ABB LWT300 series Manual de usuario

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LWT300 series (Modbus)

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 instrument

installation, electrical connection, commissioning, operation and maintenance.

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

• LWT series instrument head1

• Instrument coupler

• Probe (not shown in Figure 1)

• Quick Start Guide (this document)

• USB key (with user guide, safety guide, datasheet, customer data package [optional])

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)

¹ The instrument head and coupler are delivered already assembled unless the remote head option was ordered.

LWT300 series (Modbus) 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.).

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.

The steps indicated above are explained in more details in the LWT series user’s guide.

Simple connection diagram

Here is a simple power connection diagram for LWT series instruments installed in a non-explosive

location.

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Figure 2 Modbus connection diagram

Modbus®

Master

Device

Power supply

10.5 to 28.5 V DC

LWT Modbus®

Instrument

A (+)

B (–)

PWR

–

A (+)

B (–)

–

GND

RS-485

Communication

Link

Initial software setup

Initial setup of the instrument is performed via the Easy Setup menu. Below you will find menu items,

factory-set values (in bold) 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

Application Category

(type of measurement performed)

Water-Based (DC>10) Water-Based (DC>10)

Liquid mix. (3<DC<10)

Oil Based (DC<3)

Solid (organic)

Solid(Others)

Interface

Set PV

(primary value measured)

Level Level

Distance

Ullage

Interface¹

Thickness¹

Interface Distance¹

PV Unit

(measurement unit for the primary

value)

m (meter) m (meter)

cm (centimeter)

mm (millimeter)

ft (feet)

in (inch)

↓ Empty/Zero

(distance between the process

connection and the starting point of

the measuring level range)

Factory-set based on full span of

probe length

Customizable

↑ Full/Span

(the distance between the minimum

level and the maximum level)

Factory-set based on full span of

probe length

Customizable

Max Level Rate

(rate at which the vessel should reach

its maximum level)

Medium: <25cm/min 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

External Temperature

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.

¹ When Interface application category is selected

P/ N 3KXL001288U0141 Rev A

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We reserve the right to make technical changes or modify the contents of this

document without prior notice. With regard to purchase orders, the agreed

particulars shall prevail. ABB does not accept any responsibility whatsoever

for potential errors or possible lack of information in this document.

We reserve all rights in this document and in the subject matter and

illustrations contained therein. Any reproduction, disclosure to third parties

or utilization of its contents– in whole or in part–is forbidden without prior

written consent from ABB.

ABB, Inc.

Measurement & Analytics

3400, rue Pierre-Ardouin

Québec (Québec) G1P 0B2

Canada

Phone:

North America: 1 800 858 3847

Worldwide: +1 418 877 8111

E-mail:

[email protected]

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