Product informatie voor LINETRAXX® GM420

The loop monitor of the GM420 series is designed to monitor the resistance of PE conductor connections in AC systems and in de-energized systems. For the measurement of the resistance the extraneous voltage Uf between the terminals E and KE must not exceed AC 12 V. At voltages above AC 12 V only the voltage is measured. The ohmic resistance of the conductor loop and the existing extraneous AC voltage Uf will be indicated on the display. The currently measured value is continuously indicated on the LC display. If the measured resistance value increases above the set response value, the alarm will be activated and stored. Adjustable time delays allow installation-specific requirements to be considered.