Frequently Asked Questions
What sensors are compatible with the ME440?
The ME440 supports 333mV CTs, 320mV current clamps, and Rogowski coils via BNC terminals.
How long can the device record data?
With its 32GB memory and a 1-minute recording interval, it can store data for approximately 12 years.
What are the power supply options?
The device is powered by two 18650 lithium batteries providing about 10 hours of work time, or a 5V DC external adaptor.
Does the ME440 support remote communication?
Yes, it supports MODBUS TCP communication via a standard RJ45 port.
What is the measurement accuracy for power?
Active and Apparent power meet IEC62053-22 Class 0.5 standards.
Can it measure harmonics?
Yes, it can measure up to the 51st harmonic for both voltage and current.
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