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RMG ENCO08 Operating Instructions Manual

Transmitter unit for meter reading
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Transmitter unit for meter reading ENCO08 u. ENCO08-M
Reliable Measurement of Gas
Status:
2018, September 10th
Version:
05
OPERATING INSTRUCTIONS

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Summary of Contents for RMG ENCO08

  • Page 1 Transmitter unit for meter reading ENCO08 u. ENCO08-M OPERATING INSTRUCTIONS Reliable Measurement of Gas Status: 2018, September 10th Version:...
  • Page 2 Original Document The ENCO08M_manual_05_en from 2018, September 10th for the transmitter unit ENCO08 u. ENCO08-M is the document translated first from the German original version. Anyhow, this document may serve as reference for translations into other languages. Please use in case of any uncertainties the German version as main reference.

  • Page 3: Table Of Contents

    Contents Contents Introduction ............1 Structure of the manual ................. 1 Objective of the manual ................. 1 Abbreviations ....................2 1.2.1 Symbols ....................... 2 1.2.2 Layout of instructions ................2 1.2.3 Using the encoder ..................3 1.2.4 Risk assessment and mitigation ............7 1.2.5 Validity of the manual ................
  • Page 4 Contents Putting into operation ................28 ENCO 08 ..................... 28 3.5.1 ENCO 08-M ....................28 3.5.2 Connecting the gas flow ................. 30 3.5.3 Appendix ..............31 Appendix A: connection example ............... 31 Appendix B: certificates / standards ............32 Manual ENCO 08-M · EN05 · 2018, September 10th...

  • Page 5: Introduction

    1 Introduction Introduction Structure of the manual The introduction to this manual consists of three main parts. In the first part of the introduction, general guidelines are listed; here the symbols used and the structure of notes are presented, but also a risk assessment is given. It also contains specifications for the transport and storage of the ENCO 08 encoder.

  • Page 6: Abbreviations

    1 Introduction 1.2.1 Abbreviations The following abbreviations are used: circa, approximately max. maximum min. minimum Measurement Instruments Directive 1.2.2 Symbols The following symbols are used: 1, 2, … Marks steps within a work operation 1.2.3 Layout of instructions The following instructions are used: Danger This warning instruction informs you of potentially hazardous situations that can occur as a result of incorrect operation or human error.

  • Page 7: Using The Encoder

    1 Introduction Notice This warning instruction informs you of potentially hazardous situations that can occur as a result of incorrect operation or human error. If these situations are not avoided, they can result in material damage to the device or the vicinity. This notice may also give to you tips on how to simplify your work.
  • Page 8 1.2.4.2 Hazards during commissioning Initial start up Initial start-up must only be carried out by especially trained personal (training by RMG) or by service personal from RMG. Notice In accordance with §15 BetrSichV "Betriebssicherheitsverordnung (industrial safety ordiance)", §5 DGUV Requirement 3 "Elektrische Anlagen und Betriebsmittel (electrical systems and equipment)"...
  • Page 9 1 Introduction Danger This symbol in the manual warns you of the danger of explosion; follow the instructions next to the symbol. Particular attention must be paid to the risk of explosion: • Install the device TRZ03 in accordance with operating instructions. If the TRZ03 is not installed according to the manual, there is possibly an insufficient explosion protection.
  • Page 10 • In general, it is recommended that an ENCO 08 encoder should only be installed, connected or replaced by RMG Service. • All the above points also apply to repair and maintenance work and generally when connecting or disconnecting the ENCO 08 encoder is required.

  • Page 11: Risk Assessment And Mitigation

    • Recognize dangers that could be caused by the used flow medium. • Training / education by RMG for working with gas measuring instruments. • Education / instruction in all country-specific standards and directives to be observed for work that is to be carried out on the device.

  • Page 12: Validity Of The Manual

    1.2.6 Validity of the manual This manual describes the transmitter unit ENCO08 u. ENCO08-M. This encoder is only a part of a complete on-site system. Observe also the instructions of other components of the site system. If you find contradicting instructions, please contact RMG.
  • Page 13 1 Introduction Caution Make sure that the electrical data of the power connection correspond to the specifications on the type plate. Care of any other applicable national regulations in the country of use. Use cables suitable for the cable glands (see chapter 3 Connection and commissioning) 1.2.6.1 Hazards during Operation...

  • Page 14: Transportation

    • Avoid shocks and vibrations • Protect ENCO 08 from humidity • In case of suspicion of improper transport or damage during transport, please contact RMG service immediately. 1.2.8 Delivery Supplied number of parts may differ depending on the optional customer order.

  • Page 15: Dispose Of Packaging Material

    Avoid long periods of storage. Check the Encoder ENCO 08 after any storage for damage and functionality. Ask for a check from the RMG service after a storage period for the device of over one year. In this case please send back the device to RMG.

  • Page 16: Junction Boxes With Enhanced Safety

    1 Introduction Danger Risk of destruction by body electricity, e.g. due to friction of clothing - appropriate protective clothing must be worn. Notice During installation, it must be ensured that the enclosure protection class is observed. Direct sunlight must be avoided. The encoder housing complies with protection class IP20 due to EN 60529 and is installed in a totalizer housing (e.g.

  • Page 17: Inspection And Maintenance Work

    (section 1.2.4.4 Qualification of personnel). If repairs are carried out by RMG service, no acceptance by an expert is required. Manual ENCO 08-M · EN05 · 2018, September 10th...

  • Page 18: Encoder Enco 08 And Enco 08-M

    NAMUR interface (EZD protocol). ENCO 08 is parameterized by means of an operating software (e.g. "Set meter reading"). This is done by RMG Messtechnik upon delivery, so the customer does not have to carry out any further parameter adjustments on site during commissioning (exception: ENCO 08-M).

  • Page 19: Operation

    2 Encoder ENCO 08 and ENCO 08-M Operation Remark: Usually the totalizer housing is significantly smaller than the turbine gas meter (turbine) magnetic coupling MZ mechanical counter encoder ENCO 08, transmitter unit for meter reading connection for data transmission flow computer volume counter (original counter reading) volume at measurement conditions volume at standard conditions...

  • Page 20: Function

    2 Encoder ENCO 08 and ENCO 08-M Function The ENCO 08 is coupled to the totalizer via a gear wheel. When the mechanical counter rotates, the rotation is transferred to the encoder shaft in the ENCO 08. Voltage pulses are induced in the Wiegand sensor module under the impact of the now rotating magnetic field.

  • Page 21: 2.4 Variants

    2 Encoder ENCO 08 and ENCO 08-M 2.4 Variants 2.4.1 ENCO 08 Integrated in the totalizer head type F (for TRZ 03, TRZ 03-K) Integrated in the totalizer head type G (for TRZ 04, TRZ 04-K and DKZ 02) Encoder ENCO 08 Manual ENCO 08-M ·...

  • Page 22: Enco 08-M

    EN12261. Coupling connection Coupling for output shaft This version requires on-site parameterization, unless the ENCO08-M is already mounted and sealed in a totalizer head with mechanical output. The ENCO 08-M is parameterized with its specific data (such as meter reading, number of decimals and direction of rotation) by means of a PC operating program to the meter type to which it is attached.
  • Page 23 1.12 1.11: Standard for ENCO08 / ENCO08-M for 8-digit counters 1.12: ENCO08-M with special output ratio and 9-digit counters 1.12: ENCO08-M with special output ratio and 8- and 9-digit counters Note Important The output values must be specified when ordering. If these values are not available, the ENCO08-M is set to the default values: •...

  • Page 24: 2.5 Use In Custody Transfer Applications

    This chapter contains information on how you can upgrade the ENCO08-M for custody transfer and ensure its use here. For this purpose, seals are attached at various points of the ENCO08-M and the housing is sealed to prevent opening. Caution The ENCO08-M is approved for custody transfer.

  • Page 25: Sealing Plan

    2 Encoder ENCO 08 and ENCO 08-M 2.5.1 Sealing plan 2.5.1.1 Type plate Notice The modification of parameters or the software (of the internal firmware) is only possible after a seal break and by using a PC and a programming module.
  • Page 26 The digital, custody transfer of the Vo to a transmitter device is in accordance to DIN 19234 respectively NAMUR. This is unidirectional and interaction-free. Notice The cable between the ENCO08-M and the transmitter device must be sealed. Manual ENCO 08-M · EN05 · 2018, September 10th...
  • Page 27 2 Encoder ENCO 08 and ENCO 08-M 2.5.1.3 Coupling for the output shaft Notice The mechanical output of the ENCO08-M must be sealed, too. Manual ENCO 08-M · EN05 · 2018, September 10th...

  • Page 28: Connection And Commissioning

    3 Connection and commissioning Connection and commissioning 3.1 General When selecting the cable, make sure that the permitted maximal values are taken into account according to the EC type examination certificate. The electrical Ex network must be realized with its own cable. Only a shielded cable may be used for the installation of the encoder;...

  • Page 29: 3.2 Electrical Data

    3 Connection and commissioning 3.2 Electrical Data Label: Type: ENCO 08 Voltage U 13,5 V Current I 15 mA Power P 51 mW neglectable neglectable The device complies with the following regulations and standards: ➢ ATEX guideline: 2014/34/EU ➢ EN 60079-0 ➢...

  • Page 30: Electrical Connections

    3 Connection and commissioning Electrical connections ENCO 08 Contact Vo + Vo - The connection of the digital signal Vo is realized via the sockets 1 and 3. Manual ENCO 08-M · EN05 · 2018, September 10th...

  • Page 31: Data Protocol

    3 Connection and commissioning Data protocol The electronically recorded totalizer reading is transmitted in a data protocol "Digital interface for primary devices with meter reading transmission" in specified time intervals. A two-wire interface according to EN 60947-5-6 (NAMUR threshold level specification) serves as the hardware layer for power supply during the data transmission.

  • Page 32: Putting Into Operation

    (such as meter reading, decimal digits and direction of rotation) by means of the user software. This separate manual "ENCO 08 - Programming Manual" can be found in the help menu of the "ENCO08 PC Software". Here you will also find a short manual for this "ENCO08 PC Software".
  • Page 33 The ENCO 08 programming module and the PC-ENCO user program (software) are required for parameter setting. This separate quick guide can be found in the help menu of the "ENCO08 PC Software". When putting into operation on site, the connection (see connection examples) between ENCO 08-M and the connected readout device must still be established after the programming has been completed.

  • Page 34: Connecting The Gas Flow

    3.5.3 Connecting the gas flow Please observe the operating instructions of the gas meter! The following applies to RMG turbine meters: Caution Do not operate any downstream pipelines or system components through the turbine meter. Turbine rotation can occur that may lead to excessive stress or overload and cause damage.

  • Page 35: Appendix

    Appendix Appendix Appendix A: connection example Connection scheme to the flow computer ERZ 2000(-NG; -Di, ..) When using the internal Ex separating stage, terminals X9 are assigned on the ERZ: When used without internal Ex separating stage, terminals X4 are assigned on the ERZ: Manual ENCO 08-M ·...

  • Page 36: Appendix B: Certificates / Standards

    Appendix Appendix B: certificates / standards ENCO 08 (-M) has the following approvals, which are listed below: - Type examination certificate Metrologic approval − Certificate of Conformity according OIML R137-1 (2012), EN12261: + A1, EN12480 + A1 (NMI: CoC-15200211-01) Ex-approval −...
  • Page 37 Appendix Manual ENCO 08-M · EN05 · 2018, September 10th...
  • Page 38 Subject to technical modification For further information please visit our website: www.rmg.com or contact your local sales support office to learn more about the RMG products. RMG Messtechnik GmbH Otto-Hahn-Straße 5 35510 Butzbach, Deutschland Tel: +49 (0) 6033 897 – 0 Fax: +49 (0) 6033 897 –...

This manual is also suitable for:

Enco08-m

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