Common faults of signal isolators include the following: 1. Unstable signal transmission: the output signal is intermittent, fluctuates greatly, or is inconsistent with the input signal. This may be caused by circuit aging, poor contact, interference, etc. 2. No output signal: The input signal is normal, but the isolator has no output signal. It may…
Temperature sensors are indispensable and important components in modern industry, scientific research and daily life. Their stability and accuracy directly affect the operating efficiency and safety of equipment. However, due to the influence of various factors, temperature sensors often encounter some failures during use. This article will analyze these common faults and propose corresponding solutions.…
With the popularization of Internet of Things (IoT) technology, electrical products are increasingly developing towards high performance and small integration, and the design of circuit boards also tends to be high-density. During long-term use, this kind of high-density circuit board is prone to quality deterioration due to heat accumulation and component aging, and may even…
Wine, a drink originating from ancient times, has become the favorite of countless wine lovers around the world with its unique taste and rich cultural connotations. However, when we look closely at the Chinese back labels of imported wines, we often find a slightly disturbing ingredient – sulfur dioxide. After all, sulfur dioxide is often…
LORAWAN wireless water immersion leakage sensor consists of two parts: a data collection box and a water immersion leakage sensor. The water immersion leakage sensor uses the principle of liquid conductivity and uses 4 probes to detect water leakage. Normally, the two poles of the probe are insulated by air. When in the water immersion…
With the increasing awareness of global environmental protection , lead-free has become an important trend in many industries. As a high-performance sensor, the lead-free oxygen sensor has the environmental advantage of being lead-free. It has been widely used in various fields such as industry and plays an important role. Editor: Compared with traditional lead-containing oxygen…
PLC programming algorithm (1): switch value There are nothing more than three large quantities in PLC: switching quantity, analog quantity, and pulse quantity. Once you understand the relationship between the three, you will be able to master PLC proficiently. 1. Switching quantity is also called logical quantity, which refers to two values, 0 or 1,…
PLC reading analog signals must have an analog input module, which is often called an AI module. Commonly used analog quantities such as pressure , temperature , humidity, flow , etc. need to be converted into current signals or voltage signals by a transmitter. Current signals are commonly used 4-20mA, or voltage signals 1-5V, and…
In the field of modern industrial automation, variable frequency drives (VFDs) have become an indispensable part. They not only change the speed of three-phase AC motors but also offer a variety of control functions such as non-emergency start and stop, acceleration and deceleration, overload protection, etc. To ensure that the VFD perfectly fits your application,…
In the field of industrial automation , [color=rgb(68, 68, 68) !important] frequency converters are important equipment for driving motors , and their stability and reliability are directly related to the smooth operation of the production line. However, frequency converters often encounter overload or overcurrent problems during use , which not only affects the normal operation…