Supply Water Leakage Protection System type BBU
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Principle
Supply Water Leakage Protection System type BBU employes flow measurement calculated from the
output from a high-resolution pulsing ultrasonic water meter.
Two monitoring functions are used together with the calculated flow values for protecting the installation
from leakage, as the BBU closes the cut-off valve when a leak is detected by either monitor.
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PSALM®
PSALM® is a
data processing method using the flow spectrum to dynamically calculate discharge, so that
this may decline when flow reduces. Thereby in a given installation operation will be possible at a
lower alarm limit or, given an alarm limit, more consumers can be tolerated.
PSALM® can alos compensate to a degree for the data reduction resulting
from limitation s in time or volume resolution of a flow meter.
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Logging
Alarm and Event log
BBU maintains a log of the 250 most recent events and alarms, such as power up/down, alarm and error messages,
acknowledgements and automatic resets, key input, control signal changes, state changes and sequence execution.
Jumper log
BBU maintains a log of the 15 most recent setting changes of the internal jumpers.
These logs contribute to the investigation and documentation of actual events.
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AERS
On delivery, BBU is prepared for attachment to the DanTaet Alarm and Energy Registration System
AERS, which conveys leakage alarms to the customer and illustrates events.
AERS transmits alarms in the form of text messages and/or e-mail, and alarms may be remotely acknowledged from the recipient's
smartphone, tablet, laptop or PC.
Example: situation view from AERS.
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| System |
Capacity and head loss |
Dimnensions |
Nom. Cap.
Qn (m³/h) |
ΣΔp@Qn |
Equivalent
Kvs (m³/h) |
| (mvs) |
(kPa) |
Flow Meter |
Valve |
| BBU-1,6 |
1,6 |
2,68 |
26,8 |
3,09 |
½" x 110 mm |
½" x 75 mm |
| BBU-2,5 |
2,5 |
3,41 |
34,1 |
4,28 |
¾" x 190 mm |
¾" x 80 mm |
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The DanTaet systems are covered by patents issued and pending and copyright in
Denmark and a number of countries within and outside the EU.
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