24
Prosonic T - FMU 130, 131, 230, 231, 232
Hauser
Set Current Output
Notes on Current Output:
• The current output must be set in % or in the units of linearization.
•
Measuring Range Spread
: The beginning and end of the current range can be set
as required with partial ranges of the total span also being assigned.
• The
current output
can also be
inverted
so that the value in V0H5 is greater than that
in V0H6. An increased measured value will decrease the signal current.
•
Output Damping
: The effect of the output damping is to attenuate the analog output
and the measuring indication on the display of the Prosonic T. When the liquid surface
is not steady, a steady reading can be obtained with the aid of the output damping.
0 s = without damping
1 to 255 s = with damping
• Current on Fault (V0H7)
•
4 mA Threshold
:
The 4 mA threshold ensures that no value falls below this during measurement.
Errors and Warnings in V9H0
•
E620
: The current output is outside the set range (smaller than 3.8 mA, greater 20.5
mA). Check the calibration and settings of the current output.
Two Types of Measurement
➀
Continuous Current Output
The current from 4 to 20 mA is assigned
to a measuring range.
➁
Switch Current Output
The current values 4 and 20 mA or 8 and
16 mA are set as switchpoints.
4-wire
2-wire
4 to 20 mA, 4/20 mA, 8/16 mA
-10%
2.4 mA
3.8 mA
+110%
22 mA
22 mA
Height
4 mA 20 mA
V0H6 90%
V0H5 10%
# VH Entry
Text
1
V8H1
e.g. 0
H
Current output
0: linear 4 to 20 mA
1: linear 4 to 20 mA
with 4 mA threshold
2
V0H5
e.g. 10%
H
Level for 4 mA
3
V0H6
e.g. 90%
H
Level for 20 mA
4
V0H4
e.g. 20 s
H
Output damping
5
V0H7
e.g. 1
H
Output on fault
0: -10%
1: +110%
2: HOLD (holds last
measured value)
#
VH
Entry
Text
1
V8H1
e.g. 2
H
Current output
2: digital 4/20 mA
3: digital 8/16 mA
2
V0H5
e.g. 10%
H
Switchpoint min.
4 or 8 mA
3
V0H6
e.g. 90%
H
Switchpoint max.
20 or 16 mA
4
V0H4
e.g. 10 s
H
Output damping
5
V0H7
e.g. 1
H
Output on fault
0: -10%
1: +110%
2: HOLD (holds last measured
value)
Height
V0H6 90%
V0H5 10%
4 mA
20 mA
8 mA
16 mA
