Elster EK260 Specification sheet

EK260
Volume Conversion Device EK260
Operating ManualandInstallation Instructions
OperatingManual: 73016960 SWVersion: fromV2.52
Issued: 13.03.08(p) Edition:

Volume Conversion Device EK260
2 Elster GmbH
All rights reserved.
Copyright © 2008 ElsterGmbH, D-55252 Mainz-Kastel
All the figures and descriptions inthisoperating andinstructionmanualhave been
compiled onlyaftercarefulchecking. Despite thishowever, the possibility of errors cannot
be completelyeliminated.Therefore,noguarantee can be givenforcompleteness orfor
the content.Also,themanualcannotbe takenas givingassurancewith regard to product
characteristics. Furthermore, characteristics are also described initthatare onlyavailable
as options.
The right isreserved tomake changes inthecourse of technicaldevelopment. Wewould
be very grateful for suggestions for improvement and notification of any errors, etc.
Withregardtoextendedproduct liabilitythedata andmaterial characteristics given
shouldonlybetakenas guidevalues andmust alwaysbeindividuallycheckedand
correctedwhereapplicable. This particularlyapplies wheresafetyaspectsmust be
takenintoaccount.
You can obtain further support fromthe branch or representative responsible for your area.
You willfind the address inthe Internet or simply enquireat Elster GmbH.
Passing thismanualto third parties and its duplication, in full orinpart, areonlyallowed
with written permission fromElster GmbH.
The guarantee becomes invalidif theproduct described hereisnothandled properly,
repairedor modifiedby unauthorised persons or ifreplacement parts which are not
genuine parts fromElster GmbH are used.
Mainz-Kastel, March 2008

Volume Conversion Device EK260
Elster GmbH 3
Contents
ISafetyinstructions.......................................................................................................5
II Items suppliedandaccessories.................................................................................6
1Brief description ..........................................................................................................7
2Operation......................................................................................................................9
2.1 Front panel...............................................................................................................9
2.2 Display...................................................................................................................10
2.2.1 Line1= Labels...........................................................................................................10
2.2.2 Line2= Valuewithnameandunit.............................................................................12
2.3 Keypad...................................................................................................................13
2.3.1 Changingvalues........................................................................................................14
2.3.2 Enteringsources........................................................................................................15
2.3.3 Entry errors................................................................................................................15
2.4 Access rights..........................................................................................................16
2.4.1 Calibrationlock ..........................................................................................................16
2.4.2 Calibrationlogbook....................................................................................................17
2.4.3 Supplier's lock andcustomer's lock............................................................................17
2.5 Formation of the list structure.................................................................................17
3Functional description...............................................................................................22
3.1 Standard Volume (Volume at base conditions)list.................................................23
3.2 Actualvolume (volumeatmeasurementconditions) list..........................................25
3.3 Pressure list ...........................................................................................................28
3.4 Temperature list .....................................................................................................31
3.5 Volume corrector list ..............................................................................................34
3.6 Archive list..............................................................................................................37
3.6.1 Devicenumbers andchannel numbers forWinView andWinLIS............................... 40
3.6.2 Find functionfor checkingthearchiveentries............................................................. 40
3.7 Status list................................................................................................................41
3.7.1 List of status messages.............................................................................................. 44
3.7.2 Status register addresses........................................................................................... 50
3.8 Systemlist..............................................................................................................51
3.9 Service list..............................................................................................................53
3.10 Input list..................................................................................................................58
3.11 Output list...............................................................................................................64
3.11.1 ParameterisingtheHF output .................................................................................... 69
3.11.2 Briefsummary of output parameterisation..................................................................70
3.12 Interfacelist............................................................................................................71
3.12.1 Printer log ..................................................................................................................78
3.12.2 Automaticsettingof the clock by remotedatatransmission .......................................80
3.12.3 Modbusparameters...................................................................................................82
3.13 Energy list ..............................................................................................................85
3.14 User list..................................................................................................................87
4Applications ...............................................................................................................88
4.1 Rated operating conditions for the various conversion methods............................88
4.2 Applicationas high flowdisplay device ..................................................................90
4.3 Applicationas flowrecording device ......................................................................91
4.4 Connection of a counter with LFpulse transmitter .................................................91
4.5 Connecting ameter with encoder...........................................................................92

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4.6 Applicationin areas subject to explosion hazards ................................................. 93
4.6.1 Applications inZone1................................................................................................ 93
4.6.2 Applications inZone2................................................................................................ 93
4.7 Applicationsfor Interface 2 .................................................................................... 94
4.7.1 Modem withcontrol signals(standardmodem).......................................................... 94
4.7.2 Modem withoutcontrol signals...................................................................................94
4.7.3 FE260FunctionExpansionwithmodem....................................................................95
4.7.4 FE260FunctionExpansionwithout modem ............................................................... 95
4.7.5 FE230FunctionExpansionwithmodem....................................................................95
4.7.6 PrinterontheEK260oronanFE260.........................................................................96
4.7.7 Other devicewithRS232 interface(e.g.PC).............................................................. 96
4.7.8 Modbusprotocol.........................................................................................................96
4.7.9 Sendingshort messages bySMS...............................................................................97
4.7.10 Standardoutputdatarecords forprocess data("three-minutevalues")......................97
5Installationandmaintenance ................................................................................... 99
5.1 Installation procedure ............................................................................................ 99
5.2 Mounting.............................................................................................................. 100
5.2.1 Wall mounting ..........................................................................................................100
5.2.2 Meter superstructure................................................................................................ 101
5.3 Cable connection and earthing ............................................................................ 102
5.4 Terminallayout.................................................................................................... 103
5.5 Connection of the serialinterface ........................................................................ 105
5.5.1 Modem withcontrol signals......................................................................................105
5.5.2 Modem withoutcontrol signals.................................................................................106
5.5.3 Printer...................................................................................................................... 106
5.5.4 Other deviceswithRS-232interface........................................................................107
5.5.5 FE260FunctionExpansion(optionally withmodem)................................................107
5.5.6 FE230FunctionExpansion ...................................................................................... 108
5.6 Connection of a low-frequency pulse transmitter (reed contacts) ........................ 108
5.7 Connection of an encoder.................................................................................... 109
5.8 Seals.................................................................................................................... 109
5.8.1 Seallayoutof basic device....................................................................................... 110
5.8.2 Seallayoutof temperaturesensor............................................................................112
5.8.3 Sealing layoutofpressuresensor............................................................................113
5.9 Battery replacement............................................................................................. 114
AApprovals................................................................................................................. 116
A.1 EC Declaration of Conformance.......................................................................... 116
A.2 ApprovalforExZone 1........................................................................................ 117
BTechnical data ......................................................................................................... 122
B-1 Generaldata (mechanical, terminals, ambient conditions)..................................122
B-2 Batteries .............................................................................................................. 122
B-3 Externalpower supply ......................................................................................... 123
B-4 Pulse, status andencoder inputs......................................................................... 123
B-5 Signaland pulse outputs..................................................................................... 124
B-6 Optical serialinterface......................................................................................... 124
B-7 Electricalserialinterface (internal)....................................................................... 124
B-8 Pressure sensor ..................................................................................................125
B-9 Temperature sensor ............................................................................................ 125
B-10 Measurement uncertainty .................................................................................... 125
CIndex......................................................................................................................... 126

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I Safetyinstructions
FThe connections of the EK260 are freely accessible during setting up.Therefore, make
surethat no electrostaticdischarge (ESD)can occurinordertoavoiddamagetothe
components. Theperson carryingouttheinstallationcan, forexample,discharge
himself/herselfbytouchingthepotential equalisationline.
FToavoiderroneousoperation andproblems,the operatingmanual mustberead
beforeputtingtheEK260 into operation.
The EK260 VolumeConversionDevice(VolumeConversionDevice)issuitablefor
applications inExZone 1 forgasesinthe temperature class T4(ignitiontemperature >
135°C, e.g. naturalgas)according to VDE 0170. (see AppendixA-2)
In this application itis essentialto take noteofthe following information:
FFollow theregulationsin therelevantstandards,inparticularDINEN60079-14(VDE
0165Part1)andDIN EN 50014.
FMake sure that the limitsquoted in the certificateof conformance (see AppendixA-2) for
the devices to be connected are not exceeded.
FThehousingof theEK260must be eartheddirectly to apotentialequalisation strip.A
terminal screw isprovidedforthisonthelefthousingwall.

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6 Elster GmbH
II Items suppliedandaccessories
Items supplied:
The items suppliedwith the EK260 include:
a) EK260 Volume Conversion Device
b) Dispatch list
c) Configuration datasheet
d) OperatingManual
e) 3 blindinsertion seals for gland-type cableentries
f) Lead sleevesfor sealing thepressure connection.
Orderinginformationandaccessories Order no.
•EK260 VolumeConversion Device,complete 83 462 140
•EBL 50Thermowell, complete withM10 x1 weld-in sleeve 73 012 634
•EBL 67Thermowell, complete withM10 x1 weld-in sleeve 73 014 456
•EBL 160Thermowell, complete with G3/4" weld-in sleeve and sealing ring
73 012 100
•EBL 250Thermowell, complete with G3/4" weld-in sleeve and sealing ring
73 012 100
•Three-way test tap 73 008 403
•Shut-off ball valve with Ermeto 6Ltest connection 73 016 166
•Minimess testconnection 73 016 167
•Operating manual, German 73 016 960
•Operating manual,English 73 017 115
•Operating manual, French 73 017 218
•Plug-in terminal, 2-poleblack 04 130 407
•Calibration coveringcap 73 016 879
•Battery module, 13Ah 73 015 774

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Elster GmbH 7
1 Brief description
The EK260 VolumeConversion Device isused for the conversion of the gas volume
measured at line conditions by agas meter into the base conditions and into the
appropriate energy.
The pressure and temperature aremeasured for the determination of the line conditions.
The invertedcompressibility factorratio (K-value) canalternativelybe calculatedaccording
to S-GERG 88 or AGA-NX19 or itcan be entered as aconstant. The volumeisconverted
intoenergy using the adjustable calorific value.
The integralrecording device contains meter readingsand maximafromthe last
15 months and the consumption profileof thelast 9months for ameasurement period of
60 minutes.
Powersupply:
•Battery operation with a servicelife depending on operating mode ≥5 years.
•Optionaldouble battery life is possible by connection ofan additionalbattery pack.
•Battery replacement possiblewithout loss of data and without violation ofcalibration seals.
•Data retention without batterysupply due to internalEEPROM.
•Connection forexternalpower supply unit.
Operatorinterface:
•Alphanumericdisplay withtwo lines of 16 characters.
•A display list freely assignable by the user.
•Programming via keypad possible.
•Calibration switch (separatelysealed inthe device).
•Calibration logbook according toPTB-A50.7 for changing valuesrelevantto calibration
without the calibration lock.
•Two user locks (supplier's and customer's locks)with numericalcodes.
•Accessrights for each individualvalue can be set separatelyvia interface (withappropriate
rights).
Counter/ signal inputs:
•3 inputs for reed contacts or transistor switches, programmable as pulse orsignal inputs.
•Connection provided foran ElsterGmbH C1Encoder Counter for digitaltransmission of
genuine counter readings (also in battery mode).
•Maximumcounting frequency 2 Hz(adjustable).
•Pulse value foreachinput separately adjustable, also non-decade.
•Various counters for Vb and Vm and foreach input (maincounter, originalcounter,
disturbance volumes, totaliser, adj. counter, measurement period counter, day counter).
•Eachinput can be separately sealed and secured underofficialcalibration.
Pulse / signal outputs:
•4 programmable transistor outputs, each freelyprogrammable as alarm/ warningoutput,
pulse output, signaloutput for limitmonitoring.
•Eachoutput can be separately sealed and secured under officialcalibration.

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8 Elster GmbH
Data interface:
•Opticalinterface according to IEC 62056-21 (replaces IEC61107 andEN61107).
•Permanentlywiredserialinterface (RS232 orRS485).
•MODBUSprotocolviathe permanentlywired serialinterface.
•Automatic setting of theclockbyremotedatatransmission witha modemconnected.
•Sending short messagesbySMS.
•Programmable standard output data recordsfor process data ("three-minute values").
Pressure andtemperature sensors:
•Pressure sensor type CT30 integratedin device,or externalmounted.
•Pt500 temperaturesensor,variable length.
Mechanical details /housing:
•Suitable for wall mounting and meter installation (with mounting bracket).
•Mounting +device installation without breaking the calibration seals.
•Ambient temperature range: -25°C...+55°C
Extendedtemperature range with restrictedfunctions possible.
Approvals:
•Approvalby calibration authorities
- as Volume Conversion Device acc. MID-Directive 2004/22/EG,
- as flowrecordingdeviceacc. PTB-A50.7,
- as high flow display device acc. PTB-A50.7.
•Exapprovalfor use inExZone 1according to EEx ib IIC T4.
Monitoringfunctions
•Monitoring of signalling inputs.
•Monitoring of anyvalues with respectto programmable limits.
•All monitoring can trigger appropriate reactionssuch as for example, entries in the status
register, logbook orarchives orsignalling via outputs.
Archives
•Counterreadings and maxima fromthelast 15months for Vband Vm.
•Mean values, maximaand minima fromthelast15 months for pressure andtemperature
as well aspartially for the inverted compressibility factor ratio and conversion factor.
•Measurement periodvalues(consumption profile) fromthelast 9 months forVb, Vm,p, T,
Kand Cfor a measurementperiod of 60 minutes. The measurementperiod can beset in
the range from1 to 60 minutes.
•Automatic changeover to daylight savingtimecan be set.
•Event logbookwith250 entries for events such as forexamplestatus changes, signalling
inputs, limitviolations.
•Changes logbook ("audit trail") with entryof thelast 200changesto settings
(parameterising steps).

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2 Operation
2.1 Frontpanel
The followingare positionedon the front panelfor operation:
•Two-line alphanumeric display with 16 characters perline.
•Sixkeys for the display andentryof values.
MadeinGermany
EK260
Submenu
Instromet
ESC
ENTER
Arc. Status MenuPrefix
Typenschild
Identification label

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10 Elster GmbH
2.2 Display
Basic display structure (withan example):
Prefix Archive Device status Me n u
m a x á A W B V b à
Submenu
V b A 1 2 3 4 5 6 7 . 8 m 3
Both linesin the display are subdivided into fields which aredescribed below.
2.2.1 Line 1 =Labels
The firstline is subdivided into five fields ofwhich four are labelled onthe front panel:
1. Prefix (Type of computation)
The type of computation identifies so-called "initialvalues"(also termed "capture values").
These arevalues which have been formed over atime period (e.g.the adjustable
measurement period or one month). Labels:
- max Maximum – highest value within the time range
- min Minimum – lowest value within the time range
- ∆Change – volume within the time range
- ∅Mean – meanwithin the time range
2. Archive
If an arrowpoints upwards to the label "Archive", thenthedisplayedvalue isan archived
value. This was frozen at a definedpoint intime and cannot be changed.

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3. Devicestatus
Here amaximumof three of themost important itemsof status informationarecontinually
shown.
A flashing character signifies that the relevant state isstillpresent and the relevant
message is presentin the momentary status.
A non-flashing character signifiesthat the relevant state ispast, but the message in the
status register has not yet beencleared.
Meaning of the letters:
- A "Alarm"
At least one status message has occurred which has resultedin disturbance
volumes beingcounted.
Basically, all messages with numbersin therange "1" and "2" representalarms (e.g.
"Alarmlimits for pressureor temperature violated" →3.7).
Alarmmessages are copied intothestatus register and areretained here,evenafter
rectification ofthecause of theerror,until theyare manually cleared.
- W "Warning"
At least one status message has occurred which is valid as awarning.
Basically, all messages with numbersin therange "3" to "8"represent warnings (e.g.
"Warning limits for pressure ortemperature violated" or"Error onoutput" →3.7).
Warning messages are copied into the status register andare retained here, even
after rectification of thecause of the error, until they are manually cleared.
- B "Batteries flat"
The remaining battery servicelife is less than 3 months.
This display corresponds to the status message "Batt.low" (→Page 48 ).
- L "Calibration logbook full"
The calibration logbook is full; someparameters cannow only be changed with the
calibration lock open. (→PLogB,page 42)
This display corresponds to the status message "PLogBfull", (→page 0).
F
If thecalibration lock is opened withthecalibration logbook full, it can onlybe
closed againafterclearing the calibration logbook.
- P "Programming mode"
The programming lock (calibration lock) is open.
This display corresponds to the status message "Cal.locko." (→Page 48 ).
- M "Measurement error"
The connected gasmeter encoder doesnot supply a fault-free counter reading.
Aflashing"M" correspondsto the statusmessage "Coder fault" (→Page 48 ).
- o "online"
Adata transfer via the opticalor permanentlywired interfaceis running.In each case
the other interface cannot then beused.
This display corresponds to the status message "online"(→Page 48 ).
4. Menu
Here isdisplayed to which list according toChapter 3 the currentlydisplayedvalue
belongs. In submenus (indicated by an arrowto the left, see below)its nameisdisplayed
which isidenticalto the abbreviated designation of theentrypoint.

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5. Submenu
- →Arrow to the right
indicates that the displayed valueis theentry point of asubmenu. This canbe
called with thekey [ENTER].
- ←Arrow to the left
indicates that you arelocated in a submenu which can be quitwith the key [ESC].
On pressing [ESC]youare returnedto the entry point of the submenu.
2.2.2 Line 2 =Value with name and unit
In thesecondlinethename, value and (when available) the unitofthedata are always
shown.
Uncalibrated values are identified for theuser with an asterisk ("∗") afterthe abbreviated
designation.
For useoutsideof applications subject to calibration, the devicecan alsobe obtained
without the identificationof uncalibrated values.
Example of uncalibrated values:
V b A
∗
1 2 3 4 5 6 7 . 8 m 3
Example of calibrated values:
V b 1 2 3 4 5 6 7 . 8 m 3

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2.3 Keypad
Key(s) Designation Effect
↓Down cursor
key
•Downwards movement within thelist:
Fromthe first value in the list movement is in the direction of
the last value orfromthe last value directly tothe first one.
↑Up cursor
key
•Upwards movement within thelist:
Fromthe last valuein the list movement is in the direction of
the firstvalue orfromthe first value directly to the last one.
→Pfeil rechts
•Movementto theright to a differentlist:
Fromthe first list movement is in the direction of the last list or
fromthe last list directly tothefirst one.
With similar lists (e.g.:Vb and Vm) skipping occurs tothe
appropriate value, otherwise tothe first value.
•Switchover to the second part of the value for values
displayed on twolines:
- Counter readings divided intopre- and post-decimalplaces.
- Dateand time(together one value) divided.
←Left cursor
key
•Movementto the left toa different list:
Fromthe last list movement is inthe direction of the first list or
fromthefirst list directly tothe last one. With similar lists (e.g.:
Vb and Vm) skipping occurs to the appropriate value,
otherwiseto the first valuein the adjacentlist.
ENTER Enter
Depends on the value displayed(Data class, →2.3.1)
•Activate the entry mode.
•Open the submenu.
•Update measurement (by pressingtwice).
ESC Escape •Return froma submenu to the entry point inthe higher
levelmain menu.
•Cancel entry (thevalue remains unchanged).
←+↑
Home / Clear
•Skipsto first valuein the list
•Updates a value in the entry mode
←+→
Help •Displays the address (reference code) ofthe value
In the entry mode the keys change their functions, see Chapter 2.3.1.

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2.3.1 Changing values
The methods of entering andchangingvalues differ depending on the value. These are
therefore subdivided intoso-called"dataclasses" (abbreviation:"DC").Values inthesame
data class are treated identicallyduringentry. Aprerequisite foran entry isthat the lock
assigned to the valueis open.
The followingdata classes (DC) are presentin the EK260:
DC
Type Entry, change using<ENTER>
1 Display test No change possible.
2 Function Triggers the function by entering "1".
3 Constant No change possible.
4 Measurement
The valueisupdated by pressing < ENTER >. twice.
5 Status Abbreviated text for the status messages can be called with <
ENTER >.
6 Initialisable
value After <
ENTER > value initialisation (standard setting) by pressing the
key combination <CLR> = ←+ ↑.
7 Discrete
value After <
ENTER > value change byselection froma list of possible values
with the keys ↑and ↓.
Value initialisation is possible with ←+ ↑.
8 Permanent
value After <
ENTER >, setting to any value within the validrangeispossible.
Selection of eachindividualcharacter to be changed with ←and →
and changing with ↑und ↓.
Value initialisation is possible with ←+ ↑.
9 Archive
heading Branching to the appropriate archive.
11 Combination Similar to "Permanent value" (see above)but masked entry, i.e.only
the character currently beingedited is visible, allothers are masked
out by a minus sign.
With a closed lock itisopened on entering thecorrect combination.
With an open lock, the combination is changed by the entry.
12 Counters As "Permanent value" (see above.).
15 Computation
counter No change possible.
16 Initialvalue No change possible,
sometimes branching to a submenu.
17 Archive value
No change possible.
19 Status
register Abbreviated text for the status messages can be called with <
ENTER >.
Initialisation is possiblewith the menu command Clr.
20 Flag No change possible.
21 Constant
valuewith 0 As "Permanent value" (DC = 8, seeabove), but the entry of "0" is always possibleindependent of the specifiedlimits.
If avalueisaccommodated inasubmenu, it cannot be changed independent of its data
class bythe keypad, sincethe key < ENTER > is then used for branchinginto the submenu.

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2.3.2 Entering sources
At anumber of points the entry ofa"source"isrequiredforparameterisation(e.g. SC.Qb
in the volume at base conditions list, SC.O1 inthe output list).
The address of thedesiredvalueisentered asthe source. Itcan befoundinthetablesat
the beginningof each list(Chapter 3.1 ff.).Incomparisonto the addresses shownthere
however, the following supplements must be given:
- Completion ofleadingzeroesso that a total offour numbers exist in front of the colon.
- If the address includes no underscore "_", then "_0" should be appended.
Example 1:
Source: 2:300 (Address of the volume at base conditions Vb,see tablein
3.1)
Enter: 0002:300_0 (Supplements printed in bold)
Example 2:
Source: 6:310_1 (Address of the temperature T, see tablein 3.4)
Enter: 0006:310_1 (Supplements printed in bold)
2.3.3 Entryerrors
Entry error messages are displayed after invalid entries viathe keypad.
Display: ----x--- where x= Error code according to the following table
Code
Description
1 The archive is empty, no values are available yet.
2 The archive valuecannotbe read.
The archive has possibly just been opened bythe interface for reading out.
4 Parameter cannot be changed(constant).
5 No authorisation for changing the value.
To change the value the appropriate lock must be opened.
6 Invalidvalue: The entered value isoutside thepermissiblelimits.
7 Incorrect combination: The entered combination (numericalcode) isincorrect and
the lock is not opened.
11 *
Entry not possible due to specialsetting or configuration
- Theentryof Vm and VmD in theencoder mode (Md.I1 = 5)is not possible.
- Md.I1 cannot be setto "5" with devices without encoder capability.
12 The entry of this source (address)is not permitted.
For the output source SC.O2, e.g. foroutput mode "8", the addresses of Qb, Qm, p
and Tare permissible,but no counter readings, etc.
13 The function can only by executed after the time (à3.8, Time) has beenset
(initialised) toits startvalue withthe key combinations ←+ ↑.
14 Gas analysis parameters for AGA-NX-19 do not match.
Example: For "H gas" (calorific value Ho.b over 11.055) the densityratiodr must
not exceed the maximumvalue of 0.691. (à3.5)
20 Value for the application-specificdisplay is notdefined.
The valueto be displayed can be defined by the user by entering the address. No
valueisdisplayed becausethis has not yet occurred.
* With an EK260 with a software version below2.10, this erroris displayed with code"8".

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2.4 Accessrights
The EK260 differentiates between four access parties and the calibration logbook. Each
access party has a lockand acorresponding code. Thelocks have the order of priority
Calibration lock – Manufacturer'slock1– Supplier'slock – Customer lock.
The access rights applyboth for keypad inputs as well as for accesses viathe opticalor
electrical(permanentlywired) interface. If thelock islocked, allattempts to set values are
answered with an appropriate error message (see Chap. 2.3.3).
Also the reading of values viathe interfaces isonlypossible, forreasons of data
protection, when at least one of the locks is open.
Normally, inaddition to theaccess rights assignedto each individualvalue, values can
also bechangedby the access parties with higher priority. Avalue, which forexamplehas
"S" ("Supplier")as access rights, can also be changed by calibration officialsand avalue
subject to the customer'slock can also be changed by suppliers.
Each party with write accessfor a value can also change the accessrights(write and read
access for each party) for thisvalue viatheinterface. Therights of parties with higher
priority can be changed.
2.4.1 Calibration lock
The calibration lock isused forsecuringparameters subject to calibrationregulations. This
includes allvalues which affectthe volume counting.
The calibrationlock isimplemented as apushbuttonlocatedwithinthe EK260housing
belowthe circuit board cover panel. It canbe secured with an adhesive seal(→5.8.1)
The parameters protectedundercalibration regulationsareeachidentified with"C"inthe
lists in the functionaldescription.
Depending on theapplications,values, which arenot includedas inputs subject to
calibration regulations, can be placed under the user lock via theWinPADS parameterising
software, for example to be able to use themas signalling inputs.
The calibration lock isopened bypressingthepushbutton (the symbol"P"flashes inthe
display)and isclosedagainwhen itispressed again (symbol "P" goes out).Closureis
also possible by deleting the value "St.PL" (→3.9) via the keypad orinterface. With the aid
of the"WinPADS" parameterisation software a timeinminutes canalsoset afterwhich the
calibration lock automatically closes.
In particular forapplications not subject to theGerman calibration regulations, the levelof
protection for allparameters can be changedon request. Forexample, parameters which
are as standard subject to the calibration lock can also be protected with the supplier's
lock.
1The manufacturer's lock is reservedfor Elsterand is notdescribed here.

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2.4.2 Calibration logbook
With the aid ofthe"Calibration logbook"according to PTB-A50.7 (→PLogB, page 42 )
someparameters relevant tocalibration regulations canbe changed alsowith the
calibration lock closed. Prerequisitesfor thisare:
- The calibration lock (see below)must be open.
- At least threeentries must be available in the calibration logbook.
The affected parameters (e.g. cp value,measurement period)are identified in the lists in
Chapter 3 with the access right "PL".
Adata row for the value isentered before andafter the change for each change to such a
parameter with the calibration lockclosed.
If the calibration logbook has been writtenfull,it can be cleared with the calibration lock
open using the command ClrPL (→page 43).
FIf the calibration lock isopened with thecalibration logbook full,itcanonlybeclosed
again afterclearing the calibration logbook.
2.4.3 Supplier's lock and customer's lock
The supplier'sandcustomer'slocks are usedfor securingalldatawhich is not subject to
calibration regulations, butwhich shouldalso not be changed without authorisation.
The parameters which are write-protectedunder the supplier orcustomer locks are each
identified with "S" or"K" inthe lists inthe functional description (→3).All values which are
shownwith aminus symbol"-" cannot be changed, because they represent, for example,
measurements or constants.
The lockscanbe openedbyentering acode(the"combination")under Cod.S or Cod.C
and closedby entering "0" for St.SL or St.CL (→page 54). With the aid ofthe
parameterising software "WinPADS" atime inminutes can also be set for eachlock under
the addresses 1:174 ...4:174afterwhich it automatically closes.
2.5 Formation ofthe list structure
The data display in the EK260 is structured ina tabular form. The individualcolumns in the
table each containassociated values.
Values identified with U and Arc are submenus or archives which you can viewby entering
<ENTER> and leaving againwith <ESC>. They eachhave,subordinateto the mainmenu,
a dedicatedlist structure, whichis writtenin the correspondinglist(→3).
The archives are subdivided intoanumber of data rows(alsotermed "data records" ).All
valuesin the same data roware saved ("archived") atthe same pointin time.
The maximumnumber of data rowsand the number of values inadatarowdepends on
the relevant archive. Within an archivethe number of values andtheir meaning are the
same for each data row.
Switching toanother archivedata rowoccurswith the keys ↑(for"younger"datarows)
and ↓(for "older"data rows). After the last data row,the firstfollowsagainand vice
versa.
Switching toanothervalue withinadata rowoccurs with the keys →and ←.After the
last value, the first follows againand vice versa.
Asummary of the standard mainmenu (list structure)isshownon the following pages. By
changing the value Menu (see page 87 ), aminimummainmenu can be selected.

Volume Conversion Device EK260
18 Elster GmbH
Volume atbase
conditions Actualvolume Pressure Temperature
To
"User" Std.V. Act.V. Press. Temp. To"Conv."
↔Vb ↔
Vm ↔ p ↔ T ↔
Vol. at base cond. Actual volume Pressure Temperature
Qb ↔
Qm p.LW T.LW
Flowat base cond. Actual flow Lower warn. limit Lower warn. limit
VbD ↔
VmD p.UW T.UW
Disturbance quant. Disturbance quant. Upper warn. limit Upper warn. limit
VbT ↔
VmT pMin TMin
Total quantity Total quantity Lower alarmlimit Lower alarmlimit
VbA ↔
VmA pMax TMax
Adjustable counter Adjustable counter Upper alarmlimit Upper alarmlimit
SC.Qb ↔
SC.Q MRL.p MRL.T
Source monitoring Source monitoring Meas. range bottom Meas. range bottom
QbUW ↔
QmUW MRU.p MRU.T
Upper warn. limit Upper warn. limit Meas. range top Meas. range top
QbLW ↔
QmLW p.F T.F
Lower warn. limit Lower warn. limit Substitute value Substitute value
VbMP ∆↔
VmMP ∆Pb Tb
Meas. per. counter Meas. per. counter Pressure at base
conditions Temp. at base conditions
VbMPmax S ↔
VmMPmax S
Md.p Md.T
Month'smaximum Month'smaximum Pressure mode Temperature mode
VbDy ∆↔
VmDy ∆Typ.p Typ.T
Dailycounter Dailycounter Press. sensor type Temp. sensor type
VbDy max S ↔
VmDy max S
SNp SNT
Month'smaximum Month'smaximum Sensor serialno. Sensor serialno.
Eq1p Eq1T
Equ. coefficient1 Equ. coefficient1
Eq2p Eq2T
Equ. coefficient2 Equ. coefficient2
Eq3p Eq3T
Equ. coefficient3 Equ. coefficient3
p1Adj T1Adj
Adjustment val.1 Adjustment val.1
p2Adj T2Adj
Adjustment val.2 Adjustment val.2
Prog Prog
Accept adjust. Accept adjust.
p.Amb T.Mes
Airpress. fixed val. Temp. meas.
p.Mes T.MP ∅
Pressure meas. Meas. period mean
p.Abs T.Mon max S
Abs.pressure meas. Month'smaximum
p.MP ∅T.Mon min S
Meas. period mean Month'sminimum
p.Mon max S
Month'smaximum
p.Mon min S
Month'sminimum

Volume Conversion Device EK260
Elster GmbH 19
Conversion Archive Status + Logbook
System
To
"Temp."
Conv. Archiv Status System To
"Serv."
↔C ↔
ArMo1 Arc
↔
SReg S
↔ Time ↔
Conversion factor Month archive1 Statusregister Date and timeK ArMo2 Arc
Stat S MdTim
Gaslawdev. factor Month archive2 Momentary status Daylightsaving: y /n
Ho.b ArMP Arc Clr MCyc
Calorific value Meas. per. archive Clear S. Reg Meas. cycletime
CO2 MPer Logb. Arc
OCyc
Carbon dioxide
content Meas. period Logbook Operating cycle time
H2 /N2 MP.Re AudTr Arc
Disp
(dependson Md.K) Rem.timemea. p. AuditTrail Disp. switch-off time
Rhob / dr FrMP PlogB Arc
Aut.V
(dependson Md.K) ArMP frozen Calibration Logb. Disp. changeover
time
K.F ClrPL SNo
K substitute value clear Cal. Logb. Serial number
Md.K Ta.Rg
K mode Ambienttemp.
Vers
Software version
Chk
Software checksum

Volume Conversion Device EK260
20 Elster GmbH
Service Inputs Outputs
To
"System"
Serv. Inputs Outp. To
"Ser.IO."
↔Bat.R ↔
Vo ↔ Md.O1 ↔
Remaining bat.life Orig. counterInput 1 Mode for Output 1
Bat.C cp.I1 SC.O1
Battery capacity Cp value Input1 Source Output1
St.SL Md.I1 cp.O1
Supplier's lock Mode for Input1 cp value Output1
Cod.S V1 SpO1
Supplier'scode Adj.counter Input 1 Statuspointer O1
St.CL q.max Md.O2
Customer'slock (onlyfor encoder
mode) Mode for Output 2
Cod.C cp.I2 SC.O2
Customer'scode Cp value Input2 Source Output2
St.PL Md.I2 cp.O2
Calibration lock Mode for Input2 cp value Output2
Contr V2 SpO2
Display contrast Adj.counter Input 2 Statuspointer O2
Adj.T St.I2 Aj1O2
Clock adjust. factor Statuson Input 2 HF adjustfactor 1
Sel.p MdMI2 Aj2O2
Select. press. sensor Mode monitorino I2 HF adjustfactor 2
Save SC.I2 f1.O2
Save alldata Source monitoring I2 Freq. for Aj1.O2
Clr.A L1.I2 f2.O2
Clear archives Limit 1forI2 Freq. for Aj2.O2
Clr.V L2.I2 Md.O3
Clear counters Limit 2forI2 Mode for Output 3
Clr.X SpI2 SC.O3
Initialise device Stat.pointer mon. I2 Source Output3
Bin.T St.I3 cp.O3
Temp. rawvalue Status on Input 3 cp value Output3
Bin.p MdMI3 SpO3
Pressure rawvalue Mode monitoring I3 Statuspointer O3
Addr SC.I3 Md.O4
User display address Source monitoring I3 Mode for Output 4
... L1.I3 SC.O4
User display Limit 1fürI3 Source Output4
WRp SpI3 cp.O4
Repair counter W Stat.pointer mon. I3 cp value Output4
VbRp SNM SpO4
Repair counter Vb Serial no. gas meter Statuspointer O4
VmRp
Repair counter Vm
Rep.
Revision mode
ArCal Arc
Frozen values
Frz
Freeze
-
Display test