MULTICAL® 803
Kamstrup A/S · Technical description · 5512-2360_A1_GB_02.2019
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Below you see examples of the date and data display readings. The frames around the date indicate whether the
date is connected to yearly or monthly data. In data readings of yearly data, the last two digits of the year are
marked in frames, whereas the two digits for month are marked for monthly data. Furthermore, the symbols ”MIN”
and ”MAX” are shown to indicate whether the values are minimum or maximum values. The symbol “LOG” is shown
for historical readings.
Examples of yearly date and data (max values) for flow
Date of max this year
Data of max this year
Date of max yearly logger
Data of max yearly logger
Examples of monthly date and data (min. values) for power
Date of min. this month
Data of min. this month
Date of min. monthly logger
Data of min. monthly logger
All minimum and maximum values are calculated as the average of a number of current measurements depending
on the selected length of the averaging period. All calculated values from the averaging period are used in the
calculation of the average. The calculated average value is compared to previous average values, and the new
average value is saved as maximum or minimum if it exceeds the previous maximum value or is lower than the
previous minimum value. The averaging period used for flow and power can be selected in the range 1…1440
minutes in intervals of 1 minute (1440 minutes = 24 hours). By default, this averaging period is 60 minutes. This value
can later be changed via the SETUP loop or via METERTOOL HCW. The averaging period used for temperature is
determined by the country code. By default, this averaging period is 5 minutes. Read more about order data in
paragraph 3.4.
Note the following:
•
In the display of logged flow and power, average is shown in the format 20YY.MM.DD, but by serial reading,
the time can be stated too, and the format then becomes YY.MM.DD, hh.mm.ss.
•
The average is calculated continuously over time, i.e. the average of values is calculated as from now and the
length of the averaging period back in time. This means that the min./max calculation is immune to the clock
setting and will always move continuously through the time.