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Summary of Contents for Kobold SMN
- Page 1 Operating Instructions All Metal Flow Switch Model: SMN...
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Page 2: Table Of Contents
Declaration of the Manufacturer ........10 EU Declaration of Conformance ........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: info.de@kobold.com Internet: www.kobold.com Seite 2 SMN K02/0416... -
Page 3: Note
SMN Operating Instructions 4. Regulation Use Model SMN instruments monitor liquid flows. Only clean and homogeneous liquids of low viscosity - against which the instrument materials are resistant - should be monitored. Large switch-point inaccuracies can occur with highly viscous media. -
Page 4: Operating Principle
5. Operating Principle The KOBOLD model SMN flow switch is used when extremely low flow switch points are required in combination with minimum pressure loss at high flow rates. The flow switch operates on the well-known float principle. An orifice float with an integrated circular magnet moves within a cylindrical flow tube in the direction of the flow and against a spring. -
Page 5: Electrical Contacts
Use Teflon tape or something similar to seal the threaded connections. The instruments should not be installed in an induction field. If possible, check after mechanical installation that the threaded joint/pipe connection is tight and leakproof. SMN K02/0416 Seite 5... -
Page 6: Electrical Connection
The instrument can now be put into operation. 8.2. Example for Contact Protective Measures For capacitive and inductive loads (long conductors and relay/protection) we recommend the following protective schemes. Seite 6 SMN K02/0416... -
Page 7: Commissioning
The instrument needs no maintenance when the measured medium is not polluted. Lime and other deposits should be removed regularly from the inside parts of the instruments. The instrument cannot be taken apart and must be cleaned with a suitable cleanser. SMN K02/0416 Seite 7... -
Page 8: Technical Information
11. Technical Information Housing: SMN-11..: brass, Ms 58 SMN-12..: stainless steel, 1.4301 Float: SMN-11..: brass, Ms 58 SMN-12..: stainless steel, 1.4301 Cage: SMN-11..: brass, Ms 58 SMN-12..: stainless steel, 1.4301 Spring: stainless steel Magnets: Ceramic Max. temperature: 100 °C Max. pressure: SMN-11..: 250 bar... -
Page 9: Order Codes
12. Order Codes Order Details (Example: SMN-1150H R0 R 25) Brass Stainless steel Function Type of contact Connection version version ..R0.. = 1 N/O contact Max Flow: ..U0.. = 1 changeover 100 l/min contact ...R25 = G1 Fix Switch female ..C0.. -
Page 10: Pressure Loss Diagram
15. Declaration of the Manufacturer Declaration for equipment without a potential igniting source according to the explosion protection guideline 94/9/EC (ATEX 95). We, KOBOLD Messring GmbH, herewith declare that the following units and/or assembly groups: All Metal Flow Switch of the model SMN... - Page 11 Add-on control contacts can under application of EN 60079-14 article 12.2.1 being used as simple electrical equipment without other marking in intrinsically safe equipment. Hofheim, 16. Jan. 2007 H. Peters M. Wenzel General Manager Proxy Holder SMN K02/0416 Seite 11...
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Page 12: Eu Declaration Of Conformance
16. EU Declaration of Conformance We, KOBOLD-Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: All Metal Flow Switch model: SMN-... to which this declaration relates is in conformity with the standards noted below: EN 61010-1:2011 Safety requirements for electrical equipment for measurement, control and...
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