Early warning reminder: When the remaining power in the Three Phase Electric Meter is less than twice the "alarm power", the "alarm indicator" will flash (with an interval of 1 second) to remind the user to purchase electricity. At this time, if the user inserts a card to respond, "alarm The flashing interval of the indicator light is changed to 2 seconds, which can avoid the power failure warning.
The root mean square value of the sine wave voltage that the Digital Power Meter can withstand for a long time. Below this voltage, the absolute value of the measurement error of the power meter should be less than the value obtained by multiplying the relative error corresponding to the nominal accuracy level by the rated voltage.
Multifunctional, low-energy digital energy meters become the new favorite
The digital power meter is a high-precision digital virtual instrument suitable for measuring the power of 5~400Hz three-phase sinusoidal alternating current.
Three phase electric meter: three phase electric meter is suitable for measuring three-phase four-wire AC active energy with a rated frequency of 50Hz or 60Hz.
The following editor will introduce the difference between a three phase electric meter and a single phase electric meter.
