Endress+Hauser Proline Promass 83 - Signal Processing

3 Transducer Block Device Functions Proline Promass 83 FOUNDATION Fieldbus
110 Endress+Hauser
3.1 Signal processing
The following figure shows the internal structure of the individual Transducer Blocks:
A0004761-EN
Fig. 2 : Internal structure of the individual Transducer Blocks
The Transducer Block receives several signals from the sensor as input values (mass, density,
temperature). Other process variables (volume, standard volume) are derived from these signals.
The input signals further processed via an amplifier.
A low flow cut off allows you to hide measurement inaccuracies in the low-flow sector. The
parameter "Low Flow Cut Off - On-Value" ( → Page 118) allows you to define a limit value. If the
measured flow value is below this limit value then the output value of 0 is output.
Transducer Block “Advanced Diagnostics”
Transducer Block “Viscosity”
Transducer Block “Calculated Density”
Transducer Block “Display”
Transducer Block “Flow”
Transducer Block “Totalizer”
AI Block
Transducer Block “Diagnosis”
Volume
Flow
Temperature
Totalizer 2
S
Totalizer 3
S
Totalizer 1
S
Volume Flow
O/S
Signals
Mass Flow
CH 2
CH 6
CH 7
CH 8
CH 9
CH 1
Mass Flow
Mode_BLK
Mode_BLK
Tot. 2 - Assign
Tot. 3 - Assign
Tot. - Reset All
Tot. 1 - Assign
Totalizer ... - Mode
Totalizer ... - Reset
Auto
Auto
Auto
O/S
Simulation -
Measurand
Simulation -
Value Measurand
Amplifier
Esc
E
- +
On Value
Low Flow
Cut Off
Off Value
Low Flow Cut Off
Pressure Shock Suppression
Empty Pipe Detection
Positive Zero
Return