Technical specificationENM-10 Level regulator

PRODUCT DESCRIPTIONThe simplest possible method for level control! Amechanical switch in a plastic casing, freely suspendedat the desired height from its own cable. When the liquidlevel reaches the regulator, the casing will tilt and themechanical switch will close or break the circuit, therebystarting 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, formost level control applications — the ENM-10 is the idealsolution.

The regulator casing is made of polypropylene and thecable is sheathed with a special PVC compound. Theplastic components are welded and screwed together.Adhesive is never used. Impurities and deposits will notadhere to the smooth casing.

This level regulator is available in different versions,depending upon the medium in which it is to be used. Asstandard, the regulator can be obtained with 6, 13, 20, 30or 50 metres (20, 42, 65, 100 or 167 feet) of cable for liquidswith specific density between 0.95 and 1.10 g/cm3; forother specific densities, the regulator is only available with20 metres (65 ft) of cable. The regulator can withstand upto 60°C (140°F).

Technical dataLiquid temperature: min. 0°C (32°F)

max. 60°C (140°F)

Liquid density: min. 0.65 g/cm3

max. 1.5 g/cm3

Degree of protection: IP68, 20 m (65 ft)

Interrupting capacity AC, resistive load, 250V 10Aof micro switch: AC, inductive load, 250V 3A

cos ϕ = 0.5DC, 30V 5A

Note that local regulations may limit the voltage.

Approvals: CSA, SEMKO, NEMKO,CEApproved according toEN61058

Weight: approx. 2 kg (4.5 lb) for astandard density regulatorwith 20 m cable.

MaterialsBody: polypropyleneBending relief: EPDM rubberCable: special compound PVC or

chlorinated polyethylene CPErubber

Blue Blue

Brown Brown

Black Black

Dimensions

For density Hauteur du Diameterg/cm3 régulateur en mm (in)

0.65—0.80 194 (7110/161) 100 (4)

0.80—0.95 177 (719/ 161) 100 (4)

0.95—1.10 162 (613/861 ) 100 (4)

1.05—1.20 142 (519/161 ) 100 (4)

1.20—1.30 133 (511/461 ) 100 (4)

1.30—1.40 130 (512/161 ) 100 (4)

1.40—1.50 126 (519/16 1) 100 (4)

Regulatorlengthmm (in)

Colour code

Blu

e

Bro

wn

Bla

ck

Blu

e

Bro

wn

Bla

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CHEMICAL RESISTANCE LIST

0 = No effect, 1 = Minor to moderate, 2 = Severe effect. — = No information available.

The liquid in which level regulation is practiced mostfrequently is, of course, water. Of the millions of re-gulators in use all over the world today, it is estima-ted that nine out of ten work in water.

However, with a float body of polypropylene, a cableof PVC or CPE and a bending relief of EPDM rubber,the ENM-10 is virtually insensitive to many aggressiveliquids.

The table shows how resistant the ENM-10 equippedwith either PVC or CPE cable, is to different chemicalsat two different temperatures. The classification isbroken down into the following categories:

0 = No effect, 1 = Minor to moderate and 2 = Severeeffect. The sign — means that information is not avai-lable.

Keep in mind also that the density of the liquid deter-mines the bouyancy of the regulator. The ENM-10 ismade for seven different densities. See page 2.

PVC cable CPE cable PVC cable CPE cable Solvents and PVC cable CPE cable

Acids Salts miscellaneous20°C 60°C 20°C 60°C 20°C 60°C 20°C 60°C 20°C 60°C 20°C 60°C

(68°F) (140°F) (68°F) (140°F) (68°F) (140°F) (68°F) (140°F) (68°F) (140°F) (68°F) (140°F)

Acetic Acid 50% 1 2 0 0Acetic Acid 75% 2 2 0 0Benzoic Acid 2 2 0 0Boric Acid 5% 0 — 0 0Butyric Acid 2 2 2 2

Chromic Acid 10% 0 2 2 2Citric Acid 0 1 0 0HydrobromicAcid 5% 1 2 0 0HydrochloricAcid 10% 0 1 0 1HydrochloricAcid 37% 1 2 0 2

HydrocyanicAcid 10% 0 0 1 2HydrofluoricAcid 5% 0 2 0 1Hypochloric Acid 1 2 2 2Maleic Acid 2 2 2 2Nitric Acid 5% 1 1 1 1

Nitric Acid 65% 2 2 2 2Oleic Acid 1 2 2 2Oxalic Acid 50% 1 1 1 2PhosphoricAcid 25% 0 0 1 2PhosphoricAcid 85% 0 0 1 2

Sulphuric Acid 10% 1 2 1 2Sulphuric Acid 78% 2 2 2 2Tannic Acid 0 0 0 0Tartaric Acid 1 1 1 1

Bases

AmmoniumHydroxide 0 — 0 0Calcium Hydroxide 0 0 0 0PotassiumHydroxide 1 2 0 0Sodium Hydroxide 1 2 0 0

Aluminium Chloride 0 0 0 0Calcium Sulphate 0 0 0 0Calcium Chloride 0 0 0 0Calcium Nitrate 0 0 0 0Copper Chloride 0 0 0 0

Copper Sulphate 0 0 0 0Ferric Chloride 0 0 0 0Ferrous Sulphate 0 0 0 0Magnesium Chloride 0 0 0 0Potassium Sulphate 0 0 0 0

Potassium Nitrate 0 0 0 0PotassiumCarbonate 1 1 1 1PotassiumBicarbonate 0 0 0 0

Sodium Sulphate 0 0 0 0Sodium Chloride 0 0 0 0Sodium Nitrate 0 0 0 0Sodium Bicarbonate 0 0 0 0Sodium Carbonate 0 0 0 0

Tin Chloride 1 1 1 1Zinc Sulphate 0 0 0 0Zinc Chloride 0 0 0 0

Oils

Castor Oil 1 1 1 1Cocoanut Oil 0 — 0 2Corn Oil 2 2 2 2Diesel Oil 2 2 2 2

Linseed Oil 2 2 2 2Mineral Oils 2 2 2 2Olive Oil 1 1 1 1Silicone Oils 0 0 0 0

Aceton 2 2 2 2Aniline 2 2 1 2Benzene 2 2 2 2Butyl Alcohol 2 2 0 1CarbonTetrachloride 2 2 2 2

Chlorobenzene 2 2 2 2Chloroform 2 2 2 2Ethyl Alcohol 2 2 0 1Ethyl Ether 2 2 2 2Ethyl Acetate 2 2 2 2

Ethylene Dichloride 2 2 2 2Ethylene Chloride 2 2 2 2Formaldehyde 37% 1 2 0 0Gasoline 2 2 2 2Kerosene 2 2 2 2

Methyl Alcohol 2 2 0 0Methyl Ethyl Ketone 2 2 2 2Methylene Chloride 2 2 2 2Nitrobenzene 2 2 2 2Phenol 2 2 2 2

Toluene 2 2 2 2Trichlorethylene 2 2 2 2Turpentine 2 2 2 2Xylene 2 2 2 2

Gases

Carbon Dioxide 0 0 0 0Carbon Monoxide 0 0 0 0Chlorine (wet) 2 2 2 2Hydrogen Sulphide 0 0 1 1Sulphur Dioxide(wet) 1 1 2 2

Always observe local regulations:Take particular note of:• risk of fire/explosion• hygiene requirements

Wiring alternativeTo conform to local regulations,the level regulators are normallyconnected through a transformerto a low-tension control circuit.Two regu-lators are used — onefor starting and one for stopping. Athird regulator can be connected ifan alarm is required at a givenlevel. Identical regulators can beused for all functions.

Let the level drop . . . . . . to the lowest permissiblepoint.

The regulator will thenreact . . .

. . . so the process isreversed.

At the highest permissiblepoint . . .

. . . level regulator IIreacts . . .

. . . in the opposite fashion.

A. Connected for emptyingConnect the blue and black leads.Insulate the brown lead.

B. Connected for fillingConnect the blue and brown leads.Insulate the black lead.

The manufacturers reserve the right to alterperformance specification or design without notice.

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