KE-TDR20 – Kurth Electronic


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Time domain reflectometer for up to 32 km cable length.

SKU: 0.490326 Category:

Dual-port for comparison measurements, xTALK etc. Graphical colour display, result memory and built-in rechargeable battery. Incl. power supply, test leads, PC software and bag.

Ranges (V/2=100 or V/2=10 for loaded cable) For non-loaded cable: 16 m, 32 m, 64 m, 160 m, 320 m, 1600 m, 3200 m
For all cables: 6400 m, 16,000 m, 32,000 m
Maximum range depends on cable features.
Evaluation of results With cursor and marker in meters
Zoom Off, 2.5x, 5x
Resolution With zoom: 0.06% of range
Without zoom: 0.03% of range
Accuracy Sampling 0.01 m
Gault location 0.2% od range
Propagation velocity For non-loaded cables: V/2 45 to 150 m/μs, VOP 30 to 99%
For all cables: V/2 1.2 to 30 m/μs, VOP 0.8 to 20%
Measuring modes L1
L1 & L2
L1 - L2
Pulse characteristics Amplitude: max 12 V peak to peak into 120 Ohm
Widths for non loaded cables: 3, 6, 10, 30, 60, 100, 300, 600 ns, 1, 3, 6 μs
Width for loaded cables: 330 μs
The provided pulse width changes with range.
Amplitude: Peak to peak 1.3 to 12 V into 120 Ohm
The pulse amplitude changes with gain and width.
Gain control Range 0 to 90 dB
Steps 6 dB/step
Line connection Impedance 120 Ohm balanced
Input protection 350 V RMS 50 Hz 500 V DC
Balance control 50 to 270 Ohm
Memory space 50 waveforms
10 setups
10 user stored PVF values
30 standard cable parameters
Power supply Internal rechargeable NIMH battery pack, operation time approx. 8 hours (60 % duty time)
Charging (without taking the battery pack out) from 230 V mains with mains adapter / from 12 V car battery with car adapter
Charging time approx. 3 hours (fast charging mode)
Connectors For mains or 12 V car adapter: 2.1/5.5 mm coaxial
L1 and L2 line connectors: 4 mm banana sockets
USB B: USB 1.1 device port to connect to PC
Display 320 x 240 colour LCD
Ambient temperature range Operating: -10 to +50 °C
Storage and transport: -20 to +70 °C
Dimensions 200 mm x 100 mm x 40 mm
Weight 0.8 kg
Menu languages English, German, Russian
KE-TDR20 Data Sheet 114.78 KB
KE-TDR20 Manual 548.68 KB

Product Catalogue

Kurth Electronic catalogue 16.90 MB