Vega VEGAPULS 67 Operating Instructions Manual page 46

6 Set up with the display and adjustment module
Diagnosis - Simulation
Diagnoses - Curve indica-
tion
46
In this menu item you can simulate measured values via the current
output. This allows the signal path to be tested, e.g. through down-
stream indicating instruments or the input card of the control system.
How to start the simulation:
1. Push [OK]
2. Select the requested simulation variable with [->] and confirm
with [OK].
3. With [OK] you start the simulation, first of all the actual measured
value is displayed in %
4. Start the editing mode with [OK]
5. Set the requested numerical value with [+] and [->].
6. Push [OK]
Note:
During simulation, the simulated value is outputted as 4 ... 20 mA cur-
rent value and digital HART signal.
How to interrupt the simulation:
→
Push [ESC]
Information:
The simulation is automatically terminated 10 minutes after the last
pressing of a key.
The "Echo curve" shows the signal strength of the echoes over the
measuring range in dB. The signal strength enables an evaluation of
the quality of the measurement.
The "False signal suppression" displays the saved false echoes (see
menu "Additional settings") of the empty vessel with signal strength in
"dB" over the measuring range.
A comparison of echo curve and false signal suppression allows a
more detailed statement of the reliability.
VEGAPULS 67 • 4 ... 20 mA/HART - four-wire