SONEL TDR420 Time Domain Reflectometer

The Sonel TDR-420 is a hand held Time Domain Reflectometer designed to identify and locate faults in power, telecommunications and teletechnical cables. TDR-420 reflectometer allows to measure the length of the cable and determine the distance to damage or impedance variation in the range of 4 m to 6000 m in conductors with metal wires. The shortest measuring range of 7 meters and a dead zone of 0.6 meters allows to locate damages at a very close distance from the place where the device is connected.

Two cursors allow to determine the place of two damages simultaneously and the distance between them. Thanks to the color 3,5” TFT display with a resolution of 320 x 240 pixels, the indication of the location of the damage is precise and the results easier to interpret.

TDR-420 Time Domain Reflectometer
Possibility damage-free location of impedance changes of tested cables and wires.
Fault location in power and telecommunication cables
Fault location in coaxial cables
Fault location in infrastructure cables
Graphic presentation of cable faults with an indication of the distance to the fault on the display
Single measurement mode ONCE
Continuously measurement mode CONT
Tone signal generator TONE
Two cursors to mark two places of damage along with an indication of the distance between them
Built-in HELP function for easier interpretation of the reflectogram
11 available measuring ranges from 7 m to 6000 m
"dead zone” limited to 0.6 m
Color 3,5” LCD TFT display with resolution 320 x 240 pixels
manually set of sensitivity in 8 steps GAIN
output impedance regulation up to 200 Ω (possibility of measuring pre-insulated pipes)

In The Box
TDR-420 Time-domain Reflectometer
WMGBTDR420 two-wire cable 0.6 m for TDR
WAPRZ0X6DZBB red crocodile clip 1 kV 20 A
WAKRORE20K02 black crocodile clip 1 kV 20 A
WAKROBL20K01 M1 hanging straps
WAPOZSZE4 case M6
WAFUTM6 alkaline batteries 1.5 V AA (4 pieces)
user manual