TDR-420z reflectometer with test declaration WMPLTDR420

Cable fault location and precise measurements with the TDR-420 reflectometer

The TDR-420 reflectometer is a handy, digital device designed to identify and locate faults in power, telecommunications and teletechnical cables. It allows for accurate measurement of cable length and determination of the distance to a fault or impedance change in cables with metal cores, in the range of 4 to 6000 meters. Thanks to the short dead zone (0.6 meters), it is possible to precisely locate faults even near the connection point of the device.

Versatile application for professionals and installers. The reflectometer will be useful for companies involved in electrical installations, maintenance, as well as for wholesalers and cable shops. It is an indispensable tool for quick diagnosis of problems in cable networks.

Precision and functionality in one device. Two independent cursors allow you to simultaneously determine the position of two faults and the distance between them. The color display with a resolution of 320x240 pixels provides a clear image and facilitates the interpretation of measurement results. The built-in help system helps identify the type of fault by comparing the reflectogram with typical anomaly shapes.

• Wide measurement range: from 7 meters to 6000 meters, allowing work with various types of cables and installations.
• High accuracy: measurement error at the level of 1% ensures reliable results.
• Durable construction: housing with IP67 protection degree guarantees resistance to dust and short-term immersion in water, allowing work in difficult atmospheric conditions.
• Intuitive operation: thanks to the color display and help system, operating the reflectometer is simple and intuitive.
• Adjustability: propagation factor (10-99%) and wave impedance allow you to adapt the device to the specifics of the measured cables.

Additional functions increasing work efficiency:

• Single measurement mode (ONCE) and continuous scanning mode (CONT).
• Acoustic signal generator (TONE) to facilitate cable location.
• Impedance matching adjustment up to 200 Ohm (measurements of pre-insulated pipes).
• Automatic device shutdown after a period of inactivity.

The TDR-420 reflectometer is a solid and reliable tool that will allow for quick and precise location of cable faults, minimizing downtime of installations and repair costs. The device meets the PN-EN 61326-1 standards regarding electromagnetic compatibility. Power is supplied by 4 AA alkaline batteries or NiMH AA rechargeable batteries, providing a long operating time – up to 8 hours of continuous scanning.