Parameter Types - KROHNE OPTISWIRL 4200 Supplementary Instructions Manual

OPTISWIRL 4200

3.5 Parameter types

In SIL mode the device parameters are distinguished in three parameter types. Two types affect
safety:
• Safety critical data: Safety critical data: These parameters have a fixed setting and cannot be changed but read
Safety critical data: Safety critical data:
only. They are marked with a padlock symbol.
Parameter
Current Out. Meas.
4mA Trimming
20mA Trimming
High Error Current
Low Error Current
Analog Lower Endpoint
Value (no menu entry
available)
Lower Ext. Range
Analog Upper Endpoint
Value (no menu entry
available)
Upper Ext. Range
Error Function
Current Loop Mode
k-Factor / Offset
k-Factor Linear. /
Function
Up. Pip. Dist. Cor. /
Function
Temp. Comp. / Function
Lin. Thermal Exp. 1/K
Min/Max Oper. Dens. /
Function
Sensor Overrange
Vortex Algorithm / Filter
Mode
Vortex Algorithm / Min.
Amplitude
Gain CA
VA Piezo Test Mode (no
menu entry available)
Distortion Reduction /
Function
07/2017 - 4005006101 - AD OPTISWIRL4200 SIL R01 en
Fixed setting
Volume Flow
0.004 [A]
0.020 [A]
0.0215 [A]
0.0035 [A]
0.004 [A]
0.004 [A]
0.02 [A]
0.02 [A]
ALARMSELECTION LOW
ON
0.0
OFF
OFF
ON
0.0000175 [per Kelvin]
OFF
0
FULL AUTO SETTINGS
0.01 [V]
0
PIEZO TESTMODE OFF
ON
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Description
Index of the device variable which is mapped to the current
output.
The externally measured analogue level during trimming
(user calibration) of the "Analog Lower Endpoint Value".
The externally measured analogue level during trimming
(user calibration) of the "Analog Upper Endpoint Value".
High failure current.
Low failure current.
Corresponds to 0% range and therefore to the "Lower Range
Value" of the range conversion.
The minimum value that the analogue channel is capable of or
is limited to.
Corresponds to 100% range and therefore to the "Upper
Range Value" of the range conversion.
The maximum value that the analogue channel is capable of
or is limited to.
States whether the alarm is indicated with high or low signal
level or not at all.
A switch for enabling/disabling loop current signalling.
®
ON: HART multidrop mode is disabled.
Offset value to adapt k-factor.
Switches the k-factor linearisation on/off.
Setup of k-factor upstream compensation.
Setup of k-factor temperature compensation.
Coefficient of linear thermal expansion (bluff body).
Switch for use of upper and lower densities for calculation of
sensor limits.
Is used to determine the high flow cutoff factor.
Filter configuration:
"FULL_AUTO_SETTINGS" means that all settings are derived
from Pickup configuration.
Indicator for valid measurement of vortex frequency.
Piezo configuration.
Piezo configuration.
Amplitude correction.
OPERATION
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