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TDR-410 | TDR-420 Reflectometer

TDR-410 and TDR-420 are designed to detect where faults in metal wires are. These products are designed for electrical wholesalers and cable dealers, electrical installation companies, maintenance personnel at manufacturing plants and building personnel. These devices meet the expectations of all those who have to accurately locate a fault and wire end in either power or telecommunications cables.

Manufactory: SONEL S.A. (Poland).

Features
  • Fault location in power and telecommunication cables
  • Two independent cursors to indicate two fault locations and the distance between them (TDR-420)
  • Fault location in coaxial cables
  • Fault location in infrastructure cables
  • Detection of breaks, short-circuits, damage caused by moisture and other changes in cable impedance
  • Graphic presentation of cable faults with an indication of the distance to the fault on the display

 

TDR-410

TDR-420

Measuring ranges

7 m / 20 ft
15 m / 45 ft
30 m / 90 ft
60 m / 180 ft
120 m / 360 ft
250 m / 750 ft
500 m / 1500 ft
1 km / 3000 ft
2 km / 6000 ft
3 km / 10000 ft
4 km / 14000 ft

7 m / 20 ft
15 m / 45 ft
30 m / 90 ft
60 m / 180 ft
120 m / 360 ft
250 m / 750 ft
500 m / 1500 ft
1 km / 3000 ft
2 km / 6000 ft
3 km / 10000 ft
6 km / 20000 ft

Accuracy

1% of selected range

Resolution

approx. 1% of range

Minimum cable length

4 m

Velocity of propagation

within 1…99% or 1…148 m/μs

within 10…99% or 15…148.5 m/μs

Output impulse

5 Vp-p for an open circuit

Output impedance

25, 50, 75, 100 Ω

25, 50, 75, 100, 125, 200 Ω

Impulse width

3 ns…3 μs (depending on the range)

Scanning type

2 scans/s or a single scan

up to 3 scans/s
or a single scan (ONCE mode)

Generated acoustic signal

810 – 1100 Hz

Operating time on a full battery

up to 30 hours of continuous scanning     

up to 8 hours of continuous scanning

Power supply

4 x alkaline batteries 1.5 V AA type

4 x alkaline batteries 1.5 V AA type
or 4 x NiMH AA rechargeable batteries

Auto-off function

1, 2, 3, 5 minutes or deactivated

1, 5, 10, 15 minutes or deactivated

Display

graphical, backlit, 128 x 64 pixels

colour 3.5” LCD TFT, 320 x 240 pixels

Overvoltage protection

400 V DC / 250 V AC

Operating temperature

-10...+50°C

-20...+70°C

Storage temperature

-20...+70°C

-30...+80°C

Dimensions

165 x 90 x 37 mm

220 x 98 x 58 mm

Weight

350 g

487 g

Electromagnetic compatibility standards (EMC)        

EN 61326-1

Degree of protection / tightness

IP54

IP67


Standard accessories:

  • TDR-410 | TDR-420
  • double-wire test lead 0.6 m
  • crocodile clip 1 kV 20 A red / black
  • M1 hanging straps (TDR-420)
  • 4x batteries alkaline 1.5 V AA
  • M-6 carrying case (TDR-420)

Optional accessories:

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