Elster EK280 Operating Manual
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Elster EK280 Operating Manual

Elster EK280 Operating Manual

Volume conversion device
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Summary of Contents for Elster EK280

  • Page 1 Operating manual Volume conversion device EK280...
  • Page 2 Volume conversion device EK280 Operating manual: 73021209 Version: Issue date: 25.10.13 Software-Version: 2.20 or later...

  • Page 3: Table Of Contents

    3 Technical data ..................19 3.1 General data ..................19 3.2 Power supply for EK280 without integrated power supply unit ..19 3.2.1 Battery power supply for the basic device ........... 19 3.2.2 Battery power supply for the integrated modem ........19 3.2.3 External power supply for the basic device .........
  • Page 4 5.2.6 Connect outputs of the EK280 ............39 5.2.7 Earthing the EK280 housing ............... 40 5.2.8 Earthing the cable connections of the EK280 ........40 5.2.9 Additional measures for installation in zone 2 ........41 5.3 Putting into operation ............... 41 5.3.1 Configuration of measurement parameters .........
  • Page 5 General 5.3.4 Verifying assembly and connection ............. 52 6 Operation ....................53 6.1 Safety ....................53 6.1.1 Personal protective equipment ............53 6.2 Operating personnel ................ 53 6.2.1 Instructed personnel ................53 6.2.2 Qualified personnel ................53 6.2.3 Calibration officers................54 6.3 Basic principles ................
  • Page 6 General 9 Appendix ....................82 9.1 List of spare parts and accessories ..........82 9.1.1 Fastening elements ................82 9.1.2 Pressure connections................82 9.1.3 Temperature sensor pockets .............. 83 9.1.4 Small parts and miscellaneous ............83 9.1.5 Documentation ..................83 9.2 EC Declaration of Conformity ............

  • Page 7: General

    The data and material properties indicated serve as reference val- ues. These must be verified on a case-by-case basis and adjusted as necessary. The EK280 Application Manual is available for you at www.elster- instromet.com/en/EK280.html (-> Documents) for the commission- ing of the various communication and device applications.

  • Page 8: Electronic Hotline

    In the event of faults, you can also contact the electronic hotline. Tel. +49 (0) 6134 / 605-123 http://www.elster-instromet.com/en/support_electronics.html E-mail: support@elster.com 1.4 Meaning of symbols 1.4.1 Safety information In this manual, safety information is denoted by the use of symbols. The safety in- formation is introduced by signal words which identify the level of risk.

  • Page 9: Tips And Recommendations

    General 1.4.2 Tips and recommendations … provides useful tips and recommendations as well as infor- mation for ensuring efficient and smooth operations. 1.5 Limitationof liability All of the information contained in this manual has been compiled under considera- tion of valid standards and regulations, the latest technological developments, and our many years of experience and expertise.

  • Page 10: Scope Of Delivery

    The free "enSuite" program also belongs to the accessories for the EK280 and is available under www.elster-instromet.com. This can be used to program the EK280 volume conversion device via its data interfaces to perform advanced applications.

  • Page 11: Storage

    General 1.9 Storage CAUTION! Exceeding or falling below the valid temperature range for the batteries may impair performance. If the valid temperature range of the batteries during storage of the device is exceeded or fallen below, the performance of the batter- ies may be impaired.

  • Page 12: Safety

    – If category "II 3 G" has been marked on the ATEX label, the EK280 should not be used in zone 1, but only in zone 2. – The ATEX label is located on the top panel of the EK280 hous- ing.
  • Page 13 Operating the EK280 in zone 1 and connecting devices which are not certified as "associated equipment" present a risk of explosion. Therefore: – When using the EK280 in zone 1, it should only be connected to certified associated equipment as per the ATEX Product Di- rective 94/9/EC.

  • Page 14: Intended Use

    This device is solely designed and constructed for the intended use described be- low. The volume conversion device EK280 is used to convert the gas volume read from a gas pipe under measurement conditions, into base conditions, as well as to allo- cate the measured quantities to tariffs.

  • Page 15: Personal Protective Equipment

    Safety Gas specialists who, on the basis of their specialist training, knowledge and experience, as well as their awareness of the relevant standards and regulations, are in a position to perform works on gas-handling equipment and to independently identify possi- ble risks.

  • Page 16: Specific Risks

    Safety 2.5 Specific risks The residual risks arising from the risk assessment will be listed below. Please ob- serve the safety and warning information specified in the following chapters to re- duce risks to health and to prevent dangerous situations from arising. WARNING! Misuse of batteries may present a risk of injury.

  • Page 17: Environmental Protection

    Safety 2.6 Environmental protection CAUTION! Environmentally hazardous substances! If environmentally hazardous substances are handled incorrectly this may cause significant damage to the environment, particularly if they are improperly dis- posed of. Therefore: – The instructions below should be observed at all times. –...

  • Page 18: Operator's Responsibility

    Safety 2.7 Operator's responsibility The device will be used in the commercial sector. The operator of the device will therefore be subject to legal obligations concerning occupational safety. In addition to the safety information contained in these instructions, the valid safety, accident prevention, and environmental protection regulations for the area of appli- cation of the device, must be adhered to.

  • Page 19: Technical Data

    Permissible ambient temperature range -25 ... +55 °C Permissible gas temperature range -30 ... +60 °C 3.2 Power supply for EK280 without integrated power supply unit 3.2.1 Battery power supply for the basic device Data Value Unit Voltage General nominal capacity 16.5...

  • Page 20: External Power Supply For The Basic Device

    Supply voltage 7.5 …8.5 Supply current, maximum 3.3 Power supply for EK280 with integrated power supply unit 3.3.1 Battery power supply for the basic device Batteries for switching to battery mode in the event of a power failure: see chapter 3.3.1 "Battery power supply for the basic device"...

  • Page 21: Pressure Sensor Type 17002

    16 ... 80 bar abs. 105 bar abs. The pressure sensor is available as both an external and internal model. Further details can be found under www.elster-instromet.com or chapter "Assembly, Connection and Putting into Operation". 3.4.1.2 Relative pressure ranges Measuring range Overload capacity …...

  • Page 22: Temperature Sensor

    Technical data The pressure sensor is available as both an external and internal model. Further details can be found under www.elster- instromet.com or chapter "Assembly, Connection and Putting into Operation". 3.5 Temperature sensor Data Value Unit Measuring range -30 … +60 °C...

  • Page 23: Hf Pulse Inputs (High Frequency)

    Technical data 3.6.2 HF pulse inputs (high frequency) High frequency pulse transducers can only be connected to inputs 1 and 2 (termi- nals DE1 and DE2) (see chapter 5.2.1.3). Data Value Unit Open-circuit voltage 7.5 ... 8.5 "High" switching level max.

  • Page 24: Hf Pulse Outputs

    Technical data 3.7.3 HF pulse outputs The use of outputs as high frequency output is only possible if an external power supply has been connected (see chapter 5.2). Only outputs 2 and 3 (terminals DA2 and DA3) can be used as high frequency out- put.

  • Page 25: Labeling

    (MID). The label is placed on the front panel of the device (see Construction and Function chapter). 3.10.1 Type label of the volume corrector The type label of the EK280 relating to its function as a volume corrector, contains the following information: 1 Type designation EK280...

  • Page 26: Atex Marking

    Technical data 3.10.2 ATEX marking The plate for the "Ex" marking of the EK280 is located on the top panel of the de- vice housing. 3.10.2.1 Zone 1 (without integrated power supply unit) ELSTER GmbH II 1 G 55252 Mainz- Kastel...

  • Page 27: Construction And Function

    Construction and Function 4 Construction and Function 4.1 External view 1 Display 2 Cable bushings for the connec- tion of additional components 3 Optical interface Identification label 4 Escape button "ESC" 5 Enter button "ENTER" 6 Function key , ⊳ 7 Arrow keys 8 Pressure sensor Instromet...

  • Page 28: Short Description

    Construction and Function 4.3 Short description The volume conversion device EK280 is an explosion-protected electronic device that takes the volume of gas determined by an external meter at measurement con- ditions to calculate the volume at base conditions and therefore the energy portion of the respective gas volume.

  • Page 29: Assembly, Connection And Putting Into Operation

    – Do not open when an explosive atmosphere may be present! – Electrostatic hazard: Do not rub! The EK280 can either be mounted on a gas meter, on a pipeline, or on a wall. Should problems arise during assembly, e.g. with regard to the selec- tion of suitable assembly tools, please contact our customer service team (see "General"...

  • Page 30: Assembly On A Gas Meter

    Assembly, Connection and Putting into Operation 5.1.1 Assembly on a gas meter Mount the EK280 on a gas meter using a mounting bracket (see Ap- pendix) as well as the corresponding cylinder screws and square nuts. 1. Using two M5 x 10 mm (Fig. 6: cylinder screws, attach the mounting bracket (Fig.

  • Page 31: Assembly On A Wall

    Select wall plugs which corre- spond to the size of the screws and insert these in the boreholes in the wall. To fasten the EK280, four M5 x 40 mm wood screws should be used for wall as- sembly. Fig. 8 5.1.4 Three-way valve...

  • Page 32: Connection

    The connection of non intrinsically-safe or non-associated equipment presents a risk of explosion! The operation of the EK280 in zones 1 and 2 and the connection of non intrinsically-safe equipment which exceeds those conditions and limit values specified in the declaration of conformity, presents a risk of explosion.

  • Page 33: Connecting The Gas Meter

    5.2.1 Connecting the gas meter In order to measure the gas volume, a gas meter with a low or high frequency pulse transducer or encoder can be connected to the digital input "DE1" of the EK280. The pulse transducer or encoder of the gas meter will be connected to the "DE1"...
  • Page 34 - not when in battery mode. In order to ensure an uninterrupted measurement of the gas volume, the EK280 can be configured in such a way that the device automatically switches to a low fre- quency pulse transducer in the event of a failure of the external power supply;...

  • Page 35: Sealing The Input Terminals

    Assembly, Connection and Putting into Operation 5.2.2 Sealing the input terminals After connecting to the gas meter as per chapter 5.2.1, the input terminal "DE1" must be sealed for official calibration measurements. For this purpose, terminal covers are provided in the bag of accessories. If required, these should be screwed over the connected terminals and an adhesive seal should then be bonded to the fastening screw (see chapter 5.3.2).

  • Page 36: Connecting The Pressure Pipe

    Assembly, Connection and Putting into Operation 5.2.3.2 Connection to an older temperature sensor pocket Insert the temperature sensor Pt500 into the temperature sensor pocket (see Appendix). Use the adapter to seal the connec- tion (see Appendix). Fasten the temperature sensor using the capstan screw and the screw connections...

  • Page 37: Connecting The Power Supply

    Operating the EK280 in zone 1 and connecting devices which are not certified as "associated equipment" present a risk of explosion. Therefore: – When using the EK280 in zone 1, it should only be connected to certified associated equipment as per the ATEX Product Di- rective 94/9/EC.
  • Page 38 Assembly, Connection and Putting into Operation 5.2.5.2 Power supply for the EK280 with integrated power supply unit DANGER! Danger to life from electrical current! Touching live parts poses an imminent danger to life. Therefore: – Works on the electrical components of the device, i.e. the con- nection of the power supply unit, should solely be carried out by qualified electricians.

  • Page 39: Connect Outputs Of The Ek280

    Assembly, Connection and Putting into Operation 5.2.6 Connect outputs of the EK280 The cable core diameter for the connection to the EK280 outputs is 0.33 … 2.5 mm Different downstream devices can be connected to the digital out- puts of the EK280. The outputs are preconfigured for this purpose (see chapter 5.3.1.13).

  • Page 40: Earthing The Ek280 Housing

    Use the cable to connect the screw on the left-hand side of the housing with the equipotential bonding strip. 5.2.8 Earthing the cable connections of the EK280 All cables firmly connected to the EK280 have a shield. This is connected to the cable glands of the EK280 in order to prevent electromagnetic interference.

  • Page 41: Additional Measures For Installation In Zone 2

    8 mm M16, plastic: 8 mm The ATEX category "II 1 G" models of the EK280 (without in-built power supply unit) should be installed in both zones 1 and 2 without these additional measures. 5.3 Putting into operation 5.3.1 Configuration of measurement parameters If the EK280 is subject to calibration regulations, the works described below should only be performed by legally authorized individuals.
  • Page 42 Assembly, Connection and Putting into Operation 5.3.1.1 Opening the calibration lock The calibration lock is located at the back of the housing cover in the form of a but- ton, and this can be secured by means of an adhesive label. This button must be pressed in order to adjust the values and parameters protected by configuration regulations.
  • Page 43 If an encoder is connected as per 5.2.1.2, the encoder mode is activated as follows: Start the "Auto Detect" function using the keyboard of the EK280 as follows: Move the cursor to the "Serv." register and to the value "Md.I1" (input mode) via the following path: Serv.
  • Page 44 Assembly, Connection and Putting into Operation 5.3.1.4 Adjusting the parameters for the high frequency pulse transducer of the gas meter If a high frequency pulse transducer is connected as per 5.2.1.3, the input mode and the cp value should be adjusted as follows: 1.
  • Page 45 In order to control the recording of the volume at measurement conditions, the EK280 meter can be set once to the same value as the gas meter if the administra- tor lock is open. It is always possible to set the volume if the calibration lock is open: Open the administrator lock or the calibration lock Move the cursor to the „Serv.“...
  • Page 46 5.3.1.8 Setting the volume at base conditions For the EK280 volume conversion device, there is the option available when com- missioning the device to set the volume at base conditions meter once if the admin- istrator lock is open. It is always possible to set the volume if the calibration lock is...
  • Page 47 Assembly, Connection and Putting into Operation 5.3.1.9 Deleting change information for comparison of Vb with the gas meter In order to allow the volume at base conditions to be reset if the administrator lock is open, the change information for comparison of „Vb“ must be deleted: Open the calibration lock Move the cursor to the „Serv.
  • Page 48 Assembly, Connection and Putting into Operation 5.3.1.11 Adjust alarm limits for gas pressure and temperature measurement Alarm limits are set to default values ex-factory. If a change becomes necessary, please proceed as follows: Move the cursor to the "Serv." register and move to the alarm limit values via the following paths: Serv.
  • Page 49 Aside from the settings described here, a range of other functions can be configured for the outputs, e.g. high frequency or time- synchronous pulses. A complete description can be found in the EK280 Application Manual that can be downloaded under www.elster-instromet.com. 5.3.1.14 Setting the daylight saving time Move the cursor to the "Serv."...
  • Page 50 All measurement archives (no logs) will be deleted. In order to ensure that the archive is not accidentally deleted, the serial number of the EK280 must be entered whilst the calibration lock is open (the number is located on EK280 identification plate).

  • Page 51: Sealing

    Assembly, Connection and Putting into Operation 5.3.2 Sealing 5.3.2.1 External view Possible sealing point to se- cure the identification plate via adhesive seal. EK280 Year: 2011 Optional user lock: Seal co- Serialno.: 1234567 M 11 0102 vers using wire seals through...

  • Page 52: Closing The Housing

    Fig. 22 5.3.4 Verifying assembly and connection WARNING! Risk as a result of incorrect assembly and connection Incorrect assembly and connection of the EK280 may lead to life- threatening situations. Therefore: – Assemble and connect the EK280 correctly. – Sealing should solely be carried out by a calibration officer.

  • Page 53: Operation

    EK280, and to perform changes which are not subject to calibra- tion regulations.

  • Page 54: Calibration Officers

    EK280, and to perform changes which are not subject to calibra- tion regulations. 6.3 Basic principles As already explained in the "Construction and Function"...

  • Page 55: Display

    Operation 6.3.1 Display The display is divided into the five registers "Main", "Cust.", "Admin", "Serv." and "Ctrl." under which measurements, settings and other data are displayed. Fig. 24 Display layout Device status Battery charge status Frozen display Active register External power supply Inactive register Reception strength of the external Cursor...

  • Page 56: Button Functions

    Operation 6.3.2 Button functions The pressure and arrow buttons have the following functions: Button Function Jump right to another data list. Jump to the second part of a two-part value. Jump down through a data list. ⊳ Jump left to another data list. Jump up through a data list.

  • Page 57: Data Recall, Display Navigation

    Operation 6.3.3 Data recall, display navigation ⊳ Using the arrow keys , you can move the cursor around the display and switch to the other values. By pressing the ESC button one or more times, you will be directed to the "Main", "Cust.", "Admin", "Serv."...

  • Page 58: Meaning Of Status Symbols

    Operation 6.3.4 Meaning of status symbols The status symbols displayed in the first line have the following meaning: Fig. 26: Status symbols in the display Symbol Meaning In the upper left-hand side of the screen, individual letters are dis- played as symbols for the following signals: No special message.

  • Page 59: Error Messages When Entering Values

    External power supply If this symbol appears, the EK280 is being supplied power from an ex- ternal unit connected to the terminals. Signal strength of the radio network for the external modem (connected to the terminals).

  • Page 60: Access Rights

    As this address has not yet been entered, no value will be displayed. The value can only be changed when the calibration lock is open as the PTB log is full. 6.3.6 Access rights The following parties can access the EK280. Access Meaning Calibration officer...
  • Page 61 This includes all values which influence volume readings or the volume conversion. The calibration lock is designed as a button which is positioned inside the EK280 housing underneath the circuit board cover. It can be protected with an adhesive la- bel (see chapter 5.3.1.1, "Opening the calibration lock").

  • Page 62: Data Register Content

    Operation 6.3.6.3 Administrator and customer locks Administrator and customer locks are used to protect data which is not subject to calibration regulations, but which should also not be modified without authorization. These locks can be opened by entering a code (i.e. the "key") under “Cod.A” or “Cod.C”...
  • Page 63 The calculated compressibility ratio factor is used to calculate the volume at base conditions. The EK280 supports several equations to calculate the compressibility ratio factor. The corresponding equation is determined by the applicable guidelines and stand- ards for the area of application of the device. This can be adjusted at the ordering or commissioning phase ( chapter 5.3.1 "Configuration of measurement parame-...

  • Page 64: Cust." Register (Customer)

    Operation 6.4.3 "Cust." register (Customer) This register is used to display and check special device settings and conditions. This application is provided for gas customers. This register can be freely programed by the user via the enSuite configuration software. The following parameters are programed in-house: Display Meaning Unit...
  • Page 65 Operation 6.4.3.4 VbMP↑ ↑ ↑ ↑ – Maximum measurement period counter Vb in the current month The maximum time stamp is displayed in the following line after moving the cursor to the value "VbMP↑". The maximum values from the past 15 months can be requested in the monthly ar- chive 1 (see chapter 6.4.4 "Admin"...

  • Page 66: Admin" Register (Administrator)

    Operation 6.4.4 "Admin" register (Administrator) This register is used to display and check special device settings and conditions. This application is provided for metering point operator. Display Meaning User values Sub-menu for user-specific parameters Volume Sub-menu for volume and the corresponding parameters Volume con- Sub-menu for volume conversion and the corresponding parameters version...

  • Page 67: Serv." Register (Service)

    Operation 6.4.5 "Serv." register (service) This register is used to display, check and configure special device settings and conditions. This application is only intended for service technicians (specialists) or a calibration officer for putting the device into operation or maintenance. Display Meaning Volume...
  • Page 68 (see chapter 6.3.4 "Meaning of status symbols") 6.4.6.4 Menu - Selection of the display menu In an as-delivered condition, the display of the EK280 has the following five regis- ters: "Main", "Cust.”, "Admin", "Serv." and "Ctrl.". Registers can be displayed and...
  • Page 69 Operation 6.4.6.5 Main – Content of the "Main" register The content of the "Main" display register can be adjusted here. The default setting is "volume+meas.”. This corresponds to the content displayed in chapter 6.3.1. Display Meaning volume+meas. - The following are displayed: Volume at base conditions, vol- ume at measurement conditions, pressure, temperature, compressibility ratio factor and conversion factor - Format: 8 pre-decimal and 3 post-decimal places for counters...

  • Page 70: Maintenance

    Maintenance 7 Maintenance 7.1 Safety DANGER! Danger to life from electrical current! Touching live parts poses an imminent danger to life. Damage to the insulation or individual components may be life-threatening. Therefore: – Safely protect electrical connections and live components against possible human contact.

  • Page 71: Personnel

    Maintenance CAUTION! Environmentally hazardous substances! If environmentally hazardous substances are handled incorrectly this may cause significant damage to the environment, particularly if they are improperly disposed of. Therefore: – The instructions below should be observed at all times. – Appropriate measures should be taken immediately if environ- mentally hazardous substances are accidentally released into the environment.

  • Page 72: Testing And Changing Device Batteries

    In an as-delivered condition, two batteries are connected to the base board of the EK280. To double the service life of the batteries, two additional batteries can be connected. You should always connect at least two batteries (to X10 and X13 or X11 and X14) to the EK280.
  • Page 73 Fig. 29 and repeat step 11 if necessary. Please ensure that the new batteries are connected correctly and are in a fixed position inside the EK280. CAUTION! Material damage may arise through improper closing of the device! Improper closing of the device may lead to material damage as a result of cable connections being squashed.

  • Page 74: Entering The Battery Capacity

    Maintenance 7.2.2 Entering the battery capacity The battery capacity must be re-entered after changing a battery. When using the device with high communication security („High Level Security“, see application manual), the battery capacity can only be entered with the enSuite software! For opening the administrator lock move the cursor to the "Admin"...

  • Page 75: Display Remaining Battery Power

    Maintenance 7.2.3 Display remaining battery power The remaining battery power is calculated separately from the consumed power (which is measured) and from the anticipated fu- ture consumption (giving the theoretical remaining battery power). Therefore, for applications which are very power-consuming, the remaining battery power may drop quicker than is shown on the battery power display.

  • Page 76: Faults

    (see chapter General) or our Electronic Hotline: Tel. +49 (0) 6134 / 605-123 http://www.elster-instromet.com/en/support_electronics.html E-mail: support@elster-instromet.com 8.1 Safety DANGER! Danger to life from electrical current! Touching live parts poses an imminent danger to life. Damage to the insulation or individual components may be life-threatening.

  • Page 77: Personal Protective Equipment

    Faults 8.1.2 Personal protective equipment When eliminating faults on the device, the necessary personal protective equipment for the work must be worn inside the respective plant. The notices relating to personal protective equipment mounted in the working area must be followed at all times. 8.1.3 Improper elimination of faults WARNING! Risk of injury through improper elimination of faults!

  • Page 78: Fault And Other Status Messages

    Faults 8.2 Fault and other status messages Faults (synonymously used here for "alarms") during the operation of the EK280, can be identified by means of status symbols in the first line of the display (see chapter 6.3.4). You can obtain further information and messages under the current status "Stat"...
  • Page 79 Please contact the Elster support (see chapter 1.3 "Customer service"). b) Warnings: The batteries of the EK280 are intermittently dropping out. As a Data restore result of this, the time has not changed and no measurement and volume conversion have happened. However, all data is available.
  • Page 80 Before the software update, an error was detected in the cached software image. Softw. error This message is used for factory diagnosis. Please contact the Elster support (see chapter 1.3 "Customer service"). The programing of the device has generated an unusable com- Sett. error bination of settings.
  • Page 81 If this message appears for more than several minutes, the func- tion "Automatically set time via RDT" is activated. However, if this does not work, please contact the Elster support (see chap- ter 1.3 "Customer service"). Cal.lock o.

  • Page 82: Appendix

    Appendix Message Meaning, action Bat. operat. The EK280 is in battery mode. This signal is primarily used to inform a remote data transmis- sion system that the batteries run down more quickly during long periods of data transmission. Dayl.Sav.Tim The time displayed in volume corrector is daylight saving time.

  • Page 83: Temperature Sensor Pockets

    700 mm long Device: Battery module 13 Ah 73 015 774 16 Ah battery module for the modem of the EK280 without inte- 73 021 211 grated power supply unit 13 Ah battery module for connection to the integrated power sup-...

  • Page 84: Ec Declaration Of Conformity

    Appendix 9.2 EC Declaration of Conformity...

  • Page 85: Atex Type Examination Certificate

    Appendix 9.3 ATEX Type Examination Certificate 9.3.1 Zone 1...
  • Page 86 Appendix...
  • Page 87 Appendix...
  • Page 88 Appendix...
  • Page 89 Appendix...

  • Page 90: Zone 2

    Appendix 9.3.2 Zone 2...
  • Page 91 Appendix...

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