Siemens SITRANS LT500 - Page 77

Commissioning
6.5 Local commissioning
SITRANS LT500 with ultrasonic transducer inputs
Compact Operating Instructions, 02/2024, A5E52021877-AA
77
Fixed temperature
Sets a fixed temperature value if a temperature sensing device is not used.
Setting
-100.0 ... +150.0 °C
Default
+20.0 °C
This parameter is only visible when parameter "Temperature source" is set to "Fixed
temperature".
Enter the temperature (in °C) of the atmosphere within the transducer acoustic beam. If the
temperature varies with distance from the transducer, enter the average temperature.
Step: Calibration
Current at lower calibration point
Sets loop current produced by the mA input when material is at lower calibration point.
Setting
4 ... 20 mA
Default
4 mA
This parameter is only visible when the sensor type is set to "4 … 20 mA".
Current at upper calibration point
Sets loop current produced by the mA input when material is at upper calibration point.
Setting
4 ... 20 mA
Default
20 mA
This parameter is only visible when the sensor type is set to "4 … 20 mA".
Lower calibration point
Sets distance from sensor reference point to lower calibration point: usually process empty
level.
Setting
Sensor specific
Default
6 m
Upper calibration point
Sets distance from sensor reference point to upper calibration point: usually process full level.
Setting
Sensor specific
Default
0 m