In Stock Now and ready to ship!

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.

fault location in power and telecommunication cables
two independent cursors to indicate two fault locations and the distance between them
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

Sonel TDR-420 Time-Domain Reflectometer 6000m 1% Accuracy TDR

US$1,849.00

Quantity

Product features

Possibility damage-free location of impedance changes of tested cables and wires such as:

shorted conductor,

open conductor / end of cable – useful during the inventory of warehouses and stores,

splice,

splitter,

water ingress,

wet splice,

bridge tap

or other changes.

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),

Velocity of Propagation set in range from 10% to 99%,

tight and durable housing with IP67 ingress protection degree.

Small size and weight.

Technical specification

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

Accuracy:1% of selected range

Resolution: Approx. 1% of selected range

Min. Cable length: 4 m / (14 ft)

Velocity of propagation VoP: Adjustable from 10 to…99% or 15…148,5 m/µs

Output Pulse: 5 Vp-p (open circuit)

Output Impedance: 25, 50, 75, 100, 120, 200 Ω

Output Impedance: 3 ns…3 µs (depends of range)

Scan rate / mode: Up to 3 scans / second (CONT) or single (ONCE)

Tone generator: 810 ... 1110 Hz

Battery Life: Up to 8 hours of continuous scan

Power supply: 4 x alkaline batteries 1.5 V type AA or 4 x rechargeable batteries NiMH AA

Auto-OFF: 1, 3, 5, 10, 15 minutes or deactivated

Display: Color 3,5” LCD TFT, 320 x 240 pixels

Voltage protection: 400 V DC / 250 V AC

Dimensions: 220 x 98 x 58 mm (8.7 x 3.9 x 2.3 inches)

Weight: 487 g

Electromagnetic standard compatibility EMC: EN 61326-1

Water/ Dust Proof: IP67

Nominal condition of use

Operating temperature: -20..+70°C

Storage temperature: -30...+80°C at humidity <80%

Sonel TDR-420 Time-Domain Reflectometer 6000m 1% Accuracy TDR

Ordering Information

Technical Specifications

Related Products

STORE

STORE

For Sales, Calibration, or Repair Services Call