Elster EK260 Operating Manual And Installation Instructions
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Elster EK260 Operating Manual And Installation Instructions

Elster EK260 Operating Manual And Installation Instructions

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Volume Conversion Device EK260
Operating Manual and Installation Instructions
Operating Manual:
Issued:
EK260
73016960
13.03.08 (p)
SW Version:
from V2.52
Edition:

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Summary of Contents for Elster EK260

  • Page 1 EK260 Volume Conversion Device EK260 Operating Manual and Installation Instructions Operating Manual: 73016960 SW Version: from V2.52 Issued: 13.03.08 (p) Edition:...
  • Page 2 You can obtain further support from the branch or representative responsible for your area. You will find the address in the Internet or simply enquire at Elster GmbH. Passing this manual to third parties and its duplication, in full or in part, are only allowed with written permission from Elster GmbH.

  • Page 3: Table Of Contents

    Volume Conversion Device EK260 Contents Safety instructions.......................5 Items supplied and accessories .................6 Brief description ......................7 Operation ........................9 Front panel .......................9 Display ........................10 2.2.1 Line 1 = Labels......................10 2.2.2 Line 2 = Value with name and unit ................12 Keypad ........................13...
  • Page 4 FE260 Function Expansion without modem ............... 95 4.7.5 FE230 Function Expansion with modem ..............95 4.7.6 Printer on the EK260 or on an FE260................. 96 4.7.7 Other device with RS232 interface (e.g. PC) .............. 96 4.7.8 Modbus protocol........

  • Page 5: I Safety Instructions

    Make sure that the limits quoted in the certificate of conformance (see Appendix A-2) for the devices to be connected are not exceeded. The housing of the EK260 must be earthed directly to a potential equalisation strip. A terminal screw is provided for this on the left housing wall.

  • Page 6: Items Supplied And Accessories

    Volume Conversion Device EK260 Items supplied and accessories Items supplied: The items supplied with the EK260 include: a) EK260 Volume Conversion Device b) Dispatch list c) Configuration data sheet d) Operating Manual e) 3 blind insertion seals for gland-type cable entries f) Lead sleeves for sealing the pressure connection.

  • Page 7: Brief Description

    Volume Conversion Device EK260 1 Brief description The EK260 Volume Conversion Device is used for the conversion of the gas vo lume measured at line conditions by a gas meter into the base conditions and into the appropriate energy. The pressure and temperature are measured for the dete rmination of the line conditions.
  • Page 8 Volume Conversion Device EK260 Data interface: • Optical interface according to IEC 62056-21 (replaces IEC 61107 and EN61107). • Permanently wired serial interface (RS232 or RS485). • MODBUS protocol via the permanently wired serial interface. • Automatic setting of the clock by remote data transmission with a modem connected.

  • Page 9: Operation

    Volume Conversion Device EK260 2 Operation 2.1 Front panel The following are positioned on the front panel for operation: • Two-line alphanumeric display with 16 characters per line. • Six keys for the display and entry of values. EK260 Prefix Arc.

  • Page 10: Display

    Volume Conversion Device EK260 2.2 Display Basic display structure (with an example): Prefix Archive Device status M e n u à m a x á A W B Submenu V b A 1 2 3 4 5 6 7 . 8 Both lines in the display are subdivided into fields which are described b elow.
  • Page 11 Volume Conversion Device EK260 3. Device status Here a maximum of three of the most important items of status information are continually shown. A flashing character signifies that the relevant state is still present and the relevant message is present in the momentary status.

  • Page 12: Line 2 = Value With Name And Unit

    Volume Conversion Device EK260 5. Submenu → Arrow to the right indicates that the displayed value is the entry point of a submenu. This can be called with the key [ENTER]. ← Arrow to the left indicates that you are located in a submenu which can be quit with the key [ESC].

  • Page 13: Keypad

    Volume Conversion Device EK260 2.3 Keypad Key(s) Designation Effect • Downwards movement within the list: Down cursor ↓ From the first value in the list movement is in the direction of the last value or from the last value directly to the first one.

  • Page 14: Changing Values

    "data classes" (abbreviation: "DC"). Values in the same data class are treated identically during entry. A prerequisite for an entry is that the lock assigned to the value is open. The following data classes (DC) are present in the EK260: Type Entry, change using <ENTER>...

  • Page 15: Entering Sources

    The value to be displayed can be defined by the user by entering the address. No value is displayed because this has not yet occurred. * With an EK260 with a software version below 2.10, this error is displayed with code "8". Elster GmbH...

  • Page 16: Access Rights

    The calibration lock is used for securing parameters subject to calibration regulations. This includes all values which affect the volume counting. The calibration lock is implemented as a pushbutton located within the EK260 housing below the circuit board cover panel. It can be secured with an adhesive seal ( → 5.8.1) The parameters protected under calibration regulations are each identified with "C"...

  • Page 17: Calibration Logbook

    1:174 ... 4:174 after which it automatically closes. 2.5 Formation of the list structure The data display in the EK260 is structured in a tabular form. The individual columns in the table each contain associated values. Values identified with U and Arc are submenus or archives which you can view by entering <ENTER>...
  • Page 18 Volume Conversion Device EK260 Volume at base Actual volume Pressure Temperature conditions Std.V. Act.V. Press. Temp. To "Conv." "User" ↔ Vm ↔ p ↔ T ↔ Vb ↔ Vol. at base cond. Actual volume Pressure Temperature ↔ Qm p.LW T.LW Flow at base cond.
  • Page 19 Volume Conversion Device EK260 Conversion Archive Status + Logbook System "Temp." Conv. Archiv Status System "Serv." ↔ C ↔ ArMo1 Arc ↔ SReg ↔ Time ↔ Conversion factor Month archive 1 Status register Date and time ArMo2 Stat MdTim Gas law dev. factor...
  • Page 20 Volume Conversion Device EK260 Service Inputs Outputs Serv. Inputs Outp. "System" "Ser.IO." ↔ Bat.R ↔ Vo ↔ Md.O1 ↔ Remaining bat. life Orig. counter Input 1 Mode for Output 1 Bat.C cp.I1 SC.O1 Battery capacity Cp value Input 1 Source Output 1 St.SL...
  • Page 21 Volume Conversion Device EK260 Interfaces Energy User list User Ser.IO Energ. "Std.V." "Outp." ↔ Md.S2 ↔ W ↔ VbT ↔ Mode, Interface 2 Energy Vb total DF.S2 Data format, Interface 2 Power Vm total Bd.S2 Baud rate, Interface 2 Disturbance quantity...

  • Page 22: Functional Description

    Volume Conversion Device EK260 3 Functional description The data display is structured in tabular form (list structure) ( → 2.5). The individual columns in the table each contain associated values. The following functional description is orientated to this list structure.

  • Page 23: Standard Volume (Volume At Base Conditions) List

    Volume Conversion Device EK260 3.1 Standard Volume (Volume at base conditions) list Designation / value Unit Access Address DC Volume at base conditions 2:300 Flow at base conditions m3/h 2:310 Vb disturbed 2:301 Vb total 2:302 Vb adjustable 2:303 SC.Qb...
  • Page 24 Volume Conversion Device EK260 SC.Qb Source for Warning Qb QbUW Upper warning limit Qb QbLW Lower warning limit Qb Using these three values, the flow at base conditions can be monitored in various ways. When the value to be monitored exceeds the upper limit QbUW or falls below the lower limit QbLW, the message "Vb Warn Lim."...

  • Page 25: Actual Volume (Volume At Measurement Conditions) List

    Volume Conversion Device EK260 3.2 Actual volume (volume at measurement conditions) list Designation / value Unit Access Address DC Actual volume 4:300 Actual flow rate m3/h 4:310 Vm disturbed 4:301 Vm total 4:302 Vm adjustable 4:303 SC.Q Source for Warning Q...
  • Page 26 Volume Conversion Device EK260 Vm disturbed Here the actual volume is summed while ever an alarm is present, i.e. a message with the number "1" or "2" is located in any momentary status ( → 3.7). The entry of VmD is not possible in the encoder mode (Md.I1 = 5). An attempt to make an entry leads to entry error "11"...
  • Page 27 Volume Conversion Device EK260 VmMP ∆ Measurement period counter Vm VmMP ∆ is restarted with "0" at the beginning of each measurement period (→ 3.6) and indicates the progress of VmT (see above). The measurement period MPer can be set in the archive list (→ 3.6).

  • Page 28: Pressure List

    Volume Conversion Device EK260 3.3 Pressure list Designation / value Unit Access Address DC Pressure 7:310_1 p.LW Lower warning limit pressure 10:150 p.UW Upper warning limit pressure 10:158 pMin Lower alarm limit pressure 7:3A8_1 pMax Upper alarm limit pressure 7:3A0_1 MRL.p...
  • Page 29 = Eq1p + Eq2p ž Bin.p + Eq3p ž Bin.p To adjust the pressure measurement circuit, the three coefficients of the quadratic equation can either be found by the EK260 itself after entry of Prog (see below) or calculated and entered by the user.
  • Page 30 Volume Conversion Device EK260 The EK260 itself assumes a linear characteristic and after the entry of Prog (see below) only determines the coefficients Eq1p and Eq2p. The third coefficient Eq3p remains unchanged. The standard value for Eq3p is "0". p1Adj Adjustment value 1 for pressure...

  • Page 31: Temperature List

    Volume Conversion Device EK260 3.4 Temperature list Designation / value Unit Access Address DC Temperature °C 6:310_1 T.LW Lower warning limit temperature °C 9:150 T.UW Upper warning limit temperature °C 9:158 TMin Lower alarm limit temperature °C 6:3A8_1 TMax Upper alarm limit temperature °C...
  • Page 32 T.Mes = Eq1T + Eq2T ž Bin.T + Eq3T ž Bin.T To adjust the temperature measurement circuit, the three coefficients of the quadratic equation can either be found by the EK260 itself after entry of Prog (see below) or calculated and entered by the user.
  • Page 33 Volume Conversion Device EK260 The EK260 itself assumes a linear characteristic and after the entry of Prog (see below) only determines the coefficients Eq1T and Eq2T. The third coefficient Eq3p remains unchanged. The standard value for Eq3T is 6.411ž10 T1Adj Adjustment value 1 for temperature...

  • Page 34: Volume Corrector List

    Volume Conversion Device EK260 3.5 Volume corrector list Which values are displayed in this list depends on the set K-value and the computation mode Md.K (see below): a) Computation according to S-Gerg-88 (Md.K = 1) Designation / value Unit Access Address DC...
  • Page 35 Volume Conversion Device EK260 d) Computation according to AGA-8 Gross Characterisation Method 2 (Md.K = 4) Designation / value Unit Access Address DC Conversion factor 5:310 Inverted compressibility factor ratio 8:310 Carbon dioxide content 11:314 Stickstoff-Anteil 14:314 Density ratio 15:314...
  • Page 36 Volume Conversion Device EK260 Inverted compressibility factor ratio (K-value) The inverted compressibility factor ratio is used for computing the conversion factor (see above). It is calculated according to the following formula: where Z = compressibility factor and Z = compressibility factor at reference conditions.

  • Page 37: Archive List

    Volume Conversion Device EK260 Md.K K-value mode With Md.K you can set whether the conversion factor C (→ 3.5) and hence the volume at base conditions Vb (→ 3.1) are determined with the calculated K-value or with the constant K-value, K.F: Md.K = "0": The fixed value (substitute value) K.F is used.
  • Page 38 Volume Conversion Device EK260 ArMo2 Monthly archive 2 Entry point for the second monthly archive in which maxima, minima and some mean values for Qb, Qm, p, T from the last 15 months are saved. The day boundary (= month boundary ) "06:00 hrs." can be changed via the serial interfaces under the address "2:141".
  • Page 39 Volume Conversion Device EK260 The totalizer increments in comparison to the corresponding previous entry are identified with a "∆". They are only shown in the display and are not read out over the interface. Normally, the flow (consumption) within a measurement period is involved here.

  • Page 40: Device Numbers And Channel Numbers For Winview And Winlis

    Volume Conversion Device EK260 3.6.1 Device numbers and channel numbers for WinView and WinLIS The contents of the archives described here are suitable for processing with the WinLIS and WinVIEW evaluation programs. The data is allocated there to so -called "device numbers"...

  • Page 41: Status List

    SReg Status register, total Stat Momentary register, total The EK260 supplies two types of status information: Momentary status (also known as "status") and the status register. Messages in the momentary status point to current statuses such as for example, errors that are present. When the condition is no longer present, the corresponding message in the momentary status disappears.
  • Page 42 Volume Conversion Device EK260 Clear status register This enables you to clear all the status register contents, i.e. "SReg" and its complete submenu: After calling by ENTER, an "0" is positioned right-justified in the display. The function is triggered, i.e. all status registers are cleared, after switching to "1"...
  • Page 43 Volume Conversion Device EK260 ↔ ↔ ABNo Time Block Storage time Addr. of Old value New value "Check" number changed value ↔ ↔ St.SL St.CL Check St.PL St.ML Calibration Manufacturer's Supplier's lock Customer's Checksum "ABNo" lock lock lock ClrPL Clear calibration logbook The calibration logbook PlogB can be cleared by entering "1"...

  • Page 44: List Of Status Messages

    Volume Conversion Device EK260 3.7.1 List of status messages Message in status Description StSy SRSy Restart Restart of the device St.5 SR.5 C-fact. err. Conversion factor cannot be computed St.6 SR.6 T Alarm Lim. Alarm limits for temperature violated St.7 SR.7...
  • Page 45 Volume Conversion Device EK260 Restart Restart of the device Message 1 in StSy The device was started without usable data. Counter readings and archives are empty, the clock has not been set. C-fact. err. Conversion factor cannot be computed Message 1 in St.5 The conversion factor C (→...
  • Page 46 With a connected encoder (Md.I1 = 5, → 3.10) no actual volume could be measured for more than 20 seconds (→ 4.5). Possible causes are, for example, a cable breakage or low batteries in the EK260. In this case the substitute values p.F (→ 3.3) and T.F (→ 3.4) are used for volume conversion and disturbance quantities are counted for Vb and Vm (→...
  • Page 47 (→ 3.3). Soft. error Software error Message 7 in StSy This message is used for diagnosis at the factory. If it occurs during operation, contact Elster GmbH or your local representative. Sett. error Setting error Message 8 in StSy On account of the programming that has been carried out, an unusable combination of settings arose, e.g.
  • Page 48 Volume Conversion Device EK260 I3 Warn.sig. Warning signal on Input I3 Message 8 in St.3 This message is displayed, for example, while ever an active signal is presen t, i.e. the terminals are connected through a low resistance. For connection of a contact for tamper detection, the warning input can also be set such that this message is displayed while ever an inactive signal is present, i.e.
  • Page 49 Message 14 in St.4 For protection against unauthorised parameterisation or reading out via a serial interface, the EK260 has a total of four locks in the following order of priority: Calibration, manufacturer's, supplier's and customer's locks. The calibration lock can be opened and closed using a sealable pushbutton which is located inside the device (→...

  • Page 50: Status Register Addresses

    Call Win.1+ remains however entered until the data transmission has finished. Dayl.Sav.Tim The displayed time is daylight saving time Message 16 in StSy In the system list (→ 3.8) you can set under MdTim whether the EK260 carries out automatic daylight saving switchover or not. Call Win.1 Call acceptance time window 1 is active Message 16 in St.1...

  • Page 51: System List

    5, 10, 15, 20, 30 or 60 seconds. In addition MCyc must be an integer factor of OCyc (see below). Entries of values not satisfying these conditions are, where possible, corrected automatically. If the EK260 does not find any suitable value during the correction attempt, it rejects the entry with error message "6". ( → 2.3.3) In applications subject to official calibration MCyc must be less than or equal to 20 seconds.
  • Page 52 MCyc (see above). Entries of other values are, where possible, corrected automat ically. If the EK260 does not find any suitable value during the correction attempt, it rejects the entry with error message "6".

  • Page 53: Service List

    Volume Conversion Device EK260 3.9 Service list Designation / value Unit Access Address DC Bat.R Remaining battery service life Months 2:404 Bat.C Battery capacity 1:1F3 St.SL Supplier's lock: Status / close 3:170 Cod.S Supplier's combination, enter / change 3:171 St.CL...
  • Page 54 (= 2 batteries) used. With the use of battery packs obtainable from Elster GmbH with two size "D" cells, the value 13.0 Ah should be entered for Bat.C and 26.0 Ah when 4 cells are used.
  • Page 55 ("Clock n. set") in the system status in the status Stat. (→ page 48). Sel.p Pressure sensor selection With this value the EK260 is informed of which pressure se nsor is installed: 0 = No pressure sensor 2: CT30 On changing this value the designation of the pressure sensor Typ.p (→ 3.3) is appropriately changed automatically.
  • Page 56 EK260 is changed. In order that the archives are not unintentionally deleted, the following safety mechanism is integrated: To clear the archives the EK260 serial number (found on the name-plate of the device) must be entered.
  • Page 57 Volume Conversion Device EK260 ArCal Frozen values Freeze ArCal is the entry address for the calibration archive which contains the two last manually frozen data rows with measurements. Freezing is carried out with Frz. The calibration archive is especially intended for operating point checks.

  • Page 58: Input List

    (Legends: see page 22) Original encoder counter reading or total volume on Input 1 Vo is the "origin counter" of the EK260, i.e. all the increments in the actual and volume at base conditionss are derived from this. In principle Vo cannot be changed by entry.
  • Page 59 5: Encoder input (The values "2" and "3" can also be entered here, but they are not meaningful.) If the EK260 is connected to the pulse output (reed contact) of a counter, Md.I1 should be set to "1". With the connection of a gas meter with encoder (→ 4.5 ) Md.I1 should be set to "5".
  • Page 60 1: Counting input. 2: Status input. When the input is used as a counting input, the EK260 can, for example, be parameterised such that it carries out a pulse comparison of Inputs 1 and 2 and signals impermissibly large deviations.
  • Page 61 Volume Conversion Device EK260 a) I2 is a counting input (Md.I2 = "1") - Pulse comparison on Inputs 1 and 2 Value Setting Comment Md.I2 Input mode "counting input" MdMI2 Monitoring mode "pulse comparison" SC.I2 01:226_0 = "PulI1" Address of pulse counter for Input 1 L1.I2...
  • Page 62 Volume Conversion Device EK260 - Input 2 is an active reporting input (input for report signal): Value Setting Comment Md.I2 Input mode "status input" Monitoring mode: "Signal when SC.I2 ≥ L1.I2" MdMI2 SC.I2 02:228_0 Status on Input 2 = "St.I2"...
  • Page 63 Volume Conversion Device EK260 MdMI3 Mode for monitoring I3 SC.I3 Source for monitoring I3 L1.I3 Limit 1 I3 SpI3 Status pointer for monitoring I3 By setting these values the following functions can be realised for Input 3 (Input 3 is only used as status input).

  • Page 64: Output List

    Volume Conversion Device EK260 - Input 3 is time-synchronised input: Value Setting Comment MdMI3 Monitoring mode: "Time-synchronised input" SC.I3 03:228_0 Status on Input 3 = "St.I3" L1.I3 Comparative value SpI3 0.13_02:1.1 Pointer to message "13" in status 3 (report) ↑...
  • Page 65 Md.O1 ... Md.O4 Mode for Outputs 1...4 The four signal outputs of the EK260 can be set for various functions. The basic function is defined with the mode Md.A... Depending on this, the source (SC.A..., see below), the cp value (cp.A..., see below) or the status pointer (SpA..., see below) must also be parameterised, where necessary, for the relevant output.
  • Page 66 Volume Conversion Device EK260 SC.O1 ... SC.O4 Source for Outputs 1...4 These values are only of significance if the mode Md.A... of the same output is set to "1" (volume pulse output), "3" (time-synchronised output) or "8" (HF output). If the error message "12" appears when attempt ing to make an entry, the address cannot be used with the set mode (Md.A..., see above).
  • Page 67 Volume Conversion Device EK260 - for mode "8" (HF output, only for Output 2) SC.A... Output "DA2" corresponds to 0002:310_0 Flow at base conditions Qb 0004:310_0 Actual flow Qm 0001:310_0 Power P 0007:310_1 Pressure p 0006:310_1 Temperature T cp.O1 ... cp.O4 cp value for Outputs 1...4...
  • Page 68 Volume Conversion Device EK260 Example of a "message group": "Messages 1 to 8" signify that the output is switched while ever one or more of the messages with the number "1" to "8" is present in the momentary status. "Message groups" always start with the message "1" ("any of the messages 1 to ...").

  • Page 69: Parameterising The Hf Output

    Frequency for Aj1O2 for Output 2 f2.O2 Frequency for Aj2O2 for Output 2 With an external power supply of the EK260 Output 2 (DA2) can be used as an HF output by setting Md.O2 = "8". The output frequency is then proportional to a quantity, e.g.

  • Page 70: Brief Summary Of Output Parameterisation

    Volume Conversion Device EK260 3.11.2 Brief summary of output parameterisation s Volume pulse output ............Md.A.. = 1 or 5 ¢ Selection of the volume counter: - Vb Volume at base conditions, undisturbed..SC.A... = 0002:300_0 - VbD Volume at base conditions, disturbance quantity SC.A...

  • Page 71: Interface List

    Volume Conversion Device EK260 3.12 Interface list The values displayed in this list depend on the set interface mode Md.S2 (see below): a) All modes except "Modbus" (Md.S2 ≠ 13): Designation / value Unit Access Address DC Md.S2 Mode, Interface 2 2:705 DF.S2...
  • Page 72 Volume Conversion Device EK260 Md.S2 Mode, Interface 2 This value informs the EK260 which device is connected to the internal (permanently wired) interface and how it is to be controlled. All the modes which can be set are described here. You can quickly find the setting suitable for your application in Chapter 4.7.
  • Page 73 Baud rate lines selection In the mode Md.S2 = 6 the EK260 handles, as with Md.S2 = 3 (see above), the modem control over the data lines via "responses". The modem is not parameterised for automatic call acceptance. Suitable for the connection of an FE230. (Pure battery-operated application "...
  • Page 74 Md.S2 = "3" and Md.S2 = "5" only function when the value "1:1FB" = "1" which can be called via the interface is set (standard setting). The means that the EK260 with external supply remains continually active to monitor the interface. With "1:1FB = 0"...
  • Page 75 Bd.S2 Baud rate, Interface 2 Here, the initial baud rate (speed) for the data transmi ssion between the EK260 and a device connected to the interface terminals can be set. Possible settings: 300, 600, 1200, 2400, 4800, 9600, 19200 With the application of the baud rate selection the baud rate is generally set according to (DIN) EN 61107 to "300".
  • Page 76 <ENTER> during the display of GSM.L. Bd.S1 Baud rate, Interface 1 Here, the baud rate (speed) for the data transmission b etween the EK260 and a device connected to the optical interface can be set. The standard setting is 9600 Bd. If problems occur with the data transmi ssion, then this is probably due to the readout lead.
  • Page 77 Send short message These values are only valid when using a GSM modem. The EK260 is able to send a short message by SMS, e.g. to a mobile telephone, on the occurrence of definable events. In this respect the message content, recipient and trigger events can be set with the WinPADS parameterisation program.

  • Page 78: Printer Log 3

    Volume Conversion Device EK260 3.12.1 Printer log Designation / value Unit Access Address DC PrCyc Printer log cyclical Minutes 13:150 daily Printer log daily 3:141_1 StPrL Status pointer for printer line 2:7E2 PL.V1 Printer log 3 column 3:1CA PL.V2 Printer log 4...
  • Page 79 Volume Conversion Device EK260 PrCyc Printer log cyclical One data line is printed out in each case on this cycle. PrCyc must be an integer multiple of the operating cycle OCyc (→ 3.8) or "0". With PrCyc = "0" only the setting "daily" (see below) for the daily printer output is effective.

  • Page 80: Automatic Setting Of The Clock By Remote Data Transmission

    • A modem ready for operation must be connected to the EK260. • The EK260 must be set to an interface mode Md.S2 (à 3.12) in which it controls the modem, i.e. Md.S2 = 3 or 6. The function is not possible in all other modes, even when a modem is connected.
  • Page 81 Volume Conversion Device EK260 With each setting of the clock an entry is made into the measurement period • archive (à 3.6). The memory duration is then reduced and the data transfer time extended. With daily setting of the clock you lose, for example, abou t 4% of the memory duration and the data transfer takes about 4% longer.

  • Page 82: Modbus Parameters

    Reading out via the Modbus is described in separate documents from Elster GmbH. External power supply is required for the EK260 for the Modbus communication and at least one readout time window must be open. In the interface list "Ser.IO" (→ 3.12 ) Md.S2 must be set to "13"...
  • Page 83 Volume Conversion Device EK260 Fmt1 … Fmt40 Data format for Modbus Registers 1 to 40 The data format code for each register according to the table (see below). For details please request the separate document from Elster GmbH. Code Format No. of registers...
  • Page 84 Volume Conversion Device EK260 LAd1 … LAd40 LIS-200 addresses for Modbus Registers 1 to 40 Not all the device information can be read via Modbus, but rather only important values such as counter readings and measurements. The list below shows the standard setting.

  • Page 85: Energy List

    Volume Conversion Device EK260 Example of Modbus parameterisation: In order to read the 9 predecimal places of the actual total v olume counter under Modbus address "101" and the current gas temperature in °C under Modbus address "309", the parameters must be set as follows with the aid of the "WinPADS" Parameterising Software via the optical interface: W1 01:08C0.0 (101)
  • Page 86 Volume Conversion Device EK260 W adjustable counter Here, as with WT, the total quantity, i.e. disturbed and undisturbed volumes, are counted. In contrast to WT, WA can however be changed manually. The counter is typically used for tests. Ho.b Calorific value The calorific value is used for calculating the energy.

  • Page 87: User List

    ( → 3.7). The setting of the values to be displayed occurs by using the parameterisation software "WinPADS". With Menu the complete display structure of the EK260 can be switched between "complete" and "simple". Menu =...

  • Page 88: Applications

    Volume Conversion Device EK260 4 Applications 4.1 Rated operating conditions for the various conversion methods In determining the actual permissible measurement range for the pressure and temperature of the gas, apart from the technical possibilities offered by the connected measurement sensor, the conversion method must also to be considered. The alarm limits Tmin, Tmax, pmin and pmax can lie outside of the measurement range and differ by up to 5% (for pressure) or 1°C (for temperature) from the measurement range limits.
  • Page 89 Volume Conversion Device EK260 S-Gerg 88 (Md.K = 1, see Chapter 3.5) This method is suitable for natural gases and their mixtures 1.) at temperatures between -10°C and +60°C and for absolute pressures up to 26 bar 2.) at temperatures between -10°C and +60°C, also at absolute pressures above 26 bar,...

  • Page 90: Application As High Flow Display Device

    Volume Conversion Device EK260 4.2 Application as high flow display device The EK260 possesses an integral high flow display function with nationally certificated type approval. Permissible values are: the maximum volume at base conditions flow per measurement period within one...

  • Page 91: Application As Flow Recording Device

    Volume Conversion Device EK260 4.3 Application as flow recording device The EK260 possesses an integral flow recording function with nationally certificated type approval. In the measurement period archive ( → Chapter 3.6) the counter readings Vb and Vm used for billing are included as well as their increments ∆Vb and ∆Vm. The increments always refer to the previous archive row.

  • Page 92: Connecting A Meter With Encoder

    No loss of actual volume due to temporary disturbances. When using a modem on the EK260, the counter reading of the gas meter (actual counter) can be read remotely. With the connection of an encoder totalizer, Md.I1 ( → 3.10 ) should be set to "5". A copy of the cyclically read gas meter counter reading can then be called into the EK260 display as the actual counter Vo (→...

  • Page 93: Application In Areas Subject To Explosion Hazards

    4.6 Application in areas subject to explosion hazards 4.6.1 Applications in Zone 1 The EK260 is suitable for applications in Ex Zone 1 for gases in the temperature class T4 (ignition temperature > 135°C, e.g. natural gas). (Certificate of conformance: à Appendix...

  • Page 94: Applications For Interface 2

    For this application the EK260 needs external power supply. For connection see Chap. 5.5.2, page 106). A modem with RS232 interface is connected to the EK260; RS232 control lines such as "Ring", "DCD" etc. are not connected. Settings under the interface list (→ 3.12, page 71): - Md.S2 = 3...

  • Page 95: Fe260 Function Expansion With Modem

    For connection see Chap. 5.5.5, page 107. The FE260 is a mains-powered function expansion incl. Ex isolation and supply for the EK260. It has alternatively an integral modem or a connection for a device with serial interface. Settings under the interface list (→ 3.12, page 71): - Md.S2 = 5...

  • Page 96: Printer On The Ek260 Or On An Fe260

    4.7.6 Printer on the EK260 or on an FE260 Further information on using a printer: → 3.12, DProt and 3.12.1. Connection of a printer directly to the EK260: See Chap. 5.5.3, page 106. Connection of a printer to an FE260: See Chap. 5.5.5, page 107 .

  • Page 97: Sending Short Messages By Sms

    If a modem (except FE230) is connected to Interface 2, then with definable events the EK260 can send a brief message by a short message (Short Message Service in the GSM mobile radio network). To do this, a large number of settings are needed which cannot be made by means of the keypad on the device, but instead with the aid of the "WinPADS"...
  • Page 98 Additionally, each data record includes the device type ("EK260"), the serial number of the EK260 as well as the customer number and customer name. For unambiguous identification all the values are transmitted with a prefixed address.

  • Page 99: Installation And Maintenance

    Volume Conversion Device EK260 5 Installation and maintenance The EK260 is suitable for wall mounting and for installation on a gas meter. The holes for wall mounting become accessible after opening the housing cover. For installation on a meter a mounting bracket is required.

  • Page 100: Mounting

    Volume Conversion Device EK260 5.2 Mounting 5.2.1 Wall mounting Four holes are provided in the housing for wall mounting: 110.00mm Fig. 1: Drilling template for wall mounting For a selection of suitable mounting screws: see Fig. 2 6.6mm Fig. 2: Cross-section of the mounting holes.

  • Page 101: Meter Superstructure

    Volume Conversion Device EK260 5.2.2 Meter superstructure Fig. 3: Mounting the EK260 on an "S1" meter head. Elster GmbH...

  • Page 102: Cable Connection And Earthing

    Volume Conversion Device EK260 5.3 Cable connection and earthing The EK260 housing must always be earthed in order to divert high energy and high voltage electromagnetic interference. An M6 screw is provided for this on the left -hand side of the housing.

  • Page 103: Terminal Layout

    Volume Conversion Device EK260 5.4 Terminal layout Connection of the individual cables is made to the corresponding terminals on the circuit board in the housing cover. When positioning the cables, make sure that no cables are pinched as the cover is closed.
  • Page 104 Volume Conversion Device EK260 Serial Interface: Type RS-232 * Type RS-485 * TD / T- Transmitted data (output) Transmitted data - RS / T+ Control output Transmitted data + RD / R- Received data (input) Received data - CS / R+...

  • Page 105: Connection Of The Serial Interface

    * Pin numbers of the DSUB-9 plug and wire colours when using a ready-made cable obtainable from Elster GmbH, e.g. Order No. 73016923 (2 m) or 73017268 (10 m). ** A capacitor with a capacity of 1 µF (labelled "105...") is Capacitor enclosed with the EK260 in the accessories bag.

  • Page 106: Modem Without Control Signals

    Volume Conversion Device EK260 5.5.2 Modem without control signals For this application the EK260 needs an external power supply ! Connection diagram: EK260 Modem → TD / T- RS / T+ (open) ← RD / R- CS / R+ (open) (open) 5.5.3 Printer...

  • Page 107: Other Devices With Rs-232 Interface

    DTR or RTS 5.5.5 FE260 Function Expansion (optionally with modem) For this application the EK260 also needs the external power supp ly through the FE260, i.e. the Uext+ and - terminals must be connected (see below). No data transmission can take place during a power failure.

  • Page 108: Fe230 Function Expansion

    "DE2", e.g. for a pulse comparison (→ page 61). Any polarity can be chosen. Connection diagram: When using the lead available from Elster GmbH with Pulse the order no. 73017093 (about 70 cm long), the...

  • Page 109: Connection Of An Encoder

    Here it does not matter to which of the two shown pins of the encoder plug "+" and "-" are connected. When using the lead available from Elster GmbH with the order no. 73017093 (about 70 cm long), the pink (-) and (+) yellow cores must be connected (polarity not important): •...

  • Page 110: Seal Layout Of Basic Device

    Volume Conversion Device EK260 5.8.1 Seal layout of basic device a) Housing cover (internal view) Sealing points for Plombierpunkte zur Plombierpunkte zur Sealing points for securing the Sicherung der Sicherung des securing the PCB cover calibration switch Leiterkarten-Abdeckung Eichschalters Uext...
  • Page 111 Volume Conversion Device EK260 c) Housing cover (front view), cover sealing using wire seal (optional user sealing) Kreuzlochschrauben Capstan headed screws for wire für Drahtplombe seal for securing the device Drahtplombe zur Sicherung des Gerätes Wire seal EK260 Prefix Arc.

  • Page 112: Seal Layout Of Temperature Sensor

    The sealing of the temperature sensor is generally carried with wire seals. In this section the sealing methods used by Elster GmbH for the standard temperature sensors are illustrated as examples. Other variants of seals are possible depen ding on the combination of temperature sensor and thermowell.

  • Page 113: Sealing Layout Of Pressure Sensor

    Volume Conversion Device EK260 5.8.3 Sealing layout of pressure sensor The sealing points shown in the sealing layouts are to be secured with se aling labels a) Internal fitting Drahtplombe Wire seal Plombierhülse Sealing sleeve Volume Conversion Mengenumwerter Device Pressure connector...

  • Page 114: Battery Replacement

    Before the old batteries are removed, the new batteries must be connected. A total of four plugs are provided for this. EK260 measurements may be lost due to careless procedures. All the set parameters, along with the once-daily date, time and counter readings are saved in a non-volatile memory (EEPROM) and automatically recalled when required.
  • Page 115 13.0 Ah should be entered for Bat.C and 26.0 Ah when 4 cells are used. 9. Check the operating life calculated by the EK260: For Bat.R (→ 3.9) at least 60 months must be displayed. If this is not the case, carry out the step 8 again.

  • Page 116: A Approvals

    Volume Conversion Device EK260 A Approvals A.1 EC Declaration of Conformance Declaration of Conformance Manufacturer: Elster GmbH Steinern Straße 19-21 55252 Mainz-Kastel Germany Product designation: Volume Conversion Device EK260 Type designation: Based on its design, construction and type, in the version brought by us into circulation, the above product conforms to the basic safety requirements of the following directives and harmonised standards including the changes applicable at the time of the declar ation.

  • Page 117: Approval For Ex Zone 1

    Volume Conversion Device EK260 A.2 Approval for Ex Zone 1 Elster GmbH...
  • Page 118 Volume Conversion Device EK260 Elster GmbH...
  • Page 119 Volume Conversion Device EK260 Elster GmbH...
  • Page 120 Volume Conversion Device EK260 Elster GmbH...
  • Page 121 Volume Conversion Device EK260 Elster GmbH...

  • Page 122: B Technical Data

    Class B-2 Batteries Batteries 2 lithium batteries; 3.6V; size D normal rated capacity: 16.5 Ah Usable capacity for EK260: 13.0 Ah Order no.: 73015774 2 additional lithium batteries optional for double service life Order no.: 73015774 The min. service life of five years is guaranteed with two batteries for the following standard...

  • Page 123: External Power Supply

    Nominal data For data which is not mentioned here, the limits in the certificate of conformance must be observed when using the EK260 in Ex Zone 1. a) Application as LF pulse or signal input (Md.I1, Md.I2, Md.I3 ≠ 5): ≈...

  • Page 124: Signal And Pulse Outputs

    Designation DA1... DA4 Nominal data: For data which is not mentioned here, the limits in the certificate of conformance must be observed when using the EK260 in Ex Zone 1. Maximum switching voltage 30 V DC Maximum switching current 100 mA DC...

  • Page 125: Pressure Sensor

    Volume Conversion Device EK260 B-8 Pressure sensor The pressure sensor can be implemented either as an inter nal or external variant. Connection: Pressure connection: Ermeto M12 x 1.5 male thread Usable length approx. 10 mm Installation information: When connecting the pressure line to the pressure sensor, attention must be paid to the pipe diameter to avoid damage and leaks on the gland connection.

  • Page 126: C Index

    Volume Conversion Device EK260 Index Alarm · 23, 41 Interface · 16, 48, 50, 72, 77 Alarm limits · 11, 45 Ambient temperature · 52, 125 Logbook · 42 Archive · 24, 37, 86, 90 Measurement period archive · 30, 33 Monthly archive ·...

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