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Aqura Water Meter and Wet Energy
Measure water consumption and hot water energy with one
meter
Aqura systems precisely meter flow and domestic hot water
energy at each entry point to unit. Aqura meters are installed
at the hot water heater or at each hot and cold water feed
to toilets, tub-showers and sinks. These unobtrusive, wireless
meters then transmit water and energy consumption data by
ZigBee radio each day through a mesh network of ZigBee routers
that blanket the property to a cell modem linked to our data
center.
These state-of-the-art meters can also provide leak detection
diagnostics to help your service team determine leaks before
they become a problem.
The Aqura water and wet energy submetering
system consists of four basic components.
Sika Flow Sensor
 IAPMO
approved water flow sensing assembly, rated at 8 gpm
with maximum 15 psi loss, nominally 2.25 inches long
mounted a) in flexible supply line between the angle
stop and fitting inlet, b) fixed to the tub spout or
shower head inlet, or c) adapted to copper tubing. Flow
sensor housing is made of 100% NSF approved materials
(Noryl, 303 stainless, sapphire, tungsten-carbide, nickel
and ferrite) with sleeve and thrust bearings supporting
a single rotating component. Bearing surfaces are lubricated
and cooled by an integral water pump. Sensor design
life is equivalent to 2 gpm for 55 minutes daily over
20 years when mounted at point-of-use, or 2.4 million
gallons for branch sensors mounted in main supply lines.
Aqura Transmitter
Hermetically sealed battery operated assembly
is permanently attached to the flow sensor. Inside,
a hall cell and a thermistor work with a microprocessor
to record water consumption and energy use. Data is
encoded, stored in non-volatile memory and transmitted
by ZigBee open protocol radio using an encrypted message
format each day. Radio transmissions last less than
0.2 seconds each. One large industrial alkaline battery
provides a guaranteed 5 year life.
Batteries are replaceable.
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Aqura Routers and Gateways
Aqura routers are located in the common area,
or inside selected units, to form a mesh network that
blankets the property. Every meter has at least two routers
it may communicate with, and every router can reach several
other routers to transfer messages. Data is passed along
to redundant gateways, where data is made available on-line
through a cellular modem IP connection, or to a conventional
PC where it can be read or passed along through conventional
phone modem. |
Host Meter Reading System
Each Aqura transmitter serial number is matched against
the database that identifies the meter location. The
system runs diagnostics to identify any plumbing product
malfunctions which are reported to the property manager.
Consumption and diagnostic data is collected by RBC
Utilities on a regular basis. Reports and Bills are
printed and mailed.
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