User Manual

Chapter 2
Theory of Operation
2.1 General Description
The
Speed HPTx
is the first link in the water readings collection system. It is an
independent unit that does not require an external power source, wiring, or the
preparation of an infrastructure.
The unit is installed in proximity to the water meter/s and is connected to several
adjacent meters.
Figure 2-1 (see next page) shows a typical installation of a
Speed HPTx
unit,
connected to several meters (of various types) at a single location. The unit can be
connected to any type of meter which has a pulsed output (a passive magnetic
open/short reed relay).
The
Speed HPTx
acquires the consumption data from the water meters and stores
this data in its memory. The unit includes a miniature RF transmitter which transmits
data on a periodic basis to a regional concentrator.