Siemens SITRANS LT500 - Page 80

Commissioning
6.5 Local commissioning
SITRANS LT500 with ultrasonic transducer inputs
80 Compact Operating Instructions, 02/2024, A5E52021877-AA
Step: Flow settings (vary by PMD)
Note
Two parts to "Step: Flow settings" (vary by PMD)
Part 1
- The dimensions (one to four), based on the selected PMD, are set.
Part 2
- Other required flow settings, based on the selected PMD, are set.
Only the settings required for the selected PMD are visible in the wizard on the HMI. Refer to
Operating instructions for a full list of settings per PMD.
Step: Flow settings (common)
Maximum head (2.5.6.4.)
Sets the maximum head value associated with the PMD and works in conjunction with
parameter "Maximum flow" for ratiometric calculations.
Setting
0 ... 9999999 m
Default
6 m
Zero head offset (2.5.6.7.)
Sets the difference (positive) between the lower calibration point and zero head (level at zero
flow).
Setting
0 ... 9999999 m
Default
0 m
The value for this parameter is set automatically based on the configuration applied in the
quick commissioning wizard.
Maximum flow (2.5.6.6.)
Sets the maximum flowrate associated with value in parameter "Maximum head".
Setting
0 ... 9999999 l/s
Default
100 l/s
Low flow cutoff (2.5.6.9.)
Sets the flow limit for low flow cut-off. Flow values below this limit are forced to zero.
Setting
0 ... 9999999 l/s
Default
0 l/s