The purpose of the CZ2500 is to correctly identify a specific cable pair in a random jointed telephone cable when cable markings have disappeared, and cabling plans are outdated or inaccurate. The base unit has been built with an intercom, and a transmitter which sends out a tone along the selected pair from the base unit. The hand held receiver, at a remote location, determines the pair containing this signal. The unit has audio short and the A-B Leg identification functions. The built-in intercom feature, when combined with a second transmitter, enables communications in the field to be carried out cheaply over any vacant twisted pair.
Specifications are subject to change without notice.
The combination of micro-processor and precision analogue circuitry provides fast and accurate measurement to fault location. Thus no charts or manual calculations are required when using the CZ3000. Inbuilt simulated fault terminals allowing the operator to verify the performance of the CZ3000 at any time. Simply enter the section lengths and gauges, and the instrument will calculate the correct distance to fault. Uses superposition measurement to determine insulation resistance in the presence of foreign voltage.