This manual introduces the use of YSI 556MPS multi-parameter water quality meter. The instrument can measure temperature, conductivity, salinity, dissolved oxygen, redox potential, pH and total dissolved solids.

TL100H universal inverter instruction manual, mainly introducing the product's functions and parameter settings

ED3100 series inverter is a new concept developed by Shenzhen Yi Driver Inverter Technology Co., Ltd. based on ED3000 series. It is a current vector inverter without speed sensor. It increases motor parameters self-identification, analog current output, switch output, flexible frequency setting method and can realize online switching of various frequency setting methods, online parameter modification, pulse frequency setting, power-off parameter storage, fixed amplitude, adjustable amplitude of frequency modulation, RS485 communication and other practical and advanced functions. It provides integrated solutions for equipment manufacturers and end users, which greatly reduces the procurement and operating costs of the system and improves the reliability of the system.

This document is an instruction manual for the TH4108-M/A inverter remote controller, which describes its features and appearance. The controller can remotely operate the inverter, enabling functions such as start, stop, accelerate, decelerate, and forward/reverse rotation, and display status information such as set frequency and actual frequency. It features optically isolated RS485 communication, strong anti-interference capability, and protection against lightning and static electricity.