Model 2350P pH Cooling Tower Controller Microprocessor-Based From Lakewood Instruments


Model 2350 Microprocessor-Based pH Cooling Tower Controller

Discontinued Model

pH,Cooling,Tower,Controller,Microprocessor,Based,Model 2350,Lakewood,InstrumentsLONWORKS 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.

Features

  • Differential pH sensor with diagnostics indicate fouled reference or broken glass.

  • Integral flowsight & flowswitch lockout.

  • Records both makeup (MTR1) and blowdown (MTR2) water meter total gallons.

  • Configure blowdown water meter (MTR2) as second makeup meter.

  • Four user-selectable relay options (four additional with NRLY):

    • Feed by setpoint, direct or reverse;

    • Water meter actuated feed. MTR1, MTR2 or sum;

    • Feed by percentage of time;

    • Schedule feed timer (-RTC Option);

    • General alarm contact.

  • Three security levels:

    • View only

    • Operator

    • Technician

  • Four different languages.

    • English Spanish (standard)

    • English French (optional)

    • English German (optional)

Benefits

  • Multiple control options in a single economical package.

  • Very accurate control of chemical feed.

  • Very low maintenance.

  • Tolerant to power surges and brownouts.

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

  • Very accurate monitoring of the evaporated water.

  • Has expansion slots to add additional control, such as chiller loop monitor.

Specifications

Inputs
Power
80-300 VAC
Sensor
pH combination glass electrode
Temperature comp.
Automatic
Flow switch
Dry contact
Water Meter Input/div>
Two contacting head or open collector
Outputs
Relays
Four, 3 Amps @ 120 VAC
4-20 mA
Two, isolated w/-35L
Sensor/Plumbing
Pressure
140 psi (9.7 bar) @ 100ºF (38º C)
Max. Temperature
140ºF (60ºC)
Min. Flow
1 gpm (3.8 Lpm)
Controller
pH Range
0-14 pH
pH Accuracy
+/-0.05 pH
pH Resolution
0.01 pH
Deadband
Adjustable
Setpoints
Direct or Reverse (configurable in the field)
Feed timer
Adjustable
Keypad
Numeric
Display
Illuminated 128x64 pixel LCD
Ambient Temperature
32-158º F (0-70º C)
Enclosure
ABS Plastic
NEMA 4X Optional

Ordering Information

2350
LONWORKS Technology-based pH controller with 4 selectable relays for HIGH/LOW setpoints or alarms. Includes plumbing, sensor, flowswitch, power cord and outlets. pH range is 0-14 pH with adjustable deadband.
CONTROLLER OPTIONS (optional, select no more than three)
-RTC
Adds 24-hour clock and calendar to controller (required to configure relays to feed chemicals/biocides based on time of day and for data acquisition if using the -RS2L Option). NOTE: Adding an -RTC card does NOT add relays.
-35L
Two 4-20 mA outputs configurable for remote data acquisition of pH.
-RS2L
Communications node with shareware software; requires -RTC Option.
-NIN ;
Network interface node allows 1 NRLY and/or up to 3 NCON/NCKTs to be added.
ENCLOSURE OPTIONS (optional)
-WP
Weatherproof and watertight. 1/2 inch knockouts. No outlets or power cords.
LANGUAGE OPTIONS (optional, choose one, English and Spanish Standard)
-EF
English and French.
-EG
English and German.
REMOTE NODE OPTIONS (optional; MUST purchase -NIN Option above)
NRLY
Four additional relays with enclosure (1 per 2000 Series Controller).
SOFTWARE AND EXTERNAL MODEMS
LRWS
Windows-based software for computer to communicate with 2000 Series Controllers.
MD4X
High-Baud modem in NEMA 4X enclosure ready to power.
MD
High-Baud modem for use with 2000 Series Controllers.

 

Model 2350P Cut Sheet

Model 2350P Spec Sheet

Model 2350P Manual

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