Setting Parameters
page 111
NF 650 - rev. 01 / 29.06.2020
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 shut down
until the moment of the following totalising event (> 24 hours) no total will be created for
this period (see Fig. 33-5). Data will not be saved and the period remains to be unspecified.
This “gap” can be identified from the completely missing entry (date/values) within the listed
sequence. No empty lines will be created.
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
4
Total Day 4: Total covering 24 hours
5
Power failure
6
Power available again
Fig. 33-5
Totalising scheme
• The totalising period is set to the period between 00:00 o’clock and 24:00 o’clock as
per default
. This means that the day totals are always created between 00:00 o’clock
and 24:00 o’clock.
• The totals are created at 00:00 o’clock as
per default
.
Â
Ü
The time of totalising can be modified as follows:
1. Turn the rotary pushbutton until >Update (Time)< is highlighted blue.
2. Press the rotary pushbutton to activate the hours section.
3. Specify the desired time to start totalising (e.g. 08:00) and press the rotary push-
button to confirm and simultaneously activate the minutes range.
4. Specify the desired minutes.
5. Confirm your specifications by pressing the right function key >Enter<.
The time of totalising has now been changed to 08:00 o’clock.
Due to these settings the 24-h-total will be automatically created covering the
period between 08:00 o’clock and 08:00 o’clock of the following day.
The >Current< field indicates the subtotal accrued since the latest totalising event.
