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Cable fault locator TDR-TA4.7

Ultimate time domain reflectometer with multiple measurement modes, external surge wave transmitter support, colorful TFT display and USB port.

Key features

  • Multiple modes of detection.
  • Inspection up to 256 km.
  • USB port, internal memory.
  • Built-in accumulator.
  • Colorful TFT display.

Features

TDR-TA4.7 is used for cables up to 256 km. It locates the most complicated and high impedance faults. It stores all the measurements in its internal memory. This device has a bank of commonly used cables uploaded for the best accuracy of location.

TDR-TA4.7 is intended for the following measurements on power cable lines:

  • cable length measurement and cable integrity tests;
  • measurement of the distance to the heterogeneity of the cable impedance or low-resistance fault, using TDR method;
  • measurement of the distance to the high-resistance fault, using the Arc Reflection Method (ARM) in complex with the high-voltage pulse generator (HVPG);
  • measurement of the distance to the high-resistance fault, using the Impulse Current Method (ICM) or Decay Method in complex with the high-voltage pulse generator (HVPG);
  • measurement of the velocity factor of the line at a known length.

High resolution

High resolution

ARM method

ARM method

Long measurement range

Long measurement range

ICM method

ICM method

Specifications locator TDR-TA4.7

Parameter Value
Implemented measurement methods TDR, ARM, ICM, DECAY
Display color 10.4" TFT 640x480 pixels, LED-backlight 400 cd/m2
Distance measurment range range range PF=1.500: 1 m…256 km
Pulse Width 10 ns…100 us
Pulse Amplitude 18 V, 86 V (on open circuit)
Distance measurement relative error 0.01...0.2% (depending of sub-range)
Distance measurement absolute error 0.125 m (on sub-ranges <= 1 km)…32 m (on 256 km sub-range)
Effective sampling rate 800 MHz
Input impedance 75 Ohm (fixed)
Attenuation overlap 73 dB
Asynchronous noise suppression averaging 1…64 times
Propagation Factor(PF) range PF=1.000…3.000
Synchronization ARM external (TRIG), internal (delay 0…50 ms, step 0.2 ms)
Synchronization ICM, DECAY threshold level (-165…+165 V, step 2 V)
Non-volatile internal memory 300 waveforms, 500 PF values
Data exchange via USB-Flash
File types waveform (*.tdr, up to 8000 px), screenshot (*.jpg)
User interface language russian / english / your language on request
Connectors TDR (BNC), TRIG (BNC), WAVE (BNC), USB-A
Power AC 12 V, built-in Li-Ion battery (7,2 ± 0,7) V 7,0 A
Continuous running from the battery at least 6 hours, continuous running via AC adapter is not limited
Overall dimensions 363x295x170 mm
Weight 3.7 kg

Working conditions

- operating temperature range from -20 to +40°C;
- relative humidity 98%, at 25°C;
- transportation and storage conditions from -50 to 50°C

Standard set

Name
1 Cable fault locator TDR-TA4.7 (tech. spec. 4221-009-23133821-15) - 1 item
2 AC adapter 12 V - 1 item
3 Connecting cable 75 Ohm, 3 m, BNC.M - «Alligator clip» with a working width of 25.4 mm - 1 item
4 Connecting cable 75 Ohm, 1 m, BNC.M-BNC.M - 2 items
5 User Manual (tech. spec. 4221-009-23133821-15) - 1 item
6 CD-ROM with software - 1 item
7 Accessories bag - 1 item

Video

Cable fault locator TDR-TA4.7

This is brief review of cable fault locator TDR-TA4.7.

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