The RD500 is an effective instrument for locating and tracing buried plastic and/or concrete water pipes. The RD500 traces plastic water pipes over distances up to 150m/yds from the point of application of the TransOnde Transmitter. The unit is low cost, quick and easy to use. Operators learn to locate and trace the RD500 in a few minutes.
How the Locator Works
The RD500 is in two parts; the TransOnde Transmitter which is fi tted to a fi re hydrant, meter base or tap, and the hand-held Receiver to trace buried pipe away from the TransOnde. The TransOnde applies a distinctive wave signal along the pipe that is located by the seismic sensor in the receiver. The signal is then amplified to provide a response on the RD500 meter and in the headphones.
The RD500 gives its best performance locating a single pipe running under grass, soil or pavement. Between 30 psi/2 bar and 75 psi/5 bar water pressure and adequate flow, the receiver will trace the line over distances up to 150m/yds. Locate resolution is 25% of depth along the length of the trace with the pipe at depths down to 2m/6ft. Locating may be reduced when the pipe runs under pavement or concrete. The TransOnde pressure wave signal is dissipated, therefore the receiver peak response is spread over a wider area.
Locate range may be reduced at the point where the pipe goes into a tee or joins a larger pipe, the TransOnde pressure wave signal is either split or reduced.