Siemens SITRANS F Additional Operating Instructions page 18

OPERATION
3
Parameter
Distortion Reduction /
K_P
Distortion Reduction / K_I
Distortion Reduction /
Smoothing Factor
Vortex Filter / Filter Type
Vortex Filter / Filter
Length
Vortex Filter / Smoothing
Factor
Vortex Algorithm / Min.
SNR
Time Constant
Low Flow Cutoff
Minimum hold time
transient error (no menu
entry available)
Vortex Algorithm
Extended Sensor Limits
• Safety relevant data: Safety relevant data: Safety relevant data: Safety relevant data: These parameters can be changed under responsibility of the operator.
Misconfiguration via erroneous setting is detected by the parameter verification procedure
which is executed automatically if the device is setup for SIL mode and parameters have been
changed (for details refer to
Access level
Expert
Expert
Service
Expert
Expert
Expert
Service
• Non-SIL data: Non-SIL data: These parameters do not have any influence on the safety function and may be
Non-SIL data: Non-SIL data:
changed as in non-SIL mode.
The parametrisation in SIL mode works as described in chapter "Operation" in [N1] for the most
parameters. However, there are some parameters which have an influence on functional safety
if set incorrectly.
For every safety affecting parameter, two values, potentially equal ones, exist in the device: one
is used for non-SIL, the other for SIL operation. Depending on the device's state, either the one
parameter set or the other is shown or can be edited. As soon as the SIL mode is requested, the
SIL mode parameters become active.
18
Fixed setting
204011
140737
2141041197
FILTER TYPE NONE
25
0.05
50.0
2.0 [s]
0.0 [cubic meters per
second]
5000 [ms]
OFF
Preparation for SIL mode operation
Parameter
"Lower Range Value" of
the current output
"Upper Range Value" of
the current output
k-Factor
Density (operating)
Temperature (operating)
Fluid
Nominal Diameter
www.siemens.com/flow
Description
Amplitude correction P-factor.
Amplitude correction I-factor
Amplitude correction filter factor.
Output filter type for vortex.
Output filter length.
Output filter smoothing factor.
Indicator for valid measurement of vortex frequency.
Time constant (for filter).
Low flow cutoff (When the flow rate drops below low flow
cutoff , the current output is 4 mA)
Minimum hold time of the failure current in case of transient
errors.
Extended sensor limits
Setting / Description
For further information refer to
on page 14.
Represents the relation between vortex frequency and flow
velocity.
Used to determine the flow sensor limits.
Used for correction of the k-factor.
Determines signal processing and on-screen menu of the
local display.
Used to determine the flow sensor limits.
SITRANS FX330
on page 13).
Verification of configuration
10/2017 - A5E40875009-AB EN