Instruction Manual
DM08
Density:
If a mass unit in kg or t is used as flow unit, the
density of the medium must be entered in [g/l].
The mass flow will be calculated from the
volume flow measurement using the density.
After choosing the function
Density
and press-
ing Enter, the current density value will be dis-
played:
Density
0998.2 g/l
Example:
The density can be entered precise to
0.1 g/l.
Notice
The density is not measured. It is a
parameter.
Volume flow LSL (read only):
This value represents the minimum lower range
value based on the inside diameter of the
sensor. This value is normally set for a flow ve-
locity of 0.25 m/s.
QV LSL
+0075.000 m3/h
Example:
Volume flow USL (information field):
This value represents the maximum upper
range value based on the inside diameter of the
sensor. This value is normally set for a flow ve-
locity of 11 m/s.
QV USL
+003580.0 m3/h
Example:
8.1.6 Pulse output
The PULSE OUTPUT functional class includes
the functions regarding the pulse output.
The function
Pulse or frequency output
is
used to define the mode for the digital output –
either pulses per flow unit or a frequency 0 to 1
kHz corresponding to the measuring range.
8.1.6.1 Frequency output
When selecting "frequency", the maximum fre-
quency of 1 kHz will be output when the upper-
range value for mass or volume flow QV URV is
reached (depending on the selected pulse unit).
If the flow rate falls below the volume flow limit
MIN, the frequency is set to 0 Hz.
8.1.6.2 Pulse output
When selecting "pulses", pulses per flow unit
will be output by the transmitter. The pulse
shape is defined by the parameters pulse out-
put unit, pulse value and pulse width.
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PKP Prozessmesstechnik • 09/2019
