Detection and locating, measuring equipment
Water leak detectors, cable and pipe locators

Cable fault locator TDR-TA3.3T

TDR-303TM is designed for the following types of measurements on balanced and unbalanced cables:

  • Cable length measurement;
  • Measuring distances to impedance irregularities or faults;
  • Measurement of the velocity factor of the cable;
  • Determination the nature of the fault.

Overview

Application Area

The optimum solution for rapid troubleshooting of cable networks – extremely easy to operate, compact and cheap TDR tester.

TDR RI-303TM – a single-channel cable fault locator, designed to determine the nature and location of the cables faults (open, short, sleeve, cable splice, parallel challenge, Pupin coil).

The small size and weight make the RI-303TM especially convenient for working in confined spaces cable wells. High precision characteristics allow to measure near and far zones.

Sphere of application

RI-303TM is intended to measure on cables of the following types:

  • signal and control cables;
  • power cables;
  • aerial cable lines;
  • computer networks ;
  • TV and radio cable lines.

Specifications

Specifications and Characteristics

  • Implemented measurement methods: TDR
  • Display: 3.8" Monochrome (320х240 px)
  • Measurement range (for V/2=99.9 m/μs): 2 m…4.8 km
  • Pulse Width: 10 ns … 10 μs
  • Pulse Amplitude: 18 V (open circuit)
  • Distance measurement absolute error: 0.125 m
  • Effective sampling rate: 800 MHz
  • Receiver bandwidth: 200 MHz
  • Input impedance: 30…400 Ohm
  • Attenuation overlap: 80 dB
  • Velocity Factor adjust range, v/2: 50.0 … 150.0 m/μs
  • Non-volatile internal memory: 1 waveform
  • Input built-in protection from residual voltage on the line
  • Connectors: TDR (BNC)
  • Power: 4 х AA
  • Continuous running from the batteries: 8 hours
  • Overall dimensions: 230 mm*130 mm*50 mm
  • Weight: 0.55 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.

Requested parameters comparision table

Requested parameter Model name Model name
TDR RI-303Т   TDR RI-307M3
Range 3 km, Min. distance 5m 2 m … 4.8 km    1m… 32 km
Accuracy: +/- 1.0% of reading ±0.42%, sampling rate 800 MHz ± 0.01% … 0.2%, sampling rate 3.2 GHz
Resolution: 1 cm 12.5 cm (at VOP = 66%) 3.0 cm (at VOP = 66%) 
Repeatability +/-0.3% of reading Bandwidth 200 MHz Bandwidth 350 MHz
VOP  1.0%-99.0%(0.1% step) VOP = 33.3% … 99.9% (step 0.1%)    VOP = 33.3% … 99.9% (step 0.01%)   
Auto VOP set No No
User settable V.O.P.: 8 memories 1 waveform Waveform Library up to 1000 waveforms
V.O.P. Library up to 300 cables
Auto Power Off: Support Yes Yes
Display: 128*63 character LCD Graphic 3.8" Monochrome (320х240 px)    Graphic Color TFT 5.7" (640x480 pixels)   
Power Supply: 2 LR6(AA) batteries 4 LR6(AA) Li-Ion battery  (7.2±0.7) V, 6.6 Ah.
Operation time: 30 000 times with backlight at least 8 hours    at least 8 hours   
Line voltage detection: +/- 250 mV / 500 kHz The sensitivity of receiving path on all subranges is as same or better as 1 mV The sensitivity of receiving path on all subranges is as same or better as 30 mV
Input protection: DC 48 V DC 40 V DC 40 V
Safety( EMC): EN 55011:2009/ A1:2012/EN 61326-1-2013 Yes Yes
Size: 63x140x30 mm 230x130x50 mm 70x246x124 mm
Environmental: operation - 20…+70°C, storage -30…80°C operating temperature range from -20 to 40°C;
transportation and storage conditions from -50 to 50°C
operating temperature range from -20 to 40°C;
transportation and storage conditions from -50 to 50°C
Accessories: Soft Carrying case, Test Lead Set, Manual TDR RI-303TM - 1 item
Battery, type AA - 4 item
Battery charger - 1 item
Connecting cable 1.5 m - 1 item
Strap - 1 item
User Manual - 1 item
TDR RI-307M3 - 1 item
AC Adapter 12 V - 1 item
Connecting cable 75 Ohm, 5.0 m, BNC.M - «Alligator clip» - 1 item
Connecting cable 75 Ohm, 0.1 m, BNC.M - «Alligator clip» - 1 item
User Manual - 1 item
CD-ROM with software - 1 item
Accessoriesbag - 1 item

Standard set

Delivery Contents

  • Time Domain Reflectometer RI-303TM - 1 item
  • Battery, type AA - 4 item
  • Battery charger - 1 item
  • Connecting cable 1.5 m - 1 item
  • Strap - 1 item
  • User Manual - 1 item