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
- Operating Conditions
The device is designed for indoors operation under the following conditions:
| Condition |
Value |
| Air temperature, °С |
from -10 to +40
|
Relative humidity, %, up to
|
80 at +20° С |
Atmospheric pressure, kPa (mm hg)
|
84,0 – 106,7 (630 – 800) |
| 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 tо 104 |
from -15 tо 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 |
10АА×1.2V NiMh |
− power consumption, A
|
1 |
0,5 |
| − power source (external) |
12 − 24 |
12 − 18
|
| − battery capacity, mA·h |
9000 |
2500 |
| − charge current, mА |
1000 |
500 |
− leakage current when power OFF
|
1 |
0.02 |
Dimensions, mm
|
366×271×178 |
295×160×85 |
Net weight, kg
|
8 |
2.3 |
|