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Dismounting of module and meter detection
The detection is possible at all meters with grey
register cap. A hall sensor detects here as soon as the
EDC module was dismounted from the register.
Leakage detection
If over a period of 24 h (96 quarter hour values) the
flow value is never zero, than this indicates a leak.
The EDC module sets corresponding bits.
If the flow rate remains zero during one quarter of an
hour (before reaching 96 quarters of an hour with no
flow) the algorithm restarts.
If 96 quarters of an hour were running with flow,
leakage remains set until during 8 quarters of an
hour in a row the flow remains zero.
Meter Stop detection (blockade)
If no meter progress will be detected by the EDC
module over a period of 4 weeks, meter stop
(blockade) is detected. The blockade deemed to be
revoked if a meter reading difference of > 10 liters
occurs in a quarter of an hour.
Meter oversized detection
Meter is oversized when the flow rate never exceed
0,1*Q
(10 % of Q
). This is averaged over a 15-minute
3
3
period. It is counted how many times the flow rate
of 10 % of Q
is not achieved. If the flow rate is not
3
reached after 30 days "meter oversized" is detected.
12. Overview of possible status / error messages
The messages listed below can either appear in the MSS configuration software or occur via a radio
telegram as a status message. Some messages can be reset on site after clarifying the situation using the
configuration software.
Message
BACKFLOW
BACKFLOW_A
BATT_LOW
BLOCK_A
BURST
LEAK
LEAK_A
INTERFERE
REMOVAL_A
TAMPER_A
OVERSIZE
UNDERSIZE
PERMANENT_ERROR
TEMPORARY_ERROR
Description
Detection reverse flow (currently detected)
Reverse flow detection (was present)
Battery warning
Blockage detection (was detected at some point)
Burst detection (currently)
Leakage warning (currently detected)
Leakage warning (was present)
Removal and/or tampering is currently being detected
Removal has been detected at some point
Manipulation detection (was present)
Meter oversized warning
Meter undersized / burst warning
Device error, device defect
Temporarily pending error
If once a flow rate of > 10% from Q
reached by a quarter of an hour, the detection is per-
manently disabled and the status "meter oversized"
deleted.
Meter undersized detection
If the flow rate is continuously higher as Q
nent flow) over a 6-hour period, this indicates an
undersizing of the meter and the message "meter
undersized" will be detected. This is averaged over a
15-minute period.
Pipe burst detection
For EDC modules with M-Bus and Pulse: "Pipe burst"
is detected when the flow rate has exceeded a given
value (> 30% of Q
) during a 30-minute period. This is
3
averaged over a 15-minute period.
Reverse water flow detection (wrong assembly)
If after installing, the EDC module detects that the
meter is running backwards each ¼ hour for 12
hours, reverse water flow is detected (wrong as-
sembly). If the meter runs forward for 4 hours, the
message shall be considered as finished.
Action
if necessary, check at the measuring point
if necessary, check at the measuring point
Plan device exchange
if necessary, check at the measuring point
if necessary, check at the measuring point
if necessary, check at the measuring point
if necessary, check at the measuring point
if necessary, check at the measuring point
if necessary, check at the measuring point
if necessary, check at the measuring point
if necessary, check at the measuring point
if necessary, check at the measuring point
Replace device
if necessary, read out the unit again at a
later time
, averaged, is
3
(perma-
3
15
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