1
1
Description
1.1
General
The new HL 5000 Leak Locator is designed to facilitate the
implementation of a complete water leak detection program -
from the preliminary survey, to pre-location, to pinpointing.
Although designed with the water utility in mind, the HL 5000
can also be used for finding leaks in any pipe distribution
network from which pressurized liquid creates sound when
escaping from a leak.
Sound from a water leak is constant; it does not go away.
The HL 5000 utilizes a special feature called Dual Segment
Analysis (DSA) to simultaneously display both the minimum
constant leak sound value of a leak and the total current sound
value. In addition, the results of each measurement can be
automatically stored for a comparison of leak sound levels
along a series of sequential listening points (see Section 3.8
on Memory Mode, pp 18 - 19).
The HL 5000 is the first leak locator that when in leak
detection mode, utilizes computer-enhanced reduction of
extraneous sound. Intermittent impulse sounds/disturbances
are automatically suppressed and do not interfere with the
display of consistent, minimum sound values. There are
times, however, when the ability to receive and focus on
impulse sounds are desirable. When using impulse
generating devices (such as Metrotech s RSP3) to help
locate non-metallic pipes, the HL 5000 should be placed
in Pipe Location Mode (see Section 3.10 on Pipe Location
w/RSP3 on p. 20).
