Siemens SITRANS LR200 7ML5422, Руководство по эксплуатации

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SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE
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Operation Description
NO SERVICE Measurement and associated loop current are not updated, and the device defaults
to Fail-safe mode.
LEVEL Distance to material surface referenced from Low Calibration Point
SPACE Distance to material surface referenced from High Calibration Point
DISTANCE Distance to material surface referenced from Sensor reference point
1)
The point from which High and Low Calibration points are referenced: see Uni-construction
polypropylene rod antenna (Page 152) and Dimension drawing (Page 152).
Low Calibration Point
Distance from Sensor Reference to Low Calibration Point: usually process empty level. [See
Operation (1.5.) for an illustration.]
Values Range: 0.00 to 20.00 m
High Calibration Point
Distance from Sensor reference point to High Calibration Point: usually process full level.
[See Operation (1.5.) for an illustration.]
Values Range: 0.00 to 20.00 m
Apply? (Apply changes)
In order to save the Quick Start settings, it is necessary to select Yes to apply changes.
Options YES, NO, DONE (Display shows DONE when Quick Start is successfully com-
pleted.)
Press Mode to return to Measurement mode. SITRANS LR200 is now ready to operate.
6.2.1.3 Auto False Echo Suppression
If you have a vessel with known obstructions, we recommend using Auto False Echo
Suppression to prevent false echo detection. See TVT setup (2.8.7.) (Page 115) for
instructions.
This feature can also be used if SITRANS LR200 displays a false high level, or the reading is
fluctuating between the correct level and a false high level.