Megger TDR2000/3 time domain reflectometer

The Megger TDR2000/3 time domain reflectometer is suitable for locating cable faults in telecommunications systems. It is compatible with most types of paired metallic cables, has comprehensive dual-channel operation, auto set-up for instant use and good near-end fault location performance as well as internal storage for up to 100 traces.

The large high-resolution backlit colour display is complemented by directional control buttons and soft keys. Dual cursor capabilities allow instant measurement of the distance between any two points on the traces, while the trace comparison feature makes it easy to spot even small differences between traces.

The product has a minimum resolution of 0.1 m, while its maximum range is up to 20 km, depending on the type of cable and velocity factor selected. Velocity factors from 0.2 to 0.99 are supported, allowing the instrument to deliver accurate results with any type of cable. A choice of five output impedances from 25 to 125Ω is offered, together with an automatic impedance matching function.

The time-saving auto set-up option sets the most suitable operating parameters for the instrument depending on the range selected, aiding rapid fault diagnosis. The automatic settings can also be overridden, allowing operation of the instrument to be manually fine-tuned when dealing with challenging faults.

Pressing the Xpert key automatically adjusts the range and gain of the instrument, and positions the cursor over the first major event on the cable. The next key press moves the cursor to the second major event and subsequent key presses toggle the cursor position between the first and second events.

The product has an IP54 ingress protection rating. The colour display uses a damage-resistant bonded screen, with dedicated indoor and outdoor viewing modes to ensure good legibility in difficult lighting conditions. The instrument also has CAT IV 150 V and CAT III 300 V safety ratings, in line with IEC 61010.