Siemens SITRANS LUT400 Operating Instructions Manual page 155

2.5.7. Manual Value
The mA value to use when Current Output Function (2.5.1.) is set to Manual.
Allows you to use a simulated value to test the functioning of the loop. You can
enter 4 mA, 20 mA, or any other user-defined value within the range.
Values
a) First set Current Output Function (2.5.1.) to Manual.
b) Set this parameter to the desired mA value.
c) After completing the test, remember to reset Current Output Function
(2.5. 1 .) to the previous setting.
Via AMS Device Manager or FC375/475:
Open the menu Configure/Setup > Operation > Select Analog Output.
Via SIMATIC PDM:
Open the menu Device – Loop Test.
2.5.8. Current Output Value
Read only. Displays the current mA value, including a simulated value entered
to test the functioning of the loop.
Values
2.6. Volume
Carries out a volume conversion from a level value.
Note: Default settings in the parameter tables are indicated with an asterisk (*)
unless explicitly stated.
2.6.1. Vessel Shape
89Defines the vessel shape and allows the LUT400 to calculate volume
instead of level. If None is selected, no volume conversion is performed.
Select the vessel shape matching the monitored vessel or reservoir.
*
A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
Range: 3.5 to 22.8 mA
Default: 3.58
Range: 3.5 to 22.8 mA
Vessel Shape
None
LCD DISPLAY/
Description
NONE/
No volume calculation
required
LINEAR/
Upright, linear (flat bottom)
CYLINDER/
Flat end horizontal cylinder
Also
required
N/A
maximum
volume
maximum
volume
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