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TDR assists with cable fault detection

Joe Bush, Editor

04/08/2014

Tags: Test & Measurement

Topics: Test & Measurement

New from Megger is a handheld time domain reflectometer (TDR) that locates faults on mixed paired metallic cables. The CFL535G can test connections and locate faults for up to 12 miles.

The TDR features dual channel capability and dual aspect display and allows technicians to compare cable pairs with each other and determine if one is
faulty, based on differences shown on the TDR.

The CFL535G is well suited for use by telecommunications technicians and electrical service contractors on all metallic pairs including twisted pair copper, concentric or coax cables, and it establishes a benchmark for future comparison, measures cable length, locates and evaluates splices and joints, and detects cable taps.

The CFL535G features a 2ns pulse width that nearly eliminates dead zones and provides a real time trace for tested cables giving quick and accurate results. It also offers two inputs that enable simultaneous measurements of two different cables.

An auto set-up mode for instant use is also incorporated into the TDR. This helps determine the impedance of the cable under test, sets the instrument accordingly and selects the optimum gain and pulse width.

The CFL535G features Megger’s Xpert mode. This allows for rapid identification of faults by pressing the Xpert key. The unit then automatically adjusts the
range and gain, while positioning the cursor to the first major fault on the cable.

The unit’s trace hold and overlay feature is used for comparison between cables for both live and saved traces. A high resolution display comes as standard
and the unit also features ‘bed of nails’ test leads.

These reliable contact leads allow for quick and simultaneous contact with hundreds of individual test points within the circuitry of a DUT.

The TDR is IP54 rated and is powered by a long life rechargeable Li-Ion battery. The CFL535G has an operating temperature of -15°C to 50°C.

Megger www.megger.com
T: 01304 502 101

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