11
Meter oversized detection
Meter is oversized when the flow rate never exceed
0,1*Q3 (10% of Q3). This is averaged over a 15-min-
ute period. It is counted how many times the flow
rate of 10% of Q3 is not achieved. If the flow rate
is not reached after 30 days “meter oversized” is
detected.
If once a flow rate of > 10% from Q3, averaged, is
reached by a quarter of an hour, the detection is per-
manently disabled and the status "meter oversized"
deleted. The algorithm can be restarted via opto
head.
Meter undersized detection
If the flow rate is continuously higher as Q3 (perma-
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.
The event memory stores the date and time of the
event.
Pipe burst detection
“Pipe burst” is detected when the flow rate has
exceeded a given value (> 30% of Q3) during a
30-minute period. This is averaged over a 15-minute
period.
The event memory stores the date and time of the
event.
9. Disposal
This device contains a non-removable and non-
rechargeable lithium battery.
Batteries contain substances, which could harm the
environment and might endanger human health
if not disposed of properly. To reduce the disposal
quantity so as unavoidable pollutants from electrical
and electronic equipment in waste, old equipment
should be reused prior or materials recycled or
reused as another form. This is only possible if old
equipment, which contains batteries or other acces-
sories are disposed.
Therefore please contact the department of your lo-
cal authority which is responsible for waste disposal.
Alternatively a waste disposal via ZENNER is pos-
sible. Your local or municipal authority or the local
waste disposal company can give you information
relating the collection points for your used equip-
ments. ZENNER will always ensure correct disposal.
Attention
Do not dispose of the devices with domestic waste.
In this way, you will help to protect natural resources
and to promote the sustainable reuse of material
resources.
For any question, please contact [email protected]
The declaration of conformity and the newest infor-
mation on this product can be called up from www.
zenner.com.
