Level Sensor - Installation, Operation and Maintenace Manual

Installation, Operation andMaintenace ManualENM 10 Level regulator

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

NOTE! Save this manual for future reference, and keep it readily available at the location ofthe unit.

Inspect the delivery

Inspect thepackage

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 retail dealer if anything is out of order.If the product has been picked up at a distributor, make a claim directly to thedistributor

Inspect theunit

1. Remove packing materials from the product. Dispose of all packing materials inaccordance 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. Foryour personal safety, be careful when you handle nails and straps

4. Contact your retail dealer if anything is out of order

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

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 couldcause death, serious personal injury, or damage to the equipment. This includesany modification to the equipment or use of parts not provided by your retaildealer. If there is a question regarding the intended use of the equipment, pleasecontact your retail dealer before proceeding

Do not change the service application without the approval of an authorizedservice representative

CAUTION!You must observe the instructions for installation, operation, and maintenancecontained in this manual. Failure to do so could result in physical injury, damage,or delays.

Safety message levels

About safetymessages

It is extremely important that you read, understand, and follow the safety messages andregulations carefully before handling the product. They are published to help preventthese hazards:

Personal accidents and health problems

Damage to the product

Product malfunction

DefinitionsSafety 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

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

Safety message level Indication

High Voltage

HIGH VOLTAGE!The possibility of electrical risks ifinstructions are not followed in a propermanner

NOTE! A potential situation which, if not avoided,could result in undesirable conditionsA practice not related to personal injury

User safety

General safetyrules

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 flashhazards

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

Electricalconnections

Electrical connections must be made by certified electricians in compliance withall international, national, state, and local regulations. For more information aboutrequirements, see sections dealing specifically with electrical connections.

Hazardousliquids

The product is designed for use in liquids that can be hazardous to your health. Observethese rules when you work with the product:

Make sure that all personnel who work with sewage systems are vaccinated againstdiseases to which they may be exposed

Observe strict personal cleanliness

Wash the skinand eyes

Do the following if chemicals or hazardous fluids have come into contact with your eyes oryour 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 forat least 15 minutes

Seek medical attention

Skin Remove contaminated clothing

Wash the skin with soap and water for at leastone minute

Seek medical attention, if required

Environmental safety

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

Recyclingguidelines

Always recycle according to these guidelines:

Follow local laws and regulations regarding recycling if the unit or parts are acceptedby an authorized recycling company

If the first guideline is not applicable, then return the unit or parts to your retail dealer

Waste andemissionsregulations

Observe these safety regulations regarding waste and emissions:

Appropriately dispose of all waste

Handle and dispose of the processed liquid in compliance with applicableenvironmental regulations

Clean up all spills in accordance with safety and environmental procedures

Report all environmental emissions to the appropriate authorities

Electricalinstallation

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

Electrical Data

Country Electrical Data

Canada 5 A, 250 V, DC10 A, 250 V AC


Country Electrical Data

Denmark 10 A, 250 V, AC

Switzerland 6 A, 250 V, AC

Sweden 10 A, 230 V, AC Resistive load3A, 250 V, AC Inductive load5 A, 30 V, DC Resistive load*1 mA, 5 V, DC, Gold Contact

* Part no: 594 79 19 & 594 79 20

Approvals

CE, CSA, SEMKO, NEMKO, DEMKO, EX

LVD approval according to EN61058

CSA approval: Cert no. 1330172Cl.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 persubmitter control drawing and installation manual.


Product DescriptionOverview 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 reachesthe regulator, the casing will tilt and the mechanical switch will close or break thecircuit, thereby starting or stopping a pump or actuating an alarm device. No wear, nomaintenance! In sewage pumping stations, for ground water and drainage pumping infact, 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 specialPVC or Nitrile/PVC rubber compound. The plastic components are welded and screwedtogether. Adhesive is never used. Impurities and deposits will not adhere to the smoothcasing.

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

NOTE! In many cases, local codes require that the regulator be connected to a low-voltagesupply, even though it is approved for a higher voltage.

We recommends that the regulator be connected to a low-voltage supply, 48 or 24V, and a protective transformer.

Special rules apply to installation in an explosive atmosphere. Intrinsically safe circuits arenormally 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; forother specific densities.

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

The guarantee does not cover faults caused by deficient maintenance, improperinstallation, incorrectly executed repair work or normal wear and tear.

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

Productcoverage

This manual cover the standard version Red casing of ENM-10.

FunctionalDescription

1 32 4

1. When the pumped media reaches a predetermined level, the upper level regulatortips over to horizontal position and the pump starts draining the basin.

2. The basin is drained of fluid.3. The pump stops when the lower level regulator returns to the vertical position.4. The basin starts filling up again, and the process starts all over again.


Installation

Avoid damagethe levelregulatorduringinstallation

Do not crossthe levelregulatorcables duringinstallation

Level Regulator

Connectionillustration

To conform to local regulations, the level regulators are normally connected through atransformer to a low-tension control circuit.

Two regulators are used; one for starting and one for stopping.

A third regulator can be connected if an alarm is required at a given level.

Identical regulators can be used for all functions.


Emptying Filling

M3

M2

M124V

Start

Stop

M3

M2

M124V

Stop

Start

Connectiontable Cable 1 2 3

Color EU, GreyUS, Red

Black EU, BrownUS, White

Connections for emptying a sump X X Insulate

Connections for filling a tank X Insulate X

Cable colors

1 2 3 1 2 3

See table above to identify related cable colors.


Connection of Level Regulator for Audible or Visible Alarm

Connectionillustration

AlarmHigh Level

AlarmLow Level

1 21 3

1 2 3 1 2 3

Connectiontable Cable 1 2 3

Color EU, GreyUS, Red

Black EU, BrownUS, White

Alarm high level X X Insulate

Alarm low level X Insulate X

Maintenance

ENM-10 is very durable and practically maintenance free. You only have to check on itoccasionally, to ensure its continual operation.

It is recommended to occasionally clean ENM-10, and especially when fat/greasecovers the plastic surface

At the same time, make an occular inspection of the regulator to make sure neithercable, protective sleeve or plastic casing show any signs of damage

A damaged ENM-10 cannot be repaired in any way, due to the hermeticencapsulation. If the unit is found to be damaged, replace it with a new one


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Level Sensor - Installation, Operation and Maintenace Manual

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