0 to140°F)
Watermeter Input: For totalizer function, CDCN11 only
Sensor Calibration: 1, 2 or 3 points
Control Modes: Off, manual, auto, timer, bleed and feed, bleed-then-feed, daily schedule
Langelier Index: Water balance display calculated from pH, temp, total alkalinity and calcium hardness
Alarms: High/low, out-of-range, overfeed and total run time; visual, audible and external (5 A) alarms
Data Logging: On-board memory for 999 tests; RS232 communication port for local download and printing
Networking: RS485 port for multiple connections (optional)
Remote Operation: Software and graphical display for Windows®
Power: 115/230 Vac, 10 A
Control Outputs: 5 A relays, SPST
CDCN11 Relays: 3 additive, one alarm, one bleed
CDCN12 Relays: 2 additive, one additive/alarm (selectable), one bleed
Probe Sensor Failure: CDCN12 only, for pH/ORP electrode
Display:
CDCN11: One line LCD; 5-button keypad
CDCN12: Four line LCD; 16-button keypad
Mechanical: NEMA 4X enclosure
Dimensions:
CDCN11: 240 x 190 x 90 mm (9.5 x 7.5 x 3.5")
CDCN12: 285 x 234 x 155 mm (11.21 x 9.21 x 6.09")
Shipping Weight:
CDCN11: 2.7 kg (6 lb)
CDCN12: 6.0 kg (13 lb)
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† All dollar amounts on this site are shown in US currency.
Note: Comes complete with operator’s manual and 3V lithium battery. Probes sold separately.
When ordering the conductivty or pH controller, it is recommended to purchase pH buffer solution, such as PHA-7, pH buffer 7 and conductivity standard solution.
Ordering Example: (1) CDCN11 Conductivity controller, (1) CDE10 Conductivity sensor, (1) CDSA-1413 Conductivity standard solution, 1413 µS/cm = $1533
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Keywords:cdcn
Complete Water Treatment Controller Systems
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