ABB LWT300 series, Руководство пользователя

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User Guide
Setting bypass/sw pipe diameter
If installing your LWT on a bypass or stilling well (SW), you need to set the diameter of said bypass/
stilling well.
To do so:
1
Select
Device Setup
>
Application Setup
>
Bypass/SW pipe Diam.
.
2 Press Edit .
3 Set the diameter of the bypass/stilling well and press OK .
Changing end of probe mode
The end of probe mode depends on your type of probe. By default, if you have a coaxial probe, your LWT
is factory-set as
Grounded .
To change the factory-set end-of-probe mode:
1 Select Device Setup > Application Setup > End of Probe Mode .
2 Press Edit .
3
Highlight the other end-of-probe mode and press
OK
.
NOTICE
Isolated end of probes are only compatible with rod probes.
Toggling remote transmitter state
If your instrument came with a remote transmitter unit, the head unit is configured to recognize that remote
transmitter. However, should you remove the transmitter, or should you choose to add a transmitter at a
later date, you need to toggle the remote transmitter state to represent the new configuration.
To do so:
1
Select
Device Setup
>
Application Setup
>
Remote Transmitter
.
2
Press
Edit
.
3 Highlight On or Off and press OK .
Setting process conditions
You can also set the various conditions occurring inside the tank if you want them to be taken into
consideration when the instrument is taking measurements. For this to happen, you need to enable any
of the following conditions, when relevant:
•
Buildup Detection
(residue that might be accumulated on the probe.)
•
Foam
(foam that forms on top of the measured substance.)
• Flashing (drastic changes in level inside the vessel.)
• Emulsion (if two elements with vastly differing DCs are mixed temporarily, e.g., water and oil.)
•
Agitated
(if levels might be affected by moving objects inside the vessel, e.g. mixing blades.)
•
High Vibration
(allows measurements in situations where high levels of vibration on-site might
bring the accuracy level above the 2% range defined by the SIL [Safety Integrity Level] requirements.)