Take into account all aspects of the application

All aspects of an application must be taken into account for the selection of the transducer and system design, with particular attention to the following:

• Electrical requirements, including power supply requirements, peak measurement, response time, di/dt and dv/dt.
• Mechanical requirements, including aperture size, overall dimensions, mass, materials, mounting and vibration.
• Thermal conditions, including current profile versus time, maximum RMS measurement, thermal resistances and cooling.
• Environmental conditions, including vibration, operating temperature range and proximity of other conductors or magnetic fields.

Identify potentially critical elements

Some applications have a higher level of complexity and combine several potentially critical elements such as:

• electromagnetic interference
• significant common mode voltage transients (dv/dt)
•  mechanical disturbances (vibration, shock, etc.)
• special isolation or partial discharge requirements
• compliance with specific standards, etc.

Perform tests

Obviously the best scenario is to perform tests in the specific application environment. If this is not feasible, please provide LEM with a diagram of your installation and a detailed description of the transducer operating conditions (e.g. description of the environmental conditions, graph of the waveforms to be measured, nearby potentially disturbing elements such as inductors, current carrying conductors and the presence of magnetic materials or the location of other transducers).