Water Treatment Controllers

CDCN Series

PASSEZ VOTRE COMMANDE

Digital Conductivity Display and Control
Temperature Display
Three Chemical Feed Programs (Conductivity, pH and Additive)
Langelier Saturation Index for Water Balance
Chemical Level Alarm
Integral Data Logging for up to 999 Points With RS232 Communications
Time-Based Chemical Level Alarm
NEMA 4X Wall Mount Enclosure
Remote Computer Operation with Windows Software

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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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CDCN11