Device functions Proline Promag 55 FOUNDATION Fieldbus
3 Transducer Block
Hauser
75
3.1
Signal processing
The following figure shows the internal structure of the individual Transducer Blocks:
A0006545-EN
Fig. 2:
Internal structure of the individual Transducer Blocks
The "Flow" Transducer Block receives a signal variable (Volume) from the sensor as the input signal.
The amplifier converts this input signal to volume flow. The amplifier calculates the current mass
flow via the "Density Param. - Fixed Value" parameter (
Page 87) by deriving the value from
the measured volume flow.
Optionally, the empty pipe detection function can be adjusted and switched on or off by means of
the EPD parameter group.
Transducer Block “Display”
Transducer Block “Flow”
Transducer Block “Totalizer”
AI Block
Transducer Block “Diagnosis”
EPD - Adjustment
EPD - Param. Mode
EPD - Param. Time
Densit
y
Param. - Fixed Value
S
y
stem Param. - Install. Direct.Sensor
Volume
Flow
Totalizer 2
S
Totalizer 3
S
Totalizer 1
S
Volume Flow
O/S
Signals
Calc.
Mass Flow
CH 2
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
Off Value
On Value
Simulation -
Measurand
S
y
stem Param. -
Positive Zero Return
Low Flow
Cut Off-Assign
Simulation - Value Measurand
Amplifier
EPD