Xylem Flygt ENM 10 Betriebsanleitung

Flygt ENM 10 Level regulator

Installation, Operation

and Maintenace

Manual

Table of Contents

Introduction............................................................................................................................................ 2

Purpose of this manual....................................................................................................................... 2

Inspect the delivery.............................................................................................................................2

Product warranty................................................................................................................................. 2

Safety....................................................................................................................................................... 4

............................................................................................................................................................... 4

Safety message levels.........................................................................................................................4

User safety............................................................................................................................................ 5

Ex-approved products........................................................................................................................5

Environmental safety...........................................................................................................................6

Electrical Data...................................................................................................................................... 6

Safety data for EX approved installation.......................................................................................... 7

Approvals............................................................................................................................................. 7

Product Description...............................................................................................................................8

............................................................................................................................................................... 8

Installation............................................................................................................................................ 9

Level Regulator..................................................................................................................................10

Connection of Level Regulator for Audible or Visible Alarm...................................................... 12

Ex Installation.....................................................................................................................................12

Maintenance...................................................................................................................................... 13

Available languages............................................................................................................................ 14

.............................................................................................................................................................14

Table of Contents

Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual 1

Introduction

Purpose of this manual

The purpose of this manual is to provide necessary information for:

• Installation

• Operation

• Maintenance

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.

NOTICE:

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

unit.

Inspect the delivery

Inspect the package

1. Inspect the package for damaged or missing items upon delivery

2. Note any damaged or missing items on the receipt and freight bill

3. File a claim with the shipping company if anything is out of order.

If the product has been picked up at a distributor, make a claim directly to the

distributor

Inspect the unit

1. Remove packing materials from the product. Dispose of all packing materials in

accordance with local regulations

2. Inspect the product to determine if any parts have been damaged or are missing

3. If applicable, unfasten the product by removing any screws, bolts, or straps. For your

personal safety, be careful when you handle nails and straps

4. Contact your sales representative if anything is out of order

Product warranty

Coverage

Xylem undertakes to remedy faults in products from Xylem under these conditions:

• The faults are due to defects in design, materials, or workmanship

• The faults are reported to an Xylem representative within the warranty period

• The product is used only under the conditions described in this manual

• The monitoring equipment incorporated in the product is correctly connected and in

use

• All service and repair work is done by Xylem-authorized personnel

• Genuine Xylem parts are used

• Only Ex-approved spare parts and accessories authorized by Xylem are used in Ex-

approved products

Introduction

2 Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual

Limitations

The warranty does not cover faults caused by these situations:

• Deficient maintenance

• Improper installation

• Modifications or changes to the product and installation made without consulting

Xylem

• Incorrectly executed repair work

• Normal wear and tear

Xylem assumes no liability for these situations:

• Bodily injuries

• Material damages

• Economic losses

Warranty claim

Xylem products are high-quality products with expected reliable operation and long life.

However, should the need arise for a warranty claim, then contact your Xylem

representative.

Introduction

Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual 3

Safety

WARNING:

• The operator must be aware of safety precautions to prevent physical injury

• Operating or installing the unit in any way that is not covered in this manual could cause

death, serious personal injury, or damage to the equipment. 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 an Xylem

representative before proceeding

• Do not change the service application without the approval of an authorized Xylem

representative

CAUTION:

You must observe the instructions for installation, operation, and maintenance contained

in this manual. Failure to do so could result in physical injury, damage, or delays.

Safety message levels

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

• Product malfunction

Definitions

Safety message 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

Safety

4 Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual

Safety message level Indication

Electrical Hazard: The possibility of electrical risks if instructions are not

followed in a proper manner

NOTICE:

A potential situation which, if not avoided, could result in

undesirable conditions

A practice not related to personal injury

User safety

General safety rules

These safety rules apply:

• Always keep the work area clean

• Pay attention to the risks presented by gas and vapors in the work area

• Avoid all electrical dangers. Pay attention to the risks of electric shock or arc flash

hazards

• Always bear in mind the risk of drowning, electrical accidents, and burn injuries

Electrical connections

Electrical connections must be made by certified electricians in compliance with all

international, national, state, and local regulations. For more information about

requirements, see sections dealing specifically with electrical connections.

Hazardous liquids

The product is designed for use in liquids that can be hazardous to your health. Observe

these rules when you work with the product:

• Make sure that all personnel who work with sewage systems are vaccinated against

diseases to which they may be exposed

• Observe strict personal cleanliness

Wash the skin and eyes

Do the following if chemicals or hazardous fluids have come into contact with your eyes or

your skin:

If you need to wash your... Then...

Eyes • Hold your eyelids apart forcibly with your fingers

• Rinse the eyes with eyewash or running water for at

least 15 minutes

• Seek medical attention

Skin • Remove contaminated clothing

• Wash the skin with soap and water for at least one

minute

• Seek medical attention, if required

Ex-approved products

Follow these special handling instructions if you have an Ex-approved unit.

Safety

Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual 5

Personnel requirements

These are the personnel requirements for Ex-approved products in potentially explosive

atmospheres:

• All work on the product must be carried out by certified electricians and Xylem-

authorized mechanics. Special rules apply to installations in explosive atmospheres

• All users must know about the risks of electric current and the chemical and physical

characteristics of the gas, the vapor, or both present in hazardous areas

• Any maintenance for Ex-approved products must conform to international and national

standards (including IEC/EN 60079-17).

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

Product and product handling requirements

These are the product and product handling requirements for Ex-approved products in

potentially explosive atmospheres:

• Before you start work on the product, make sure that the product and the control panel

are isolated from the power supply and the control circuit, so they cannot be

energized

• Do not open the product while it is energized or in an explosive gas atmosphere

• Intrinsically safe circuits are normally required for the automatic level-control system by

the level regulator if mounted in zone 0

• Do not modify the equipment without approval from an authorized Xylem

representative

• Only use parts that are provided by an authorized Xylem representative

Environmental safety

The work area

Always keep the station clean to avoid and/or discover emissions.

Recycling guidelines

Always recycle according to these guidelines:

• Follow local laws and regulations regarding recycling if the unit or parts are accepted

by an authorized recycling company

• If the first guideline is not applicable, then return the unit or parts to your Xylem

representative

Waste and emissions regulations

Observe these safety regulations regarding waste and emissions:

• Appropriately dispose of all waste

• Handle and dispose of the processed liquid in compliance with applicable

environmental regulations

• Clean up all spills in accordance with safety and environmental procedures

• Report all environmental emissions to the appropriate authorities

Electrical installation

For electrical installation recycling requirements, consult your local electric utility.

Electrical Data

Country Electrical Data

Canada 5 A, 250 V, DC

10 A, 250 V AC

Denmark 10 A, 250 V, AC

Safety

6 Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual

Country Electrical Data

Switzerland 6 A, 250 V, AC

Sweden 10 A, 230 V, AC Resistive load

3A, 250 V, AC Inductive load

5 A, 30 V, DC Resistive load

*1 mA, 5 V, DC, Gold Contact

* Part no: 594 79 19 & 594 79 20

Safety data for EX approved installation

Maximum input voltage, Ui: 30 V

Maximum input current, Ii: 100 mA

Maximum input power, Pi: 1.2 W

Depth of immersion: Max 20 m

For cable length 20 m:

Maximum internal capacitance, Ci: 1.8 nF

Maximum internal inductance, LI: 10 μH

Approvals

CE, CSA, SEMKO, NEMKO, DEMKO, EX

LVD approval according to EN61058

CSA approval: Cert no. 1330172

Cl.I Zone 0, Gr. IIC;

CL.I Div.1 Gr A, B, C&D

Cl.II Gr. E, F&G

Cl.III when installed to the certified Intrinsically Safe relay, Ex ia, rated for the locations per

submitter control drawing and installation manual.

Ex approval:

IECEx ia IIC T4 Ga: -20°C<Ta<60°C

IECEx NEMKO 09.008

ATEX II 1G ia IIC T4

NEMKO 10ATEX 1082

The applied standards are:

EN 60079-0:2009/IEC 60079-0:2007

EN 60079-11:2007/IEC 60079-0:2006

EN 60079-26:2007/IEC 60079-26:2006

Intrinsically safe circuits are required for the automatic control system. - Use a EX-safety

barrier (e.g. Prod. no. 84 01 07).

0080

Safety

Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual 7

Product Description

Overview

The simplest possible method for level control! A mechanical switch in a plastic casing,

freely suspended at the desired height from its own cable. When the liquid level reaches

the regulator, the casing will tilt and the mechanical switch will close or break the circuit,

thereby starting or stopping a pump or actuating an alarm device. No wear, no

maintenance! In sewage pumping stations, for ground water and drainage pumping — in

fact, for most level control applications — the ENM-10 is the ideal solution.

The regulator casing is made of polypropylene and the cable is sheathed with a special

PVC or Nitrile/PVC rubber compound. The plastic components are welded and screwed

together. Adhesive is never used. Impurities and deposits will not adhere to the smooth

casing.

The version for Ex-applications has a black casing, made conductive by adding carbon to

the polypropylene.

The level regulator contains a micro switch, max rated 250 VAC/10 A.

NOTICE:

In many cases, local codes require that the regulator be connected to a low-voltage

supply, even though it is approved for a higher voltage.

Xylem recommends that the regulator be connected to a low-voltage supply, 48 or 24 V,

and a protective transformer.

Special rules apply to installation in an explosive atmosphere. Intrinsically safe circuits are

normally required (Ex i). Use a EX-safety barrier (e.g. Prod. no. 84 01 07).

The ENM-10 is available in different versions for different liquid densities.

As standard, the regulator can be obtained with 6, 13, 20, 30 or 50 metres (20, 42, 65, 100

or 167 feet) of cable for liquids with specific density between 0.95 and 1.10 g/cm3; for

other specific densities.

For the Ex-version, the regulator is only available with 20 metres (65 ft) of Nitrile/PVC

rubber cable.

The regulator can withstand up to 60°C (140°F).

The guarantee does not cover faults caused by deficient maintenance, improper

installation, incorrectly executed repair work or normal wear and tear.

Xylem assumes no liability for either bodily injuries, material damages or economic losses.

Product coverage

This manual cover the standard version “Blue casing” of ENM-10.

Product coverage

This manual cover the EX-version “Black casing” of ENM-10.

Product Description

8 Flygt ENM 10 Level regulator Installation, Operation and Maintenace Manual

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