Measurement and control


In this sector, MPT represents the interests and products of WALCHEM Corporation in Holliston, Massachusetts (USA). WALCHEM is a leading manufacturer of sensor technology and controllers for the surface technology and for the water treatment technology, including pH-, redox and conductivity controllers as well as special controllers for the cooling-water and boiler water conditioning. Besides the measuring transducer, these controllers include also a control program, adapted to the respective application.



Monitoring, alarming – control and telecontrol systems:


The W600 series offers a reliable, flexible and high-performance automation of your water treatment. The multichannel controllers with a large touchscreen display are highly versatile for cooling towers and boilers, for controlling pH / ORP / conductivity in the wastewater treatment and for controlling disinfection processes. Two general-purpose sensor inputs or up to four 4-20 mA inputs enable to perform various tasks. Six relay outputs or up to four analog outputs (4-20 mA) are available for directly connecting dosing pumps and actuators. Select between mechanical relays or optical-coupler outputs to proportionally control dosing pumps with contact input. Ready-to-use features enable a wide range of applications for each output and facilitate set-up.

Line charts of all measured values can be displayed. An integrated logging function makes for a complete documentation of the water treatment. W600 series controllers enable remote maintenance via the Internet.

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The W100 series is a premium choice among the entry level controllers for water treatment. These low-cost devices are very versatile – they may be used for cooling- and boiler water conditioning, for pH / ORP / conductivity control in the water treatment field and for controlling disinfection processes. A general-purpose sensor input ensures exceptional flexibility; one control may be used with nearly any kind of sensor. W100 controllers are available as wall-mounting boxes or in a ¼ format for switch panel mounting.

Plating Controllers

Controller for electroless nickel baths / Controller for electroless copper baths:


By default, WALCHEM’s WebMaster comes with sensors and data amplifiers for various physical values. The installed software can link the values to each other and assign them to the control parameters. Via telephone modem and Ethernet board, the user is provided with information such as alarm messages and off-limit conditions worldwide.

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Streaming-Current Detectors

Measuring and control technology for dosing liquid media in the chemical water treatment

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