Cable Fault Locator TDR RI-10M2 “SWIFT”
with Bridge module

TDR RI-10M2  is a compact cable fault locator combines function of TDR and Cable Bridge, designed to determine the nature and location of the irregularities and damages of the cable line (opens, shorts, wet/corroded splices, water in the cable, load coils, bridged taps, unknown splices, splits and re-splits, capture intermittent fault etc.),

Cable Fault Locator TDr RI-10M2

as well as for measuring the main parameters of cable lines using bridge method (loop resistance, insulation resistance, capacitance, cable asymmetry, voltage, distance to leakage and breakage).

Designed for measurements on balanced and unbalanced cables.


Sphere of application

TDR-10M2 is used to control the laying and operation of the following types of cables:

  • System Cables Communications;
  • Signal and Control Cables ;
  • Power cables;
  • Aerial cable lines;
  • Computer Networks;
  • TV and radio cable lines;
  • to determine the length of the cable in its production, storage and trade.

Cable bridge is a universal measuring device, which includes a set of schemes implemented by DC bridges and ballistic measurement method. Using measurements of the proposed schemes, we can determine the parameters of the cable (loop resistance, insulation resistance, resistive asymmetry, electric capacitance), and calculate the distance to the fault (open, low insulation resistance, short circuit). Microprocessor processing enables to automate calculations and automatically selects the measurement range.



Types of measurements provided by the TDR unit:

  • cable length measurement;
  • measuring distances to impedance discontinuities or damages;
  • measurement of the velocity factor of the line to its length known;
  • determines the nature of injuries;
  • Types of measurements provided by the cable bridge unit:
  • loop resistance measurement;
  • insulation resistance;
  • measurement of capacitance;
  • measurement of DC and AC;
  • resistance difference definition;
  • determination of the distance to the point of reducing the insulation;
  • determination of the distance to the point of breaking the cable core;
  • determine the distance to a short-circuit cable wires.
  • insulation test voltages.

Technical specifications


The range of distance measurement  (time delay)from  0  to 50000 m  (from 0 to 500 μs)
Subranges measurements0 – 125m(0 – 1.25 μs); 0 – 250 m (0 – 2.5 μs); 0 – 500 m  (0 -5 μs); 0 – 1000 m  (0 – 10 μs); 0 – 2500 m  (0 – 25 μs);      0 – 5000 m  (0 – 50 μs); 0 – 12500 m  (0 – 125 μs); 0 – 25000 m  (0 – 250 μs);
0 – 50000 m  (0 – 500 μs)
Instrumental error of the distance measurementfrom 0.04% to 0.4% depending on subrange measurements
Effective sampling rate200 MHz
Range of impedance matchingfrom 25 Ω to 600 Ω
Pulse widthfrom 10 ns to 50 μs
Pulse amplitude10 V on the matched load
Sensitivity receiving tract1 mV (80 dB)
VOP33.3% … 99.9% (step 0.1%)

Cable-Bridge mode:

Limits of permissible absolute error of measurement of the loop resistancein the range of 1.0 ohms to 9900 ohms ± (0,005 R +0,2) ohms
Limits of permissible absolute error of measurement of the insulation resistancewhen measuring DC voltage (180 ± 10) Vin the range of from 10 ohms to 999 кohms ± 0,01 R
in the range from 1 to 999 MOhms ± 0,02 R
in the range from 1000 to 10,000 MOhms ± 0,1 R
Limits of permissible absolute error of measurement of electrical capacitanceranging from 1 nF to 3000 nF ± (0,1 C 1) nF
Limits of permissible absolute error of measurement of the DC voltagein the range from 1 V to 200 V ± (0,01 U +1) V
Limits of permissible absolute error of measurement of AC voltage frequency (50 ± 5) Hzranging from 10 V to 250 V ± (0,02 U +2) V


Displaymonochrome 3.8 “(320×240 pixels)
Continuous operating time on battery powerat least 8 hours
Time of continuous operation through the power supplyUnlimited
Overall dimensions110х230х190 mm
Operating Temperature Rangefrom -20 °С to +40 °С
Weight of device with batterynot more than 2.0 kg