I. Overview
This product is a new generation of digital intelligent electrical measuring instrument that adopts the latest international electronic measurement technology, with high-speed signal processors and microprocessors as the core.  
It has functions such as programmable measurement, programmable display, programmable digital communication, programmable transmission output, programmable measurement alarm, and power output.  
It does not contain adjustable potentiometers or other mechanical components internally, which greatly improves its reliability and has the characteristics of long-term stable operation, accurate and convenient readings.  
The strict EMI and EMC design enables it to adapt to strong interference on-site environments without affecting external equipment.  
In addition to accurately and quickly measuring various electrical parameters, users can also choose additional functions such as transmission, communication, and alarm according to the usage environment. Effective transmission of information and data between Modicon programmable logic controllers, UTUSCADA systems, DCS systems, or nearby systems compatible with ModBus can be achieved through additional features.  
The standard configuration for data communication function is the ModBus RTU communication protocol PS485 communication interface with optoelectronic isolation, and users can also choose the RS232 communication interface.  
The standard configuration for analog transmission is DC4-20mA output, and users can also choose its output if needed.

2、 Naming significance


3、 General indicators