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Related Manuals for Kobold DWU 5 Series
Summary of Contents for Kobold DWU 5 Series
- Page 1 Operating Instructions Paddle Bellows Flow Monitor Model: DWU / DWN...
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Page 2: Table Of Contents
Dimensions ....................13 Disposal ...................... 14 EC Declaration of Conformance ..............15 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 Page 2 DWU/ DWN K05/0822... -
Page 3: Note
Please read these operating instructions carefully before commissioning the unit for operation, and follow the instructions precisely as described. The instruction manuals on our website www.kobold.com are always for currently manufactured version of our products. Due to technical changes, the instruction manuals available online may not always correspond to the product version you have purchased. -
Page 4: Regulated Use
DWU/DWN 4. Regulated Use Model DWU and DWN instruments are used for monitoring and measuring liquid flows. Only those liquids, that are compatible with the materials of construction, may be measured or monitored. Large measuring errors will result if used with high viscosity media. -
Page 5: Operating Principle
DWU / DWN 5. Operating Principle The flow meter/monitor works on the principle of dynamic pressure. The flow medium pushes against a pressure plate (1), which causes the system to swing against a tensioned spring (2). A metal bellows (3) seals the indicator and switch assembly from the flowing liquid. -
Page 6: Mechanical Connection
DWU/DWN 6. Mechanical Connection Before installation Make sure that the actual flow matches the switching range of the device (please see name plate). Be sure that the operating pressure corresponds to the reference pressure specified when placing order. ... -
Page 7: Mounting Methods
DWU / DWN Mounting methods The instruments can be supplied with the following connection designs: Threaded pipe connection (DWU-1, DWN-1) The pipe is connected directly to the flow monitor. Use only PTFE sealing tape to seal the screw fitting. (do not use hemp). Flange mounting (DWU-2, DWN-2) With flange mounting a flat gasket should be used between the instrument and the customer’s flange. -
Page 8: Electrical Connection
DWU/DWN 7. Electrical Connection Before proceeding, be sure that the electrical supply lines are de-energized. Standard contact Removing the enclosure to gain access to the four polar connector block. Additionally to the micro-switch a control lamp is installed. This lamp is for optical control of switch status of the micro-switch. -
Page 9: Maintenance
DWU / DWN 9. Maintenance Flow indicators and -monitors are virtually maintenance-free. In case of malfunction, check the pipe system for calcification or other obstruction. To do this, all instruments have to be removed completely from the pipe system; except type DWU, (up to a T-piece diameter of 1") which can be separated from the pipe by removing the four screws on the special flange, and turning the instrument by 90 °... -
Page 10: Technical Information
DWU/DWN 11. Technical Information Flow ratio: threaded connection: max. 1 : 5 mounting flange: max.1 : 4 Repeat accuracy: up to 20 l/min.: ±5 % 21- 200 l/min.: ±4 % 201 and more l/min.: ±3 % (based on calibration position and medium at 20 °C) Pressure loss: 0.1 - 0.3 bar... -
Page 11: Order Codes
DWU / DWN 12. Order Codes Flow monitor model DWU-1… with male thread connection Flow range Material combination Connection Pilot Direction of flow Location of Option (L/min) (bellows/T-piece) male thread lamp indicator min. max. st. steel/ st. steel/ st. steel/ water water brass... - Page 12 DWU/DWN Flow monitor model DWN-1... with male thread connection Flow range Material combination Connection Pilot Direction of flow Location of Option (L/min) (bellows / T-piece) male thread lamp indicator min. max. st. steel/ st. steel/ st. steel/ water water brass st.
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Page 13: Dimensions
DWU / DWN 13. Dimensions with thread connection H (mm) L (mm) 145 + 1 135 + 1 ½ 145 + 1 135 + 1 ¾ 145 + 1 135 + 1 145 + 1 135 + 1 1 ¼ 150 + 2 170 + 2 1 ½... -
Page 14: Disposal
DWU/DWN 14. Disposal Note! Avoid environmental damage caused by media-contaminated parts Dispose of the device and packaging in an environmentally friendly manner Comply with applicable national and international disposal regulations and environmental regulations. Batteries Batteries containing pollutants are marked with a sign consisting of a crossed-out garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that is decisive for the classification as containing pollutants: 1. -
Page 15: Ec Declaration Of Conformance
DWU / DWN 15. EC Declaration of Conformance We, Kobold-Messring GmbH, Hofheim-Ts., Germany, declare under our sole responsibility that the product: Paddle Bellows Flow Monitor model DWU / DWN -... to which this declaration relates is in conformity with the standards noted below:...
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