Measurement technology Archive - Page 4 of 8 - 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

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.

Oil Sampling Set | ÖLEK | Gas in Oil Analysis

Oil Sampling Set | OLEK | Transformer Oil analysis

The oil sampling set is used to take oil samples from electrical equipment such as transformers, converters or oil switches. When taking oil samples, make sure that the oil sample complies with the prescribed standard. A potential manipulation of the oil sample falsifies the analysis result. The big advantage of oil sampling with the Oil Sampling Set is that no outside air gets into the sample. The set ensures sampling according to the following standards: DIN EN 60567, IEC 567 and ASTM 3612, so the oil sample is ideally prepared for subsequent analysis in the laboratory. In order to avoid repairs and failures, the oil sample must be handled with care.

An early analysis of potential faults extends the service life of electrical equipment. Oil sampling is a crucial element in any oil analysis. Insulating oil analyses: These periodic tests are an important part of the maintenance of transformers for a safe energy supply. In the operational monitoring of oil-filled high-voltage equipment (transformers, instrument transformers, bushings, cables, etc..), decomposition gas analysis is becoming more and more a priority and an important part of the maintenance process. In case of electrical or thermal overload, decomposition gases are formed in the insulating oil, which can be analyzed.

Improper oil sampling or contamination of the test vessels can have a very large influence on the measured values of the individual test methods, so that completely wrong conclusions could be drawn about the quality of the insulating fluids. The oil syringes and aluminium containers must be rinsed with the liquid to be tested before taking the sample. Bottles made of brown glass or drawn aluminium are used as sample containers for insulating oils. Not only the sampling, but also the handling of the oil sample plays an important role.

We offer you advice on the topics of:
Oil sampling | Transformer Oil analysis | Insulating Oil testing

Micro Ohmmeter MOM2 | Micro-ohmmeter

The Micro Ohmmeter MOM2 can be used wherever a low resistance value has to be measured with high accuracy. The test system MOM2 was developed for a number of applications. The most common are contact resistance measurements of low, medium and high voltage switches as well as busbar connectors and other high current connections. If the contact resistance is too high, this leads to power loss and temperature rise, often causing serious problems.

To avoid these problems, the resistance must be checked at regular intervals. The Micro Ohmmeter MOM2 is designed to measure the resistance of circuit breaker contacts, busbar connectors and other high current connections. The main focus in product development was on safety, ease of use and versatility. The micro-ohmmeter can be used wherever a low resistance value has to be measured with high accuracy. MOM2 allows measurements according to the Dual Ground method. This means that the test object is grounded on both sides during the test, thus enabling a safer, faster and easier workflow. Robustness and low weight make MOM2 a hand-held device, ideally suited for on-site work, for example in switching stations.

The device is supplied with a robust rubber holster and is therefore particularly resistant. MOM2 is designed to last a full day of testing without recharging. It can store 190 test results and transfer the test data to a PC via Bluetooth. The MOM2 test system has been developed for a number of applications. The most common are contact resistance measurements of low, medium and high voltage switches as well as busbar connectors and other high current connections.

We offer you advice on the following topics: Micro Ohm Measurement | Low Ohm Measurement | Micro-ohmmeter

Insulation measuring instrument MIT2500 | Insulation measurement

Insulation measuring instrument MIT2500 – The insulation measuring instrument and continuity tester

MIT2500 is used for insulation resistance measurements requiring more than 1,000 V. MIT2500 offers six fixed test voltages of 50V, 100V, 250V, 500V, 1,000V and 2500V on the one hand and continuously variable test voltages between 50V and 2500V on the other. The output test voltage remains within two percent during the test. For power supply the MIT2500 has a battery compartment for six batteries and separate access to the fuses.

For the first time a handy device also offers the proven Guard technology. This eliminates surface leakage currents. This enables accurate measurements even when the insulator is very dirty and damp. Insulation testing up to 2.5 kV (new) and in a range of 200 GΩ with a hand instrument. The robust rubber housing corresponds to IP54. The insulation test voltage is feedback-controlled. This means that the test voltage keeps its voltage within the tolerance range between zero percent and + two percent. This now more stable test voltage reduces the risk of damage to the test objects due to larger voltage increases. The variable test voltages between 50V and 999V are set in steps of 1V. Between 1kV and 2.5 kV the test voltages are set in 10V steps.

This enables a total of 1,100 test voltages. The insulation measuring instrument MIT2500 has a newly designed housing and back cover as well as a battery compartment. It also has an integrated protective terminal to reduce leakage currents, which reduces accuracy at higher voltages. All instruments are molded for increased protection and have an IP54 weatherproof rating.

We offer you advice on the topics of: Insulation resistance | Insulation measurement | Insulation measuring instruments.

Device tester PAT400 | Electrical Equipment

The Device tester PAT400 are professional instrument testers for the complete testing of your mobile equipment according to DIN VDE 0701-0702 and DGUV regulation 3. After unplugging and transporting to another test location, your PAT400 starts with the unique quick start function – immediately in the same condition. This saves you a significant amount of time. Very useful is a Login-PIN with which settings of the “competent person (bP)” for “electrotechnically instructed persons (EuP)” can be pre-configured and cannot be changed by them. Furthermore, you can use an “expert mode” for accelerated test procedures according to DIN VDE 0701-0702 and DGUV regulation 3! Superfluous instructions of the device can be deactivated on request.

The instrument testers of the PAT400 series are industrial instrument testers for testing mobile electrical equipment according to the latest DIN VDE 0701-0702. Three variants, PAT410, PAT420 and PAT450, are available. The basic version PAT410 with database for up to 10.000 test results. The PAT-series are professional device testers according to DIN VDE 0701-0702 and DGUV regulation 3 for the complete testing of your portable electrical equipment. They inventory, test and document in unmatched speed. After unplugging and transporting to another measurement location, your Device tester PAT400 starts up again with the unique quick start function – immediately in the same condition. This saves you a significant amount of time. Very useful is a Login-PIN with which settings of the “competent person” can be pre-configured for “electrotechnically instructed persons” and cannot be changed by them.

We offer you advince on the following topics: VDE Device testers | DIN VDE 0701-0702 | DGUV Regulation 3