Eapl phase monitoring device model pmd, 01 v 2. 0 features 1. Led indication three led indications areprovided at the forefront panel to indicate the power, Relay and fault status. For fault indication of under voltage the led, Or phasereversal glows continuously until fault iscleared. If there happens to be the faultled, Unbalance condition flashes till the fault is cleared. During in case, Phase failure b phase fails, Ledindication would come on. In case of r or y phase failing, There will be no led indicationbecause supply to the unIt does not qualify as available. 2. Restart button this button functions as a tool for manuallyrestart the load after the fault condition ceases. 3. External restart terminals r1 & r2 providedon the front panel is crafted to use for automatic restartof load by keeping them permanently shorted potential free shorting . Alternatively, R1 & r2 can be connected to anormally open contact which when shortedexternally restarts the load.