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TX4000 Cable Fault Locator
Graphical Time Domain Reflectometer and Toner
with 4Km range & 1% accuracy



  • Suitable for testing all Communication
    and Power Cables
  • Auto Fault Location
  • Scan Lock Feature
  • 11 Measurement Ranges up to 4000m
  • 0.5 m Dead Zone
  • 25, 50, 75 & 100 Ohm Selectable Cable
  • Built in Tone Generator for Pair Tracing
    and Indentidication
  • Rugged Palm-Top design weighs less
    than 350g (12oz)
  • Large 128 x 64 LCD with Backlight
  • Scratch Resistant Display
  • Environmental Protection IP54
  • 3 years Manufacturers Warranty
  • 60 Hours Battery Life
  • Easy to Use
  • Complete with Soft Bag and Test Leads

TX4000 Graphical TDR Cable Fault Locator
New Lower Price:
475.00 excluding VAT and Delivery

See our
Terms & Conditions and Returns Policy
before purchasing.

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TX4000 Features

The TX4000 is a hand held Time Domain Reflectometer with 11 range scales covering the range 0-4000 meters, with a 7 meter first range scale and a 0.5 meter dead zone near and far end faults are clearly displayed on its 128x64 pixel back light Liquid Crystal Display.

The Auto Fault Location key will move the cursor directly to the first event or fault, thus eliminating the need to visually interpret the wave form. When set in manual mode, the wave form may be visually scanned as on conventional TDRs. In both modes the user variable gain covering the range of default to 64 db's may be used to magnify small events identified on the waveform. The scan lock feature will allow the user to hold the trace for closer examination.

Designed for identifying and locating faults on all metallic cables with two or more insulated conductors. The TX4000 has impedance matched circuits for 25, 50, 75 and 100 ohms and with velocity of propergation settings from 1-99% (or the equivalent in feet or meters/micro second) will cover the range of power, data, communication and CCTV cables.

Housed in a rugged IP54 rated ABS enclosure and weighing only 350 grams (12 ounces), the TX4000 is suitable for outside use.



TX4000 Specifications

Ranges @ Vp-70%

Meters: 7, 15, 30, 60, 120, 250, 500,
1km, 2km, 3km, 6km
Feet: 23, 49, 98, 197, 394, 820, 1640,
3280, 6560, 9850, 19000

Power Supply 6v (4 x AA cells)
Range Selection Manual range control
Power Down Selectable 1, 2, 3, 5 minutes or disabled
Resolution Approximately 1% of range

Backlit Display

128 x 64 pixels
Accuracy 1% of selected range* Voltage Detection 250 volts AC
Sensitivity min 3 pixel return at 4km
on 0,6mm, PE, TP
-20 to 70 deg. C
Velocity Factor Adjustable from 1% to 99% Operating Temperature 10 to 50 deg. C
Output Pulse 5v p-p into open circuit Dimensions 165 x 90 x 37mm
Output Impedance Selectable 25, 50, 75 and 100 ohms Weight 350gms (12oz)
Output Pulse
3ns min to 3ms, automatic range Water/Dust Proof IP54
Scan Rate 2 scans / second or scan held
(not on 3km/6km range)
Safety IEC61010-1
EN 60950
Tone Generator 810 - 1110 Hz EMC BS/EN61326-1
Battery Life 60 hours co-ntinuous scanning a a

*Measurement accuracy of +/-1% assumes the instrument setting for velocity
of propagation (Vp) of the cable under test to be accurately set, homogeneity
of the Vp along the cable length, and accurate cursor positioning.



Ordering & Payment

Before placing your order, please familiarise yourself with our Terms & Conditions and Returns Policy.

Delivery: please note that Cable Testers are shipped by Courier delivery only. For further details see our Delivery page.

Please contact us to obtain a quotation for quantity orders.


TX4000 Graphical TDR Cable Fault Locator
New Lower Price:
475.00 excluding VAT and Delivery

View your shopping basket


Package Contents
The TX4000 comes complete with tool-belt holster and croc clip adaptor.

Payment Methods

Payment may be by card or cheque. We accept Mastercard Credit, Mastercard Debit, Visa Credit, Visa Debit, Visa Electron, Maestro and JCB cards.

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Order enquiries

Please call Christeen Alexander +44 (0)118 977 5710 or email:

ComputerWare UK, 7 Greenwood Grove, Winnersh, Berkshire, RG41 5LH, UK


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