Kamstrup flowIQ 3100 - Optional Data Logging Configuration Diagram

flowIQ
®
3100 TECHNICAL DESCRIPTION
25
Kamstrup A/S • Technical Description • 5512-1242_B1_GB • 05.2015
Info code - BURST
This info code is activated if the flow exceeds a given value for a continuous period of 30 minutes.
This can be a sign of a burst in the pipe installation which requires prompt action.
The size of the 30-minute flow (which prompts the info code BURST) can be determined by the customer
when submitting the order. The following options are available:
Bursting surveillance
P=
Constantly high flow alarm is activated at:
0
OFF
1
Flow > 5 % of Q3 in 30 minutes
2
Flow > 10 % of Q3 in 30 minutes
3
Flow > 20 % of Q3 in 30 minutes
The info code BURST disappears when the flow falls below the above-mentioned limit. It can take up to 64
seconds after the flow has fallen below the above-mentioned limit until the info code disappears.
Utilities must be aware that water consumption which activates the pipe BURST alarm of flowIQ® 3100 may
occur in systems with many connected households. Users and water utilities must, therefore, be critical of
the burst alarm.
BURST is saved with a date stamp in both the daily register for 460 days and the monthly register for 36
months. Furthermore, it is saved in the info code register of the latest 50 info code events. Together with
the info code event a time indicator with 7 time intervals, which indicates how long the info code has been
active, is registered.
The Wireless M-Bus signal comprises the BURST code. If the BURST code is active, or has been active within
the latest 30 days, a time indicator, with 7 time intervals, will indicate how long the info code has been
active.
Info code - TAMPER
This info code becomes active if flowIQ® 3100 has been exposed to unauthorised access, i.e. an attempt to
cheat. This means that the meter is no longer valid for billing purposes. The info code TAMPER cannot be
removed.
If the info code TAMPER is active, no other info codes can be read via the Wireless M-Bus signal.
Info Code – DRY
This info code indicates that there is air in the meter. The ultrasonic measuring principle implies that the
meter must be water-filled. If there is air in the meter, nothing is measured.
The info code DRY is activated in the display when 8 successive measurements have shown that there is air
in the meter, i.e. after minimum 32 seconds and maximum 64 seconds.
The code disappears after one measurement without air, i.e. after 4 seconds.