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FLOWSIC600-XT · Operating Instructions · 8018846/1BHP/V2-1/2021-05 · © SICK Engineering GmbH
Product description
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2.8.1
Fingerprint System
The FLOWSIC600-XT is equipped with a so-called Fingerprint System, which records
process and diagnostic data to examine the current operating state for changes to an
operating state in the past. A warning can be generated when changes are detected. In
addition, it is possible to obtain complete images of device statuses at different points in
time.
The “Fingerprint System” enables an application-specific tightening of monitoring limits
and is therefore very well suited for detecting small or creeping changes in process
variables. Especially changes of device parameters due to ageing of sensors/electronics
and contamination of sensors or flow influencing components (e.g. flow conditioners) can
be detected. The “Fingerprint System” is primarily designed to detect long-term relevant
deviations.
The “Fingerprint System” has 11 non-volatile stored measured data entries (zero point, five
speed classes in forward direction and five speed classes in reverse direction) for each of
the three different states:
● Calibration (low pressure or high pressure calibration)
– For calibration, the Calibration wizard provided in the FLOWgate operating software
must be used.
– Data are recorded by FLOWgate during the calibration, written to the device and
read-out as required. At the end of each calibration, FLOWgate prompts whether the
data should be saved (and if already existing, overwritten).
– With the data, the time, measurement conditions and performance during
calibration can be traced very well.
– Has informative character.
● Reference data for field commissioning
– The reference is initially generated automatically by the device in a teach-in process
(after commissioning).
– The reference can be overwritten by a reference generated by FLOWgate, e.g. from
the diagnostic archive.
– The reference serves as normal for the current condition assessment.
● Current data
– A user warning is generated when one or more diagnostic variables deviate from the
reference data by more than an adjustable limit. All monitoring can be activated indi
-
vidually.
– Represent a complete current process image.
The data records of the different operating states are divided into different “classes” by the
flow velocity. Comparisons between reference data and current data are only made in data
records of the same class.
