Instruction Manual
DM08
Totalizer reverse:
If you select the function
totalizer reverse
,
the current value of the totalizer reverse will be
displayed.
Totalizer rev.
000000.0 m3
Example:
The displayed unit is defined in the functional
class TOTALIZER using the function
total-
izer unit
.
Flow velocity:
If you select the function
flow velocity
the
LCD shows the current value of the average
flow velocity of the medium.
flow velocity
1.5 m/s
Example:
The displayed unit is always meters per second
(m/s).
The average velocity is calculated from the
measured volume flow and the cross section of
the meter tube. For the calculation of the cross
section, the inside diameter of the meter tube is
needed.
It will be defined by the function
inside dia-
meter
in the functional class SETTINGS
DM08“.
Relative flow rate:
The relative flow rate Q
rel
is the percentage ratio
of the (current) volume flow Q
abs
and the upper
range value of the volume flow.
The calculation of the relative flow rate is based
on the following formula:
%
100
limit
range
lower
limit
range
upper
limit
range
lower
abs
Q
rel
Q
If you select the function
relative flow
, the
following will be displayed.
Relative flow
95.3 %
Example:
QV + forward totalizer 1:
If the function
QV totalizer 1
is selected, in
the first line the value of the forward totalizer 1
and in the second line the current value of the
volume flow will be displayed.
XXX.X m3
T1 XXX.XX m3/h
Example:
The displayed unit for the volume flow is
defined in the functional class FLOW using the
function
volume flow unit
.
The unit of the totalizer is defined in the func-
tional class TOTALIZER using the function
to-
talizer unit
.
QV + forward totalizer 2:
This function is basically similar to the function
QV°totalizer 1
.
The only difference is, that in the first line the
value of the forward totalizer 2 is displayed.
XXX.X m3
T2 XXX.XX m3/h
Example:
- 28 -
PKP Prozessmesstechnik • 09/2019
