Cable fault locator TDR-TA4.7
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
ARM method
Long measurement range
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 |