Transformer oil analysis Archive - Page 2 of 2 - WGM

Karl Fischer Water Content Determination | KF-750

Karl Fischer Titration KF-750 | Determination of the water content: Karl Fischer Titration has its place in every laboratory. Karl Fischer Titration KF-750 The KF-750 is a coulometric titrator. The water content and the water content determination according to Karl Fischer Titration impresses with its very good accuracy. With this KF titrator, nothing can actually go wrong when determining the water content according to Karl Fischer. The display, which is large and easy to read, shows every step in the process in a dialog. The pre-parameterized methods thus additionally facilitate the work. In addition, the versatility of the two KF titrators makes the instruments efficient and easy to operate. The KF measuring station is suitable for almost all areas such as the pharmaceutical, chemical, food or petroleum industries.

The coulometric KF titrator is the ideal instrument for determining even the lowest water content in samples. In the coulometry of a titration solution, the determination of the concentration titer is not necessary, making it easier to operate than in volumetric titration. Many experienced analysts still feel the smell of pyridine in their nose with horror when they hear the name Karl Fischer. However, modern reagents and easy-to-operate analytical instruments cleaned up thoroughly with such ideas. Today, coulometric and volumetric Karl Fischer titrators allow practically all applications to be performed simply, quickly and accurately. Because of its selectivity and accuracy, Karl Fischer titration has become the most important method for water and moisture determination. With the KF-750, titration can also be followed “live” in the form of a measurement curve. At the touch of a button, it is possible to switch between classic and graphical display.

We offer you advice on the topics of: Determination of water content | Karl Fischer Titration | Karl Fischer Method

Karl Fischer Water Determination | KF-7751 | Water Content

Water Determination | KF 7751 | Oil analysis

Karl Fischer Titration KF-7751 | Determination of Water Content – The Karl Fischer Titrator KF-7751 is a generalist when it comes to potentiometric and volumetric titration. As an universal titrator, the KF-7751 offers more application possibilities than the KF-700. In practice, there are differences between coulometric and potentiometric or volumetric titration. After switching on the instrument, the Karl Fischer Titrator starts working immediately, with the default settings starting in the background. The KF titrator has several interfaces for data communication. It is possible to operate an analytical balance via the interface to the KF titrator. To connect a printer, use the USB ports of the device. Karl Fischer titration has also become established for transformer oils for determining the water content in the oil or the water content. The Karl Fischer Titrator can be cleaned with a soft cloth and water using normal household detergent.

General properties: Brilliant TFT display, which can be read even from the side. Exchangeable caps with storage of all relevant cap and reagent data in the cap. Unlimited communication via up to two USB-A, one USB-B, one LAN and two RS232 interfaces. Storage of results as PDF and CSV on USB stick or network.

Preinstalled standard methods. Special features of the KF-7751: Wireless electrode recognition for ID electrodes for highest security during measurement and calibration. High-resolution inputs for pH/mV electrodes and temperature measurements for pH, ISE, redox titrations. Ideal for non-aqueous titrations such as acid and base number in oils. Measuring input for polarizable electrodes. Linear and dynamic titration to inflection points (equivalence points) and titrations to end point. pH Stat titrations. Volumetric KF titration.

We offer you advice on the following topics: Determination of water content | Karl Fischer Titration | Karl Fischer method

Force Tensiometer | Digital Tensiometer

Versatile Functions for Precise Tension Measurements

The Force Tensiometer provides a modern and reliable method for the precise determination of surface wetting. By measuring the tensile force generated when immersing a ring or plate, the device delivers accurate results. Two well-established methods are available for determining surface and interfacial tension between two media: the Du-Noüy ring method and the Wilhelmy plate method.

The digitally controlled Sigma 200 Tensiometer performs these measurements fully automatically. With a single button press, the process starts, ensuring a fast and straightforward operation. This user-friendly design not only saves time but also ensures precise and reproducible results. In addition to tension measurements, the Tensiometer allows for the measurement of liquid density, further enhancing its versatility.

Comfortable Data Collection and Precise Quality Analysis

The Tensiometer operates as a standalone device, equipped with a motorized table that enables highly precise positioning of the sample vessel. During measurement, the Du-Noüy ring immerses in the sample, and the device captures the forces generated. The motorized sample table gradually moves downward, measuring the forces directly on the ring or plate lamella. The integrated display immediately shows the measurement values, enabling quick, straightforward data interpretation.

One particularly valuable feature of the digital Tensiometer is its capability to analyze the interfacial tension between oil and water. The ring method provides early indications of the oil aging process, which plays a key role in quality monitoring. ASTM Standard D971-99 2012 describes and standardizes this method for interfacial tension measurement. This makes the digital Tensiometer an essential instrument for quality control in numerous industries. In the chemical and food industries, it meets the highest standards of accuracy, speed, and efficiency, ensuring continuous quality assurance.

We will be happy to advise you on the following topics: Force Tensiometer | Du-Noüy-Ring | Density.

Corrosive Sulphur | CS100 | Corrosive Sulphur Kit

The CS100 Corrosive Sulphur Kit provides a practical and cost-effective alternative to expensive laboratory tests. Its purpose is to detect corrosive copper sulphide deposits accurately. These deposits frequently cause multiple issues, which often lead to transformer failures. Standard inspections rarely reveal these deposits, as technicians must unwind copper wire and de-oil the paper to see the shiny sulphide deposits clearly. Usually, copper wires display dark or multicolored surfaces, and their discoloration can vary greatly along the entire length of the conductor. Until recently, costly laboratory tests were the only reliable method for detecting corrosive sulfur in transformer oil.

Sulfur exists in transformer oil in different forms and various compounds. Copper sulfides can appear with very diverse characteristics. Because of this, technicians suspect that undetected copper sulfides likely cause numerous malfunctions in transformers and reactors. The portable CS100 Kit offers a rapid, convenient, and affordable testing option.

Common copper corrosion tests refer to established procedures, such as ASTM D1275 Method B and IEC 62535 (the CCD test).

The IEC 62535 procedure, known as the CCD test and formerly named Cigre A2.32.TF01, tests copper conductors by accelerated oxidation at high temperatures. During this process, technicians wrap copper conductors in kraft paper and then perform a visual inspection. This step aims to identify corrosive sulfur compounds, which could contaminate the cellulose insulation with copper sulphide.

The ASTM D1275 Method B also uses accelerated oxidation, but on an electrolytic copper strip at 150°C for 48 hours. Afterward, a visual assessment checks for sulfur compounds that might contaminate copper surfaces. This method provides additional insights, allowing for a more comprehensive understanding of copper contamination risks.

We offer you advice on the following topics: Corrosive sulphur | Insulating Oil | Transformer oil

Mobile Particle Counter | PZMG 100

The PZMG100 is a mobile particle counter which can be used to quickly and easily check oil cleanliness and oil condition in hydraulic and lubrication systems during a service call. Samples can be taken directly via a pressure line or via the integrated pump. A measurement can be performed manually or automatically at a predefined time interval. Portable particle counters are preferably used for the on-site analysis of operating oils in hydraulic systems. Precise measurement of particle shapes and particle sizes in different versions. The mobile particle counter cleans the oil and measures its quality. High-quality particle counters from WGM Support for particle measurement during maintenance with the possibility of flow visualization.

We offer you advice on the following topics: Mobile particle counter | Operating oils | Hydraulic oil

PPC Lab Particle Counter – Portable Particle Counter with Lab Quality

This PPC Lab particle counter is suitable for both mobile and stationary use. The measurement results are output in the common purity classes ISO 4406; NAS 1638; SAE AS 4059; GJB 420; GOST 17216. Thanks to the 32-bit high-performance control unit, flexible measurements and simultaneous data storage of different measuring points are possible. The integrated printer outputs the measurement results on paper directly on site. The dialog-oriented setting menu of the PPC Lab allows the display in different languages (German, English, French, Spanish, Portuguese, Russian, Dutch, Chinese and Finnish). PPC Lab’s modern, technically advanced components, including the volumetric sensor measuring cell, provide high resolution and measuring accuracy. All particles are detected, counted and measured by the sensor. Up to 32 freely selectable size channels display the particle number and particle size distribution.