Leading Word: With the rapid development of electronic technology, card power meters have obvious advantages over previous mechanical power meters. For example, anti-theft capability is strong, measurement accuracy is high, load characteristics are good, error curve is flat, power factor compensation performance is strong, and its power consumption is low. Its main features in daily life are as follows:

(1) Manual meter reading is not required, and the digital tube displays the remaining power and meter internal parameter information, which is conducive to modern management. Stable, reliable, long-term work without adjustment.

(2) It fully embodies the commodity attributes of electricity. After purchasing electricity, the customer can purchase electricity and electricity in a planned manner according to his own actual needs. He will not delay fees due to arrears and increase unnecessary expenses.

(3) All-electronic design, built-in imported special chip, accuracy is not affected by frequency, temperature, voltage, high harmonics. Using SMT technology, optimized circuit design, the whole machine does not need to adjust the circuit after leaving the factory. At the same time, the low-power design can also reduce the power line loss.

(4) Large overload capacity: Inductive power meters use coils to work. In order to ensure their measurement accuracy, they can generally only overload 4 times; while electronic multi-function meters can reach 6 to 10 times overload.

(5) Data protection: Data protection adopts all-solid-state integrated circuit technology, and no battery is required. Data can be stored for more than 10 years after power off.

(6) Anti-stealing function: It adopts bi-directional energy measurement integrated circuit and anti-stealing end cap combination.