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
Time-Based Chemical Level Alarm
NEMA 4X Wall Mount Enclosure
Remote Computer Operation with Windows Software
The CDCN Series has been discontinued. Please see the CDTX-111/CDTX-112 Series as a possible alternative or contact our Flow Engineering Department.
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
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; CDCN12 has, as standard, an 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)
注: 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) CDSA-1413 Conductivity standard solution, 1413 µS/cm, ¥7,613