Kobold RFS Operating Instructions Manual

2.  Note .............................................................................................................. 3 3.  Instrument Inspection .................................................................................... 3 4.  Regulation Use .............................................................................................. 3 5.  Operating Principle ........................................................................................ 4 6.  Use in Hazardous Areas ............................................................................... 4 7.  Mechanical Connection ................................................................................. 5 8.  Electrical Connection .................................................................................... 6 9.  Technical Information .................................................................................... 8 10. Order Codes ................................................................................................. 9 11. Dimensions ................................................................................................. 10 12. EU Declaration of Conformance .................................................................. 11 13. ATEX-Certificate ......................................................................................... 12 Manufactured and sold by: Kobold Messring GmbH Nordring 22-24 D-65719 Hofheim Tel.: +49(0)6192-2990 Fax: +49(0)6192-23398 E-Mail: [email protected] Internet: www.kobold.com

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:  Level Switch model: RFS  Operating Instructions 4. Regulation Use Model RFS devices are used for when monitoring liquid levels. The device should only be used with liquids that are compatible with the unit’s materials of construction. Level control is often accomplished with at least two level switches - one acting to sense the minimum level and the other for maximum level detection. Any use of the Level Switch, model: RFS, which exceeds the manufacturer’s specification, may invalidate its warranty. Therefore, any resulting damage is not the responsibility of the manufacturer. The user assumes all risk for such usage.

The Level Switch RFS is designed for economical control of liquids in vessels. The following three versions are available: A device with plug connection and two devices with aluminium housing connection of which one is an ATEX-version for the use in environment with gas explosion hazards. The switch is remarkable for its maintenance-free design and small dimensions. The switch is mounted on the side of the vessel. A hinged stainless steel float with a magnet floats up and down through the liquid level. In the end position a potential-free reed contact is operated by the magnet. The switching function (N/O contact / N/C contact) is determined by the mounting position. The switching function is reserved by simply rotating the switch through 180°. 6. Use in Hazardous Areas With the approval the Level Switch, model RFS, can be used within hazardous areas. Thereby the aluminium housing is applicable outside the process in zone of category 2D. The float is appropriate for the use within the process in zone of category 2D and 1D. The approvals are as follows: II 1 GD Ex ia IIC T6 Ga -20≤Ta≤+60 °C An additional intrinsically safe relay is required in environment with gas explosion hazards (KFA…and respectively KFD). For a correct and professional potential equalization, the ground terminal on the housing of the RFS must be connected in applications in hazardous areas.

The Level Switch should be mounted so that the float can move freely over its entire path without hitting the walls, floor or roof of the container. Avoid fitting the switch where agitators or inlet valves could expose it to excessive turbulence. Make sure that the medium does not contain solids or ferrite particles, as they could collect on the float magnet and interfere with the switching operation. If the liquid does contain sediment or suspended matter, you must be sure they do not come into contact with the float system. Mount the switch in a way that it is easily accessible for installation and maintenance.  Make sure that the allowed max. operational pressure and service temperature for the device is not exceeded.  The installation position must be horizontal.  If possible, examine all the connection joints for proper sealing, just after mechanical installation.  The engraved arrow on the hexagon must point up or down depending on the desired contact function. In any case the marked hexagon surface must always be mounted vertically. Mounting position Depending on the mounting position of the device, the contact function (N/O or N/C contact) of the level switch will be defined. Mounted as N/O contact Mounted as N/C

Caution! Make sure that the voltage values of your system correspond with the voltage values of the level switch.  Make sure that the supply wires are de-energised.  Connect your connection cable to the terminal of the aluminium housing or the plug of the RFS level switch.  The level switch has a protective insulation; a separate protection wiring for the standard version is not necessary.  For the RFS version for ATEX applications, the connection of the potential terminal is mandatory.  An additional intrinsically safe relay is required in environment with gas explosion hazards (KFA…and respectively KFD). Pin assignment for RFS Level Switch RFS-1200N4 and RFS-1201N4 There are only two connection terminals which can be connected by choice and which do not have any influence on the contact function (N/C / N/O). The contact function is defined by the mounting position of the instrument.

ground terminal. The two other terminals are connected in the same way as the standard devices RFS-1200N4 and RFS-1201N4 respectively. After the connection of any other from your designated external instruments to the limit contact, the device is ready for operation.

Medium temperature: - 40...+120 °C Ambient temperature: -20...+80 °C (RFS-1200 N4 and RFS-1201 N4) -20...+ 60 °C (RFS-12Ex N4) Operating pressure: max. 5 bar mounting position: horizontal Materials • Housing / plug: plastic with RFS-1200 N4 aluminium with RFS-1201 N4 and RFS-12Ex N4 • Float: stainless steel 1.4301 • Connection: stainless steel 1.4301 Process connection: 1/2 NPT Electr. connection: for RFS-1200 N4: DIN plug for RFS-1201 and RFS-12Ex: terminals in the aluminium connection Contacts: N/O or N/C contact, depending on the mounting position of the device Switching voltage: max. 240 VAC / 300 VDC with RFS-1200 and RFS-1201 max. 40 VDC with RFS-12Ex Switching current: max. 0.5 A Switching capacity: max. 15 VA with RFS-1200 and RFS-1201 max. 4 VA with RFS-12Ex Medium density: >0.7 g/cm3 Contact resistance: max. 150 kΩ Protection: IP65 ATEX marking for RFS-12Ex: II 1 GD Exia IIC T6 Ga -20°C ≤ Ta ≤ +60 °C

Example: RFS-1200 N4 Model Description RFS-1200 N4 Standard version with plug connection RFS-1201 N4 Standard version with housing connection (aluminium) RFS-12Ex N4* ATEX version for use in environments with explosion hazards *an additional relay is required for the use in environment with gas explosion hazards

47 19.5 8.5 17.5 1/2 NPT 2 8 17 50 65 M16 RFS-1200 N4 47 19.5 8.5 17.5 1/2 NPT 2 8 17

DECLARACIÓN DE CONFORMIDAD EU EU DECLARATION OF CONFORMITY EU-KONFORMITÄTSERKLÄRUNG DÉCLARATION DE CONFORMITÉ 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 RFS-12Ex N4 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) 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 -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 : LOM 0163 Número notificación : LOM 05ATEX9070 Notified organism Notification number Zertifizierungsstelle Zertifikatsnummer Organization annoncée Nombre notification Organismo informato Notifica di numero Badalona april. 2016 DT0497 Gerente