pH 315i, pH 330i, pH 340i Robust Waterproof (IP 67) Large silicone keys WTW handheld pH meters are optimized for use on-site and field use, but can also be used in the laboratory. In particular the pH 340i, with its optional line power supply and serial interface, is suitable for applications in which precise measurements are required both in the laboratory and the field. WTW handheld pH meters are available in three ve…
The inoLab® benchtop meters of WTW, Weilheim, Germany, have been relaunched in April 2004. pH, DO, conductivity and multi-parameter instruments show not only a new colour but also enhanced functions and additionally, the family will have two new members, the new inoLab® pH/ION 735 and the high-performance inoLab® pH/ION/Conductivity 750 with two high-impedance inputs and an 8-pin socket for conductivity cells. So for almost a…
The OI Analytical CNSolution™ FS 3100 is a flexible, safe, high-throughput, multifunctional automated cyanide analyzer. It incorporates a single- or dual-channel analyzer, WinFLOW software, and a 90-position random access autosampler. The FS 3100 uses an innovative gas diffusion ligand-exchange procedure coupled with a highly-sensitive Expanded Range amperometric detector to measure available cyanide. With an added UV irradiat…
Eclipse Purge-and-Trap Sample Concentrator - The Gold Standard In Volatiles Analysis The Eclipse 4660 Purge-and-Trap Sample Concentrator processes samples for analysis of volatile organic compounds (VOCs) by gas chromatography (GC) or gas chromatography/mass spectrometry (GC/MS). Innovative, patented components within the Eclipse significantly improve sample processing steps of the purge-and-trap technique. A key technology is…
Biochemical oxygen demand (BOD) determination is still one of the most important parameters in water resource management. It can be used to evaluate the impact of biodegradable substances in waters and waster water. With its OxiTop ® systems, WTW offers a unique, modular and mercury-free instrument system. It is not only suitable for BOD determination, but also for measuring biodegradability and deple-tion.The advantages of Ox…
Complete packages for 6 or 12 simultaneous measurementsMeasurement using OxiTop ® is based on pressure measurement in a closed system: microorganisms in the sample consume the oxy-gen and form CO 2 . This is absorbed by NaOH, creating a vacuum which can be read directly as a measured value in mg/l BOD.The used sample volume regulates the amount of oxygen available for a complete BOD. Measurement ranges of up to 4,000 mg/l can…
Complete package for 6 or 12 simultaneous measurements – For a larger number of samples and with simple sample measurement OxiTop ® Control is the logical further development of the successful OxiTop ® system using software-controlled functions and infrared interface to communicate with a handy controller, the OC 100. This system enables the simultaneous and grouped start, management, storage and tracking of 100 measuring head…
common featuresSimultaneous sample management with option of grouping up to 100 OxiTop ® -C measuring heads.Data call-up of one parallel sample with statistical evaluation and as individual data.Automatic calculation and graphical display of BOD value.Data transfer even through glass doors.Protocol and documentation of data via Achat OC commu-nication program in combination with a PCGLP and AQS with inspection intervals for ca…
Instead of the display and keys, the OxiTop ® -C measuring head has an infrared interface with which it communicates with Controller OC 100 or OC 110. By "e;pointing"e; the controller at an OxiTop ® -C measuring head it can be identified and started, data can be called up or deleted and sampling progress can be displayed.Each measuring head has its own identification number; this means that manual identification of samples is…
Stirrers IS 6 and IS 12 have been specially developed for BOD measurement with the OxiTop ® system. Software-controlled speed regulation prevents the magnetic stirrer bar from getting caught or wobbling. The speed is selected so that an optimal gas exchange with the sample takes place. The stirrer is maintenance-free and non-wearing as it contains no moving parts. The IS 6-Var model has been specially developed for use wit…
