| Reagent Control System |
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| Updated 5/16/2009 |
REAGENT CONTROL SYSTEMS are designed to monitor waters for controlling the addition of
reagents to achieve predetermined process set points. These systems eliminate operator
guesswork when adding chemicals to water streams, and thereby prevent the under-or-over
dosing of reagents even under fluctuating conditions. Specific application electrodes, immersed in
the solutions, continuously signal their respective controllers that monitor these signals and
control the addition of reagents on a real time basis. The uniform, reliable process monitoring and
control ensures consistent results and a significant reduction in chemical usage and costs.
reagents to achieve predetermined process set points. These systems eliminate operator
guesswork when adding chemicals to water streams, and thereby prevent the under-or-over
dosing of reagents even under fluctuating conditions. Specific application electrodes, immersed in
the solutions, continuously signal their respective controllers that monitor these signals and
control the addition of reagents on a real time basis. The uniform, reliable process monitoring and
control ensures consistent results and a significant reduction in chemical usage and costs.
APPLICATIONS:
Reagent Control Systems can readily be incorporated into new or existing continuous flow and
batch water treatment systems for the following applications:
pH MONITORING and CONTROL for adding acid or caustic to achieve a preset pH value.
ORP MONITORING and CONTROL for adding reagents to achieve specific chemical reduction or
oxidation reactions to preset millivolt values.
Reagent Control Systems can readily be incorporated into new or existing continuous flow and
batch water treatment systems for the following applications:
pH MONITORING and CONTROL for adding acid or caustic to achieve a preset pH value.
ORP MONITORING and CONTROL for adding reagents to achieve specific chemical reduction or
oxidation reactions to preset millivolt values.
SYSTEM COMPONENTS
The components utilized in a system are selected according to the specified application. The typical component selection for each system
is shown above. The descriptions that follow are for the major components incorporated into the systems.
CONTROLLER
The controller monitors the electrode signal and activates the output relays as called for by the off/on high and low set point control. The
controller is housed in the enclosure described below. All controls and displays are located on the front panel for convenient monitoring
and adjustment. Features include a large digital LED readout and LED status indicator lights for alarm conditions. Separate high and low
set points, with adjustable hysteresis, control the relays which activate dosing pumps, reagent metering devices, valves, lights, alarms, etc.
Other features include 4-20 mA output for remote monitoring and hard copy recording.
The components utilized in a system are selected according to the specified application. The typical component selection for each system
is shown above. The descriptions that follow are for the major components incorporated into the systems.
CONTROLLER
The controller monitors the electrode signal and activates the output relays as called for by the off/on high and low set point control. The
controller is housed in the enclosure described below. All controls and displays are located on the front panel for convenient monitoring
and adjustment. Features include a large digital LED readout and LED status indicator lights for alarm conditions. Separate high and low
set points, with adjustable hysteresis, control the relays which activate dosing pumps, reagent metering devices, valves, lights, alarms, etc.
Other features include 4-20 mA output for remote monitoring and hard copy recording.
The combination pH measuring and reference electrode is housed in a single one-piece epoxy body, gel-filled, with sealed DOUBLE
JUNCTION design to eliminate unwanted chemical interference and clogging. It has a 1/2 inch body diameter and is supplied with a 3
foot coaxial cable with BNC connector.
ION SPECIFIC ELECTRODE
This ultra sensitive electrode is engineered for direct measurement of specific ion activity in wastewaters for treatment with organic and
inorganic precipitants. Fast, drift-free response ensures accurate dosing. This electrode features a durable epoxy body (1/2 inch
diameter) with an extra thick sensing element for long life. It is supplied with a 3 foot coaxial cable with BNC connector.
ORP ELECTRODE
This is a combination measuring and reference electrode housed in a single epoxy body cartridge. It is a double junction type with a
platinum sensor for fast accurate response to the oxidizing or reducing potential of solutions. It has a 1/2 inch body diameter and a 3 foot
cable with BNC connector.
ENCLOSURE
The environmental enclosure, supplied with mounting brackets, provides protection to NEMA 12 standards. It houses the applicable
controller(s), on/off switch, fuse, relays, power cord, and a "pigtail-type" electrical receptacle that receives the signal from the relay
terminal block for activating a pump, valve, lights, alarms, etc., - up to 8 amps.
ADAPTERS/CABLES/ELECTRODE HOLDERS
Reference Adapter Tee – Supplied with the system when an ion controller reference junction is required.
BNC Extension Cable – an extension cable is required when electrodes are located more than 3 feet from controllers. A 40 ft length is
supplied for each controller.
Submersible Electrode Holder – Supplied for each electrode, this variable length holder allows electrode to be submerged in liquid.
CHEMICAL METERING PUMPS
Metering pumps are application specific and because many users already have metering pumps, none are included with the packaged
systems shown on page 3. Each system includes a receptacle for connecting a reagent pump to the control system
JUNCTION design to eliminate unwanted chemical interference and clogging. It has a 1/2 inch body diameter and is supplied with a 3
foot coaxial cable with BNC connector.
ION SPECIFIC ELECTRODE
This ultra sensitive electrode is engineered for direct measurement of specific ion activity in wastewaters for treatment with organic and
inorganic precipitants. Fast, drift-free response ensures accurate dosing. This electrode features a durable epoxy body (1/2 inch
diameter) with an extra thick sensing element for long life. It is supplied with a 3 foot coaxial cable with BNC connector.
ORP ELECTRODE
This is a combination measuring and reference electrode housed in a single epoxy body cartridge. It is a double junction type with a
platinum sensor for fast accurate response to the oxidizing or reducing potential of solutions. It has a 1/2 inch body diameter and a 3 foot
cable with BNC connector.
ENCLOSURE
The environmental enclosure, supplied with mounting brackets, provides protection to NEMA 12 standards. It houses the applicable
controller(s), on/off switch, fuse, relays, power cord, and a "pigtail-type" electrical receptacle that receives the signal from the relay
terminal block for activating a pump, valve, lights, alarms, etc., - up to 8 amps.
ADAPTERS/CABLES/ELECTRODE HOLDERS
Reference Adapter Tee – Supplied with the system when an ion controller reference junction is required.
BNC Extension Cable – an extension cable is required when electrodes are located more than 3 feet from controllers. A 40 ft length is
supplied for each controller.
Submersible Electrode Holder – Supplied for each electrode, this variable length holder allows electrode to be submerged in liquid.
CHEMICAL METERING PUMPS
Metering pumps are application specific and because many users already have metering pumps, none are included with the packaged
systems shown on page 3. Each system includes a receptacle for connecting a reagent pump to the control system
PRICING:
For a single controller unit (pH, ION, or ORP only)
$2500.00*
*includes S/H within USA
For a dual controller unit (pH/Ion or pH/ORP)
$2900.00 *
*includes S/H within USA
Shipment is 2-3 weeks after receipt of order. Please provide your Street Address Only Please.
This item will not ship to a PO BOX! Thanks
For a single controller unit (pH, ION, or ORP only)
$2500.00*
*includes S/H within USA
For a dual controller unit (pH/Ion or pH/ORP)
$2900.00 *
*includes S/H within USA
Shipment is 2-3 weeks after receipt of order. Please provide your Street Address Only Please.
This item will not ship to a PO BOX! Thanks
PRECIPITATION MONITORING and CONTROL for adding precipitating reagents to achieve complete precipitation reaction of the ionic
metals to a preset millivolt value. This control system is more accurate for this application than using ORP control because it is less
affected by pH fluctuations and the presence of reducing agents.
BATCH TREATMENT: Two models of the reagent control systems, pH/ION and pH/ORP, are prepackaged to perform two functions, i.e.,
they monitor and control both the addition of pH balancing reagent, and the addition of either precipitants (pH/ION) or ORP reagents
(pH/ORP). These systems are configured to operate in a sequential mode. Under this arrangement, the pH value controls the system
operation. The second function, controlled by the ION or ORP controller, is in sequence to the pH function. Only when the pH preset
value is achieved and maintained, is the secondary function activated. Whenever the pH value drifts from the preset point, the
secondary function is halted and the pH adjustment made before the secondary function resumes. Application examples include
Heavy Metal Precipitation
CHEMICAL SAVINGS
Utilizing an automated REAGENT CONTROL SYSTEM typically reduces chemical usage from 20% to 50% while at the same time
providing real-time discharge compliance.
PACKAGED SYSTEMS
Packaged systems are available for all applications which call for measurements of, and responses to, the oxidation/reduction
potential (ORP), ionic activity and/or pH values in solutions. The components, selected for each specific application, are housed in an
environmental enclosure which provides protection to NEMA 12 standards
metals to a preset millivolt value. This control system is more accurate for this application than using ORP control because it is less
affected by pH fluctuations and the presence of reducing agents.
BATCH TREATMENT: Two models of the reagent control systems, pH/ION and pH/ORP, are prepackaged to perform two functions, i.e.,
they monitor and control both the addition of pH balancing reagent, and the addition of either precipitants (pH/ION) or ORP reagents
(pH/ORP). These systems are configured to operate in a sequential mode. Under this arrangement, the pH value controls the system
operation. The second function, controlled by the ION or ORP controller, is in sequence to the pH function. Only when the pH preset
value is achieved and maintained, is the secondary function activated. Whenever the pH value drifts from the preset point, the
secondary function is halted and the pH adjustment made before the secondary function resumes. Application examples include
Heavy Metal Precipitation
CHEMICAL SAVINGS
Utilizing an automated REAGENT CONTROL SYSTEM typically reduces chemical usage from 20% to 50% while at the same time
providing real-time discharge compliance.
PACKAGED SYSTEMS
Packaged systems are available for all applications which call for measurements of, and responses to, the oxidation/reduction
potential (ORP), ionic activity and/or pH values in solutions. The components, selected for each specific application, are housed in an
environmental enclosure which provides protection to NEMA 12 standards
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