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Product Manuals from Lakewood Instruments


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NexSys® Control System

The NexSys® control system is the latest in a long line of reliable, easy to use controllers from Lakewood Instruments. The NexSys® control system uses the latest in microprocessor technology with a 5.7” Color Touch Screen interface for a high level of application flexibility.

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101 Series Conductivity Cooling Tower Controller

The Model 101 Series are basic bleed-and-feed conductivity cooling tower controllers. These controllers are also ideal for closed-loop systems when configured with reverse setpoint. The basic units are available with or without digital displays and chemical feed limit timers. Other options are flow switches, custom ranges and more. All 101 Series Controllers have a simulator button for testing the sensor input.

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140 Cooling Tower Controller

The Model 140 is a microprocessor technology based, menu driven, controller designed for use in cooling towers. The Model 140 provides for conductivity tracking and control, flow monitoring and chemical injection. The Model 140 is NTL/CSA, and CE approved. A digital display screen, multiple inputs, and an intuitive menu characterize this new technology. It’s a combination of reliability, accuracy, security and simplicity.

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1520/30e Water Treatment Controller For Use In Cooling Towers

The Model 1520/30e is a microprocessor technology based, menu driven, water treatment controller designed for use in cooling towers, process, and condensate systems. The Model 1520/30e provides for pH or ORP tracking and control, flow monitoring and chemical injection. The Model 1520/30e is NTL/CSA, and CE approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. It’s a combination of reliability, accuracy, security and simplicity.

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1575e Water Treatment Controller For Use In Cooling Towers

The Model 1575e is a microprocessor technology based, menu driven, water treatment controller designed for use in cooling towers, chill loops, boilers and condensate systems. The Model 1575e provides for conductivity tracking and control, flow monitoring and chemical injection. The Model 1575e can be operated with or without the use of the conductivity input. The Model 1575e is NTL/CSA, and CE approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. It’s a combination of reliability, accuracy, security and simplicity.

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2175e Conductivity Water Treatment Controller For Use In CoolingTowers

The Model 2175e is a LONWORKS Technology, microprocessor based, menu driven, conductivity water treatment controller designed for use in cooling towers with expansion capability in a NEMA 4X enclosure. The Model 2175e provides for conductivity tracking and control, flow monitoring and chemical injection. The Model 2175e is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2175Pe Conductivity Water Treatment Controller For Use In Process Applications

The Model 2175Pe is a LONWORKS Technology, microprocessor based, menu driven, conductivity water treatment controller designed for use in process applications with expansion capability in a NEMA 4X enclosure. The Model 2175Pe provides for conductivity tracking and control, flow monitoring and chemical injection. The Model 2175Pe is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2250e Conductivity Water Treatment Controller For Use In Boilers

The Model 2250e is a LONWORKS Technology, microprocessor based, menu driven, conductivity water treatment controller designed for use in boilers with expansion capabilities in a NEMA 4X enclosure. The Model 2250e provides for conductivity tracking and control, flow monitoring and chemical injection. The Model 2250e is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2255e Conductivity Water Treatment Controller For Use In Boilers

The Model 2255e is a LONWORKS Technology, microprocessor based, menu driven, conductivity water treatment controller designed for use in boilers with expansion capabilities in a NEMA 4X enclosure. The Model 2255e provides for conductivity tracking and control in multiple boilers, flow monitoring and chemical injection. The Model 2255e is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2255SE Conductivity Water Treatment Controller For Use In Boilers

The Model 2255SE is a LONWORKS Technology, microprocessor based, menu driven, conductivity water treatment controller designed for use in boilers with expansion capabilities. The Model 2255 provides for conductivity tracking and control in multiple boilers, flow monitoring and chemical injection all in a single enclosure. The Model 2255 is UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2330e ORP Water Treatment Controller For Use In Cooling Towers

The Model 2330e is a LONWORKS Technology, microprocessor based, menu driven, ORP water treatment controller designed for use in cooling towers with expansion capabilities in a NEMA 4X enclosure. The Model 2330e provides for ORP tracking and control, flow monitoring and chemical injection. The Model 2330e is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2330Pe ORP Water Treatment Controller For Use In Process Applications

The Model 2330Pe is a LONWORKS Technology, microprocessor based, menu driven, ORP water treatment controller designed for use in process applications with expansion capabilities in a NEMA 4X enclosure. The Model 2330Pe provides for ORP tracking and control, flow monitoring and chemical injection. The Model 2330Pe is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2350e pH Water Treatment Controller For Use In Cooling Towers

The Model 2350e is a LONWORKS Technology, microprocessor based, menu driven, pH water treatment controller designed for use in cooling towers with expansion capabilities in a NEMA 4X enclosure. The Model 2350e provides for pH tracking and control, flow monitoring and chemical injection. The Model 2350e is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2350Pe pH Water Treatment Controller For Use In Process Applications

The Model 2350Pe is a LONWORKS Technology, microprocessor based, menu driven, pH water treatment controller designed for use in process applications with expansion capabilities in a NEMA 4X enclosure. The Model 2350Pe provides for pH tracking and control, flow monitoring and chemical injection. The Model 2350Pe is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2412e pH And Conductivity Water Treatment Controller For Use In Cooling Towers

The Model 2412e is a LONWORKS Technology, microprocessor based, menu driven, pH and conductivity water treatment controller designed for use in cooling towers with expansion capabilities in a NEMA 4X enclosure. The Model 2412e provides for pH and conductivity tracking and control, flow monitoring and chemical injection. The Model 2412e is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2412Pe pH And Conductivity Water Treatment Controller For Use In Process Applications

The Model 2412Pe is a LONWORKS Technology, microprocessor based, menu driven, pH and conductivity water treatment controller designed for use in process applications with expansion capabilities in a NEMA 4X enclosure. The Model 2412Pe provides for pH and conductivity tracking and control, flow monitoring and chemical injection. The Model 2412Pe is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2430e ORP And Conductivity Water Treatment Controller For Use In Cooling Towers

The Model 2430e is a LONWORKS Technology, microprocessor based, menu driven, ORP and conductivity water treatment controller designed for use in cooling towers with expansion capabilities in a NEMA 4X enclosure. The Model 2430e provides for ORP and conductivity tracking and control, flow monitoring and chemical injection. The Model 2430e is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2430Pe ORP And Conductivity Water Treatment Controller For Use In Process Applications

The Model 2430Pe is a LONWORKS Technology, microprocessor based, menu driven, ORP and conductivity water treatment controller designed for use in process applications with expansion capabilities in a NEMA 4X enclosure. The Model 2430Pe provides for ORP and conductivity tracking and control, flow monitoring and chemical injection. The Model 2430Pe is CSA ANSI/UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. This controller can easily be upgraded in the field. It’s a combination of reliability, accuracy, security and simplicity.

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2450 pH Or ORP Conductivity Monitor

The Model 2450 is a microprocessor based, menu driven, pH or ORP and conductivity monitor designed for use in reverse osmosis machines. The Model 2450 provides for pH or ORP and conductivity tracking and control, flow monitoring and chemical injection. The Model 2450 is UL approved. A large illuminated graphics screen, multiple inputs, and an intuitive menu characterize this new technology. It’s a combination of reliability, accuracy, security and simplicity.

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267 Conductivity Monitor And Controller

The Model 267 is a conductivity monitor and controller designed for use in condensate systems or process water applications where the conductivity range is less than 100 µS. The standard range is 0-100µS. Custom ranges are available in 0-25µS and 0-50µS. The conductivity sensor comes with a ¾” MNPT compression fitting and will operate at 392°F and 70 psi.

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491-495 VersaMeter Series Flow Totalizers, Flow Rate Indicators, Flow Controllers

The VersaMeter line is a versatile family of flow totalizers, flow rate indicators, and flow controllers for a broad range of industrial and water treatment applications. All models are provided in dust-tight, water-tight, NEMA 4X enclosures.

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520 Series pH Electrode

Lakewood Instruments uses the latest technology in pH electrode construction. Lakewood’s differential electrode design prevents ground loop problems and excessive dependence on the reference electrode connection to the process stream for stable readings. With two different body materials, three mounting options, and four different glass electrodes, Lakewood Instruments can supply pH sensors to fit your needs.

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530 Series ORP Electrode

Lakewood Instruments uses the latest technology in ORP electrode construction. Lakewood’s differential electrode design prevents ground loop problems and excessive dependence on the reference electrode connection to the process stream for stable readings. With two different body materials, three mounting options, Lakewood Instruments can supply ORP sensors to fit your needs.

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540 Series Conductivity Sensor

The Model 540 Conductivity Sensor series offers a reliable and easy-to-use tool for measuring high-purity water or condensate return. Available configured as in-line, retractable or submersible, the Model 540 provides accurate input for monitoring or control of total dissolved solids in the 1 - 10 µS or 10 - 100 µS conductivity ranges. These sturdy sensors can withstand temperatures up to 200°C (392°F) and will serve for a long period of time.

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543 Series Conductivity Sensor

The Model 543 Sensor series offers a reliable and easy-to-use tool for measuring the conductivity of water. Available configured as in-line, retractable or submersible, the Model 543 provides accurate input for monitoring or control of total dissolved solids in the 10 - 500 µS, 100 - 1000 µS, or 500 – 100,000 µS conductivity ranges. These sturdy sensors can withstand temperatures up to 200°C (392°F) and will serve for a long period of time.

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LRWS Remote Windows Software

Lakewood Remote Windows Software (LRWS) is a Windows-based program that accesses all the features of Lakewood Instruments 2000 series controllers remotely. Communication is direct-connect via RS-232 or remotely over phone lines with a modem. Lakewood Remote allows access to multiple controllers, phone numbers, and passwords.

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N420I Input Node

The 4-20 mA Input Node (N420I) is a LONWORKS Technology-based node. It contains its own micro-controller which communicates with other LONWORKS nodes on a twisted-pair communication wire. The N420I is a node which may be added to a Lakewood Instruments 2000 series controller to add four channels of 4-20 mA input.

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NCON Conductivity Node

The Conductivity Node (NCON) is a LONWORKS Technology-based node. It contains its own micro-controller which communicates with other LONWORKS nodes on a twisted-pair communication wire. The NCON is a node which may be added to a Lakewood Instruments 2000 series controller to add a conductivity sensor input.

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NDIG Digital Input Node

The Digital Input Node (NDIG) is a LONWORKS Technology-based node. It contains its own micro-controller which communicates with other LONWORKS nodes on a twisted-pair communication wire. The NDIG is a node which may be added to a Lakewood Instruments 2000 series controller to add four channels of digital input to the controller.

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NpH pH/ORP Node

The pH/ORP Node (NpH) is a LONWORKS Technology-based node. It contains its own micro-controller which communicates with other LONWORKS nodes on a twisted-pair communication wire. The NpH is a node which may be added to a Lakewood Instruments 2000 series controller to add either a pH or an ORP sensor input to the controller.

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NRLY Relay Node

The Relay Node (NRLY) is a LONWORKS Technology-based node. It contains its own micro-controller which communicates with other LONWORKS nodes on a twisted-pair communication wire. The NRLY is a node which may be added to a Lakewood Instruments 2000 series controller to add four additional relay outputs.