What Is Continuity Tester?

What Is Continuity Tester?

2021-10-22
NOYAFA
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In the field of continuity tester production, SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED has earned years of experiences with abundant strength. We insist on adopting the superior materials to conduct the production. In addition, we have obtained numerous certifications from international standards testing organizations. Thus, it has superior quality and performance compared with similar products and its application prospect becomes more and more extensive.NOYAFA products are highly recommendable, commented by our customers. After years of efforts in improving and marketing, our brand has eventually stood firmly in the industry. Our old customer base is increasing, so is our new customer base, which greatly contributes to the overall sales growth. According to the sales data, almost all of our products have achieved high repurchase rate, which further proves the strong market acceptance of our products.At Best Cable Tester Supplier in China _ Noyafa, we serve customers with absolute focus on very specific needs and requirements. With the help of facilities, we ensure that continuity tester is individually tailored and optimized for each order. 
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A Good Guide of Cable Continuity Testers How to Choose
A Good Guide of Cable Continuity Testers How to Choose
You are ready to start shopping now that you know a little more about what is involved in selecting a good voltage tester. Below are details of the best voltage testers on the market from trusted brands that manufacture high quality electrical tools. Trusted manufacturers in the power tool industry specialize in making electrical tools for professionals, and their products are top notch, with many professionals using gauges that they have purchased for decades.To help you find the best network cable tester for your use I have compiled a list of test products that work. I came across the Elegiant Network Cable Tester while working on establishing a LAN connection for a local company. With my extensive experience as an electrician, I can say that this is the best tool for testing cable connections.During the test, make sure you remove the cable from the computer, modem and router. Network cable testers are great for checking cable continuity and ensuring that the signal gets through. Klein Tools VDV501-823 and V DV Scout (r) Pro-2 test kits test voice (RJ11-12) and data (RJ45) via video-to-F connectors and coaxial connections.Platinum Tools TCB360K1 Cable Prowler (tm) Pro Test Kit - Full color cable length gauge with the ability to determine connection status, connectivity and POE detection. I love this type of cable tester because it provides accurate and accurate measurements of the integrity of cable connections. Make sure your cable and network connections are in top shape with this product.Network cable testers are sensitive products that are exposed to various extreme elements, so I suggest getting a tester with a longer warranty. A cable tester checks the electrical connection between signal and cable and confirms things like the wires at the end of the cable. With the HOSA CBT 500 you can test your cable gigging quickly and easily.Selecting, selecting and purchasing a suitable network cable tester can be a complicated and challenging task. In this article, a demanding effort is made to show you how you can test the continuity of circuits and how a good continuity tester will handle your situation. For example, suppose you are looking for a good Ethernet cable tester or an Ethernet cable speedometer.Continuity checks are indispensable for cable installation, cable marking, troubleshooting in the circuit and polarity testing. I have written this conclusion so that people can begin to make up their minds after reading this article. Here's a look at the best recommendations for the best continuity testers on the market.A continuity tester is an electrical test device that determines whether an electrical path has been established between two points where an electrical circuit can be produced [1]. The circuit is tested by activating and connecting the device. A voltage tester or plug analyzer detects the presence of electrical voltage.Voltage testers and socket analyzers indicate to which socket a device is connected. They are used for cables, wires, circuit breakers, lights, sockets and switches. A socket tester is the size of an electrical plug and works with any plug or socket.A fast, acoustic alarm test uses a digital multimeter to determine whether a circuit or line is complete or defective. A Fluke T6 1000 Pro electric tester with multimeter and field sensor not only detects the voltage, but also measures the voltage when disconnected from the outlet. During the sliding test of the fork wire, the tester reports the condition of the wire.The Fuke T6 1000 Pro electric tester also has other common settings that you would expect from a multimeter, including AC / DC resistance and Amperage measurements. One leads to the circuit breaker and fuse box, and the other conducts the current to other devices in the circuit. Using a multimeter, you can see whether the white or black cable is in the inverted socket and whether the earth cable inserted into the box is connected to the socket.When the receiver passes the correct circuit breaker, it emits a noise or light. To determine how hot the cable is, turn off the power, disconnect the socket and place a cap on the cable, usually one of the black ones. An electrician knows that with an electrical tester in his arsenal of tools, you never have to worry about getting a shock.It's the tester you want when you're constantly working with cables and circuits. If you work with coaxial cables, get a special tester, whether you are using a VDV512 or 007. Just like James Bond, they can spy on the cables and help you identify and label the right ones.
Why to Choose a Cable Continuity Testers for Your Home
Why to Choose a Cable Continuity Testers for Your Home
TCB360K1 Cable Prowler (tm) Pro Test Kit Full-color high-end cable length gauge with the ability to determine connection status and connectivity for POE detection. Klein Tools VDV501-823 VV Scout (r) Pro 2 Tester Kit Test Voice (RJ11-12) and Data (RJ45) via Video-to-F connector or coaxial connection. Before testing, make sure you remove the cable from your computer, modem or router.A cable tester checks the electrical connection between signal and cable and confirms that everything is wired correctly at both ends of the cable. With the HOSA CBT 500 you can test your cable gigging quickly and easily.Check that the cable connection you want to test is ready for analysis and that the tester is not electrocuted or that the device breaks. Test your network cables as with a network cable tester and run the test. If you connect both ends of the cable, a network cable tester will do the job for you and get an accurate reading of whether your cable is working or not.If you need to test voltage and current continuity, you should get an electric tester. With these testers you can test the cable against volts, current and ohms to check if the circuit is short-circuited through the cable. The testers can measure both AC and DC voltage and current in seconds.Continuity tests help to verify and reverse electrical circuit connections. For example, when two wires melt in a sheathed cable, a continuity detector lights up when you touch one probe with the black wire and the other with the white wire. Continuity testers are also excellent for checking if the wires are running smoothly and to see if the circuit is complete.Continuity checks can also be used to detect problems with cold soldering between wires or wire products. In addition, this type of electrical testing can also be used to check connection pads and traces on printed circuit boards (PCBs ).The most common and basic method to perform a continuity test with the help of a resistance tester is a simple multimeter function. Specialized continuity testers are available, but the most basic is an inexpensive light bulb that lights up when electricity is flowing. A digital multimeter continuity test can be used to test switches, switches, fuses, electrical connections, conductors and other components.A continuity tester consists of a battery, a housing, a probe connected to one end of the housing and a test wire connected to the other end with an Alligator clip. A continuity test on an electrical circuit is performed when it is not switched on by using a tester. To use a continuity tester, first pull the device off the connector and disassemble it to get to the component you want to test.Continuity testers are easy to understand: they consist of a battery housed in a housing, a cover, a probe for testing the wire, a tensed end of the battery in the housing and an alligator clip for the second end.A continuous tester is an electrical tester used to determine whether an electrical path has been created between two points [1] where an electrical circuit is produced. Its user-friendliness is determined by the fact that it is a power switch to determine whether an electrical device maintains a flowing current flow in its body. If this is not the case, it is used to find out the root of the problem within the device.Testers are excellent for checking whether a device is working properly, such as a single-pole switch, or for checking lamp wiring to see that electrical paths are intact. Make sure you turn off the power for the circuit or the device you are testing. These test tools allow network technicians to isolate cabling problems and network protocols to solve problems.This works with any coaxial cable with a special tester, whether you are using a VDV512 or 007. Like James Bond, the tester will spy on the cable and help you identify and label the right cable.A continuity tester is a special electrical device used to check the continuity of cables and wires in a circuit. A network tester calculates the signal and power transmitted from one end of a connection to the other in a twisted pair. If the cable is continuous, this means that all voltages applied to the cable are in the same place.If you want to check the quality of your cables, use a standard tester. Professional network testers are used in commercial environments and are used by certified professional cable installers to get the job done.Test tools do not provide bandwidth readiness information for high-speed data communication. Certification audits are a way for installers to ensure that the cable fed into the network meets TIA and ISO requirements. These tests are performed by professional network testers and certified installers.To help you find the best network and cable tester for your use, I have compiled a list of test products that work well. The LinkIQ cable network tester is easy to use as explains Eric Webb, Flukes Network Product Manager, in the video below. It shows the settings to use and how to use them to perform cable tests, save the results and upload them to linkware where they are available.I came across the Elegiant Network Cable Tester while working on establishing a LAN connection for a local company. With my extensive experience as an electrician, I can say that this is the best tool for testing cable connections.Selecting, selecting and purchasing a suitable network cable tester can be a complicated and challenging task. In this article, a great effort has been made to show you how to test the continuity of circuits and how a good continuity tester will handle your situation. This article examines which tools are best suited for normal cables, which are best suited for coaxial cables, which are to be used and which cable types are to be considered when measuring the limit values.
Hybrid Circuit Fault Diagnosis Based on Current Test
Hybrid Circuit Fault Diagnosis Based on Current Test
Abstract: in the process of hybrid circuit fault diagnosis using wavelet neural network, the selection of test parameters is very important. A fault diagnosis method based on current test is studied. Through the static and dynamic current information of PSPICE analog circuit and the combination of wavelet neural network, this method proves the feasibility of this method in hybrid circuit fault diagnosis, and provides a new method to improve the fault diagnosis rate of hybrid circuit.Keywords: wavelet neural network; Hybrid circuit; Current test; fault diagnosis0 IntroductionWith the rapid development of electronic technology and the continuous improvement of manufacturing technology, the complexity of the circuit is increasing and the chip size is decreasing. More and more mixed signal circuits are integrated on the system level chip, not just digital circuits or analog circuits. Because of the different testing methods of two circuits, traditional testing can no longer meet the development needs. This brings hitherto unknown challenges to designers, users and maintainers of the instrument and equipment, and also makes the detection of mixed mode signal circuits more and more seriously. The hybrid circuit fault diagnosis based on current test proposed in this paper is proposed under this background.1. Theoretical knowledge of current testCurrent test is to detect and locate the circuit fault by measuring the power supply current and effectively extracting the circuit fault information. It includes static current test technology IDDQ and dynamic current test technology IDDT.When the circuit works normally, the quiescent current is very small, but the quiescent current of the defective circuit is very large. Therefore, when the quiescent current in the circuit is detected to be abnormal, it can be determined that the circuit has failed. This is also the principle of IDDQ test. However, some faults in CMOS circuits, such as open circuit fault, do not cause abnormal quiescent current. Therefore, it is necessary to introduce dynamic current test here. Based on this, this paper considers the combination of quiescent current and dynamic current test, rather than simple quiescent current test. IDDT is a short conduction current, that is, during the state transition of CMOS circuit, PMOS transistor and NMOS transistor are turned on at the same time, so that a conduction circuit is formed between power supply and ground, as shown in Figure 1. Since IDDT is the change of current in the process of dynamic conversion, the size of IDDQ does not affect its result. Therefore, it also avoids the influence of the increasing static leakage current of deep submicron circuits on the test. This paper studies the significance of the combination of the two in hybrid circuit fault diagnosis.2 wavelet neural network for hybrid circuit fault diagnosisWavelet neural network is a combination of wavelet analysis theory and artificial neural network ANN theory. At present, there are two ways to combine the two:(1) Loose combination. That is, wavelet analysis, as a preprocessing means of neural network, provides input eigenvectors for neural network.(2) Compact combination. Wavelet and neural network are fused directly, that is, wavelet function and scale function form neurons.This paper adopts the combination of loose wavelet and neural network. Firstly, the modeling and Simulation of normal circuit and fault circuit are carried out through PSpice, and the static current IDDQ and dynamic current IDDT parameters are extracted. The characteristics of the obtained current are extracted by wavelet analysis in MATLAB, and analyzed in combination with neural network. The steps are as follows:(1) Parameter extraction. The current information of normal circuit and various fault circuits with bridge fault, open circuit fault and so on are extracted in PSPICE.(2) Wavelet analysis. The current information obtained in (1) is decomposed by wavelet in MATLAB, the wavelet coefficients are extracted, and the RMS is further calculated.(3) Fault location. Wavelet analysis and BP neural network are combined to analyze and judge the positioning effect. The specific steps are shown in Figure 2.
What Are the Precautions for High Voltage Test
What Are the Precautions for High Voltage Test
1. The first type of work ticket shall be filled in for high voltage test. Fill in a work ticket when an electrical connection part has maintenance and test at the same time. However, before the test, the permission of the person in charge of maintenance shall be obtained. After the work ticket for high voltage test is issued in the same electrical connection part, it is prohibited to issue the second work ticket. If the disconnection point between the pressurizing part and the maintenance part has enough safety distance according to the test voltage, and there is a short circuit on the other side, the series resonance can be tested on one side of the disconnection point, and the other side can continue to work, but at this time, a "stop, high voltage danger!" sign shall be hung at the disconnection point, and a special person shall be assigned to monitor it;2. There shall be no less than two persons for high-voltage test, and the person in charge of the test shall be an experienced person. Before the test, the person in charge of the test shall arrange the safety precautions in the test in detail for all test personnel;3. If the equipment connector needs to be disconnected due to the test, it shall be marked before disassembly and checked after connection;4. The metal shell of the test device shall be reliably grounded, the high-voltage Lead shall be shortened as far as possible and firmly supported with insulating materials when necessary. The power switch of the test device shall make the double knife switch obviously disconnected. In order to prevent false closing and switching, an insulating cover can be added on the knife edge. There shall be two series power switches in the low-voltage circuit of the test device, and an overload automatic switching device shall be installed;5. A barrier or fence shall be installed on the test site, a "stop, high voltage danger!" sign shall be hung outward, and someone shall be assigned to guard it. When both ends of the tested equipment are not in the same place, someone shall be assigned to guard the other point;6. Before pressurization, it must be carefully checked that the test wiring meter, the magnification, the zero position of the voltage regulator and the starting state of the instrument are correct. Inform relevant personnel to leave the tested equipment and obtain the permission of the person in charge before pressurization. There shall be monitoring and singing during pressurization. The staff of high voltage test shall concentrate on all pressurization and shall not chat with others, Be alert to abnormal phenomena at any time. The operator shall stand on the insulating pad;7. When changing the wiring or after the test, first disconnect the test power supply, discharge and short-circuit the high-voltage part of the booster equipment to the ground;8. The tested equipment of the large fuse without ground wire shall be discharged first and then tested. During the high voltage DC test, the equipment shall be discharged to the ground several times and short circuited to ground at the end of each paragraph or end;9. At the end of the test, the tester shall remove the self installed grounding short circuit, inspect the tested equipment and clean the site;
Follow the Cable Fault Tester Supplier to Deeply Understand the Cable
Follow the Cable Fault Tester Supplier to Deeply Understand the Cable
The lead of the motor is not only related to the rated voltage of the motor and the open circuit voltage of the rotor of the wound rotor motor, but also directly related to the current carried by the motor winding and the actual service condition of the motor. The selection of lead specifications should first be determined according to the withstand voltage value. The cable has a withstand voltage range. This rule must be followed when selecting. Below, the supplier of cable fault tester will take you to have an in-depth understanding of cables. Select the lead of corresponding voltage level according to the voltage requirements of the motor. The voltage level of the lead shall not be lower than the rated voltage of the motor winding. For example, for 10kV and 380V motors of high-voltage motors, the voltage value of the cable is very different. In addition, besides the voltage and current requirements, the insulation grade of the cable of the motor lead is also very important. According to the insulation grades of class B and h, the insulation heat resistance of the motor is different, and the material of the insulation material is also different. It must be noted that if the class B lead is used in the class H insulated motor, the possibility of lead damage and ground fault is very high. The cable fault tester supplier interprets the provisions of motor lead in the national standard: 1. Determine its necessity according to needs. According to the standard, if the motor has a power cord, or in order to facilitate connection with other equipment, provide a guide cord extending out of the motor base and a plug connecting the power supply line if necessary, the cord and plug shall comply with the provisions of the relevant standards of the product or the relevant standards of such equipment. Especially for small motors, winding wires can be used to connect with equipment or terminal blocks, but for motors that must undergo relevant insulation treatment, soft wiring must be adopted, and the provisions of terminal blocks must be added. Unless grounding is not required, these flexible wire bundles must have grounding conductors. Leads (including ends) require different colors and markings. Most motor manufacturers use three-color leads for three-phase motors, and some motor manufacturers use labels to distinguish them. However, for grounding wires, they are adopted according to standards. 2. Voltage and current requirements. The standard stipulates that the rated voltage of the guide flexible cable must be under the maximum working voltage of the motor, and its load flow must be at least equal to the load current of the service factor or 125% of the full load rated current, whichever is the larger. The flexible cord insulation shall withstand the working frequency withstand voltage test of the circuit. 3. Protection requirements for leads. In addition, there are measures to eliminate the possible tension, or guide the flexible cable (power cord) not to expose the motor. An insulating protective layer and clamping device are set at the outgoing part of the flexible cable to prevent the external tension from being transmitted to the internal wiring and prevent accidents caused by the rotation and displacement of the flexible cable. 4. Limitations and insulation requirements. In addition to other protective measures, the introduction of flexible cables into the motor shall be prevented. The clamping device for clamping and fixing flexible cables is made of insulating material, made of metal material and requires insulating lining.
Best High Voltage Detector Tester Reviews in 2021
Best High Voltage Detector Tester Reviews in 2021
A voltage detector is a power tool that tests the electric field presence of an electrical circuit. A voltage sensor is capable of detecting 12-1000V AC and can detect the voltage of electrical appliances, cables, switches, cables, lights, wires, sockets and circuit breakers. It is also able to detect the voltage of irrigation systems, doorbells, low voltage flashes and thermostats.The Sperry voltage tester is a durable, portable, lightweight and easy-to-use voltage sensor, which can detect AC voltages from 1.2 V to 1,000 V. Our love of the Greenlee Commercial Electric Voltage Tester is that it includes helpful design elements such as acoustic and visual clues that there is electricity in the output, such as the sound of the voice and additional echo sounder alarms. The Klein Tool ET40 voltage testers are ideal for checking regular electrical wiring, door bell sockets, lights and others.Due to the simple design described above, it is easy to use Klein Tools NCVT-3 voltage tester. The Fluke 1AC-II Non-Contact Voltage Meter has a red tip and a beep that sounds when voltage is detected. To use this non-contact voltage tester, all you need to do is touch the tip of the non-contact voltage meter to the wire on the outlet and then place it in a small slot on the front panel.If a voltage is detected, an LED lights up at the top and the circuit is interrupted. When electromagnetic waves come from a source and the voltage hits the tip of the ballpoint pen, the non-contact voltage tester reacts by sending a signal to the circuit, which activates a light and a sound to inform the user that a power cable has been tested. The FLK2AC can detect voltages from 90 to 1,000 volts, it lights up red and a beep indicates that it has detected voltage.The FLK2AC is powered by two AAA batteries and has an automatic shutdown to avoid draining the batteries. The NCVT 3P comes with a flashlight, which the NCVT 2P lacked, so I decided to replace the 2P with an NCVT 6 that uses a laser to determine the exact distance to the voltage source. I have also included the Neoteck Professional Non-Contact option as a low-end option and the Bside X1As as a high-end option.If you need a high-quality outdoor voltage tester, the waterproof IP67 housing of the Southwire mid-range non-contact voltage tester is appreciated. A voltage detector or LED tester not only provides maximum safety, but also removes the limitations of the type of voltage devices that can be tested. Not only is it the most reliable model in its price range but it is also equipped with new Voltbeat technology which enables self-testing, so that when something goes wrong, the problem can be detected by the sensor itself or by another device such as a nearby voltmeter or oscilloscope.This voltage detector with LED tester has a wide detection range from 1.2 to 1000V AC and is able to test the voltage of household appliances. In addition to detecting standard and low voltages, it can also identify nominal voltages. The quality voltage pin operates in a wide voltage range and gives visual and acoustic feedback when a voltage is detected.All these aspects must be taken into account when selecting the best voltage tester for daily use. Our ratings of the best voltages to test will help you choose the best one for your needs.Buy one from a trusted manufacturer if you are looking for a tool that will be part of your toolbox for years to come. You will want the best and you will be eager to find a lasting one. You can fix failed assets with the first tool you put your hands on.If you are looking for a non-contact tester with an outstanding feature, this will be your ideal choice. It has an auto function that automatically determines whether the device has been used in the last few minutes. My colleagues praised this product and the reviews reflect the satisfaction of the product buyers.Milwaukee is at the forefront of innovation, producing innovative products that help solve everyday problems, such as the 2203-20 voltage tester. This multimeter switches between AC and DC current to test resistance and amperage. As a trusted manufacturer in the power tool industry, specializing in the manufacture of electrical tools for professionals, their products are top notch, and many professionals have been using the meters they buy for decades.
How to Use the Cable Identifier and How to Judge Whether the Cable Is Live
How to Use the Cable Identifier and How to Judge Whether the Cable Is Live
How does the cable identifier judge whether the cable is live? First: why should we judge that the cable is live: as an important instrument of power cable detection instrument, cable identification instrument has been used more and more widely. When there are multiple cables in the cable trench, it is necessary to identify a specific power-off cable, calibrate, move or cut off the cable, and other cables in the cable trench operate live, so the cable identification instrument shall be used for cable identification. Second: easy to use: compared with the cable fault tester, the use of the cable identification instrument is relatively simple. It is easier to use it by reading the instructions. Third: test example: since the cable shielding layer is usually connected to the ground, if other cables are also connected to the public ground in the cable bundle, the black output jack on the generator can be connected to the public ground, The return current is distributed in several cable shielding layers, and the return current is divided into many tributaries, which means that the difference current of the identified cable is large and the useful signal is clear. "Difference" means that the output current and its divided return current are in the same channel. As shown in Figure 4, there are 5 cables in Figure 4. Cable 4 needs to be identified. The "output current" of the cables to be identified is 20A. Assuming that the return current is evenly distributed among the shielding layers of all cables, there should be a return current of 4A in the cable to be measured. The difference in the cable to be identified is: 20A (output) - 4a (return) = 16A (difference). How to use the cable identification instrument I. working method of the cable identification instrument: the transmitter (host) is powered by 220V AC power supply, which is used for the power-off The cable to be identified, plus a fixed period, unipolar DC pulse signal. The output line of the transmitter is connected to the cable core and the grounding point or ground nail. The armor of the cable is disconnected from the earth, and the core is connected to the grounding point or ground nail at the far end. The loop can conduct pulse current, which can be read out by the meter on the receiver of the identifier. The current is determined by the loop resistance, and the loop resistance should be as small as possible. The wiring diagram of the identifier is shown in Figure 2. Note: during field use, if the grounding resistance is too small, the output current of the transmitter will also be large when the output adjustment knob is turned back to zero, and the protection circuit in the transmitter will act (shown as a small fast swing of the meter). At this time, the randomly configured 1 ohm 20W high-power resistor can be connected in series in the transmitter circuit. After the transmitter and receiver start working normally, the voltage induced in the sensor coil is displayed in the receiver header. The pointer swing direction of the header can display the current direction, that is, only the cable with current flowing out, the pointer deflects and swings greatly. This is the cable to be found. For all other cables, only the return current flows, the pointer deflects in the opposite direction and the swing is very small. The output adjustment knob on the receiver can adjust the signal strength. 2、 Wiring mode: 1. Before the test, cut off the tested cable, and the surrounding environment shall be in a safe state. 2. The generator is connected with the tested cable, and the red clip is connected with one or several cores of the identified cable. Connect the black clip to the ground nail. 3. Connect the core wire at the far end of the cable to the ground nail. 4. Disconnect the armor at both ends of the cable from the ground wire. 5. Plug the power cord into the power outlet. 3、 Identify the cable through the loop test. 1. In order to ensure the normal use of the instrument, pay attention to setting the test loop. 2. Connect the red output jack to the core of the cable to be identified, connect the black output jack to the ground, and connect the cable core to the ground at the far end. As shown in Figure 3, 3. The output current flows to the far end in the direction of the arrow in the cable, and all cores of the identified cable can be connected together through the earth return generator to obtain a clearer signal.
Operating Instructions for Live Cable Identifier
Operating Instructions for Live Cable Identifier
1. Connect the transmitting source: the live cable identifier inserts the red and black wiring plugs of the transmitting caliper a into the two red and black wiring posts corresponding to the transmitting source, and clamps the transmitting caliper a on the identified cable. The arrow on the transmitting caliper a points to the cable terminal. Both ends of the identified cable shall be reliably grounded. For cables that do not operate, the core wires at both ends can also be grounded. 2. Turn on the power switches of the transmitting source and receiver to check the direction: on the identified cable two meters away from the transmitting caliper, clamp the receiving caliper B to the cable, and the arrow on the caliper must point to the cable terminal. Then check the current direction and test connection direction. At this time, the pointer of the receiver ammeter must deflect to the right, and there is an audible and visual prompt at the same time. If the arrow of the receiving caliper B points to the transmitting source end, there will be no audible and visual prompt, and the pointer of the current meter will deflect to the left. Remember the deflection direction of the receiving caliper gauge. 3. Identification: at the identification point, use the receiving caliper B to identify each cable. During identification, the arrow on the receiving caliper must always point to the terminal direction of the cable, and the cable shall be clamped one by one. On the identified cable, the current meter pointer of the receiver must be deflected to the right, and the audible and visual alarm prompt shall be given at the same time. On other cables, the pointer of the receiver current meter must deflect to the left without audible and visual alarm. The pointer of the current meter of the receiver deflects to the right, and the audible and visual alarm prompt is the cable to be searched and identified. This test result is unique. That is, no matter how many cables there are in the cable trench, when each cable is identified with the receiving caliper B, only the receiver current meter pointer on one cable (the cable to be found and identified) deflects to the right and gives an audible and visual alarm. Dear customers: Hello, our company is a high-quality development group with strong technical force, providing users with high-quality products, complete solutions and superior technical services. The main products are underground cable fault tester, cable fault tester, cable fault tester, etc. The enterprise adheres to the tenet of building a business in good faith, keeping the business with quality and developing the business with enterprising. It continues to climb new peaks with a firmer pace and make contributions to the national automation industry. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
Application Scope of Underground Pipeline Detector
Application Scope of Underground Pipeline Detector
Underground pipeline detection method is one of the commonly used geophysical detection methods. Generally, there are two methods: the first is to use DC detection method for geophysical detection. Specifically, in the process of detection, two power supply electrodes are mainly used for corresponding DC power supply, and a power supply cycle is formed underground, Through the circulating power supply to ensure the measurement of underground current density, we can effectively judge the specific location of buried metal pipelines. Generally, the detection using this method is mainly based on the corresponding metal pipeline. This method is based on the difference of current density. Generally, the most commonly used method of this technology is the high-density resistivity method for corresponding measurement. For example, during the measurement of underground pipelines in a city, the direct current detection method is used for geophysical detection, and the location of metal pipelines in concrete materials is effectively found; The second method is to use the alternating current detection method for geophysical detection. Specifically, in the process of detection, the corresponding conductivity and corresponding magnetic transformation generated by the alternating current in the process of magnetic field transformation are mainly used. In the process of detection, the corresponding underground pipelines are detected through the magnetic field formed by the alternating current, So as to effectively ensure the accuracy of underground pipeline detection. Through the use of alternating current detection method for geophysical exploration, we can effectively find the differences between underground media, and find out the specific problems and sources of these differences through the analysis of these differences. Specifically, these methods have the characteristics of uniform measurement and long working time. They are one of the effective means for underground pipeline detection.
Composition of Buried Cable Fault Detector
Composition of Buried Cable Fault Detector
The buried cable fault detector consists of rt-2133 cable fault tester host, rt-2132j cable fault locator and rt-2132f cable Pathfinder. The host of rt-2133 cable fault tester is used to measure the nature of cable fault, the total length of the tested cable and the approximate position between the cable fault point and the test end. Rt-2132j cable fault pointing instrument determines the exact location of cable fault point based on the approximate location of cable fault point determined by the host of cable fault tester. For buried cables with unknown trend, cable Pathfinder shall be used to determine the trend of underground cables. If the specific direction of underground cables is known, cable Pathfinder may not be used. The host of rt-2133 cable fault tester can be directly connected with the notebook computer for easy management and operation. The rt-213x complete set of cable fault test instruments can quickly and accurately find the fault points of various cables. It is suitable for factories and mining enterprises, metallurgy, petrochemical systems, power plants, airports, railways, power supply and other departments. Rt-213x cable fault comprehensive tester is widely used to detect low resistance, short circuit, open circuit and various high resistance faults of aluminum core, copper core power cables, high-frequency coaxial cables and local telephone cables with different sections below 35KV. It is a necessary equipment to ensure safe power supply and a powerful assistant for cable production and maintenance workers. Dear customers: Hello, our company is a high-quality development group with strong technical force, providing users with high-quality products, complete solutions and superior technical services. The main products are cable fault locator, cable identifier, live cable identifier, etc. The enterprise adheres to the tenet of building a business in good faith, keeping the business with quality and developing the business with enterprising. It continues to climb new peaks with a firmer pace and make contributions to the national automation industry. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
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