Endress+Hauser cerabar S - Page 33

Cerabar S/Deltabar S Description of parameters (FF configuration program)
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6.3.2 Pressure Transducer Block
Pressure Transducer Block
Parameter Description
PRIMARY_VALUE_TYPE
Selection
Index: 13
Data type: Unsigned16
Access: OOS
Use this parameter and the LINEARIZATION parameter (→ Page 36) to select the measuring
mode and the measured variable.
→ See also Operating Instructions Deltabar S (BA301P) and Cerabar S (BA302P), select
Section 6.3 "Language and measuring mode".
Selection
• Differential pressure with Deltabar S
• Gauge pressure with Cerabar S with absolute pressure sensors.
• Absolute pressure with Cerabar S with overpressure 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 parameter, "Units Index"
element, matches the measured variable.
PRIMARY_VALUE
Display
Index: 14
Data type: DS-65
Access: Read only
The PRIMARY_VALUE parameter is a structured parameter consisting of two elements.
VALUE
• Displays the primary value, which, depending on the measuring mode, is a pressure, level
or flow value.
STATUS
• Displays the status of the primary value.
!
Note!
You can transfer the value and status of the PRIMARY_VALUE parameter via the CHANNEL
parameter (→ Page 67) in the Analog Input Block. For this purpose, the CHANNEL must be
set to "1".
PRIMARY_VALUE_
RANGE
Display
Index: 15
Data type: DS-68
Access: Read only
The 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 places after the decimal point.
!
Note!
The PRIMARY_VALUE_RANGE parameter corresponds to the SCALE_OUT parameter
(→ Page 37).
CAL_POINT_HI/
HIGH SENSOR TRIM
Entry
Index: 16
Data type: Float
Access: OOS
Enter the upper point of the response curve during sensor recalibration.
You can use this parameter to 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 response curve. Position adjustment must
be carried out on the device following sensor recalibration.
!
Note!
• Using the "High Sensor Trim" method in the Pressure Transducer Block, you can carry out
dialog-guided sensor recalibration of the upper point of the response curve.
• Sensor recalibration can be reset by means of the RESET_INPUT_VALUE/ENTER RESET
CODE parameter (→ Page 64) with the code "2509".
• The PRESSURE_1_UPPER_CAL_MEASURED/HI TRIM MEASURED parameter
(→ Page 39) displays the pressure value that was present at the device during the
calibration and was used for calibrating the upper point of the response curve.
• For calibrating the lower point of the response curve, see parameter description for
CAL_POINT_LO/LOW SENSOR TRIM.
Factory setting: upper measuring limit (→ SENSOR_RANGE, EU_100 element)