What are some misconceptions about digital refractometers

DATE:2023-10-18

What are some misconceptions about digital refractometers? The reason why digital instruments fail is not due to these easily occurring faults: before use, researchers referred to them as natural digital sound speed. Digital displays are used to observe faults caused by high-speed leakage, and the entire cable fault hidden danger is usually observed with the naked eye; Observe the location of cable faults, usually using wax discharge, shielded tube type cables, or welding cables. The faults on the cables are relatively serious and affect the normal operation of the circuit. If there is high-voltage breakdown at the fault point, it may damage the circuit, affect the normal operation of the generator, and cause secondary pollution. The digital high-voltage digital sound velocimeter is mainly used to check the path of buried cables. It can usually check the direction of buried cables, the terminals of buried cables, visually detect cracks, voids, and other faults. Moreover, this instrument can be used to test power frequency withstand voltage (frequency conversion), and can also be used as a time measurement method. Measuring time is the traditional measurement basis. However, the volume, depth, length, width, and other functions of displaying cable faults have not yet been discovered, It is difficult to accurately measure cable faults using traditional methods (bridge method and voltage drop method), and the cable fault point can also affect the measurement speed of fast cutting (high-speed cable), which may have significant limitations on traditional testing methods. PD series intelligent digital high-voltage digital system.

The PD-2LCD cable recognition instrument adopts the latest PD technology and combines ultra-low noise electronic equipment and instruments, with ultra wide capacity and high performance. It is currently a commonly used cable recognition instrument at home and abroad.

The high-voltage short circuit can be accurately set. The following instrument uses 1) cable fault location. The fault point of the bridge is located near the tested object to determine the nature of the tested object. Along the direction of the tested object, the tested object is located to detect the impact of the cable fault point and ensure the accuracy of the test results.

High voltage short circuit points can be accurately set around the cable to determine the specific situation of the tested object and the location of the fault point.

It is possible to accurately set the high-voltage short circuit point around the cable. For the tested object with a short circuit of 0 to 120 meters, it is necessary to determine whether the fault point is a cable fault point or a cable fault point, determine whether it is a cable fault point or locate the fault point. By observing the instrument, the position of the fault point (0-f) can be directly read, and the diagnostic fault point needs high-frequency equipment such as an ultrasonic scanning microscope.

● Exception handling: First, check if the power supply is stable, then check if the output voltage of the power supply is stable. If it cannot be changed, it is recommended to replace the electrical fuse. 5) Determine the fault point and select an appropriate output voltage based on the fault situation until an abnormal fault occurs. If damage occurs, the machine will be shut down and the fault will be repaired.

Determine the fault point and use cable fault locator testing instruments to detect faults through various sensors without any changes.

Equipped with quick inspection and parameter setting functions: if there is a fault, it needs to be disassembled or prepared for searching.

● With online and communication interfaces: it can be connected to devices such as local area networks, gateways, and televisions, but testing instruments with communication methods and multi-scale communication should be provided to achieve rapid data exchange.