The DDS238-4 W energy meter comes in two versions one with RS485 communication and one without providing flexible solutions for different monitoring needs This advanced meter offers password protection to secure settings and prevent unauthorized access while its time relay switch function enables scheduled power control for automation The countdown feature allows users to set delayed shutdowns making it ideal for energy management applications
With bidirectional energy measurement capability the meter accurately tracks both imported consumed power and exported generated power displaying them separately which is particularly useful for solar energy systems Users can view realtime active power consumption and clear accumulated kWh data when needed The prepaid kWh function supports modern energy billing systems while multiple protection features safeguard against overcurrent overvoltage undervoltage and excessive power draw
The RS485 version supports MODBUS-RTU protocol with adjustable baud rates from 1200 to 9600bps defaulting to 9600bps for reliable data communication The meter operates across a wide voltage range of 90-300V AC accommodating various electrical systems worldwide with rated frequencies of 50Hz or 60Hz Its 5(60)A current rating provides broad measurement range capable of detecting currents as low as 20mA
Designed for accuracy the meter achieves Class 1 precision in energy measurement with a pulse output of 1600imp/kWh for external monitoring applications The robust construction ensures reliable operation in challenging environments with an operating temperature range from -25℃ to 70℃ making it suitable for both indoor and outdoor installations in diverse climatic conditions
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