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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6.2.2 Application examples
Note
In the applications illustrated below, values are for example purposes only.
You can use these examples as setup references. Enter the values in the parameter tables
to select the corresponding functions.
Configure the basic settings using the Quick Start wizard parameters. (These parameters
are inter-related, and changes take effect only after you select YES to apply changes in the
last step.)
In each example, after performing a Quick Start, navigate to the other required parameters
either via the handheld programmer, or using a Device Management tool (SIMATIC PDM or
AMS Device Manager) and enter the appropriate values.
6.2.2.1 Level application example
The application is a vessel that takes an average 3 hours (180 minutes) to fill and 3 weeks to
empty.
Fill rate = 0.08 m/minute [(Low Cal Pt. minus High Cal Pt.) / fastest of fill or empty time]
= (15.5 m – 1 m) / 180 min.
= 14.5 m /180 min. = 0.08 m/min.
Therefore SLOW response rate (0.1 m/minute) can be selected.
①
Space
②
Distance
③
High Calibration Point (process full level)
④
Sensor reference point
⑤
Low Calibration Point (process empty level)
⑥
Level