TDR2000/3, TDR2010 and TDR2050 Advanced Dual Channel TDR ■ 600 V CAT IV Input Protection filter built in ■ Step and Pulse TDR selections ■ Distance Dependant Gain ■ Test straight from the box ■ Trace Tagging ■ 2ns pulse width ■ Designed for use on all metallic paired cables DESCRIPTION The Megger® TDR2000/3, TDR2010 and TDR2050 are state of the art, dual channel, high resolution, compact Time Domain Reflectometers with a colour screen for locating faults on paired metallic cables. All TDRs in this series have a minimum resolution of 0.1 m / 0.3 ft and a 20 km / 65 kft maximum range depending on the velocity factor selected and the cable type. Various output impedances are available (25, 50, 75, 100, 125, 140 ohms, model dependent) and an auto impedance matching feature. The velocity factor can be set between 0.2 and 0.99 to meet any cable test requirements. FEATURES AND BENEFITS The TDR2000 series have a large, high resolution, colour, WVGA display with easy set up features. Directional control buttons, together with soft keys, provide intuitive and easy operation for the user. An AUTO selection option ensures that the most effective parameters are selected depending on the range required, aiding rapid diagnosis of the TDR trace. The ability to manually override the auto function allows fine tuning to enable identification of hard to determine faults. Dual trace and dual cursor capabilities allow full flexibility, giving the operator full control and instant indication of distance between two points. A trace comparison feature also allows close examination between trace conditions. Extra high resolution together with a white-light backlight, user definable colour schemes give the graphical display a vibrance, aiding the user in identifying key events on the trace. 600 V CAT IV input protection TDR2050 is the first TDR in this class to include a built-in 600 V input protection filter. The ability to connect to potentially live circuits means a more flexible instrument suited for a wider range of applications. Trace Storage 100 internal trace memories provide for the storage and recall of test results. The traces can be recalled to the display for analysis or compared with an active display to aid in fault location. Alternatively the stored results can be downloaded to a computer, via the USB port, using the TraceXpert software and USB lead provided. Step TDR function The Dead Zone effect of a standard pulse TDR can mask near end faults and make them undetectable. The addition of a step function on the TDR2050 eliminates this problem. Step TDR technology means that the signal is injected at full strength and stays there until a disturbance is detected. This makes step TDR technology perfect for detecting near end faults that standard pulse TDRs can miss. Distance dependant gain This feature, built into the TDR2050, eliminates the drop off of signal attenuation on longer lines by gradually increasing the gain along the returned signal, enabling a more even representation of the relative attenuation at all points along the trace.

Fault identification Megger's own built-in AutoFind mode allows for speedy identification of faults. One press of the AutoFind key automatically adjusts the range and gain, and positions the cursor to the first major event on the cable. Press the AutoFind key again and the cursor will jump to the next detected disturbance. FindEnd function TDR2050 also incorporates a FindEnd function, which allows the user to automatically search the trace to identify the end of the cable under test. This is useful in situations where a fast cable length measurement is required. For those who wish to maintain...

Output pulse Gain Velocity factor TX null Power down Battery Battery charge time Battery life Safety EMC This instrument complies with IEC61010-1 to protect the user in the event of connection to live systems. TDR2050 is rated at 600 V CAT IV whilst all other models are rated at 150 V CAT IV TDR2050 is specifically designed to allow use on energised systems up to the rated voltage. All other models are designed for use on de-energised systems and fused leads must be used if the potential voltage between terminals could exceed 300 V Up to 20 volts peak to peak into open circuit. Pulse widths determined...

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