Supply Water Leakage Protection System BBU

system BBU Application:
Domestic Supply water Installations

  • High-Resolution Pulsing Ultrasonic Water Meter
  • Stainless Cut-Off Valve
  • BBU Controller with 12 months'
    attachment to AERS
Ill.: system BBU-1,6

Monitoring Functions

Issued when the volume of a single, continuous discharge exceeds a preset limit.
A discharge is considered continuous as long as its indicated flow exceeds the preset cut-off value, or as long as the indicated flow does not decline (PSALM®).

Seepage Alarm:
Issued when the flow of the installation fails for an entire test interval (normally 24 hrs) to drop below a preset limit.

System Fault:
System Fault is issued when the cutoff valve fails to close tight, when an internal voltage supply fails, and when no flow is registered for an appreciable time out of Holiday mode or in High Consumption phase.
System Faults do not cause installation cut-off.

Operating Modes:
Monitoring employs different sensitivgities in High and Low Consumption phases. Switching between phases can be manual (Holiday Button), automatic via AIA (burglar alarm) or automatic via attached PIR motion sensors.
When 'Unlimited' is activated, the current discharge limit may be exceeded without raising an alarm; this condition is revoked automatically upon expiry of a pre-set time, or if the key is reactivated before that.

Alarm Functions

On leakage errors, system BBU cuts off the installation, issues alarm visibly and audibly at the front panel, and deactivates the alarm relay.
System faults are reported via an alarm relay, and visibly and audibly if possible. Valve errors are reported visibly.
When attached to AERS, system BBU can send a text message upon alarm.


Controls and Indicators:
Status-, Data- and Alarm Indikators, Buzzer.
Keys for Alarm Mute and Acknowledge, Manual Valve Control, Unlimited and Holiday Select.
Two digital control inputs, three digital outputs and two fail-safe floating SPDT alarm/signal relays

Permissible discharge adjustable 10-20-50-100-200-500-1000-2000 liters.
Cutoff adjustable 10-20-50-100-200-500-1000-2000 l/h.

Seepage Alarm:
Idle Period adjustable 10-20-50-100-200-500-1000-2000 sec.
Tolerance adjustable 1-2-5-10-20-50-100-200 impulses

Valve Tightness Check/Exercise:
Execution: 1x/day.

Mains Connection:
230V 50Hz L/N/PE via key switch.
Power Consumption 20VA.



Liquid Sensor Attachment:
System BBU may via interface ILS-C accept up to two liquid sensors LS-X, providing select protection of sensitive areas with optional cut-off.

Text Message Alarm:
By attachment to AERS system BBU may text any mobile phone on alarm.


Download System BBU data sheet in pdf format