Configuration Flag Reset (Hart Only); Auto False Echo Suppression; D/A (Digital/Analog) Trim (Hart Only); Simulate Ao (Analog Output) (Hart Only) - Siemens SITRANS LR460 HART Operating Instructions Manual

Warm Start
This has the same effect as cycling power. It does not reset any parameters.
• Open the menu Device – Reset, select Warm Start and click OK.

Configuration Flag Reset (HART only)

To reset the configuration flag to zero, open the menu Device – Configuration Flag Reset
and execute a reset.

Auto False Echo Suppression

Use this parameter to learn a new TVT curve, to avoid false echoes caused by
obstructions. See
explanation and

D/A (Digital/Analog) Trim (HART only)

Allows you to trim the 4 mA and 20 mA points in order to calibrate the mA output.
Open the menu Device – D/A Trim. You will be prompted to attach a calibrated meter and
enter the values at 4 mA and at 20 mA.

Simulate AO (Analog Output) (HART only)

Allows you to input a simulated value in order to test the functioning of the mA
connections during commissioning or maintenance of the device.
To simulate a user-defined mA value:
1. Open the menu Device – Simulate AO.
2. Select Other, enter the new value, and click OK. The message 'Field Device fixed
at new value' appears. Click OK.
3. When you are ready to end simulation, select End and click OK to return the
device to the original output level.

Simulation

The Simulation parameter influences output to the control system.
Note:
Simulate Analog Input to AIFB1 or AIFB2
Simulation (Measured Value)
Allows you to input a simulated value in order to test the functioning of the Analog
Input Function Blocks.
Page 42
Auto False-Echo Suppression
TVT (Auto False Echo Suppression) Setup
SITRANS LR460 – INSTRUCTION MANUAL
on page 93 for a more detailed
on page 63 for instructions.
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