Xylem FLYGT LTU601 Manuale utente

Installation and Operation

Manual

WS007019A

LTU601

Table of Contents

1 Introduction and Safety..............................................................................................................2

1.1 Introduction.......................................................................................................................... 2

1.2 Safety terminology and symbols........................................................................................2

1.3 User safety.............................................................................................................................3

1.4 Disposal of packaging and product.................................................................................. 3

1.5 Spare parts............................................................................................................................3

1.6 Warranty................................................................................................................................4

1.7 Support..................................................................................................................................4

2 Product Description....................................................................................................................5

2.1 General description............................................................................................................. 5

2.2 Approvals and standards.................................................................................................... 5

2.3 Wiring and parts...................................................................................................................5

3 Mechanical Installation.............................................................................................................. 7

3.1 Mounting conﬁguration...................................................................................................... 7

3.2 Mount the unit...................................................................................................................... 7

3.3 Care and handling............................................................................................................... 7

4 Electrical Installation...................................................................................................................8

4.1 Connect the sensor..............................................................................................................8

4.2 Increase the cable length....................................................................................................8

5 Technical Reference................................................................................................................... 9

5.1 Technical data...................................................................................................................... 9

5.2 Sensor variants..................................................................................................................... 9

Table of Contents

LTU601 Installation and Operation Manual 1

1 Introduction and Safety

1.1 Introduction

Purpose of the manual

The purpose of this manual is to provide necessary information for installation, operation,

and maintenance of the unit.

Read and keep the manual

Save this manual for future reference, and keep it readily available at the location of the

unit.

CAUTION:

Read this manual carefully before installing and using the product. Improper use of the

product can cause personal injury and damage to property, and may void the warranty.

Intended use

WARNING:

Operating, installing, or maintaining the unit in any way that is not covered in this manual

could cause death, serious personal injury, or damage to the equipment and the

surroundings. This includes any modiﬁcation to the equipment or use of parts not

provided by Xylem. If there is a question regarding the intended use of the equipment,

please contact a Xylem representative before proceeding.

1.2 Safety terminology and symbols

About safety messages

It is extremely important that you read, understand, and follow the safety messages and

regulations carefully before handling the product. They are published to help prevent

these hazards:

• Personal accidents and health problems

• Damage to the product and its surroundings

• Product malfunction

Hazard levels

Hazard level Indication

DANGER:

A hazardous situation which, if not avoided, will result in

death or serious injury

WARNING:

A hazardous situation which, if not avoided, could result

in death or serious injury

CAUTION:

A hazardous situation which, if not avoided, could result

in minor or moderate injury

1 Introduction and Safety

2 LTU601 Installation and Operation Manual

Hazard level Indication

NOTICE:

Notices are used when there is a risk of equipment

damage or decreased performance, but not personal

injury.

Special symbols

Some hazard categories have speciﬁc symbols, as shown in the following table.

Electrical Hazard Permanent-magnet hazard

Electrical Hazard:

CAUTION:

1.3 User safety

Introduction

All government regulations, local health and safety directives must be observed.

Prevent danger due to electricity

All danger due to electricity must be avoided. Electrical connections must always be

carried out in compliance with the following:

• The standard connections shown in the product documentation that is delivered

together with the product

• All international, national, state, and local regulations. (For details, consult the

regulations of your local electricity supplier.)

For more information about requirements, see sections dealing speciﬁcally with electrical

connections.

Power lock-out

DANGER: Electrical Hazard

Before starting work on the unit, make sure that the unit and the control panel are isolated

from the power supply and cannot be energized. This applies to the control circuit as well.

Qualiﬁcation of personnel

WARNING: Electrical Hazard

Risk of electrical shock or burn. A certiﬁed electrician must supervise all electrical work.

Comply with all local codes and regulations.

All work on the product must be carried out by certiﬁed electricians or Xylem authorized

mechanics.

Xylem disclaims all responsibility for work done by untrained, unauthorized personnel.

1.4 Disposal of packaging and product

Observe the local regulations and codes in force regarding sorted waste disposal.

1.5 Spare parts

CAUTION:

Only use the manufacturer’s original spare parts to replace any worn or faulty

components. The use of unsuitable spare parts may cause malfunctions, damage, and

injuries as well as void the warranty.

1 Introduction and Safety

LTU601 Installation and Operation Manual 3

1.6 Warranty

For information about warranty, see the sales contract.

1.7 Support

Xylem only supports products that have been tested and approved. Xylem does not

support unapproved equipment.

1 Introduction and Safety

4 LTU601 Installation and Operation Manual

2 Product Description

2.1 General description

The package

The package includes:

• Level transmitter unit sensor

• Cable holder

About the level sensor

The level sensor is designed for submerged measuring of liquid levels in open channels,

drains, or tanks.

Operating in both clean, and heavily polluted, viscous ﬂuids, suitable applications include

pump stations, sewage plants, waterworks, and industrial process tanks.

Signal output is a standard 4–20 mA direct current, proportional to the measured level.

Features

• Durability and high resistance to grime, deposits, and chemicals due to seamless

encapsulated design, and choice of materials

• 2–wire 4–20 mA, passive signal cable with pressure equalizing tubing

• Steel reinforced cable provides tensile strength.

• Cable lengths for the standard measuring ranges: 12 m (39.37 ft) cable for 0–3 m (0–

98.4 ft), 0–5 m (0–16.4 ft), and 0–10 m (0–32.8 ft) ranges.

Available languages

For manuals in other languages, visit http://tpi.xyleminc.com.

2.2 Approvals and standards

CE conformity

Directive Description

The EMC directive In accordance with EN 61000-6-1:1999, EN 61000-6-2:1999,

EN 61000-6-3:2001, EN 61000-6-4:2001

Ingress protection rating IP 68

2.3 Wiring and parts

Wiring

Wire color Description

Red or white Power + 10–30 V DC

Brown Signal/4 - 20 mA

Black Signal ground/shield (P/E connection)

2 Product Description

LTU601 Installation and Operation Manual 5

Sensor body dimensions

WS007036A

mm (6.57 in)

mm (2.36 in)

Cable ﬁtting dimensions

WS007015A

60 mm

(2.36 in)

236 mm (9.29 in)

The image shows the dedicated cable ﬁtting for the free-hanging sensor unit.

2 Product Description

6 LTU601 Installation and Operation Manual

3 Mechanical Installation

Precautions

Before starting work, make sure that the safety instructions in the chapter Introduction and

Safety (page 2) have been read and understood.

3.1 Mounting conﬁguration

The level sensor is submersible.

• When it hangs free from the cable with dedicated suspension attachment, it is not

position-dependent.1

3.2 Mount the unit

1. Lower the sensor carefully into the liquid media so that it penetrates the surface

slowly.

Never drop the sensor into the liquid or allow it to fall freely.

2. Continue lowering the sensor until it reaches its working position, which is at the

bottom of its range (≥ 4 mA).

Do not exceed this depth.

3. Where applicable, secure the sensor to the cable holder.

3.3 Care and handling

The level sensor is of a robust construction through choice of materials and design,

making it tolerant of chemical and mechanical damage. However, precautions must be

taken to avoid corrosive media, over-pressure, and sharp impact.

Low pH

Acidic conditions in the media, for example pH<4, can reduce the life span of the sensor.

For more information, please contact your local sales and service representative.

Cleaning

If needed, carefully clean the sensor and rinse in a mild detergent.

Mechanical damage

Direct probing of the diaphragm can damage the sensor, voiding the warranty.

Never allow the sensor to fall into the liquid, or deliberately drop it into the liquid.

1In case of turbulence, the sensor can be immersed in a pipe, with inside diameter minimum 65 mm (2.56 in)

3 Mechanical Installation

LTU601 Installation and Operation Manual 7

4 Electrical Installation

Precautions

Before starting work, make sure that the safety instructions in the chapter Introduction and

Safety (page 2) have been read and understood.

DANGER: Electrical Hazard

Before starting work on the unit, make sure that the unit and the control panel are isolated

from the power supply and cannot be energized. This applies to the control circuit as well.

DANGER: Electrical Hazard

All electrical equipment must be grounded (earthed). Test the ground (earth) lead to

verify that it is connected correctly. Frequently inspect electrical systems to ensure that the

path to ground is continuous.

WARNING: Electrical Hazard

Risk of electrical shock or burn. A certiﬁed electrician must supervise all electrical work.

Comply with all local codes and regulations.

WARNING: Electrical Hazard

There is a risk of electrical shock or explosion if the electrical connections are not correctly

carried out, or if there is fault or damage on the product. Visually inspect equipment for

damaged cables, cracked casings or other signs of damage. Make sure that electrical

connections have been correctly made.

CAUTION: Electrical Hazard

Prevent cables from becoming sharply bent or damaged.

4.1 Connect the sensor

The sensor is connected to the 4–20 mA input.

1. Connect the red or white wire to the power + 10–30 V DC terminal.

2. Connect the brown wire to the signal/4– 20 mA terminal.

3. Connect the black wire to the signal ground/shield terminal (P/E connection).

4.2 Increase the cable length

When the supplied cable length is insufﬁcient, observe the following:

• Due to the pressure equalization hose in the cable, it cannot be spliced directly to

another cable. Instead, use the junction box for this purpose (Part number 839505).

• Use a shielded cable, to safe guard against electrical disturbance. Signal cables must

never be run in the proximity of power cables.

4 Electrical Installation

8 LTU601 Installation and Operation Manual

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