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Home  >  pH Meters and Water Quality Products > Process pH and Water Quality Control

Process pH and Water Quality Control

Process pH and Water Quality Control

Water treatment controllers include more than just a controller. Many other components are used to ensure that the measurement is correct, records are kept, and chemicals are added and mixed. Water treatment controllers are available with different mounting styles, number of inputs and outputs, control method, temperature compensation, and other features to suit your application. In addition we have a range of transmitters to use when control is not required. Control methods in water treatment controllers are varied. An on/off control is the simplest and most economical for equipment cost, but the least precise control method. A pump at a fixed flow rate is turned on when deviations from a set point occur and off when the set point is reached. Water treatment controllers that used proportional have an output proportional to the difference between the set point and measured value. This can take the form of a pulse whose frequency increases, as more chemical is required, or as a 4 to 20 mA signal where increased amperage corresponds to more chemical feed demand. For more information on water treatment controllers and systems contact a Cole-Parmer Technical Expert today.
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EW-01972-00 Benchtop Dissolved Oxygen Controller, 110 VAC

Benchtop Dissolved Oxygen Controller, 110 VAC

Display 3-1/2 digit LED,Brand Cole-Parmer,Model MAKE UP
EW-01972-00
Call 1-888-358-4705 for availability.
$1,155.00 USD/EACH

Qty:
EW-56022-47 Etatron DLXB pH/ORP Pump Control System, 1 L/hr, 15 bar max pressure, foot-mount, 115 VAC

Etatron DLXB pH/ORP Pump Control System, 1 L/hr, 15 bar max pressure, foot-mount, 115 VAC

Product Type Controller,Control type On/Off,Display 4-digit LCD
EW-56022-47
In stock.
$780.00 USD/EACH

Qty:
Representative photo only Cole Parmer Ion Concentration Controller

Cole-Parmer Ion Concentration Controller

Product Type Controller,Resolution pH 0.01/0.1/1,Control type On/Off
EW-56105-00
Call 1-888-358-4705 for availability.
$945.00 USD/EACH

Qty:
Representative photo only Eutech Instruments COND 560 Conductivity Controller with 2 Relays 110 220 VAC

Eutech Instruments COND 560 Conductivity Controller with 2 Relays, 110/220 VAC

Control type On/Off,Display 2 line back lit LCD
EW-19505-40
In stock.
$403.00 USD/EACH

Qty:
EW-56717-30 Eutech Instruments<small><sup>&reg;</sup></small> pH 550 pH/orp Monitor

Eutech Instruments pH 550 pH/orp Monitor

Product Type Monitor,Accuracy pH -0.01 to 0.01,Resolution pH 0.01
EW-56717-30
In stock.
$327.00 USD/EACH

Qty:
EW-05997-35 Wall-mount pH controller with recorder

Wall-mount pH controller with recorder, one input; no ATC, 110 VAC, 50/60 Hz

Product Type Controller,Accuracy pH -0.05 to 0.05 (normal); -0.005 to 0.005 (expanded),Resolution pH 0.01 (normal); 0.001 (expanded)
EW-05997-35
Call 1-888-358-4705 for availability.
$1,804.00 USD/EACH

Qty:
EW-05802-22 CONTROLLER, PH/ORP 1/4 DIN

Cole-Parmer 500 pH/ORP/Temperature 1/4 DIN Controller

Product Type Controller,Accuracy pH +/- 1% + 1 digit,Resolution pH 0.01
EW-05802-22
Usually ships in 4 days or sooner.
$389.00 USD/EACH

Qty:
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Representative photo only Eutech Instruments DO 1000 Dissolved Oxygen Controller 1 4 DIN 220 VAC

Eutech Instruments DO 1000 Dissolved Oxygen Controller, 1/4-DIN, 220 VAC

Control type proportional,Display dual display of DO reading plus temperature
EW-53400-05
In stock.
$903.00 USD/EACH

Qty:
Representative photo only HF Scientific MicroTOL 4 Turbidimeter 0 to 1000 NTU EPA compliant self cleaning

HF Scientific MicroTOL 4 Turbidimeter, 0 to 1000 NTU, EPA compliant, self-cleaning

Product Type Turbidity Controllers,Description MicroTOL 4 Turbidimeter,Width in. 9
EW-99544-20
Usually ships in 11 days.
$2,550.00 USD/EACH

Qty:
EW-99544-00 HF Scientific MicroTOL 2 Turbidimeter, 0 to 1000 NTU, EPA compliant

HF Scientific MicroTOL 2 Turbidimeter, 0 to 1000 NTU, EPA compliant

Product Type Turbidity Controllers,Description MicroTOL 2 Turbidimeter,Width in. 9
EW-99544-00
In stock.
$1,620.00 USD/EACH

Qty:
EW-05997-40 Cole-Parmer<small><sup>&reg;</sup></small> pH Recorder/Monitor, 115 VAC 50/60 Hz

Cole-Parmer pH Recorder/Monitor, 115 VAC 50/60 Hz

Product Type Monitor,Resolution pH 0.01 (normal); 0.001 (expanded),Display None
EW-05997-40
Call 1-888-358-4705 for availability.
$1,110.00 USD/EACH

Qty:
Representative photo only Etatron DLX pH ORP Pump Control System 20 L hr 3 bar max pressure wall mount 115VAC

Etatron DLX pH/ORP Pump Control System, 20 L/hr, 3 bar max pressure, wall-mount, 115VAC

Product Type Controller,Control type On/Off,Display 4-digit LCD
EW-56022-46
Usually ships in 14 days.
$920.00 USD/EACH

Qty:
Representative photo only Eutech Instruments COND 2000 1 2 DIN Proportional Inegral or On Off Wall Mount Conductivity Controller

Eutech Instruments COND 2000 1/2-DIN, Proportional-Inegral or On/Off Wall Mount Conductivity Controller

Control type On/Off,Display LED
EW-19507-00
Call 1-888-358-4705 for availability.
$934.00 USD/EACH

Qty:
EW-19010-02 Myron L Digital Resistivity Controller, 0 to 20 M&#937;

Myron L Digital Resistivity Controller, 0 to 20 M

Display digital
EW-19010-02
In stock.
$634.00 USD/EACH

Qty:
EW-56022-40 Etatron DLX pH/ORP Pump Control System, 1 L/hr, 15 bar max pressure, wall-mount, 115VAC

Etatron DLX pH/ORP Pump Control System, 1 L/hr, 15 bar max pressure, wall-mount, 115VAC

Product Type Controller,Control type On/Off,Display 4-digit LCD
EW-56022-40
Usually ships in 14 days.
$764.00 USD/EACH

Qty:
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