Performing Simulations And Tests; Performing Standard Simulations; Performing Current Simulations - ABB LWT300 series User Manual

Performing simulations and tests

The simulation tools, found in the Simulation menu under the Diagnostics menu, help confirm proper
communication of measured values. There are three standard simulations all performed in a similar way
(distance, level, ullage). There are also current simulations. All are explained below.
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Figure 46 The Diagnostics menu

Performing standard simulations

Standard simulations are performed by setting a value that you want to communicate and enabling the
simulation afterwards. The procedure below explains the procedure for level simulations, but a similar
method can be used for distance and ullage simulations.
To perform a level simulation
1 Select Diagnostics > Simulation > Level Sim > Level Sim.
2 Press Edit.
3 Set the level value that you want to simulate and press OK.
4 Press Back.
5 Select Enable and press Edit.
6 Press OK.
The instrument sends level data signals on the network and the value set should appear as a reading
on a DTM interface or HART terminal.

Performing current simulations

To perform a current simulation
1 Select Diagnostics > Simulation > Current Simulation.
2 Press Edit.
3 Set the current that you want to simulate and press OK.
The instrument sends the set current on the network and the value set should appear as a reading
on a DTM interface or HART terminal.
Maintenance and troubleshooting
73