AC current monitoring device with digital output.
Depending on the version, the input side can be used to measure single-phase AC currents (from 0.1 A to 60 A). Measurements use the RMS (transformer based) or TRMS (Hall sensor) methods. Digitally switched outputs are available on the output side.
Converters with transformer-based couplings are used for taking cost-effective measurements of sinusoidal currents (50/60 Hz). The current being measured flows directly through the primary winding of a measuring transformer. The secondary winding supplies the electronic measuring system with a proportional current signal. Due to the power loss that occurs, this type of measurement is limited to currents not greater than 10 A. The effective value (RMS) of the current can be measured using this method.
Hall sensors are used to carry out real-effective (TRMS) measurements on current.
This method measures the magnetic flux B which is then converted into a proportional voltage, amplified and processed into a standard signal. Hall sensor measurements are ideal for measuring large DC and AC currents with frequencies up to 1 kHz.
Start-up currents from motors and current peaks cannot harm the equipment.