Founded in 1945, WTW has provided outstanding leadership in the design and production of superior quality water testing instrumentation world-wide for over 55 years. WTW is proud to offer the World's broadest and most highly accepted product lines.

WTW - The World of On-Line Instrumentation

Dissolved Oxygen Sensors

The right choice of measuring technology for dissolved oxygen is of essential importance for the performance of the wastewater plant. WTW offers two innovative and reliable options - optical sensors and electrochemical sensors. (Download)
- FDO 700 IQ (fluorescence D.O. monitoring)
- TriOxmatic Sensors (electrochemical D.O. sensor)

pH/ORP Measurement

pH is one of the most important analysis parameters measures throughout the water, wastewater, and many-process industries. WTW's technical expertise and experience in this field are the reasons that their on-line pH instruments are recognized for performance, reliability, and quality. (Download)
- SensoLyt ph/ORP Sensor Systems
- SensoLyt Combination Electrodes
- SensoLyt Sensor Assemblies
- InTrac Valve Assemblies
- XEROLYT Combination pH Electrode

Conductivity Measurement

Conductivity is a measure of the level of ion concentration of a solution, and therefore, a measure of the purity of potable water. For almost 60 years, WTW has been one of the leading manufacturers of precision conductivity measurement systems, setting new standards with innovative sensor technology. WTW products meet the most stringent requirements set by industry for continuous on-line analysis instruments. (Download)
- Tetracon 700 IQ
- TetraCon 700
- TetraCon 325
- TetraCon DU/T
- LRD 01
- LRD 325
- LR 325/01
- LR 325/001

Turbidity and Suspended Solids

Smell, taste, and turbidity are the most important indicators for the quality of potable water. The online-sensors from WTW are precisely factory calibrated with a "multi-point" calibration. The calibration is very stable - no further calibration is needed. With WTW's patent pending ultrasound cleaning system, low-maintenance and long-term reliability are guaranteed. (Download)
- Turbidity Sensor VisoTurb 700 IQ
- Suspended Solids Sensor ViSolid 700 IQ

Nitrogen

Besides the common measuring of ammonium and nitrate using an analyzer, for years WTW has been offering measuring of ammonium and nitrate based on ionselective measuring (ISE.) (Download)
- Varion Plus 700 IQ
- AmmoLyt Plus
- TresCon OA 110
- NitraLyt Plus
- NitraVis System
- TresCon ON 210/OS 210
- TresCon ON 510

Phosphate

Increases is phosphate concentration can cause increased growth of algae and cause oxygen depletion. With a continous monitor phosphorus compound analyzer, water treatment plants can realize a significant cost savings. (Download)
- TresCon OP 210
- TetraCon OP 510

Carbon

The main task of a waste water treatment plant is to reduce the total organic load of waste water in addition to all the progress made in nitrogen and phosphate elimination. Organic compounds consist mainly of the elements carbon and hydrogen. The most important measuring points of waste water treatment plants are the inlet and outlet. (Download)
- CarboVis/NiCaVis System

Monitors

Ease of use and maximum operation safety were the basic design criteria for the development of the EcoLine monitors. As a result of the logical further development of the successful EMC concept, WTW has also been able to make these advantages available to customers at an attractive price. (Download)
- EcoLine Oxi 170/QuadroLine Oxi 296
- EcoLine pH 170/QuadroLine pH 296
- EcoLine LF 170/QuadroLine LF 296

IQ SENSOR NET

WTW provides IQ Systems for the entire range of online intrumentation. One system for all parameters enables flexible and praxis orientated solutions. Fail-safe digital sensors guarantee ideal process monitoring with increased system stability. Plug and play connections provide easy replacement of existing analog measuring stations; save money through plain and easy installation. (Download)
- System 2020 XT
- System 182

Analyzers

As the need for higher quality measurements in water and wastewater plants increases so does the complexity and degree of automation. Practical and maintenance-free instruments to continuouls ymonitor these processes requires that those instruments also be rugged and efficient. (Download)
- TresCon
- TresCon Uno

Sample Preparation

Add PurCon sample preparation to WTW's TresCon analyzer and a perfectly matching complete system creates the best possible measuring results even under the most difficult conditions. (Download)
- PurCon
- PurCon IS

Sampling

Sampling is an important factor for the complaince with required regualtions and efficient operation. Absolutely reliable provision of representative samples is extremely important, as they provide reliable and consistent assessment of contents and water properties. WTW has both stationary and portable samplers. (Download)
- PB 8
- PB 150-2
- PB 150-SE
- PB 13
- PB 17
- PB 25 S/PB 25 S/24

Accessories

For optimal configuration of the monitoring station, the instruments are supplemented by an extensive range of mechanical installation, assembly aids, and useful accessories. These functional and practical tools provide the user with tailor-made and well thought-out solutions for almost every application. (Download)
- Junction Boxes
- Sensor Extensions
- Sensor Holders
- Mounting Hardware
- Flow-thru Adaptors and Flow-thru Vessels
- Retractable Armatures
- Cleaning Systems

Measuring Stations

WTW manufactures fully instrumented, walk-in sheltered control stations for a variety of water and wastewater applications. A variety of mobile and portable monitoring and control stations can be conceptually designed and engineered to optimally meet the customers' requirements, with particular regard to the situation at the project site and the expected operating conditions. (Download)

Design & Specifications

Under Construction.