1, The main chip by American Maxim original SOC energy metering chip, built-in 22 bit sigma delta analog-to-digital converter and a high precision voltage reference and 32-bit computing engine with differential input stage, the instrument in 2000:1 current range, high precision of 0.1%, which also has a digital temperature compensation, phase compensation function to ensure the instrument in large temperature difference and high harmonic content of environmental work. Industrial grade technical standards, to ensure the normal operation of the instrument at -20 ~+80.
2, Memory data using a nonvolatile ferroelectric memory (FRAM), erase and write times up to one trillion, almost can be considered infinite times erasure, and in power down after data can still be preserved for 100 years.
3, The American PI TNY series power chip, combined with the reasonable design of the transformer, optocoupler feedback circuit, the common and differential mode filter circuit, protection circuit and reasonable circuit board layout to ensure the stability of the power supply and meet the requirements of electromagnetic compatibility (EMC) design. Kingboard copper clad laminate A-grade plate
4, A circuit board, which has high temperature resistance, thermal shock resistance, insulation is good and so on the characteristic, can ensure the normal use of the instrument in harsh environments.
5, The use of ABS resin shell material, its impact resistance, heat resistance, low temperature resistance, chemical resistance, but also
with product size stability (so that the shell is not easy deformation), good surface gloss, etc.. Electrical insulation of ABS plastics
Excellent, and hardly influenced by temperature, humidity, and frequency.
6, The use of small resistance, pin spacing (6.35/5.08mm) of the terminal, to ensure the performance of the guide, the absolute stability of the isolation voltage, and the use of terminals are UL/CE and other international standards of safety certification.