ABB LWT300 series Manuale utente
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LWT300 series
Quick Start Guide
Unpacking
If you are reading this document, you have already opened the box containing your instrument. While
following the basic safety instructions provided below, proceed with unpacking the content of this box.
Basic safety
Personnel
WARNING
Only properly certified and authorized personnel should be charged with the
installation, electrical connection, commissioning, operation and maintenance of the
instrument.
Depressurize the vessel before opening the instrument connection. Any process
media released may cause severe injuries.
Carefully plan any installation, modification or repair before actually proceeding.
Electrical
WARNING
Do not make electrical connections unless the electrical code designation stamped on
the instrument data plate matches the classification of the area in which you want to
install the instrument. Failure to comply with this warning can result in fire or explosion.
Use only tools compliant with national insulation standards, e.g., DIN EN 60900.
Use only non sparking tools when installing the instrument in hazardous areas.
Improper use
It is prohibited to use the instrument for any of the following, including but not limited to:
• A climbing aid, e.g., for mounting purposes.
• A support for external loads, e.g., as a support for pipes.
• By adding material, e.g., by painting over the name plate, or welding/soldering on parts.
• By removing material, e.g., by drilling the housing.
2Unpacking
What’s in the box
Check for damages to the included parts:
• LWT series instrument head
• Instrument coupler
• Probe
• User’s guide
Should any part of the package be damaged upon reception, contact ABB customer service as indicated
on the back cover of your user guide.
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Figure 1 LWT300 series typical installation
LWT300 head
LWT NPT coupler
Bolts (provided by client)
NPT flange (provided by client)
Gasket (provided by client)
Nuts (provided by client)
LWT300 series Quick Start Guide 3
Basic physical installation
Below is a list of basic steps necessary to properly install LWT series instruments, as recommended by
ABB. All installations should be performed by certified and authorized personnel in accordance with all
applicable local security codes (electrical, engineering, etc.) (the page references in parentheses refer to
the LWT series user’s guide)
Here are the basic installation steps:
1 Access and properly secure the installation site (vessel depressurization and cool down, mains power
down, etc.).
2 Attach the probe to the head/coupler assembly.
3 Slide the probe in the vessel and attach the probe/coupler assembly on the flange.
4 Connect the mains to the head unit.
5 Power up and configure the instrument.
Simple connection diagram
Here is a simple power connection diagram for LWT series instruments.
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Figure 2 Typical LWT connection
Initial software setup
Initial setup of the instrument is performed via the Easy Setup menu. Below you will find menu items,
factory-set values and lists of all available values when you click Select from the Easy Setup screen.
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Figure 3 Easy Setup menu
4Initial software setup
Submenu Default value Available values
Language
(language used on the interface)
English English
French (Français)
German (Deutsch)
Simplified Chinese
Set PV (4-20mA)
(primary value measured on the
4-20 mA current loop)
Level Level
Distance
Ullage
PV Unit
(measurement unit for the primary
value)
m (meter) m (meter)
cm (centimeter)
mm (millimeter)
ft (feet)
in (inches)
Empty/Zero
(distance between the process
connection and the starting point of
the measuring level range)
factory-set based on instrument
ordered
Customizable
Full/Span
(the distance between the minimum
level and the maximum level)
factory-set based on instrument
ordered
Customizable
Application Category
(general type of process application)
Water-based (DC>10) Water-based (DC>10)
Liquid mix. (3<DC<10)
Oil-based (DC<3)
Solid (organic)
Solid (others)
Max Level Rate
(rate at which the vessel should reach
its maximum level)
No Filter No Filter
Very Slow: <1cm/min
Slow: <5cm/min
Medium: <25cm/min
Fast: 1m/min
Very Fast: <5m/min
Display Line1 View1
(first line of text on the first screen
displayed, under the measured value)
Level Level
Ullage
PV Percent
Current
Empty
Distance
Span
Probe Length
Media Level
All menus available in your LWT instrument are explained in more details in the accompanying user’s
guide.
P/N 3KXL001068U0100
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