Kobold KDF-2 Series Operating Instructions Manual

Kobold KDF-2 Series Operating Instructions Manual

Flow meter / monitor for very low flows

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Operating Instructions
for
Flow Meter / Monitor
for very Low Flows
Model: KDF-2../KDG-2...

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Summary of Contents for Kobold KDF-2 Series

  • Page 1 Operating Instructions Flow Meter / Monitor for very Low Flows Model: KDF-2../KDG-2...
  • Page 2: Table Of Contents

    12. Pressure losses ................... 10 13. Order Codes ....................10 14. Recommended Spare Parts ................ 11 15. Dimensions ....................12 16. Declaration of Conformance ............... 13 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 3: Note

    KDF/KDG 2. Note Please read these operating instructions before unpacking and putting 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 &...
  • Page 4: Regulation Use

    KDF-2/KDG-2 4. Regulation Use The model KDF serve to measure and monitor liquid flow, models KDG serve to measure and monitor gas flow. Only clean, low viscosity and homogeneous liquids, which are compatible with the materials of construction, should be measured. Dirt particles may block the float and thus cause erroneous signals and measurements.
  • Page 5: Installation

    KDF/KDG 6. Installation Installation in the Pipeline • The rotameter flow meter must be installed vertically (float measuring system). Direction of flow from bottom to top. • Clean the pipeline to the device, before connecting, by blowing out or rinsing. •...
  • Page 6: Limit Switches

    KDF-2/KDG-2 8. Limit Switches To signal particular flow rates the low volume flow meters can be fitted with limit switches that initiate an electrical signal when the set value is reached. The float in the flow meter must be made of stainless steel. One signal transmitter is required for each limit value.
  • Page 7: Electrical Connection

    KDF/KDG Adjusting the limit switch type N7R**A • The limit switch is adjusted for the desired flow rate by moving it. The limit switch (2) is fixed to the back track (3) of the measuring instrument with the two retaining screws (1). •...
  • Page 8: Maintenance

    KDF-2/KDG-2 Wiring diagram for 2 limit transducers Hazardous area Inductive contacts Typ: N7R**A BVS 08 ATEX E026, IECEx BVS 09.0016, II 1G Ga Ex ia IIC T6, II 1D Ex iaD 20 T125°C Typ: RC 10/15-14 NO/N3 PTB 99 ATEX 2128 X II 2G Ex ia IIC T6 When using two switch contacts the distance between both contacts must be minimum 16 mm.
  • Page 9: Technical Information

    KDF/KDG 11. Technical Information Installation position: vertical, flow from bottom Accuracy: ± 2,5 % q 50 (acc. VDI/VDE 3513, Bl.2) ± 3 % v. ME (inlet pressure regulator) ± 5 % v. ME (outlet pressure regulator) (10-100% of range) Max. pressure: PN 16 Medium temperature: -20 °C…+100 °C...
  • Page 10: Pressure Losses

    KDF-2/KDG-2 12. Pressure losses Range Order Valve seat Pressure Range Order Valve seat Pressure water (mm) drop air** (mm) drop (mbar) (mbar) 0,25 –2,5 KDF-2217... 0,5 – 5 KDF-2207... 0,5 – 5 KDF-2220... 0,8 - 8 KDF-2209... 1,2 – 12 KDF-2225...
  • Page 11: Recommended Spare Parts

    KDF/KDG Gases. Order Details (Example: KDG-2207 NV 0 M10) Measuring Order no. Connection*** Gasket Panel Contact option Miscella-neous range air** stainless steel option installatio options n kit N = ¼ NPT V = FPM 0= without 00 = without Contact 0= without 0,5 –...
  • Page 12: Dimensions

    KDF-2/KDG-2 15. Dimensions Standard with needle valve with panel installation with contact and connection box with differential pressure regulator page 12 KDF-2/KDG-2 K02/0112...
  • Page 13: Declaration Of Conformance

    KDF/KDG 16. Declaration of Conformance We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Flow Meter/ Monitor for very Low Flows Model: KDF-2... / KDG-2... with Limit Switches Model: RC-10…, RC-15… to which this declaration relates is in conformity with the standards noted below:...

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Kdg-2 series

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