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| Reagent Control System |
| Updated 6/17/2008 |
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.
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.
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.
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
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.
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
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.
pH ELECTRODE
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
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
PRICING:
For a single controller unit (pH, ION, or ORP only) $1995.00*
*includes S/H within USA
For a dual controller unit (pH/Ion or pH/ORP) $2395.00 *
*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) $1995.00*
*includes S/H within USA
For a dual controller unit (pH/Ion or pH/ORP) $2395.00 *
*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