Megger TDR2000-3 Telecoms Time Domain Reflectometer

Key Features:

• Backlit graphics colour LCD (800x480)
• Adjustable display contrast
• Resolution to 0.1 m
• AutoFind guide to potential fault location
• 100 trace on board memory
• USB connection to PC allowing upload and download of traces
• “TraceXpert” PC software analysis tool
• For use on Telecom TNV-3 circuit, or 150 V CAT IV power circuits (TDR2000/3 and TDR2010 only)
• For use on power circuits to 600 V CAT IV (TDR2050 only)
• Power blocking filter built-in
• Environmental protection to IP54
• Selectable output impedance TDR2000/3 and 2010: 25, 50, 75, 100, 125 ohm + AUTO. TDR2050: 25, 50, 75, 100, 140 ohm + AUTO.
• 2ns pulse for near-end fault location
• AUTO option selecting gain and pulse for each range
• AUTO option matches output impedance to cable
• Display distance in metres or feet
• Li-ion rechargeable battery (12 hours typical life)

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 (TDR2000/3 and 2010: 25, 50, 75, 100, 125 ohm + AUTO. TDR2050: 25, 50, 75, 100, 140 ohm + AUTO) 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 & 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 builtin 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 manual control, manual operation allows full override access to refine the response for easy fault identification.
Colour schemes
The very different light conditions that could be present when using the TDR2050, combined with the limitations of eye conditions such as colour blindness, makes the addition of set colour schemes in the instrument extremely important. TDR2010 and TDR2050 have 6 additional set colour schemes on top of the Default and Outdoor schemes included on other Megger TDRs. There are also 2 custom slots where the user can specify their own scheme by setting up to 7 screen elements to their own choice of colour.
Trace Tagging
TDR2010 and TDR2050 also incorporate a Trace Tagging feature which allows the user to add a name to saved traces. This could be the circuit ID, building name or any other identifying text the user wishes to save with the trace. A text string of up to 32 alphanumeric characters can be stored against each trace and this can consist of upper case letters including accents.
TraceXpert PC software
The TDR2000/3, TDR2010 and TDR2050 come complete with the Megger TraceXpert software which gives full control over downloading, reporting and uploading of saved trace results. Designed around a database and programmed for ease of use and simplicity, TraceXpert offers the ideal application for all your data processing requirements.