Products introduction
Kd-2191 intelligent cable comprehensive detector is a path detection instrument with strong comprehensive performance. It has many functions such as pipeline path detection, cable identification, grounding resistance test, insulation resistance test, etc. The instrument is composed of transmitter, transmitting current clamp, receiver, receiving flexible current clamp, connecting test line, stethoscope, etc.
Pipeline route detection can be used for route detection, pipeline survey and depth measurement of metal pipelines and underground cables without excavation. The instrument uses a variety of filter technologies and has certain anti-interference ability. It can accurately locate and sounding. It is suitable for the detection and patrol of various underground metal pipelines, pipeline management and maintenance, municipal planning and construction, power supply and other departments. It is one of the necessary instruments for pipeline maintenance units. This function is realized by signal transmitter, receiver, signal transmission clamp and connecting test line.
The instrument has the following characteristics:
1. Multiple detection modes: Classic positioning mode, full screen signal mode, signal curve mode;
2. Classic positioning mode: compass, direction and signal amplitude display, and visually display the left and right directions of the pipeline.
3. Full screen signal mode: 360 ° omnidirectional pipeline path indication, continuous display of depth, current and relative position of pipeline. The interface is simple and intuitive, and can be operated without experience
4. Signal curve mode: the historical signal strength curve can be displayed, and the cable position can be found by observing the change of the curve.
5. Current direction determination (partial frequency): the current direction can be calibrated to eliminate temporary line interference and prevent tracking error.
6. The color of pipeline analog line displays the signal interference intensity in real time.
7. The built-in frequency sweep test function allows the user to select the appropriate signal frequency for pipeline measurement through the frequency sweep result to avoid the same frequency interference.
8. Full digital high-precision sampling processing: stable and reliable, ultra-high sensitivity, extremely narrow receiving pass band, strong anti-interference ability, and can fully suppress the power frequency and harmonic interference of adjacent operating cables and pipelines.
9. Multiple detection frequencies: active detection and passive detection.
10. Multiple signal output modes of the transmitter: direct output, caliper coupling and induction method.
11. High power output of transmitter digital power amplifier, full-automatic impedance matching and full-automatic protection.
12. High light is built under the instrument to facilitate night operation.
Application scenarios and specific functions of the instrument
Cable identification is designed for power cable engineers and cable workers to solve the technical problems of cable identification. Live cables and power cut cables can be identified. The user can accurately identify one of the target cables from multiple cables through the instrument to avoid serious accidents caused by wrong sawing of live cables.
During cable identification, 10 cables can be calibrated in advance at the transmitting end and then received at the remote end for identification, which greatly saves the round-trip operation time of engineering personnel and improves work efficiency. Mark √ for successful cable identification and mark √ for non target cable ×, It can quickly and automatically identify the target cable. This function is realized by signal transmitter, receiver, signal transmitting clamp, connecting test line, flexible caliper and stethoscope. The stethoscope can be used when it is not convenient to use the caliper.
The ground resistance test uses the precision 4-wire method to measure the ground resistance on the site, and introduces FFT (fast Fourier transform) technology and AFC (automatic frequency control) technology to automatically identify the interference and select the measurement frequency to minimize the impact of the interference. The maximum rated output current is 6mA, and the measurement range is 0.001 Ω ~ 2000 Ω. The function is realized by the cooperation of the receiver and the connecting test line.
Insulation resistance test is specially used for insulation test in laboratory or on site. It is suitable for measuring the resistance of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment. Embedded high-precision micro current measurement system, digital boost system, automatic discharge circuit, etc. The rated output test voltage range is 100V ~ 2500V, and the insulation resistance measurement range is 0.01M Ω ~ 2.50t Ω. The function is realized by the signal transmitter and the connecting test line.
Signal transmitter: used for pipeline path detection, cable identification and insulation resistance test. The equipment can add identification signal to the target cable through direct output, caliper coupling, induction, etc. the signal has 6 different mixed pulse signals such as 640hz, 1280hz and 10kHz for selection. The maximum signal output power is 10W, and the 10 gears can be adjusted. So as to adapt to different application environments and make pipeline detection and cable identification more accurate and reliable. The instrument has built-in large functional rechargeable lithium battery, automatic impedance matching and full-automatic protection. The transmitter is designed with an integrated special toolbox. Its box can withstand a pressure of about 200kg. The host computer has a 5.4-inch color l liquid crystal display, and the real-time dynamic display of signal output and battery usage.
Firing pliers: applicable to clamp coupling method. The transmitting clamp couples the signal sent by the transmitter to the target cable, and the jaw size Φ 125mm, the transmission clamp has directivity, and the transmission signal flows in from the direction indicated by the arrow on the transmission clamp.
Receiver: used for pipeline path detection, cable identification and grounding resistance test. Built in multiple shielded 3D antennas, it can effectively identify 6 different pulse coded current signals generated by the transmitter, such as 640hz, 1280hz and 10kHz. It can also identify 50Hz and 250Hz power frequency signals and RF signals with center frequencies of 33khz and 82khz. The 3.5-inch color LCD screen is used to dynamically display 360 ° all-round pipeline route indication, depth, current and relative position of the pipeline in real time.
Flexible current clamp: used for cable identification. The current clamp is a Rockwell coil, which has excellent transient tracking ability and can quickly identify the pulse coded current generated by the transmitter. It is suitable for thick cables or conductors with irregular shapes. The inner diameter of the jaw is about 200mm, which can be clamped Φ For cables less than 200mm, it is not necessary to disconnect the tested line, and non-contact measurement is safe and fast.
Stethoscope: used for cable identification. Similar to the shape of the mouse, it can quickly sense and identify the current signal in the transmitter or cable. The arc-shaped sensor is designed to fully fit the cable surface. Cooperating with the transmitter and receiver of this product, it can realize most of the functions of the flexible current clamp and can replace the flexible current clamp for cable identification on most occasions. When using, the stethoscope can be placed close to the tested cable, which is extremely suitable for some occasions where it is not easy to use the current clamp to ring the cable for testing.
Technical specifications
Receiver specification
Functions: pipeline detection (cable position tracking, direction display, depth measurement, current measurement), cable identification, grounding resistance test, external voltage test
Power supply: 7.4v DC 2600mAH rechargeable lithium battery
Input mode: built in receiving coil, flexible caliper, stethoscope
Receiving frequency: active detection frequency: 640hz, 1280hz, 10kHz, 33khz, 82khz, 197khz
Power frequency passive detection frequency: 50Hz and 250Hz
RF passive detection frequency band: the center frequency is 33khz and 82khz respectively
Pipeline detection mode: wide peak method, narrow peak method and sound Valley method
Pipeline detection display: Classic positioning mode, full screen signal mode, signal curve mode
Pipeline detection
Detection range: direct connection method: generally, the cable length can reach 0-20km, which is mainly determined by the grounding resistance, cable resistance and cable buried depth
Coupling method: generally, the cable length can reach 0-10km, which is mainly determined by the grounding resistance, cable resistance and cable buried depth
Induction method: applicable to cables with buried depth less than 2m
Depth accuracy: precise positioning accuracy of plane position: central axis position of target cable or pipeline:
±2.5%
Sound indication: FM tone varying with signal strength
Interference distance: when the coupling method and the induction method are used, the transmitter will generate interference in a short distance. The distance of interference is related to the transmission power and frequency. The greater the power and frequency, the stronger the interference.
The minimum distance between the receiver and the transmitter often needs to be determined by experiments:
Pipeline detection: it can be confirmed that there is no interference beyond 5m of coupling method and 20m of induction method
Cable identification: it can be confirmed that there is no interference beyond 2 ~ 5m of coupling method
Cable identification: identification method: flexible caliper intelligent identification, stethoscope identification;
Number of cables that can be calibrated: 1-10;
Calibration value: one of the conditions for successful identification is that the current percentage of the received signal and the transmitted signal is between 75% - 135% of the calibration value;
Directivity: the transmitting clamp, receiving clamp and loading signal must have the same direction, which is one of the conditions for successful identification
Cable identification
Detection range: direct connection method: signals with loop resistance of 0 Ω ~ 8K Ω can be recognized (generally, the cable length can reach 0-20km, which is mainly determined by the grounding resistance and cable resistance)
Coupling method: signals with loop resistance of 0 Ω ~ 200 Ω can be recognized; (generally, the cable length can reach 0-6km, which is mainly determined by the grounding resistance and cable resistance)
Grounding resistance
: test range: 0.001 Ω ~ 2.00k Ω
Test method: precision 4-wire measurement
Test current: 6.00ma Max
Voltage measurement: range: ac0 ~ 600V
Accuracy: ± 2% ± 3dgt
LCD: 3.5 inch color LCD
Size: about 290mm (length) × 128mm (width) × 700mm (high)
Mass: 1.90kg
Charger: dc8.4v, 1A
Lamp power: 1wmax
Connection interface: 1x mini-b USB interface (for firmware upgrade)
1X DC charging port
1X flexible caliper connection socket
2X external voltage test line connection interface
4X grounding resistance test line connection interface
Flexible current clamp: about 620mm long and 8mm wire diameter
Coil inner diameter: φ 200mm (larger diameter can be customized as required)
Stethoscope size: length, width and thickness: about 111mm × 60mm × 27mm (stethoscope optional)
Lead length: Stethoscope lead length: About 3M
Test line: 1x yellow test line 15m
1X red test line 10m
1X green test line 3M
1X black test line 3M
Working temperature and humidity: - 10 ºC ~ 40 ºC; Below 80% RH
Storage temperature and humidity: - 10 ºC ~ 50 ºC, ≤ 95% RH, no condensation
Withstand voltage: ac2000v / RMS (before the front and rear ends of the shell)
Applicable to safety regulations: iec61010-1 cat 600V, iec61010-031, iec61326, pollution level 2
Transmitter specification
Function: multiple frequency signal transmission modes, insulation resistance test
Power supply: 11.1v DC 5200mAh rechargeable lithium battery
Output mode: direct output, induction method, caliper coupling
Output frequency: 640hz, 1280hz, 10kHz, 33khz, 82khz, 197khz
Output power: 10W max, 10 gears adjustable, full automatic real-time impedance matching
Direct connection output voltage: 150vpp Max
Circuit protection: with overload and short circuit protection
insulation resistance
Output voltage: 100V, 250V, 500V, 1000V, 2500V
insulation resistance
Measurement range: 0.01M Ω ~ 25.0g Ω: ± 3% RDG ± 5dgt
25.0GΩ~2.50 TΩ:±15%rdg±5dgt
LCD: 5.6 inch LCD color screen LCD
Instrument size: About 320mm (long) × 275mm (width) × 145mm (high)
Mass: transmitter 3.85kg; Launch clamp 1.12kg
Charger: DC 12.6V, 1A
Launch clamp size: length, width and thickness: 250mm × 140mm × 35mm
Inner diameter of firing tongs: φ 105mm
Launch clamp wire length: 3M
Test line: red test line 3M, green test line 3M, black test line 3M
Connection interface: 1x type-B USB interface (for firmware upgrade)
1X DC charging port
1X signal transmission clamp connection socket
2X direct test line interface
3x insulation resistance test line interface
Pressure resistance: the transmitter adopts the integrated special toolbox type design, and the box can withstand the pressure of about 200kg
Withstand voltage: AC 3700v / RMS (before the top and bottom of the instrument box)
Electromagnetic characteristics: iec61326 (EMC)
Applicable safety regulations: iec61010-1 (cat 300V, cat IV 150V, pollution level 2)
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