Instruction manual
NivuFlow 550
page 82
rev. 00 / 12.04.2017
24.2 Day Totals
This is where the flow totals can be viewed in a table. Each value represents a period of
24 hours.
Fig. 24-3
Day Totals
A maximum of 100 totals (= 100 days) is stored. Starting with value 101 always the oldest
value will be overwritten (ring memory).
Â
Ü
Turn the rotary-pushbutton to the right to scroll down the table and to the left to scroll up
again.
It is possible to view older day totals as well. A prerequisite to view older values is that the unit
has run for a longer period.
Example:
98 values – the unit is running for 98 days
In general, only totals created during days with the transmitter actually powered up can be
viewed.
If the transmitter should be shut down between two totalising events (< 24 hours) a total will be
calculated by using
measured values
. Such a total is
not equal
to the real daily flow rate but
corresponds to the rate measured by the transmitter while powered up.
Should the transmitter be shut down before the next totalising event and remains to be shut
down until the moment of the following totalising event (> 24 hours) no total will be created
for this period (see Fig. 24-4). No data will be saved and the period remains to be unnamed.
This "gap" can be identified from the completely missing file (date/values) within the list. The
transmitter does not create empty lines.
1
00:00
20:00 24:00
24:00 03:00
24:00
24:00
t
Q
1
2
3
4
5
6
Total day 1: total covering 20 hours
2
Day 2: power failure – no totalising
3
Total day 3: total covering 21 hours
