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Model 2175e Conductivity Controller

1268647_2175e Conductivity controllerr



LonWorks® Technology is the latest in microprocessor capability that gives the user the highest level of application flexibility.  A large graphic screen, multiple inputs and very easy setup with easy field upgrade characterize this new technology


Power cord, plug outlets and detached plumbing make installation easy.  There is plenty of protected room inside the enclosure for electrician wiring.




  2175e MANUAL




  • Two water meter inputs, conductivity input with 4-electrode conductivity sensor with 20 ft cable, flow switch input, four relay outputs, and Power On/Off switch are all standard features.
  • Removable power cord and receptacles for simple conduit installations.
  • Includes four relays for bleed, chemical feed, and alarms; expandable up to 12 relay outputs.
  • Includes three security levels to prevent unauthorized programming access.
  • Includes two languages; English/Spanish are standard.
  • Heavy-duty stainless steel domed numeric keypad and large illuminated graphical display allow for quick and easy programming.  Steel domed switches improve the tactile sensing and life expectancy of the keypad.



  • Easy to program with the Lakewood plain English, intuitive, and user friendly menu interface.
  • Expandable in the field with the use of the Nodes for additional inputs, such as chiller loop monitor and cycles of concentration based on incoming makeup water or additional outputs such as 4-20 mA and remote communications.
  • Able to feed chemicals by multiple feed schemes including biocide addition, setpoint control, percent of blowdown, percent of time, and by water meter.
  • Able to bleed based on setpoint or by water meter.
  • Includes sensor fouling compensation and alarm.





Inputs   Controller  
Power 120/240 VAC  50/60 Hz ConductivityRange 0-5,000 µS (other ranges optional)
Sensor 4 electrode Conductivity Conductivity Accuracy ± 40 µS
  304 S.S. electrodes Conductivity Resolution 10 µS
Temperature comp. Automatic Deadband Adjustable
Flow switch Dry contact Setpoints Direct or Reverse (config in the field)
Water Meter Inputs Contacting head, Paddle Feed timer Adjustable
  Wheel, or Turbine. Keypad 16 tactile push-buttons
Outputs Display Illuminated 128×64 pixel LCD
Relays Four, 3 Amps @ 120 VAC Ambient Temperature 32-158°F (0-70°C)
4-20 mA Two isolated or non- Enclosure NEMA 4X, ETL
isolated w/-35L option
Sensors/Plumbing Cooling Tower
Max Pressure 140 psi  (9.65 bar)@ 100 °F
Max Temp 140°F (60°C)
Min flow 1 gpm (3.785 Lpm)

LonWorks is a registered trademark of Echelon Corporation





2175e    LonWorks® Technology-based conductivity and water meter actuated chemical feed controller.  The 2175e has built-in options for feed on conductivity, by feed schedule, blowdown or makeup.  Totalizing of makeup and blowdown, and three security levels are standard features.  Conductivity range is 0-5,000 µS.
CONTROLLER OPTIONS (optional, select one or more)
-PS         +24 volt power supply required for 3 or more nodes.
-RS2L      Communications node with LRWS program.
-35L        Two 4-20 mA output configurable for remote data acquisition of conductivity.
-NIN        Network interface node.  Allows 2 NRLY, 1 Makeup NCON, 4 sensor nodes (NpH or NCON), 2 N420I  and or 2 NDIG to be added.
2KIN-V1  Card to connect controller to LON based systems or gateways.
LANGUAGE OPTIONS (optional, choose one, English and Spanish Standard)-EF          English and French.

-EG          English and German.

REMOTE NODE OPTIONS (optional, MUST have -NIN Option)
NRLY      Four additional relays with enclosure (2 per 2000 Series Controller), also availablewith receptacles and power cord
NpH         pH/ORP node for a pH or ORP sensor.
N420I      4-20 ma input node for up to four 4-20 ma inputs.
NDIG      Digital input node for up to four digital inputs.
NCON     Conductivity node for makeup water or closed loop control (node only).
NCKT     Conductivity node for makeup water or closed loop control with PVC sensor, tee  and enclosure.  Maximum water pressure and temperature is 140 psi @ 100°F  (9.7 bar @ 38°C).



MP          Mounting Plate (12 X 21 in.)


LRWS       Windows-based software program for computer to communicate with 2000 Series.

WEBNode IP/TCP device for use with 2000 Series controllers.

EZWeb     Wireless internet interface for use with WEBNode and 2000 Series controllers.







1166418            O-Ring, for sensor and/or flow sight, set of 10

1169740            Red Ring replacement Kit set of two

1107004            Reed Switch w/20 ft of cable

1167266            Flow Sight set of five

1167234            Flow Float set of five

1107003            Plumbing, with 20′ FS, remote plumbing

1169202            Sensor, Conductivity 4 elec w/ 20 ft of cable

1107251            PS (+24VDC supply required for 3 or more nodes)