Digital impulse reflectometer RIF-9 is designed for determining the distance to a fault in communication and power cables.

Digital impulse reflectometer RIF-9 allows:

• Determining the distance to a fault or discontinuity in symmetric and asymmetric cables using a location (time domain reflection) method;
• Measuring the length of a cable (including those wound on a drum) or distance to a fault or a short circuit;
• Storing and processing the results of measurements;
• As part of a cable test van, determining the distance to a fault or discontinuity in cables with length of up to 100 km for all possible fault types without the need of preliminary full cable sheath burning.

• Technical Specifications

  Parameter	RIF-9	RIF-7
  Distance measuring ranges (at V/2=100 m/us),km	0.1; 0.2; 0.5; 1; 2; 4; 8; 16; 32; 64; 100	0.25; 0.5; 1; 2; 4; 8; 16
  Min. distance to be measured, m	3
  Resolution, m:
  − at V/2 = 100 m/us	0.5	1
  − at V/2 = 80 m/us	0.4	0.8
  Uncertainty, % of range	0.2	0.4
  Input impedance, Ohm	10 − 500	30 − 350
  Pulse amplitude, V	45	22
  Pulse width, ns	10 − 20000	10 − 19200
  Dynamic range, dB	from -33 t 104	from -15 t 98
  Reflectograms for averaging count	1 − 255
  Propagation velocity range (V/2), m/us	50 − 150
  Propagation velocity (V/2) resolution, m/us	0.1
  Max. input voltage, V	50	20
  Measuring methods:
  − TDR	yes	yes
  − ICE	yes	yes
  − Decay	yes	yes
  − ARC	yes	no
  Nonvolatile memory:
  − reflectograms with data	1200	120
  − propagation velocity data for cables	1000	200
  PC connectivity	USB, USB Flash, RS-485	RS-232 (COM port)
  Firmware update via USB Flash	yes	no
  Display	color TFT resistive touch-screen  800 × 600	b/w 320×240
  Max. active time (when fully charged), hours	8
  Power specifications:
  − power source (internal)	12 AGM	10×1.2V NiMh
  − power consumption, A	1	0,5
  − power source (external)	12 − 24	12 − 18
  − battery capacity, mA·h	9000	2500
  − charge current, m	1000	500
  − leakage current when power OFF	1	0.02
  Dimensions, mm	366×271×178	295×160×85
  Net weight, kg	8	2.3