The Model CFL510F can be used on any cable consisting of at least two insulated metallic elements, one of which may be the sheath or shield of the cable. The CFL510F has internal matching networks to allow testing of 25-, 50-, 75-, and 100-W cables. (These correspond to power, cellular, CATV, and telephone cable). The FastFind key simplifies waveform interpretation by automatically adjusting the instrument's range and gain and places the measurement cursor at the major event on the cable. The instrument can be closely matched to the cable using the balance control allowing long lengths of cable to be easily tested and faults close to the instrument accurately measured. The propagation velocity value can be similarly adjusted to match the cable; thus ensuring an accurate distance measurement. To enable a wider range of faults to be detected, the gain of the instrument is also adjustable which helps the user identify minor faults over the entire cable length. Other user adjustable settings include changing the distance measurement units between meters and feet and adjusting the propagation velocity units between a ratio and meters per microsecond. Display contrast can be set to compensate for all viewing conditions and a back lit LCD assists in low ambient light conditions.
The CFL510F is housed in a rugged ABS enclosure which is dust and weatherproof to IP54. The unit also comes complete with a carrying case containing lead storage, belt clip, and shoulder straps. It is powered by manganesealkali, nickel-cadmium or nickel-metal-hydride batteries. The batteries are stored in a compartment on the back of the TDR, secured by two screws, and held in a carrier. This not only contains them securely but also allows for a quick change of rechargeable battery packs.