RS485 bus two-way three-phase meter. Maximum current 3x80A. Standby loss 0,8W at L1 and only 0,5W at L2 and L3 each. Modulair device for DIN-EN 60715 TH35 rail mounting in distribution cabinets with IP51 protection class. 4 modules = 70mm wide and 58mm deep. Accuracy class B (1%). With RS485 interface. It measures active energy by means of the current between input and output. The internal power consumption of 0,8W or 0,5W active power per path is neither metered nor indicated. The active energy is added depending on the sign. Positive power in the meter means energy consumption, negative power means energy delivery. The energy measurement is balanced. If the energy consumption (P positive) is greater than the energy supply (P negative), the meter reading T arrow right is increased. If the energy supply is greater than the energy consumption, the meter reading T arrow left is increased. Energy consumption is shown with a right arrow and energy supply is shown with a left arrow above the active bar in the display. 1, 2 or 3 phase conductors with max. currents up to 80A can be connected. The inrush current is 40mA. The terminals L1 and N must always be connected. Connection via a FBA14 to the Eltako RS485 bus with a 2-wire shielded bus cable (telephone cable). The meter reading and the momentary power are transferred to the bus – e.g. for transfer to an external computer or a Professional Smart Home controller – and is also transferred to the wireless network via the FAM14. For this it is necessary that a device address is assigned from the wireless antenna module FAM14, according to the operating instructions. Energy consumption and energy supply values are stored in non-volatile memory and are displayed again immediately after a power failure. The 7 segment LC display is also legible twice within a period of 2 weeks without power supply. Power consumption is indicated using a LED next to the display flashing 1000 times per KWh. On the right next to the display are the keys MODE and SELECT. Press them to scroll through the menu. First the background lighting switches on. Then the total active energy per consumption and delivery, the active energy of the resettable memory consumption and delivery as well as the instantaneous power, voltage and current values for each phase conductor can be displayed. Error message: If a phase connection is missing, the corresponding phase is shown on the display.
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