Kobold M Series, M01, M05, M02, M06 Operating Instructions Manual

Operating Instructions

for

Magnetic Level Switches

Model : M Series

M series

1. Contents

1. Contents .......................................................................................................... 2

2. Note ................................................................................................................ 3

3. Instrument Inspection ...................................................................................... 3

4. Regulation Use ............................................................................................... 3

5. Float designs ................................................................................................... 4

6. Operating Principle ......................................................................................... 6

7. Mechanical Connection ................................................................................... 6

8. Area of application .......................................................................................... 6

9. Maintenance ................................................................................................... 6

10. Technical Data .............................................................................................. 7

11. Electrical Information..................................................................................... 8

12. Safety Instructions ( ATEX ) ........................................................................ 13

12.1 Area of validity ..................................................................................... 13

12.2 Guidelines. .......................................................................................... 13

12.3 Protection against ESD ( electro static discharges ) ........................... 14

12.4 Chemical resistance ............................................................................ 14

12.5 Maintenance and repairs ..................................................................... 14

12.6 Storage ............................................................................................... 14

13. ATEX Label Description .............................................................................. 14

14. Installation in hazardous zone ..................................................................... 15

15. Electrical connection in ATEX zone ............................................................ 16

15.1 Electrical connection in intrinsically safe mode Ex ia ......................... 16

15.2 Electrical connection in explosion proof mode Ex d ............................ 16

16. Declaration of conformity ATEX Ex ia ......................................................... 17

17. Declaration of conformity ATEX Ex d .......................................................... 18

18. Declaration of conformity ............................................................................ 19

19. ATEX Certified ............................................................................................ 20

20. Notes ........................................................................................................... 30

Manufactured by:

Kobold Mesura S.L.U.

Avda. Conflent 68 nave 15

08915 Badalona Tel.: +34 93 460 38 83 Fax: +34 93 460 38 76

E-Mail: info.es@kobold.com

Internet: www.kobold.com

Edition: june 2017

page 2 DT0493

M series

2. Note

Please read these operating instructions before unpacking and setting the unit into operation. Follow the instructions precisely as described herein. The devices are only to be used, maintained and serviced by persons familiar with these operating instructions and in accordance with local regulations applying to Health & Safety and prevention of accidents.

When used in machines, the measuring unit should be used only when the machines fulfil the EC-machine guidelines.

3. Instrument Inspection

Instruments are inspected before shipping and sent out in perfect condition. Should damage to a device be visible, we recommend a thorough inspection of the delivery packaging. In case of damage, please inform your parcel service / forwarding agent immediately, since they are responsible for damages during transit.

Scope of delivery: The standard delivery includes:

 Magnetic Level Switches for Liquids model: M-...  Operating Instruction

All parts falling under the standard scope of delivery are properly assembled within the unit.

4. Regulation Use

Magnetic Level Switches are employed for monitoring and control of liquid-levels in boilers and containers. There are innumerable and diverse applications that require these Magnetic Level Switches to be made according to customers' specific requirements.

Attention! These units should not be installed in the vicinity of strong magnetic fields, since this can impair their intended functionality.

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M series

5. Float designs

Float

Model Form Materials

Cylinder

M01

M02

M03

M04

M05

M061)

M07

M08

M10

M11

M13

M16

M20

solid material Cylinder

Hollow

Cylinder

hollow

Ball

hollow

Cylinder

hollow

Cylinder

solid material Cylinder

hollow

Cylinder

hollow

Ball

hollow

Ball

hollow

Cylinder

hollow

Cylinder

hollow

Ball

hollow

NBR 18 25 10 > 0.6 80 °C 10 bar

PP 26 16 10 > 0.65 80 °C 3 bar

PVC-U 26 26 10 > 0.9 55 °C 3 bar

St. steel

1.4404

PP 42 40 14 > 0.6 80°C 3 bar

PP 40 20 14 > 0.9 90 °C 100 bar

PVC-U 42 40 14 > 0.9 55 °C 3 bar

St. steel

1.4404

St. steel

1.4404

St. steel

1.4404

PVDF 38 60 18 > 0.6 125°C 2 bar

PVC-U 60 60 18 > 0.8 55°C 3 bar

St. steel

1.4404

Outside

 [mm]

30 28 9 > 0.8 150 °C 15 bar

44 52 15 > 0.65 150°C 20 bar

52 52 15 > 0.6 150°C 30 bar

95 95 20.8 > 0.5 150°C 15 bar

1) For M06 model. one float is required for each switch point. For all other floats two contacts can be operated with one float.

Height

[mm]

Hole 

Bore

[mm]

Min. Liquid

Density

[kg/dm³]

Max.

Temperature

°C

Nominal

Pressure

[bar] at

20 °C

page 4 DT0493

M series

Supplementary devices:

1. Contact protection relays

We recommend the use of contact protection relays in conjunction with sealed contacts. Contact protection relays have the following advantages:

 No contact overloads arising from sparking and high currents, which can,

for example, be caused by self-induced e.m.f.`s when switching solenoid valves.

 Float switches are electrically isolated from the high voltage power supply

system.

 Protection for persons who come into contact with liquids according to

VDE 0100.

 Standard models:

Mod. MSR 10 1 channel, 1 changeover Mod. MSR 20 2 channels, 2 changeover

Mod. MSR 11 2 channels, 1 changeover bistable

 Atex models:

Mod. KFD2-SR2-Ex1.W 1 channel, 1 relay output, supply 24 VDC Mod. KFA6-SR2-Ex1.W 1 channel, 1 relay output, supply 230 VAC Mod. KFD2-SR2-Ex2.W 2 channel, 2 relay output, supply 24 VDC Mod. KFA6-SR2-Ex2.W 2 channel, 2 relay output, supply 230 V

2. Damping tube for agitated liquids

Float switches with damping tube for agitated or dirty liquids can be supplied upon request.

3. Temperature monitoring

Float switches with integrated temperature switch, fixed switch point between

60 °C and 150 °C upon request.

Option: Pt 100 available

4. Mounting instructions Float switches can also be fitted in the bottom for vessels. Attention: The contact operation is then reversed.

AC

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M series

6. Operating Principle

Kobold magnetic float switches are fitted with a hermetically sealed contact which is situated in the tube. The float sliding on the tube contains a ring magnet whose magnetic field switches the sealed contact in a non-contacting fashion. The sealed contacts are available as N/O, N/C or changeover contacts. The float sliding up and down on the liquid is the only moving part in the Kobold magnetic float switches.

7. Mechanical Connection

The slide-tube of the float switch may not be bent or exposed to hard impacts, since otherwise the reed contacts inside the tube can be damaged. Adjustment-rings or anchor-clamps may not be readjusted, since otherwise the switching function (N.O. contact, N.C. contact or changeover switch) is no more guaranteed. Ensure the correct use of cable gland and gasket on float switches with plug to prevent the penetration of humidity. While installation is carried out, please ensure that the float can move freely (due allowance should be given to distances from side-walls!). Mounting position of the slide-tube may not deviate more than ±30° from vertical position. If the float has to be removed, pay attention to correct orientation when replacing the float.

8. Area of application

Magnetic level switch M series are used exclusively for level control and monitoring of liquid media. The liquids should not contain suspended solids or tendency to crystallize. Ensure that the construction materials of the float switch have chemical resistance sufficient to prevent mechanical deformations that may affect it.

9. Maintenance

In liquids that can cause deposits, the float has to be cleaned at regular intervals. In this case the measuring tube and float should be cleaned from such deposits. Other maintenance jobs are not required.

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M series

10. Technical Data

Contact NO/NC: 230 V Contact SPDT: 100 V Contact NO/NC: 230 V

Contact SPDT: 230 V

/ 0,5 A / 10 VA ( M01...M04 )

AC/DC

/ 0,5 A / 3 VA ( M01...M04 )

AC/DC

/ 1 A / 60 VA ( M05...M20 )

AC/DC

/ 1 A / 60 VA ( M05...M20 )

AC/DC

Atex Exia version : Ui: 40V

Protection type: IP64 ( M01...M04 ), IP65 ( M05...M20 ) IP65 ( all models with connection head )

Min. liquid density: See float design table

Max. pressure (at 20ºC): 2 bar ( M13 ) 3 bar ( M02, M03, M05, M16 ) 3 bar ( M01 with PVC tube ) 10 bar ( M01 with st. st. or brass tube ) 15 bar ( M04, M20 ) 20 bar ( M08 ) 30 bar ( M10, M11 ) 100 bar ( M06 )

Max. temp. with PVC cable: 55ºC ( models with PVC tube )

70ºC ( Models without PVC tube )

Max. temp. with. silicone cable: See max. temperature in float design table

Max. length of guide tube: 1 m ( PVC Ø8 mm ) 2 m ( st. st. or brass Ø8 mm ) 2 m ( PVC Ø12 mm ) 3 m ( PVDF or PVC Ø16 mm ) 4 m ( st. st. or brass Ø12 mm )

6 m ( st. st. Ø18 mm )

Hysteresis: 3-5 mm difference in level

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M series

Definition of switching points referred to density 1 Kg/dm

L1

L2

L3

L4

L0

3

Attention models without earth conductor must be used only with safety extra low voltage ( i.e. contact protection relays ) or external earthing.

11. Electrical Information

Performance data indicated on the device label are absolute maximum ratings,

which may not be exceeded even for brief periods of time. They refer to ohmic

load (resistive load). When switching inductances (e.g. coils from relays and contactors), the contacts of the float switches should be protected employing suitable means from high cut-off voltage surges.

Examples of protection circuitry

For capacitive, inductive and lamps load, we recommend our contact protection

relays or the following suppressor circuits.

Lamp load with series or parallel Protection with a RC suppressor resistance to the reed switch. for a.c. current and inductive load load.

Protection with a diode Protection with an inductance or for d.c. current and inductive load. resistance for capacitive load.

page 8 DT0493

M series

The Magnetic Level Switches are connected according to the following connection diagrams.

Attention! While making electrical connections of these devices, please observe relevant safety measures, norms, regulations and ECguidelines, in particular, DIN VDE 0100, section 610. Float switches made of PVC can be used up to max. 55 °C!

Connection diagrams

Terminal

connection

coding in

connection

head

1 WH White 2 BN Brown 3 GN Green 4 YE Yellow 5 GR Grey 6 PK Pink 7 BU Blue 8 RD Red 9 BK Black

* For special cables the codification is by numbers

Models with Plug 3-pole

L1- S or C L1- W

Models with Plug 6-pole

L1- S or C L2- S or C L3- S or C

L1- W

Cable colour

coding

(DIN47100) for

standards in

silicone and PVC

L1- S or C

L2- S or C

L1- W

L2- W

page 9 DT0493

M series

Models M01….M04

1 switch point ( L1 )

L1- S or C L1- W

2 switch points ( L1, L2 )

L1- S or C L2- S or C

3 switch points ( L1, L2, L3 )

L1- S or C L2- S or C

L3- S or C

L1- W L2- W

L1- W L2- S or C

L1- S or C

L2- W

page 10 DT0493

M series

Models M05….M20

1 switch point ( L1 )

L1- S or C L1- W

2 switch points ( L1, L2 )

L1- S or C L2- S or C

3 switch points ( L1, L2, L3 )

L1- S or C L2- S or C L3- S or C

L1- W L2- W

L1- W L2- W L3- W

L1- S or C L2- W L1- W

L1- S or C L2- S or C L3- W

L2- S or C

L1- S or C L2- W L3- S or C

L1- W L2- S or C L3- S or C

L1- W L1- W L3- S or C

L1- W L2- S or C

L3- W

page 11 DT0493

M series

4 Switch points ( L1, L2, L3, L4 )

L1- W L2- S or C L3- S or C L4- S or C

L1- S or C L2- S or C L3- S or C L4- S or C

L1- S or C L2- W L3- S or C L4- S or C

L1- S or C L2- S or C L3- W L4- S or C

L1- S or C L2- S or C L3- S or C L4- W

page 12 DT0493

M series

12. Safety Instructions ( ATEX )

12.1 Area of validity

These security instructions apply to M...E series magnetic level switch for use in explosion-proof atmospheres conform to CE certificate LOM 06ATEX2054 X and

M…F series conforming to CE certificate LOM 14ATEX2075 X

12.2 Guidelines.

These security instructions must be applied to the M...E and M...F series used in

gas or dust explosion hazard environments, category 1G/D.

It is necessary to follow carefully the instructions from the hazardous areas where

the M...E or M...F will be installed, as well as the safety instructions included in this

manual.

Temperature class and/or surface temperature relates solely to a device operated at ambient temperature. On installation, the actual temperature class for process operation has to be determined.

The maximum temperature in the enclosure head depends on the process temperature and may not exceed the maximum service temperature indicated for

the junction box for the instruments M…F series.

The guide tube must be mechanically protected or in locations with low risk of

impact for the instruments M…F series.

When the tank inside is a zone 0, a degree of protection at least IP67 must be

ensured in the process connection for the instruments M…F series.

Inlet bushing and cable glands must conform to the certification for their type in accordance with the directive.

Models without head box must be protected with an enclosure having at least a

degree of protection IP20 for M...E series.

The use in zone 0 of heads made of aluminium should be restricted to locations where the risk of ignition due to mechanical impact is not possible.

Verify that all data written in the label of the device matches the data required for the installation.

Verify that there is no mechanical stress or deformation due to installation in the tank.

Remove power supply and verify that no explosion risk is present before opening cover of the housing and check that the cover of housing is correctly mounted before

applying power to the instruments M…F series.

page 13 DT0493

M series

The installation of instruments in hazardous areas must be exclusively done by trained people.

12.3 Protection against ESD ( electro static discharges )

Instruments with plastic parts that can produce electro statics discharges, have a label for it. It is important to follow some rules to avoid ESD:

- Avoid rubbing the device.

- Never clean the device dry.

- Do not install the device near material airflows or near steam outlets.

12.4 Chemical resistance

Ensure that the device construction materials have chemical resistance sufficient to prevent mechanical deformations that may affect the device.

12.5 Maintenance and repairs

The instrument does not require maintenance or servicing. Repairs must be only carried out by Kobold Mesura ( manufacturer ).

12.6 Storage

Measuring instruments should be protected against humidity and dust. Storage temperature: -5…+55ºC

13. ATEX Label Description

page 14 DT0493

M series

14. Installation in hazardous zone

In classified zones, magnetic level switches series M…E (intrinsically safe version), can be installed in zone 0, 1 and 2 and series M…F (explosion proof version) can be

installed in zone 0,1 and 2. Installation must be done by people trained regarding ATEX environments.

Intrinsically safe version Explosion proof version

page 15 DT0493

M series

15. Electrical connection in ATEX zone

15.1 Electrical connection in intrinsically safe mode Ex ia

15.2 Electrical connection in explosion proof mode Ex d

page 16 DT0493

M series

16. Declaration of conformity ATEX Ex ia

DECLARACIÓN DE CONFORMIDAD EU

EU DECLARATION OF CONFORMITY

EU-KONFORMITÄTSERKLÄRUNG

DÉCLARATION DE CONFORMITÉ EU

DICHIARAZIONE DI CONFORMITÀ EU

KOBOLD MESURA SLU

Avda. Conflent 68 nave 15 08915 Badalona (España)

Declara, bajo la propia responsabilidad, que el producto

Declares under our sole responsibility, that the product Erklärt in alleiniger Verantwortung, dass das Produkt Déclare sous sa seule responsabilité, que le produit Dichiara sotto la propia responsabilità, che il prodotto

Magnetic level switch M..E

A los cuales se refiere esta declaración, son conformes a las siguiente Directivas Europeas:

To which this declaration relates is in conformity with the following European Directives: Mit folgenden Euroäischen Richtlinien Konform ist: À auxquels se réfère cette déclaration, ils sont conformes aux Directives Européennes suivant : A ai quali si riferisce questa dichiarazione, sono conformi alle direttive europee seguente:

EMC2014/30/EU LVD2014/35/EU ATEX2014/34/EU RoHS2011/65/EU

Normas armonizadas y documentos de la normativa aplicados:

Applied harmonised standards and normative documents: Angewandte harmonisierte Normen und normative Dokumente: Normes harmonisées et documents normatifs appliqués Norme armonizzate e documenti normativi applicati:

EN61010-1 :2011 EN60079-0:2012 (acc. EN60079-0:2013) EN61000-6-2 :2006 EN60079-11:2012 ( acc. EN60079-11:2013) EN60079-31:2009 (acc. EN60079-31:2016)

Certificado de examen CE de tipo Marcado

EC-type examination certificate Marking EG-baumusterprüfbescheinigung Kennzeichnung Attestation d´examen CE de type Inscription Certificazione per esame di tipo CE Marcatura

LOM06ATEX2054X

II 1 GD Ex ia IIC T6 Ga / Ex ia IIIC T85ºC Da

-20≤Ta≤+60ºC

Fabricado en: KOBOLD MESURA SLU Avda. Conflent 68 nave 15 08915 BADALONA (Spain)

Made in: Hergestellt in: Fabriqué dans: Fabbricato in:

Organismo notificado

Notified organism Notification number Zertifizierungsstelle Zertifikatsnummer Organization annoncée Nombre notification Organismo informato Notifica di numero

: LOM 0163 Número notificación : LOM 05ATEX9070

Badalona june 2017

DT0497

Gerente

page 17 DT0493

M series

17. Declaration of conformity ATEX Ex d

DECLARACIÓN DE CONFORMIDAD EU

EU DECLARATION OF CONFORMITY

EU-KONFORMITÄTSERKLÄRUNG

DÉCLARATION DE CONFORMITÉ EU

DICHIARAZIONE DI CONFORMITÀ EU

KOBOLD MESURA SLU

Avda. Conflent 68 nave 15 08915 Badalona (España)

Declara, bajo la propia responsabilidad, que el producto

Declares under our sole responsibility, that the product Erklärt in alleiniger Verantwortung, dass das Produkt Déclare sous sa seule responsabilité, que le produit Dichiara sotto la propia responsabilità, che il prodotto

Liquid level transducer M..F

A los cuales se refiere esta declaración, son conformes a las siguiente Directivas Europeas:

To which this declaration relates is in conformity with the following European Directives: Mit folgenden Euroäischen Richtlinien Konform ist: À auxquels se réfère cette déclaration, ils sont conformes aux Directives Européennes suivant : A ai quali si riferisce questa dichiarazione, sono conformi alle direttive europee seguente:

EMC2014/30/EU LVD2014/35EU Atex2014/34/EU RoHS2011/65/EU

Normas armonizadas y documentos de la normativa aplicados:

Applied harmonised standards and normative documents: Angewandte harmonisierte Normen und normative Dokumente: Normes harmonisées et documents normatifs appliqués Norme armonizzate e documenti normativi applicati:

EN61010-1 :2011 EN60079-0:2012 (acc. EN60079-0:2013) EN61000-6-2 :2006 EN60079-31:2009 (acc. EN60079-31:2016) EN61326-1:2013 EN60079-1:2007 (acc. EN60079-1:2015) EN60079-26:2007 (acc. EN60079-26:2015)

Certificado de examen CE de tipo Marcado

EC-type examination certificate Marking EG-baumusterprüfbescheinigung Kennzeichnung Attestation d´examen CE de type Inscription Certificazione per esame di tipo CE Marcatura

LOM 14ATEX2075 X

II 1/2 G Ex d IIC T1..T6 Ga/Gb

II 2 D Ex t IIIC T410..T85ºC Db

Fabricado en: KOBOLD MESURA SLU Avda. Conflent 68 nave 15 08915 BADALONA (Spain)

Made in: Hergestellt in: Fabriqué dans: Fabbricato in:

Organismo notificado

Notified organism Notification number Zertifizierungsstelle Zertifikatsnummer Organization annoncée Nombre notification Organismo informato Notifica di numero

: LOM 0163 Número notificación : LOM 05ATEX9070

Badalona Junio 2017 Gerente DT0627

page 18 DT0493

M series

18. Declaration of conformity

DECLARACIÓN DE CONFORMIDAD EU

EU DECLARATION OF CONFORMITY

EU-KONFORMITÄTSERKLÄRUNG

DÉCLARATION DE CONFORMITÉ EU

DICHIARAZIONE DI CONFORMITÀ EU

KOBOLD MESURA SLU

Avda. Conflent 68 nave 15 08915 Badalona (España)

Declara, bajo la propia responsabilidad, que el producto

Declares under our sole responsibility, that the product Erklärt in alleiniger Verantwortung, dass das produkt Déclare sous sa seule responsabilité, que le produit Dichiara sotto la propia responsabilità, che il prodotto

Magnetic level switch M…

A los cuales se refiere esta declaración, son conformes a las siguiente Directivas Europeas:

To which this declaration relates is in conformity with the following European Directives: Mit folgenden Euroäischen Richtlinien Konform ist: À auxquels se réfère cette déclaration, ils sont conformes aux Directives Européennes suivant : A ai quali si riferisce questa dichiarazione, sono conformi alle direttive europee seguente:

EMC2014/30/EU LVD2014/35/EU RoHS2011/65/EU

Normas armonizadas y documentos de la normativa aplicados:

Applied harmonised standards and normative documents: Angewandte harmonisierte Normen und normative Dokumente: Normes harmonisées et documents normatifs appliqués Norme armonizzate e documenti normativi applicati:

EN61010-1 :2011 EN61000-6-2 :2006

Fabricado en: KOBOLD MESURA SLU Avda. Conflent 68 nave 15 08915 BADALONA (Spain)

Made in: Hergestellt in: Fabriqué dans: Fabbricato in:

Badalona April 2016 Gerente

DT0498

page 19 DT0493