TDR-420 Time Domain Reflectometer/ Cable Fault Locator

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Description

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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% [/su_tab] [/su_tabs]

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