Current Output (2.5.); Current Output Function (2.5.1.); Current Output Function (2.5.2.) - Siemens SITRANS LUT400 Operating Instructions Manual

9.2.5

Current Output (2.5.)

Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
9.2.5.1

Current Output Function (2.5.1.)

Menu number
OR
9.2.5.2

Current Output Function (2.5.2.)

Menu number
Alters the mA output/measurement relationship.
Note
• The various options have different reference points.
• Use caution when changing Current Output Function while the device is connected to a
HART network. Current Output Function controls the primary value and the loop current
for the device.
Options
*
When Current Output Function is set to Manual, a power cycle will reset this parameter to
1)
its previous value.
Option available only on LUT430, LUT440.
2)
176
2.5.1.
visible on LUT420 (Level model).
2.5.2.
visible on LUT430 (Pump and Flow model), and LUT440 (OCM model).
Reference point
MANUAL n/a
1
LEVEL Low calibration
point
SPACE High calibration
point
DISTANCE Sensor reference
point
VOLUME Low calibration
point
HEAD Zero Head
2
FLOW Zero Head
Description
user can enter mA value for loop current.
measured as difference between the material level and
Low Calibration Point (2.2.1.) (Page 171) , defined in Units
(2.1.1.) (Page 168).
measured as difference between the material level and
High Calibration Point (2.2.2.) (Page 172), defined in Units
(2.1.1.) (Page 168).
measured as difference between the material level and
sensor reference point, defined in Units (2.1.1.)
(Page 168).
converted from Level, defined in Length of the cylindrical
section of a horizontal parabolic end vessel. See Vessel
Shape (2.6.1.) (Page 180) for an illustration.
measured as difference between the liquid level and Zero
Head, defined in Units (2.1.1.) (Page 168).
converted from Head, defined in Flowrate Units (2.15.3.7.)
(Page 233).
Operating Instructions, 07/2019, A5E33329501-AC
SITRANS LUT400