TECHNICAL DESCRIPTION MULTICAL® 21 & flowIQ® 2101 /..02 /..03
38
Kamstrup A/S •Technical Description • 5512-897_J1_GB • 06.2016
10.5.2
Ambient/ meter temperature
Monitoring the ambient/meter temperature in the installation can be used for warnings of freezing or
unintended high temperatures. The measurements of the meter temperatures, are measured inside the
meter housing, which corresponds to the ambient temperature in the environment where the water 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.
10.5.3
Water temperature
Monitoring the water temperature can be an indication of quality of the water, when it reaches the
consumer. Every 32 seconds, an indirect measurement of the 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.
Measurement of water temperature requires that the meter is filled with water. If there is no water in the
meter, it saves a code, saying that the meter is not water filled.
During periods of very low water consumption, the water temperature approaches the ambient
temperature. During periods without water flow the weighted average cannot be calculated, and then a
code 128 is stored, indicating that there is no consumption.