Endress+Hauser Deltabar S PMD75 - Pressure Transducer Block Parameters

Cerabar S/Deltabar S/Deltapilot S FOUNDATION Fieldbus Parameter description (FF configuration program)
Endress+Hauser 53
7.3.2 Pressure Transducer Block
Pressure Transducer Block
Parameter Description
Primary Value Type/
PRIMARY_VALUE_TYPE
Selection
Index: 13
Data type: unsigned16
Access: OOS
Select the measuring mode and the measured variable by means of this parameter and the
Linearization/LINEARIZATION parameter (→ ä 57).
→ See also Operating Instructions for Deltabar S (BA00301P) and Cerabar S (BA00302P) or
BA00372P (Deltapilot S), "Selecting the language and measuring mode" section.
Options:
• Differential pressure with Deltabar S
• Deltapilot S with gauge pressure sensors
• Gauge pressure with Cerabar S with gauge pressure sensors
• Absolute pressure with Cerabar S with absolute pressure sensors
• Level
•Volume
•Mass
• Flow (only Deltabar S)
• Tank content (PV) in %
!
Note!
Make sure that the unit selected by means of the Scale Out/SCALE_OUT parameter, "Units
Index" element suits the measured variable.
Primary Value/
PRIMARY_VALUE
Display
Index: 14
Data type: DS-65
Access: read only
The Primary Value/PRIMARY_VALUE parameter is a structured parameter consisting of two
elements.
VALUE
• Displays the primary value - a pressure, level or flow value depending on the measuring
mode.
STATUS
• Displays the status of the primary value.
!
Note!
You can transmit the value and status of the Primary Value/PRIMARY_VALUE parameter via
the Channel/CHANNEL parameter (→ ä 96) in the Analog Input Block. The Channel/
CHANNEL must be set to "1" for this purpose.
Primary Value Range/
PRIMARY_VALUE_
RANGE
Display
Index: 15
Data type: DS-68
Access: read only
The Primary Value Range/PRIMARY_VALUE_RANGE parameter is a structured parameter
consisting of four elements.
EU_100
• Displays the upper limit for the primary value.
EU_0
• Displays the lower limit for the primary value.
UNITS_INDEX
• Displays the unit.
DECIMAL
• Displays the number of decimal places.
!
Note!
The Primary Value Range/PRIMARY_VALUE_RANGE parameter corresponds to the Scale
Out/SCALE_OUT parameter
(→ ä 58).
Calibration Highest
Point/CAL_POINT_HI
Entry
Index: 16
Data type: float
Access: OOS
Enter the upper point of the sensor characteristic curve in the event of sensor recalibration.
By means of this parameter, you can assign a new target pressure value to a reference
pressure present at the device. The pressure value present and the target pressure value
specified for this parameter correspond to the upper point in the sensor characteristic curve.
Position adjustment has to be performed again for the device following sensor recalibration.
!
Note!
• The sensor recalibration can be reset via the Enter Reset Code /ENTER_RESET_CODE
parameter (→ ä 93) with the "2509" code.
•The Hi Trim Measured/HIGH_TRIM_MEASURED parameter
(→ ä 60) displays the pressure value that was present at the device during calibration and
was used for calibrating the upper point of the sensor characteristic curve.
• For calibrating the lower point of the sensor characteristic curve, see the parameter
description for Calibration Lowest Point/CAL_POINT_LO.
Factory setting: High sensor limit (→ Sensor Range/SENSOR_RANGE, EU_100 element)