Hui Yi Electronics Supply tachometer / line speed table intelligent tachometer frequency table can be set to override the number of ..

HY19 series single display intelligent digital electrical measuring instruments, for the power grid and automation control system for current and current. Measurement and display voltage, power (active and reactive) frequency, power factor and other electrical parameters. With intuitive display, high accuracy, stability, and anti-shake strong advantages, CPU digital processing, communication really effective measure, the keyboard can be set ratio. Optional additional specific functions: 1. control with relay output can be set to an upper limit alarm, lower limit alarm or lower limit alarm. 2 with analog transmit signal output (0-20mA or 4-20mA, etc.);