31 Aug 2015
Measurement of electrical power
Instantaneous, mean, active, reactive and apparent electrical power, power factor, etc.
31 Aug 2015
Measuring soil resistivity
When it is possible to choose the location of the earth connection, resistivity measurement helps to qualify the soil and thus determine the place where the soil's resistivity will be the lowest optimization of construction costs).
31 Aug 2015
Multiple representations of a three-phase electrical signal
Qualistar+ power and energy analysers can be used to view the characteristics of a three-phase electrical network instantaneously.
31 Aug 2015
Processing of Scopix data in Recorder mode
Analysing the Recorder mode data measurements
For maintenance purposes, it can be useful to monitor a process over a longer period, ranging from ten minutes to several weeks, in order to qualify a problem which occurs at random or at considerable intervals. Data recording then proves a particularly useful tool, as the maintenance technician does not have to be present during this period because the instrument will store the data in its memory.
31 Aug 2015
RCD or circuit breaker diagnostics
Short-circuit or leakage current?
In an office building, there is an open-plan office containing twenty or so PC workstations and screens, a photocopier and several coffee-makers and electric kettles. These appliances sometimes operate simultaneously.The problem in this case involves the residual current device (RCD) circuit-breaker which is tripped randomly approximately once or twice a week.
31 Aug 2015
Synchronization testing and verification
Machine sequencing
In product conveyor installations, conveyor-belt lines and other transport systems such as those encountered in printing plants, synchronization errors may occur. This type of error interferes with correct system operation and may cause severe malfunctions between 2 consecutive lines or quality problems at the end of the conveyor.
