Kobold ZOK-E1 Supplementary Operating Instructions
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Kobold ZOK-E1 Supplementary Operating Instructions

Flow rate controller/ dosing unit/flow counter
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Supplementary Operating Instructions
for
Flow rate Controller/
Dosing Unit/Flow Counter
Model: ZOK-E1/E2/E3/E5

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Summary of Contents for Kobold ZOK-E1

  • Page 1 Supplementary Operating Instructions Flow rate Controller/ Dosing Unit/Flow Counter Model: ZOK-E1/E2/E3/E5...

  • Page 2: Table Of Contents

    EU Declaration of Conformance ..............30     ATEX Certificate ..................31     IECEx Certificate ..................39     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 ZOK-Ex K08/0322...

  • Page 3: General

    2. General These instructions must be read in addition to the ZOK-Zx Instruction Manual (or to the manual of the KOBOLD flowmeter, where the “ZOK-ExM” instrument is mounted), if you have purchased an ATEX/IECEx intrinsically safe certified ZOK- Ex series instrument and intend installing it in a hazardous environment for which it is approved.

  • Page 4: Overview

    In addition, when externally powered the certified ZOK-Ex series (not ZOK-E1) provides one or more outputs (depending on model and configuration). Further options are: ...

  • Page 5: Electrical Installation

    No electrical outputs, only unpowered sensors can be used (e.g. reed switch or certified induction coils). This power option can only be used with ZOK-E1 and ZOK-E3). b. External supply (operated by an intrinsically safe power supply). In combination with an external supply, only passive 2-wire sensors (e.g.
  • Page 6 ZOK-Ex Hazardous area Intrinsically safe battery ext Batt Service Simple Apparatus or intrinsically safe certified 2-wire Power supply passive sensor Out2 Out1 PulseOut StatOut Safe area b. Self-excited two-wire sensor (induction coil) Non-amplified Pick off coils from turbine meters are examples of this type of input. Pick-off coils must be I.S.
  • Page 7 (see c.) Electrical outputs (only ZOK-E2/E3/E5): The ZOK-Ex electronics (except ZOK-E1) are certified to provide different output signals (analog, switching or pulse signal). In order to be able to use the outputs, they must be operated with a separately constructed intrinsically safe circuit.
  • Page 8 ZOK-Ex 1. 2-wire 4-20 mA current loop (ZOK-E3): The ZOK-Ex electronics can be supplied by a two-wire 4-20 mA loop if the input sensor does not require a power supply from the ZOK-Ex device (reed switch or certified induction coil sensor). Connection examples with certified safety barrier can be found in section 12 page 8...
  • Page 9 ZOK-Ex 2. 3-wire 4-20 mA output (ZOK-E3): The ZOK-Ex device can also be operated in a three-wire 4-20 mA configuration. Detailed connection examples with certified safety barrier can be found in section 12 3. Dosing function / pulse or flow alarm (ZOK-E2 / E5): In the case of ZOK-E2 / E5 devices, the electronic assembly is equipped with an additional optocoupler board.
  • Page 10 ZOK-Ex For ZOK-E5 with pulse output Intrinsically safe Hazardous area battery ext Batt Service intrinsically safe Power supply Switching output 2 Isolated switching Load amplifier Switching output 1 e.g. Pepperl & Fuchs KFD2-SR2-Ex1.W KFD2-SOT3-Ex1 Safe area For ZOK-E2 with dosing function Or for ZOK-E5 with 2 independent alarm outputs Detailed connection examples with certified safety barrier can be found in section 12...
  • Page 11 ZOK-Ex Note: All 3 outputs (4-20 mA, pulse and switching outputs) can be used at the same time if a separate intrinsically safe circuit is set up for each output signal with the aid of suitable certified safety barrier. In addition to the wiring requirements of the ZOK-Ex operating instructions, the appropriate local rules, regulations and guidelines for wiring practices for intrinsically safe installations must be followed.

  • Page 12: Programming

    The only replaceable item within the instrument is the EX battery pack and can be replaced as a complete unit. Only the certified intrinsically safe battery assembly ERS-BATEX036 may be used. This spare part can be ordered from the Kobold sales offices.

  • Page 13: Label And Ordering Code

    ZOK-Ex 10. Label and ordering code Code Type Function Output Identifying label ZOK-E1M counter none 2 optocoupler ZOK-E2M dosing unit version for outputs retrofitting 4-20 mA 2/3- for DON ZOK-E3M wire controller instrument pulse and ZOK-E5M switching output stand-alone ZOK-E1K none counter stand-alone...

  • Page 14: Replacement Atex Battery

    ZOK-Ex 11. Replacement ATEX Battery I.S. battery assembly KOBOLD Article No. ERS-BATEX036 Warning: KOBOLD Intrinsically safe battery assembly P/No. ERS-BATEX036 only approved for ZOK-Ex instruments mounted in a hazardous area. Label on ATEX Battery Note: It is highly recommended to follow the instructions mentioned on the ATEX Battery label.
  • Page 15 ZOK-Ex Mounting the ATEX Battery In case if the ATEX Battery is ordered separately, following steps need to be taken to connect it: 1. The ATEX Battery should be plugged into the connector “ext Batt” on ZOK-Ex electronics and placed between the battery terminals as shown below: ext Batt Service Out2...
  • Page 16 ZOK-Ex ext Batt Service Out2 Out1 PulseOut StatOut 2. Once this is ensured, the spacing between the rings should be pushed into the narrow side of the ring eye. Hence locking the tie. ext Batt Service Out2 Out1 PulseOut StatOut How to untie: In order to release the cable tie, the latter is pushed out again from the slot of the ring eye and can then be withdrawn from the ring eye again and opened.

  • Page 17: Wiring Examples (Control Drawings)

    ZOK-Ex 12. Wiring examples (control drawings) 12.1 Usage in Zone 1, Group IIB ZOK-Ex K08/0322 page 17...
  • Page 18 ZOK-Ex page 18 ZOK-Ex K08/0322...
  • Page 19 ZOK-Ex ZOK-Ex K08/0322 page 19...
  • Page 20 ZOK-Ex page 20 ZOK-Ex K08/0322...
  • Page 21 ZOK-Ex ZOK-Ex K08/0322 page 21...
  • Page 22 ZOK-Ex page 22 ZOK-Ex K08/0322...

  • Page 23: Usage In Zone 1, Group Iib/Iic

    ZOK-Ex 12.2 Usage in Zone 1, Group IIB/IIC ZOK-Ex K08/0322 page 23...

  • Page 24: Usage In Zone 1, Group Iic

    ZOK-Ex 12.3 Usage in Zone 1, Group IIC page 24 ZOK-Ex K08/0322...
  • Page 25 ZOK-Ex ZOK-Ex K08/0322 page 25...
  • Page 26 ZOK-Ex page 26 ZOK-Ex K08/0322...
  • Page 27 ZOK-Ex ZOK-Ex K08/0322 page 27...
  • Page 28 ZOK-Ex page 28 ZOK-Ex K08/0322...
  • Page 29 ZOK-Ex ZOK-Ex K08/0322 page 29...

  • Page 30: Eu Declaration Of Conformance

    ZOK-Ex 13. EU Declaration of Conformance We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Flow Rate Totaliser/Controller Model: ZOK-E1/E2/E3/E5 To which this declaration relates is in conformity with the standards noted below: EN 60079-0:2018...

  • Page 31: Atex Certificate

    ZOK-Ex 14. ATEX Certificate ZOK-Ex K08/0322 page 31...
  • Page 32 ZOK-Ex page 32 ZOK-Ex K08/0322...
  • Page 33 ZOK-Ex ZOK-Ex K08/0322 page 33...
  • Page 34 ZOK-Ex page 34 ZOK-Ex K08/0322...
  • Page 35 ZOK-Ex ZOK-Ex K08/0322 page 35...
  • Page 36 ZOK-Ex page 36 ZOK-Ex K08/0322...
  • Page 37 ZOK-Ex ZOK-Ex K08/0322 page 37...
  • Page 38 ZOK-Ex page 38 ZOK-Ex K08/0322...

  • Page 39: Iecex Certificate

    ZOK-Ex 15. IECEx Certificate ZOK-Ex K08/0322 page 39...
  • Page 40 ZOK-Ex page 40 ZOK-Ex K08/0322...
  • Page 41 ZOK-Ex ZOK-Ex K08/0322 page 41...
  • Page 42 ZOK-Ex page 42 ZOK-Ex K08/0322...

This manual is also suitable for:

Zok-e2Zok-e3Zok-e5

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