Mitsubishi PLC R120SFCPU-SET

07/25/2020

How to distinguish the quality of the wire?

Good strong wires are the basic level of home circuit engineering, so how do consumers judge which strong wires are good wires?

08/11/2020

The temperature status and faults of the unit components of various commercial central air-conditioning systems

When the commercial central air-conditioning system is overhauled, temperature inspection and testing are very important, because the unit components of the entire central air-conditioning system have a normal temperature range, beyond which it is an abnormal state.

08/15/2020

Illustrate the working principle and characteristics of various heat exchangers

1. Heat exchanger<br></br> 1. U-shaped tube heat exchanger<br></br> Each tube is bent into a U shape and fixed on the same side tube plate. Each tube can be freely expanded and contracted, also in order to eliminate thermal stress.

08/20/2020

Don't blindly repair the refrigeration compressor if it fails to contact the manufacturer is the best policy

The environmental temperature and humidity test box is mainly used for product temperature, humidity alternating and high and low temperature rapid alternating cycle tests, and its purpose is to detect the reliability of products under high and low temperature impact tests.

10/29/2022

What is a Servo Drive

Servo drive, also known as "servo controller" and "servo amplifier", is a controller used to control servo motors, and its function is similar to that of frequency converters used for ordinary AC motor.

09/09/2020

Talking about the development process and use situation of Chinese vacuum drying equipment

Since ancient times, humans have been accustomed to drying materials with natural heat sources and natural ventilation. Until now, some rural areas still use solar heat to dry materials. Although these natural methods are energy-saving and environmentally friendly, it is an indisputable fact that production efficiency is low.

08/21/2020

What is the difference between cold storage lamps and commonly used lighting lamps

It is a necessary item to install cold storage lights in the cold storage. Can you choose general lighting to install in the cold storage? What are the benefits of installing professional cold storage lights in the cold storage?

07/31/2020

Multi-online display FC, FL, FE fault processing method

Outside machine LED3 double 8 indicator light is on and displays: FC, FL, FE. When the indicator light of the external mainboard and the line controller fail, the following figure will be displayed:

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

07/30/2020

Causes and troubleshooting of industrial chillers

1. High condensing pressure (higher than the specified value) failure causes and remedies:<br></br> 　　①There is non-condensable gas in the system: release non-condensable gas.