AEC4900 intelligent motor controller is a product based on microprocessor technology and modular design structure. The controller is used to operate AC 50Hz, rated working voltage up to 660V, rated current up to 250A AC motor control circuit contactor, to protect the motor from overload, overheating, external fault, stall, phase sequence, unbalanced phase, undervoltage, overvoltage, underpower, grounding or leakage and other faults.

The QFM65 duct sensor measures relative humidity and temperature in ventilation and air-conditioning systems. It can be used as control sensor in supply or return air ducts, reference sensor, limit sensor, measurement value display or interface with a building management system.

The document introduces Symaro™ duct-type sensor QFM21, which is used to measure relative humidity and temperature. Its features include operating voltage of AC 24 V or DC 13.5-35 V, signal output of DC 0.10 V/4-20 mA for relative humidity and DC 0.10 V/4-20 mA or T1 or LG-Ni 1000 for temperature. The sensor can be used for controlling supply and exhaust air, reference sensors, limit sensors, etc.

This document is the Chinese operation manual for the K-3800 drum machine. It provides information on safety precautions, workplace safety considerations, electrical safety, personal safety precautions, tool usage and maintenance, service, safety during use of the drain cleaner, product overview, technical specifications and standard configuration, accessories, machine assembly, operating procedures, special operation instructions, accessories, maintenance guidance, repairs and service, troubleshooting, etc.

This manual introduces the features, safety precautions, product overview, technical parameters and standard configuration, steel wire rope and elastic guide rod, dredge head and spare blades, machine assembly, operation steps, special operation introduction, maintenance guidance, repair and maintenance, etc. of K-7500 drum dredger.

The TC4421/TC4422 is a high peak output current 9A, wide input supply voltage working range 4.5V to 18V, high continuous output current 2A (maximum), fast rise and fall, short transmission delay time, small supply current, low output impedance, locking protection, input end can withstand a maximum of 5V of negative input, with TC4420/TC4429 6A MOSFET driver pin compatible, space-saving 8-pin 6x5 DFN package high current buffer / driver that can drive large power MOSFET and IGBT.

AutoDome® 200 Series speed dome camera systems are economical, high-performance, color dome cameras with completely interchangeable modules for fast and economical camera feature upgrades.