TECHNICAL DESCRIPTION flowIQ® 3100
24 Kastup A/S • Tehial Desiptio • 5512-1242_D_GB • 09.2016
Temperature measurement
.
9.5.2 Ambient/meter temperature
Monitoring ambient/meter temperature in the installation can be used for warnings of freezing or
unintended high temperatures. The measurements of the meter temperature are made inside the meter
housing, which corresponds to the ambient temperature in the environment where the meter is installed.
The temperature is measured every minute.
The maximum and minimum values are based on a two-minute averaging value. The average temperature
is a time-weighted mean value.
9.5.3 Water temperature
Monitoring the water
*)
temperature can help to indicate quality of the water when it reaches the consumer.
Every 32 seconds, an indirect measurement of water temperature is made, using the ultrasound signal. The
maximum and minimum values are calculated every 2 minutes, based on a volume weighted mean value,
since the last minimum/maximum temperature calculation.
*)
Water temperature applies only for meter sizes 1.6, 2.5 and 4.0 m
3
/h
Measurement of water temperature
*)
requires that the meter is filled with water. If there is no water in the
meter a code will be saved, saying that the meter is not water filled.
During periods of very low water consumption, the water temperature approaches the ambient tempera-
ture. During periods without water flow the weighted average cannot be calculated and then a code 128
is stored, indicating that there is no consumption.
*)
Measuring the water temperature is only valid for meter sizes 1.6, 2.5 and 4.0 m
3
/h
9.6 Optional register in data logger
Some of the data sent via the Wireless M-Bus radio is optional. It is possible to select one of the data packages
with content illustrated in the figure below.
The choices are determined by means of the selected R-value when ordering a water meter – shown to the
right in the figure next page.
(See description of Wireless M-Bus signal in section
Wireless M-Bus)
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