Deep Well Monitoring; Volume Measurement In A Storage Tank - Endress+Hauser Ria 250 Bedienungsanleitung

Process display

6.2 Deep well monitoring

The water depth relative to the distance of the water surface to
the well entry at ground level in a deep well is to measured and
displayed. Additionally the filling sequence is to be displayed on
the bargraph between 0% and 100% and retransmitted to a
data recorder as a 0 - 10 V signal. If the system becomes faulty
then the analogue output is to transmit the 0% value.
Example:
Setting up:
Menu group
INPUT
Analogue input
DISPL
Display
OUTPT
Analogue output

6.3 Volume measurement in a storage tank

The amount of grain filled into a silo is to be recorded,
displayed and retransmitted to a PLC. A 4-20 mA level sensor
powered by the loop power from the unit measures the filled
height in the silo. The relationship between filling height (m)
and volume (m³) is known and the the sensor current is
proportional to the height. The calculated volume is retrans-
mitted at trhe analogue output as a proportional 0-20 mA
66
Well full:
- Sensor signal 20 mA
- Numeric display is to
display 3 m
- Bargraph is to display 100%
- 10 V is to be set at the
analogue output.
Well empty:
- Sensor signal 4 mA
- Numeric display is to
display 14 m
- Bargraph is to display 0%
- 0 V is to be set at the
analogue output.
Address
RANG
Input range
CURVE
Curve
DI DP
Decimal point
DI LO
Display value 0%
DI HI
Display value 100%
Scale bargraph/analog 0%
Scale bargraph/analog 100%
RANG
Output range
FAIL
Fault operation
Value
4-20
LINAR
99999
14
3
14
BG LO
3
BG HI
0-10V
MIN