Kobold NE-5048 Operating Instructions Manual

Electrode relays for conductive limit switches

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Operating Instructions
for
Electrode Relays for
Conductive Limit Switches
Model: NE-5048
(without WHG-certification)

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Summary of Contents for Kobold NE-5048

  • Page 1 Operating Instructions Electrode Relays for Conductive Limit Switches Model: NE-5048 (without WHG-certification)
  • Page 2: Table Of Contents

    Operating Principle ..................4     Mechanical Connection ................. 5     Electrical Connection ..................5     7.1. Electrode relay NE-5048 ..............5     7.2. Process Applications NE-5048 ............7     Locating and Remedying Faults ..............9    ...
  • Page 3: Note

    Please read these operating instructions before unpacking and putting the unit into operation. Follow the instructions precisely as described herein. 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: Operating Principle

    The probes can be single-rod or multi-rod probes (see also NES and NEH). The NE-5048 relay provides a limit value signal for connecting one control and one earth electrode. It also includes a bistable interval relay with latching and is thus suitable for interval switching - e.g.
  • Page 5: Mechanical Connection

    7.1. Electrode relay NE-5048 The NE-5048 electrode relay is the standard relay for all conductive limit electrodes. The relay is supplied in closed-circuit current version. The function can be adapted to your application according to the following explanations.
  • Page 6 To avoid unwanted switching of the output contacts due to an unstable surface of the liquid or wave movements in the tank, you can set a delay in the output of 0.5-10 s. Power supply connection The mains voltage is connected to terminals A1 and A2 page 6 NE-5048 K02/0422...
  • Page 7: Process Applications Ne-5048

    NE-5048 7.2. Process Applications NE-5048 1 Level Monitoring 2 Level Monitoring NE Switch A1, A2: Power supply C: Reference electrode H: MAX maximal level electrode D: MIN minimal level electrode NE-5048 K02/0422 page 7...
  • Page 8 NE-5048 Filling function Emptying function page 8 NE-5048 K02/0422...
  • Page 9: Locating And Remedying Faults

    9. Maintenance The conductive limit switch requires absolutely no maintenance. The electrode tips should be occasionally inspected for deposits or corrosion, and should be cleaned. Insulating deposits can cause a malfunction. NE-5048 K02/0422 page 9...
  • Page 10: Technical Information

    LED red Monitoring state LED green Operating voltage 11. Order Codes Example: NE-504 8 Model Description Number of outputs Power supply 504 = 1 limit signal or Elektrode relay 8 = 24 - 240 V AC/DC 1 Min./Max. controller page 10 NE-5048 K02/0422...
  • Page 11: Dimensions

    NE-5048 12. Dimensions [mm] NE-5048 K02/0422 page 11...
  • Page 12: Eu Declaration Of Conformance

    NE-5048 13. EU Declaration of Conformance We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Electrode Relays for Conductive Limit Switches Model: NE-4048 to which this declaration relates is in conformity with the standards noted below:...

This manual is also suitable for:

Ne-104Ne-304Ne-4048

Table of Contents