Elster 83 462 140 Operating Manual And Installation Instructions Download Page 44

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Volume Conversion Device EK260

Elster GmbH

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

p Alarm Lim.

Alarm limits for pressure violated

St.8

SR.8

K-val. error

Compressibility cannot be computed

St.9

SR.9

Z-fact. err.

Compressibility factor cannot be computed

St.1

SR.1

I1 Alarm

Alarm on Input I1

St.5

SR.5

T Inp. Error

No usable input value for temperature

St.6

SR.6

p Inp. error

No usable input values for pressure

StSy

SRSy

Data restore

Data has been restored

St.1

SR.1

Outp.1 Error

Error on Output 1

St.2

SR.2

Outp.2 error

Error on Output 2

St.3

SR.3

Outp.3 error

Error on Output 3

St.4

SR.4

Outp.4 error

Error on Output 4

St.2

SR.2

I2 Pulse cmp

Error during pulse comparison on Input 2

St.1

SR.1

W Warn Lim.

Warning limits for power violated

St.2

SR.2

Vb Warn Lim.

Warning limits for flow at base cond. violated

St.4

SR.4

Vm Warn Lim. Warning limits for actual flow violated

St.6

SR.6

T Warn Lim.

Warning limits for temperature violated

St.7

SR.7

p Warn Lim.

Warning limits for pressure violated

StSy

SRSy

Soft. error

Software error

StSy

SRSy

Sett. error

Setting error

St.2

SR.2

I2 Warn.sig.

Warning signal on Input I2

St.3

SR.3

I3 Warn.sig.

Warning signal on Input I3

StSy

Batt. low

Battery service life below limit

StSy

Repair mode

Repair mode switched on

StSy

Clock n. set

Clock not set

St.1

Encoder err.

Encoder error

StSy

PLogb full

Calibration logbook full

StSy

online

Data transmission running

St.2

I2 Rep.sig.

Report signal on Input I2

St.3

I3 Rep.sig.

Report signal on Input I3

StSy

Remote clock

Remote clock setting started

St.1

Cal.lock o.

Calibration lock open

St.2

Man.lock o.

Manufacturer's lock is open

St.3

Supp.lock o.

Supplier's lock is open

St.4

Cust.lock o.

Customer's lock is open

StSy

Batt. operat

Battery operation

St.1

Call Win.1+

Extended Call acceptance time window 1

StSy

Dayl.Sav.Tim

The displayed time is daylight saving time

St.1

Call Win.1

Call acceptance time window 1 is active

St.2

Call Win.2

Call acceptance time window 2 is active

Alarm: Instead of the act. measurement, the substitute value is used; quantities are

counted in the disturbance volume counter.

Warning: The message is held in the status register until manually deleted.

Report: The message is not kept in the status register.

Summary of Contents for 83 462 140

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: ...l for suggestions for improvement and notification of any errors etc With regard to extended product liability the data and material characteristics given should only be taken as guide values and must always be individually checked and corrected where applicable This particularly applies where safety aspects must be taken into account You can obtain further support from the branch or representativ...

Page 3: ... 3 5 Volume corrector list 34 3 6 Archive list 37 3 6 1 Device numbers and channel numbers for WinView and WinLIS 40 3 6 2 Find function for checking the archive entries 40 3 7 Status list 41 3 7 1 List of status messages 44 3 7 2 Status register addresses 50 3 8 System list 51 3 9 Service list 53 3 10 Input list 58 3 11 Output list 64 3 11 1 Parameterising the HF output 69 3 11 2 Brief summary of...

Page 4: ...102 5 4 Terminal layout 103 5 5 Connection of the serial interface 105 5 5 1 Modem with control signals 105 5 5 2 Modem without control signals 106 5 5 3 Printer 106 5 5 4 Other devices with RS 232 interface 107 5 5 5 FE260 Function Expansion optionally with modem 107 5 5 6 FE230 Function Expansion 108 5 6 Connection of a low frequency pulse transmitter reed contacts 108 5 7 Connection of an encod...

Page 5: ...e EK260 Volume Conversion Device Volume Conversion Device is suitable for applications in Ex Zone 1 for gases in the temperature class T4 ignition temperature 135 C e g natural gas according to VDE 0170 see Appendix A 2 In this application it is essential to take note of the following information F Follow the regulations in the relevant standards in particular DIN EN 60079 14 VDE 0165 Part 1 and D...

Page 6: ...BL 50 Thermowell complete with M10 x 1 weld in sleeve 73 012 634 EBL 67 Thermowell complete with M10 x 1 weld in sleeve 73 014 456 EBL 160 Thermowell complete with G 3 4 weld in sleeve and sealing ring 73 012 100 EBL 250 Thermowell complete with G 3 4 weld in sleeve and sealing ring 73 012 100 Three way test tap 73 008 403 Shut off ball valve with Ermeto 6L test connection 73 016 166 Minimess test...

Page 7: ...it Operator interface Alphanumeric display with two lines of 16 characters A display list freely assignable by the user Programming via keypad possible Calibration switch separately sealed in the device Calibration logbook according to PTB A 50 7 for changing values relevant to calibration without the calibration lock Two user locks supplier s and customer s locks with numerical codes Access right...

Page 8: ...ective 2004 22 EG as flow recording device acc PTB A50 7 as high flow display device acc PTB A50 7 Ex approval for use in Ex Zone 1 according to EEx ib IIC T4 Monitoring functions Monitoring of signalling inputs Monitoring of any values with respect to programmable limits All monitoring can trigger appropriate reactions such as for example entries in the status register logbook or archives or sign...

Page 9: ... 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 Made in Ge rmany EK260 Submenu Instrom et ESC ENTER Arc Status Menu Prefix Typenschild Identification label ...

Page 10: ...nt panel 1 Prefix Type of computation The type of computation identifies so called initial values also termed capture values These are values which have been formed over a time 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 mean within the time r...

Page 11: ...d are retained here even after rectification of the cause of the error until they are manually cleared B Batteries flat The remaining battery service life 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 some parameters can now only be changed with the calibration lock open PLogB page 42 This display co...

Page 12: ...d to the entry point of the submenu 2 2 2 Line 2 Value with name and unit In the second line the name value and when available the unit of the data are always shown Uncalibrated values are identified for the user with an asterisk after the abbreviated designation For use outside of applications subject to calibration the device can also be obtained without the identification of uncalibrated values...

Page 13: ... to the second part of the value for values displayed on two lines Counter readings divided into pre and post decimal places Date and time together one value divided Left cursor key Movement to the left to a different list From the last list movement is in the direction of the first list or from the first list directly to the last one With similar lists e g Vb and Vm skipping occurs to the appropr...

Page 14: ...ing to any value within the valid range is possible Selection of each individual character 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 being edited is visible all others are masked out by a minus sign Wit...

Page 15: ...sibly just been opened by the 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 Invalid value The entered value is outside the permissible limits 7 Incorrect combination The entered combination numerical code is incorrect and the lock is not opened 11 Entry not possible due to special...

Page 16: ...ibration lock 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 identifie...

Page 17: ... they represent for example measurements or constants The locks can be opened by entering a code the combination under Cod S or Cod C and closed by entering 0 for St SL or St CL page 54 With the aid of the parameterising software WinPADS a time in minutes can also be set for each lock under the addresses 1 174 4 174 after which it automatically closes 2 5 Formation of the list structure The data d...

Page 18: ...ower 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 VbMP max S VmMP max S Md p Md T Month s maximum Month s maximum Pressure mode Temperature mode VbDy VmDy Typ p Typ T Daily counter Daily counter Press sensor type Temp sensor type VbDy max S VmDy max S SNp SNT Month s maximum Month...

Page 19: ...saving y n Ho b ArMP Arc Clr MCyc Calorific value Meas per archive Clear S Reg Meas cycle time CO2 MPer Logb Arc OCyc Carbon dioxide content Meas period Logbook Operating cycle time H2 N2 MP Re AudTr Arc Disp depends on Md K Rem time mea p Audit Trail Disp switch off time Rhob dr FrMP PlogB Arc Aut V depends on Md K ArMP frozen Calibration Logb Disp changeover time K F ClrPL SNo K substitute value...

Page 20: ...t factor Status on Input 2 HF adjust factor 1 Sel p MdMI2 Aj2O2 Select press sensor Mode monitorino I2 HF adjust factor 2 Save SC I2 f1 O2 Save all data Source monitoring I2 Freq for Aj1 O2 Clr A L1 I2 f2 O2 Clear archives Limit 1 for I2 Freq for Aj2 O2 Clr V L2 I2 Md O3 Clear counters Limit 2 for I2 Mode for Output 3 Clr X SpI2 SC O3 Initialise device Stat pointer mon I2 Source Output 3 Bin T St ...

Page 21: ...Reg Printer log Source monitoring Status register CSync S P UW VbMP max Clock set by rem trans Upper warning limit Month s maximum Vb GSM N P LW Date GSM network Lower warning limit Of month s max Vb GSM L WMP Time Reception field strength Meas per counter Of month s max Vb StM WMP max S Qb Modem status GSM Month s maximum Flow at base cond P Sta WDy Qm Response to PIN code Daily counter Actual fl...

Page 22: ...ccess Write access Indicates which lock must be opened to change the value 2 4 1 2 4 3 C Calibration lock PL Calibration logbook PTB logbook page 42 M Manufacturer s lock S Supplier s lock K Customer s lock If the letter is located in brackets the value can only be changed via the interface and not via the keypad Address Address of the value This is required especially for data transmission via th...

Page 23: ...Actual volume 3 2 C Conversion factor 3 5 Qb Flow at base conditions Momentary flow at base conditions standard flow rate Qb Qm ž C with Qm Actual flow page 25 C Conversion factor page 35 The measurement inaccuracy of Qb is maximum 2 to 11 depending on the boundary conditions quoted for Qm page 25 In the alarm state Qb is computed with the substitute values of the disturbed measurements VbD Vb dis...

Page 24: ...d indicates the progress of VbT see above The measurement period MPer can be set in the archive list 3 6 At the end of each measurement period VbMP is saved in the measurement period archive 3 6 VbMP can be monitored by appropriate programming of SC Qb and QbUW see above in order for example to issue a warning signal to a special contract customer when a limit is exceeded VbMP max Max measurement ...

Page 25: ...1 2 3 3 In the encoder mode to bring Vm to the gas meter reading and to clear VmD Md I1 3 10 can first be set to 0 and then set again to 5 Qm Actual flow rate Momentary actual flow actual flow rate The measurement inaccuracy of the displayed actual flow rate depends on whether a pulse transmitter or an encoder is connected With a connected pulse transmitter With a pulse interval of a maximum of 15...

Page 26: ...s and has between 6 and 9 pre decimal places depending on the cp value of the gas meter With a cp value of 1 VmT has one pre decimal place more which is incremented with each overflow of the gas meter VmA Vm adjustable Here as with VmT the total quantity i e disturbed and undisturbed volumes are counted In contrast to VmT VmA can however be changed manually This counter is typically set to the sam...

Page 27: ... exceeded VmMP max Max measurement period counter Vm in current month By entering ENTER you can branch to the submenu where the time stamp of the maximum is displayed The maxima of the last 15 months can be interrogated in the monthly archive 1 3 6 VmDy Daily counter Vm VmDy is restarted with 0 at the beginning of each day and indicates the progress of VmT see above As standard the start of day is...

Page 28: ...b Air pressure fixed value bar C 6 212_1 8 p Mes Pressure meas bar 6 211_1 4 p Abs Absolute pressure measurement bar 6 210_1 4 p MP Ø Measurement period mean pressure bar 19 160 16 p Mon max Month s maximum pressure bar 21 160 16 p Mon min Month s minimum pressure bar 22 160 16 Legends see page 22 p Press p is the pressure which is used for computing the conversion factor 3 5 and hence the volume ...

Page 29: ...rements p F Pressure substitute value If the measured pressure p Abs is outside the alarm limits pMin and pMax see below p F is used as pressure p for correction p p F pb Pressure at base conditions The pressure at base conditions is used for computing the conversion factor 3 5 and hence the volume at base conditions Md p Pressure mode With Md p 1 the measured pressure p Abs see below is used for ...

Page 30: ...asurement p Mes see below until the displayed value is stable Approx 0 4 ž pMax and approx 0 9 ž pMax should be selected as adjustment values p Amb Air pressure fixed value p Mes Pressure measurement p Abs Absolute pressure measurement p Abs is the sum of p Amb and p Mes p Abs p Amb p Mes 0 should be entered when using an absolute pressure sentors and the ambient pressure when using a gauge pressu...

Page 31: ...Prog Accept temperature adjustment C 5 259 2 T Mes Temperature measurement C 5 210_1 4 T MP Ø Measurement period mean temperature C 15 160 16 T Mon max Month s maximum temperature C 17 160 16 T Mon min Month s minimum temperature C 18 160 16 Legends see page 22 T Temperature T is the temperature which is used for computing the conversion factor 3 5 and hence the volume at base conditions 3 1 In di...

Page 32: ... They have no effect on the measurements T F Temperature substitute value If the measured temperature T Mes is outside the alarm limits TMin and TMax see below T F is used as temperature T for conversion T T F Tb Temperature at base conditions The temperature at base conditions is used for computing the conversion factor 3 5 and hence the volume at base conditions Md T Temperature mode With Md T 1...

Page 33: ...t one minute each time before entering the adjustment or press ENTER a number of times during the display of the temperature measurement T Mes see below until the displayed value is stable To optimise the accuracy the adjustment values should be located as close as possible to the measurement range limits MRL T and MRU T e g 10 C and 60 C T Mes Temperature measurement If the measured temperature T...

Page 34: ... K 2 AD Designation value Unit Access Address DC C Conversion factor 5 310 4 K Inverted compressibility factor ratio 8 310 4 pbX Pressure at base conditions for gas analysis bar S 7 314_1 8 TbX Temperature at base cond for gas analysis C S 6 314_1 8 Ho b Calorific value kWh m3 S 10 311_1 8 CO2 Carbon dioxide content S 11 311 8 N2 Nitrogen content S 14 311 8 dr Density ratio S 15 311 8 K F K value ...

Page 35: ...ess DC C Conversion factor 5 310 4 K Inverted compressibility factor ratio 8 310 4 CO2 Carbon dioxide content S 11 314 8 N2 Nitrogen content S 14 314 8 dr Density ratio S 15 314 8 K F K value substitute value S 8 311 8 Md K K value mode C 8 317 7 f Constant K value Md K 0 AD Designation value Unit Access Address DC C Conversion factor 5 310 4 Ho b Calorific value kWh m3 S 10 311_1 8 K F K value su...

Page 36: ...cording to pb and Tb 0 and 3 4 With each change of pb or Tb pbX resp TbX is automatically set to the same value For different values pbX or TbX must be entered after pb resp Tb Ho b Calorific value CO2 Carbon dioxide content H2 Hydrogen content only for Md K 1 Rhob Density gas at base conditions only for Md K 1 N2 Nitrogen content only for Md K 2 dr Density ratio only for Md K 2 Depending on the s...

Page 37: ...ArMP Measurement period archive 3 A30 8 MPer Measurement period Minutes PL 4 150 8 MP Re Remaining time of measurement period Minutes 4 15A 15 FrMP Freeze measurement period S 3 A50 2 Legends see page 22 ArMo1 Monthly archive 1 Entry point for the first monthly archive in which counter readings and consumption maxima from the last 15 months are saved The day boundary month boundary 06 00 hrs can b...

Page 38: ... Mon min Time Stat Temperature mean Month s maximum Time point T max Status for T max Month s minimum Time point T min Status for T min To ABNo K Mon Ø C Mon Ø St 7 St 6 St 8 St 5 Check K value mean C factor mean Status 7 incl p Status 6 incl T Status 8 incl K Status 5 incl C Checksum To ABNo ArMP Measurement period archive Entry point for the measurement period archive where counter readings and ...

Page 39: ...T 3rd counter in the archive 3 0C02 4 0300 Vm 4th counter in the archive 3 0C03 4 0302 VmT MPer Measurement period With the measurement period that can be set here all values related to the measurement period are formed These are VbMP 3 1 VmMP 3 2 p MP Ø 3 3 T MP Ø 3 4 as well as values present in the measurement period archive ArMP see above MPer must be an integer multiple of the operating cycle...

Page 40: ...mperature 7 p Gas pressure 8 K K value Examples Device number 1438004 Channel number 3 Vm Actual volume undisturbed Device number 1479321 Channel number 7 p Gas pressure 3 6 2 Find function for checking the archive entries The measurement period archive comprises many thousands of entries The device has a Find function for archive entries in order to be able to display single values from this quan...

Page 41: ...in this list with the command Clr Only alarms and warnings i e messages with numbers in the range from 1 to 8 are displayed in status registers Reports are not entered because they identify states which are not problematical or may even be intended e g Daylight saving time Calibration lock open or Data transfer running SReg and Stat initially show all existing messages as numbers They can be recal...

Page 42: ...alibration logbook PTB logbook With the aid of the Calibration logbook according to PTB A 50 7 some parameters relevant to calibration regulations can be changed also with the calibration lock closed Prerequisites for this are The supplier s lock see below must be open At least three free entries must be available in the calibration logbook The affected parameters e g cp value measurement period a...

Page 43: ...orage time Addr of changed value Old value New value St PL St ML St SL St CL Check Calibration lock Manufacturer s lock Supplier s lock Customer s lock Checksum To ABNo ClrPL Clear calibration logbook The calibration logbook PlogB can be cleared by entering 1 with the calibration lock open ...

Page 44: ...olated 6 St 7 SR 7 p Warn Lim Warning limits for pressure violated 7 StSy SRSy Soft error Software error 8 StSy SRSy Sett error Setting error 8 St 2 SR 2 I2 Warn sig Warning signal on Input I2 Warning 2 8 St 3 SR 3 I3 Warn sig Warning signal on Input I3 9 StSy Batt low Battery service life below limit 10 StSy Repair mode Repair mode switched on 11 StSy Clock n set Clock not set 11 St 1 Encoder err...

Page 45: ...annot cause any alarm messages nor disturbance quantities p Alarm Lim Alarm limits for pressure violated Message 1 in St 7 The measured gas pressure p Abs is located outside of the set alarm limits pMin pMax 3 3 While ever this message is present in St 7 the substitute pressure p F 3 3 is used for volume conversion and disturbance quantities are counted for Vb and Vm 3 1 3 2 The alarm limits can b...

Page 46: ...ile memory EEPROM The retrieved counter readings and the clock values are possibly out of date If a manual data backup was carried out with the command Save before the voltage failure 3 9 the counter readings and time correspond to the state at the time of the data backup Without manual data backup the counter readings and time are retrieved with the state at the end of the last day before the vol...

Page 47: ...lume at base conditions VbMP of the started measurement period is monitored Further explanation 3 2 SC Q T Warn Lim Warning limits for temperature violated Message 6 in St 6 The measured temperature T Mes is located outside of the set warning limits T LW T UW 3 4 p Warn Lim Warning limits for pressure violated Message 6 in St 7 The measured gas pressure p Mes is located outside of the set warning ...

Page 48: ...t the last interrogation in the last measurement cycle the connected gas meter encoder supplied no data or faulty data If the encoder does not send any fault free counter reading within 20 seconds the message I1 Alarm page 45 is also produced and disturbance counting is switched on If a measurement cycle MCyc page 51 of 20 seconds is set in the case of a fault the messages Encoder err and I1 Alarm...

Page 49: ...e service is not correct On calling the time service it was engaged for a long period The deviation of the device clock from the clock of the time service is greater than DevCS à 3 12 2 Further details on the function Automatic setting of the clock by remote transmission à 3 12 2 Cal lock o Calibration lock open Message 14 in St 1 Man lock o Manufacturer s lock is open Message 14 in St 2 Supp lock...

Page 50: ...s active Message 16 in St 2 The EK260 provides two time windows within which a modem connected to the serial interface accepts calls for data interrogation Outside of these time windows calls are ignored so that for example a person located in the station can be called via a telephone connected to the same telephone line The message indicates that the time window 1 3 12 Interface list programmed w...

Page 51: ... is updated in synchronism with the operating cycle OCyc see below or after key operation MdTim Daylight saving yes no 0 Automatic changeover between summer and winter time OFF 1 Automatic changeover between summer and winter time Summer time begins on the last Sunday in March at 2 00 hrs and ends on the last Sunday in October at 2 00 hrs 2 Switchover at set times The start and finish of daylight ...

Page 52: ...eries the display switches off after key operation once the set time has expired The setting 0 signifies that the display is always switched on With settings of 0 or greater than 10 minutes the battery service life is reduced Aut V Time to changeover to standard display The display automatically changes over to the standard display once the time set here has expired without any key operation The s...

Page 53: ...5 12 Rep Repair mode on off C 1 173 7 ArCal Frozen values 6 A30 8 Frz Freeze S 6 A50 2 Display test 1 1F7 1 Legends see page 22 Bat R Remaining battery service life The calculation of the remaining battery service life occurs in dependence of the consumed capacity which is measured and a consumption expected for the future which gives the remaining battery service life Therefore for applications w...

Page 54: ...ly about 80 of the capacity quoted by the manufacturer Since two batteries are connected in series in each case the capacity of one battery must be entered per battery pack 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 St SL Supplier s lock status close Cod S Supplier ...

Page 55: ...libration lock Either by pressing the pushbutton again or by clearing St PL via the interface or keypad in the entry mode 2 3 1 Data Class 6 Contr Display contrast Setting the contrast of the display Changes only become effective after confirmation of entry with ENTER Valid range 0 bis 255 Adj T Clock adjustment factor Adj T is the deviation of the running accuracy of the clock at room temperature...

Page 56: ...th the key combinations Otherwise an attempt to execute Clr X causes the error message 13 to appear on the display Bin T Temperature binary value Bin p Pressure binary value These are the raw values measured directly on the respective input and which are converted to the corresponding measurement quantities with the adjustments made 3 3 3 4 Addr Address for user display User display value under th...

Page 57: ...rchive data row has the following entries whereby the abbreviated designations generally flash for counter increments ABNo Time Vb Vb Vm Vm To Check Block number Storage time point Volume at base cond Counter increment Actual volume Counter increment VbRp VbRp VmRp VmRp p T Repair counter Counter increment Repair counter Counter increment Press Temperature K C Qb Qm Check Gas law dev factor Conver...

Page 58: ...er S 1 222 8 Legends see page 22 Vo 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 Vo is formed differently depending on the setting of Md I1 see above Md I1 1 Input I1 is the pulse input The pulses arriving on Input...

Page 59: ...t 1 The volume counted on Input 1 is summed in V1 V1 counts independent of the alarm conditions The progress therefore corresponds to that of VmT and VmA 3 2 V1 is an adjustable counter like VmA i e it is subject to the supplier s lock and can therefore be set to any reading without opening the calibration lock V1 is the gas volume measured on Input 1 The increase in volume is directly accepted in...

Page 60: ...nalling St I2 1 Input signal is active signalling MdMI2 Mode for monitoring I2 SC I2 Source for monitoring I2 L1 I2 Limit 1 I2 L1 I2 Limit 2 I2 SpI2 Status pointer for monitoring I2 F For MdMI2 only enter one of the values described here 2 3 5 or 17 Depending on the system and after entering ENTER other values are offered which are however not meaningfully applicable here Depending on the applicat...

Page 61: ...pulses L2 I2 in 4000 pulses L1 I2 ž L2 I2 the message I2 Pulse cmp is displayed in the status Stat b I2 is a status input Md I2 2 Input 2 is an active warning input input for warning signal Value Setting Comment Md I2 2 Input mode status input MdMI2 2 Monitoring mode Signal when SC I2 L1 I2 SC I2 02 228_0 St I2 Status on Input 2 L1 I2 1 Comparative value L2 I2 Not used here SpI2 0 05_02 1 1 I2 War...

Page 62: ...2 1 1 I2 Rep sig Pointer to message 13 in status 2 report Input 2 is time synchronised input Value Setting Comment Md I2 2 Input mode status input MdMI2 5 Monitoring mode Time synchronised input SC I2 02 228_0 St I2 Status on Input 2 L1 I2 1 Comparative value L2 I2 Not used here SpI2 0 13_02 1 1 I2 Rep sig Pointer to message 13 in status 2 report Time synchronisation can occur under the following ...

Page 63: ...tion Value Setting Comment MdMI3 3 Monitoring mode Signal when SC I3 L1 I3 SC I3 03 228_0 St I3 Status on Input 3 L1 I3 1 Comparative value SpI3 0 05_02 1 1 I3 Warn sig Pointer to message 8 in status 3 Input 3 is an active reporting input input for report signal Value Setting Comment MdMI3 2 Monitoring mode Signal when SC I3 L1 I3 SC I3 03 228_0 St I3 Status on Input 3 L1 I3 1 Comparative value Sp...

Page 64: ...ue 1 m3 S 1 611 8 SpO1 Status pointer S 1 607 8 Md O2 Mode for Output 2 S 2 605 7 SC O2 Source S 2 606 8 cp O2 cp value 1 m3 S 2 611 8 SpO2 Status pointer S 2 607 8 Aj1O2 HF adjust factor 1 see 1 S 2 622 8 Aj2O2 HF adjust factor 2 see 1 S 2 623 8 f1 O2 Frequency for Aj1O2 Hz S 2 624 8 f2 O2 Frequency for Aj2O2 Hz S 2 625 8 Md O3 Mode for Output 3 S 3 605 7 SC O3 Source S 3 606 8 cp O3 cp value 1 m...

Page 65: ...ts 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 In the following table apart from the setting possibilities for Md A it is shown for each setting whether SC A cp A or SpA must...

Page 66: ...tput via the serial interface under the addresses 1 617 to 4 617 period duration or 1 618 to 4 618 pulse duration as a multiple of 125 ms The period duration must always be greater than the pulse duration for mode 3 or 7 time synchronised output By programming SC A according to the following table you can set at which time points a time synchronised pulse is output SC A Pulse is output 0001 143_0 ...

Page 67: ...d to set which status messages an output parameterised as status or event output represents The display of the status pointer occurs as a short text according to Chapter 3 7 with a following arrow pointing upwards e g I3 Warn sig Here the symbol indicates that the signal arrives For entry a special numerical display is implemented e g 08_03 1 1 because a text entry on the device would only be poss...

Page 68: ... the messages of all statuses this setting means that the output is switched while ever the message mm is present in any of the statuses StSy or St 1 to St 9 SpA mm_01 2 1 Example 0 08_01 2 1 signifies Message 8 in any status StSy or St 1 to St 9 After the entry the following is displayed Message 8 d Message group in a status St 1 to St 9 SpA 1 mm_0s 1 1 where s 1 to 9 for St 1 to St 9 Example 1 0...

Page 69: ...and Qmax The unit for the HF adjustment values Aj1O2 and Aj2O2 is the same as the unit for the corresponding quantity defined with SC O2 it is therefore automatically changed over appropriately when SC O2 changes If a frequency outside of the range selected with f1 O2 and f2 O2 is to be output then error message Outp 1 Error appears in the status à page 46 3 11 1 Parameterising the HF output The H...

Page 70: ...tus StSy SpA 0 mm_02 2 1 A message in the total status Stat SpA 0 mm_01 2 1 Message group in a status St 1 to St 9 SpA 1 mm_0s 1 1 Message group in the system status StSy SpA 1 mm_02 2 1 Message group in the total status Stat SpA 1 mm_01 2 1 s Time synchronised output logic active or inactive Md A 3 or 7 Setting of the time point At the start of each month at 0 hrs SC A 0001 143_0 At the start of ...

Page 71: ...ort Message 1 2 742 20 Resp2 Response to Short Message 2 2 74A 20 SEND Send short message SMS S 2 734 2 Bd S1 Baud rate Interface 1 Bd S 1 709 7 CW1 S Call acceptance window 1 start S 5 150 8 CW1 E Call acceptance window 1 end S 5 158 8 CW2 S Call acceptance window 2 start or M CW1 Status message Call acceptance window 1 S 6 150 8 CW2 E Call acceptance window 2 end or M onl Status message FE230 on...

Page 72: ...rate selection Yes Yes Yes No Suitable for the connection of a commercially available modem For GSM modems Mode 2 can also be used but Mode 7 is more suitable see below because then monitoring of the link to the GSM network also occurs Num T see below is effective 3 Modem with responses Modem control RS 232 control lines Battery operation Baud rate selection Yes No No No The EK260 controls the mod...

Page 73: ...tion Baud rate selection Yes Yes Yes No Suitable for the connection of a commercially available GSM modem This mode largely corresponds to Mode 2 see above but checks the EK260 daily shortly after midnight for whether the modem is still logged in with the GSM network and if required establishes the connection Num T see below is effective 9 Without control lines battery mode Modem control RS232 con...

Page 74: ...on Baud rate selection No Yes Yes Yes Md S2 17 corresponds to Md S2 1 see above but also makes available the GSM network parameters such as Reception Level and Network Operator With this setting the battery lifetime will be greatly reduced in some applications as e g for FE230 operation But it is possible to set Md S2 17 for several minutes during the installation of the FE230 to check the GSM lev...

Page 75: ...set to 19200 TypS2 Type Interface 2 The interface type can be set here 1 RS 232 e g for connecting a commercially available modem 2 RS 485 e g for connecting an FE260 function expansion In the setting 2 RS 485 two separate wires must be connected each for transmitted and received data four wire connection 5 5 5 Modb Modbus parameters Here the submenu for the Modbus parameters is called with ENTER ...

Page 76: ...uring the display of GSM L Bd S1 Baud rate Interface 1 Here the baud rate speed for the data transmission between 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 transmission then this is probably due to the readout lead Then set Bd S1 to 4800 Bd to give a slower data transmission Depending on the system Bd S1 can...

Page 77: ...ll acceptance window 2 end or M onl Status message Data transmission running via FE230 With these values two different time windows can be set within which a data transmission is possible each day via the internal permanently wired interface The EK260 does not respond outside of this time window With the WinPADS parameterisation software the repeat cycle of the time windows can be set to daily wee...

Page 78: ... 56 1 006 1 0004 0 9351 13 11 09 10 36 204870 9273578 31 6 31 3 14 00 1 006 1 0004 0 9351 2 11 09 10 30 204870 9273578 31 3 31 0 14 00 1 007 1 0004 0 9352 2 11 09 10 35 204870 9273578 31 4 31 1 14 00 1 007 1 0004 0 9352 2 11 09 10 40 204870 9273578 32 7 32 4 14 00 1 007 1 0004 0 9352 2 11 09 10 43 204872 9273581 37 8 37 5 11 50 1 007 1 0004 0 9352 0 11 09 10 45 204875 9273583 31 3 31 0 11 70 1 007...

Page 79: ...e printout of a line prefixed by The following entries are practicable 1 02_01 2 0 Any message 1 or 2 arises or goes i e an alarm message arises or goes 1 08_01 2 0 Any message 1 or 8 arises or goes i e an alarm or a warning message arises or goes PL V1 Printer log 3rd column PL V2 Printer log 4th column Here you can choose which counter readings are printed out in columns 3 and 4 of the lines Cho...

Page 80: ...f again If the function is active the EK260 sets the message Remote clock in the system status StSy à 49 with each call and deletes it again thereafter If the clock setting does not function e g because the telephone number is not correct or no modem ready for operation is connected the message 14 is retained until the beginning of the cycle in which the next time for setting the clock is located ...

Page 81: ...ycle Format for TimCS 0001 140_3 daily hh mm 0001 140_4 weekly WW hh mm ss 0001 140_5 monthly DD hh mm ss WW weekday So Mo Tu DD Day in the month 01 02 31 hh hour mm minutes ss seconds TNoCS Telephone number for setting the clock by remote data transmission Telephone number of the telephone time service As standard the telephone number of the time service of the PTB standards institute in Germany ...

Page 82: ...t Ser IO 3 12 Md S2 must be set to 13 and DF S2 to 0 or 1 depending on the set transmission mode MBTrM MBDir Data direction 0 The most significant word in the first register 1 The least significant word in the first register affects only values with binary formats MBTrM Transmission mode 0 ASCII mode The content of each register is transmitted as four ASCII coded hexadecimal figures DF S2 must be ...

Page 83: ...part MS word LS word Bit 31 Bit 30 23 Bit 22 16 Bit 15 0 32 Exponential 2 Sign Exponent Mantissa upper part Mantissa lower part MS word LS word 9 Counter 3 Predec point upper part Predec point lower part Decimal places b Decimal formats MS word LS word BCD counter 4 Predec places Decimal places MS word LS word 17 BCD time stamp 4 CCYY MMDD hhmm ss00 MS word LS word 16 BCD no 3 12 digits 12 BCD tim...

Page 84: ...ressure measurement 32 bar 6 210_1 307 p Mes Pressure measurement 32 bar 6 211_1 309 T Mes Temperature measurement 32 C 5 210_1 311 C Conversion factor 32 5 310 313 K Inverted compressibility factor ratio 32 8 310 315 p F Pressure substitute value 32 bar 7 311_1 317 T F Temperature substitute value in C 32 C 6 311_1 319 N2 Nitrogen content 32 14 314 321 H2 Hydrogen content 32 12 314 323 CO2 Carbon...

Page 85: ... warning limit for P kW K 15 158 8 P LW Lower warning limit for P kW K 15 150 8 WMP Measurement period counter W kWh 27 160 16 WMP max Max meas per count W current month kWh 29 160 16 WDy Daily counter W kWh 28 160 16 WDy max Max daily count W current month kWh 30 160 16 Legends see page 22 W Energy The energy is calculated according to the following formula from the volume at base conditions and ...

Page 86: ...ogbook 3 7 or activation of a signalling output 3 11 With SC W you can set which value is to be monitored SC W Value to be monitored 0001 310_0 P Power 0027 160_0 WMP Meas period counter W 0028 160_0 WDy Daily counter W For further details on entering a source for SC Qb See Chap 2 3 2 WMP Meas period counter W WMP is restarted at 0 at the beginning of each measurement period 3 6 and indicates the ...

Page 87: ...Selection for display menu L 1 1A1 7 Legends see page 22 With exception of the last value this list is application specific i e the user can himself set which values in this list are displayed Ex works these are the above mentioned values which are also all displayed in another list and described in the corresponding chapters Since the status register SReg in this list is not assigned to any subme...

Page 88: ... extended to 2 0 bar absolute pressure or 1 0 bar overpressure if the temperature is always higher than 5 C for gases with Ho b 11 5 kWh m 12 C for gases with Ho b 11 5 kWh m Wider pressure and temperature ranges can be set for the gas composition present at a measuring point if compliance with the error limit is proven by calculations This also applies to other fuel gases e g town gas For the cal...

Page 89: ... as well as the present gas composition that no deviations of more than 0 1 occur The principles of the calculation and the calculation results at the limits of the measurement range must be recorded in the operational and rating data book page Proof of measures implemented unless the calculation method S Gerg 88 is generally accepted for the present application due to a national regulation AGA8 G...

Page 90: ...e at base conditions list Chapter 3 1 page 23 VmMP max and VmDy max in the Actual volume volume at measurement conditions list Chapter 3 2 page 25 At the end of each month the arising maxima of the month just finished are written to the latest data record of monthly archive 1 Along with this the oldest data record is then deleted so that monthly archive 1 always includes exactly 15 months The end ...

Page 91: ...3 6 ArMP Find function for checking the archive entries à 3 6 2 Display of the set measurement period MPer and the remaining time in the current measurement period MP Re à 3 6 Labelling of uncalibrated values1 by an asterisk after the abbreviated designation Checking each individual archive row using a checksum CRC If a data error has occurred in an archive row each valu e affected flashes in the ...

Page 92: ...tual and volume at base conditionss 3 2 3 1 Also if with disturbances e g cable breakage or low batteries in the EK260 no data transmission is possible over a longer time period and so no actual volume can be acquired no quantities are lost because the EK260 immediately reads the present gas meter reading once the disturbance is rectified However since no assignment to the various measured values ...

Page 93: ... Part 1 and the operating conditions quoted in these instructions are fulfilled In particular they are Ambient temperature according to Chapter B 1 Batteries according to Chapter B 2 Correct wiring in particular no active outputs switching one against the other Voltage of an external power supply according to Chapter B 3 has a maximum of 9 9 V manufacturer s rating of the connected device Switchin...

Page 94: ...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 Modem control through the EK260 via the data lines no automatic call acceptance by the modem or 5 automatic call acceptance by the modem no modem control by the EK260 or 15 GSM modem automatic call acceptance no modem ...

Page 95: ...age 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 Operation without control lines and without modem control TypS2 2 RS485 Bd S2 19200 19200 Bd without using the baud rate selection 4 7 5 FE230 Function Expa...

Page 96: ...on with control line TypS2 1 RS232 Bd S2 19200 19200 Bd without using baud rate selection 1 oder 300 300 Bd with using baud rate selection procedure as for the optical interface 2 DF S2 Data format accord to the connected device DF S2 page 75 4 7 8 Modbus protocol F For this application the EK260 needs external power supply F For connection see Chap 5 5 4 page 107 Settings under the interface list...

Page 97: ...0 Standard output data records for process data three minute values Process data can be synchronously temporarily stored in short cycles e g 3 minutes and interrogated over the interface To output these data records the mode Data readout in Mode C according to IEC 62056 211 is used In order to obtain practicable values buffer storage of the process data has to be activated In this respect the valu...

Page 98: ... 01CD 2 0100 System status 15 1CD 13 13 15 Setting the data record content You can freely set the content of the process data with the aid of the WinPADS Parameterising Software The addresses 1 01CF 15 01CF are used for setting values Archiving the data records For tracing e g after a mains failure the last 200 process data records can be saved in Archive 10 Archiving starts once the buffer storag...

Page 99: ...et or on the wall 2 Connection of the pulse transmitter or encoder pressure line and insertion of the temperature sensor in the thermowell 3 If required connection of the following equipment to the power supply input serial interface or pulse signal outputs F If the EK260 is used in a hazardous area Zone 1 then only intrinsically safe electrical circuits of certificated associated operating equipm...

Page 100: ...Mounting 5 2 1 Wall mounting Four holes are provided in the housing for wall mounting 110 00mm 140 00mm Fig 1 Drilling template for wall mounting For a selection of suitable mounting screws see Fig 2 19mm 6 6mm Fig 2 Cross section of the mounting holes ...

Page 101: ... S1 Installation EK260 on Meter Head S1 2x Zylinderschrauben M5x40 2x machine screws M5x40 4x Zylinderschrauben M5x10 4x machine screws M5x10 4x Flachmuttern M5 2x flat nuts M5 1 3 5 4 2 2 4 2x Vierkantmuttern M5 2x square nuts M5 Zählwerkskopf S1 Meter Head S1 Fig 3 Mounting the EK260 on an S1 meter head ...

Page 102: ...be earthed at both ends to prevent interference due to high frequency electromagnetic fields The screen must be connected all round complete and flat The EK260 has special EMC cable glands for this purpose With correct connection of the cable screens and correct laying of the cables effects due to circulation should not be expected If however interference due to earthing points with potential diff...

Page 103: ...o cables are pinched as the cover is closed Housing cover Internal view X105 X103 X101 X104 X102 AE1 DE1 DE2 DE3 DA1 DA2 X40 X9 X41 X10 RD DA3 T T DA4 TDRS CS R R Uext RiGnd Fig 4 Terminal layout Inputs AE1 Not used provided for future expansion DE1 Digital Input 1 for pulse transmitter or encoder DE2 Digital Input 2 DE3 Digital Input 3 Outputs DA1 Digital Output 1 DA2 Digital Output 2 DA3 Digital...

Page 104: ... input Gnd Signal ground External power supply Uext External power supply Pressure and temperature sensors X102 Temperature sensor Pt500 two wire X103 X102 Temperature sensor Pt500 three wire X104 Pressure sensor CT30 three wire X101 Not used X105 Not used provided for future expansion Batteries X9 X40 Battery Pack 1 X10 X41 Battery Pack 2 The type for the permanently connected serial interface ca...

Page 105: ...er No 73016923 2 m or 73017268 10 m A capacitor with a capacity of 1 µF labelled 105 is enclosed with the EK260 in the accessories bag When using a commercially available modem it should be connected as shown to prevent possible interference due to the modem When using the modem EM260 from Elster GmbH no capacitor is required One capacitor lead is connected to the terminal AE and the other lead is...

Page 106: ...ontrol signals For this application the EK260 needs an external power supply Connection diagram EK260 Modem TD T TxD RS T open RD R RxD CS R open Ri open Gnd Gnd 5 5 3 Printer Connection diagram EK260 Printer TD T Data input RS T open RD R open CS R open Ri open Gnd Gnd ...

Page 107: ...h modem For this application the EK260 also needs the external power supply through the FE260 i e the Uext and terminals must be connected see below No data transmission can take place during a power failure Connection diagram EK260 FE260 TD T T RS T T RD R R CS R R Ri open Gnd open Uext U 1 The connected device must switch the signal used to active before the start of the communication and inacti...

Page 108: ...e transmitter must always be connected to the terminal DE1 In addition a second pulse transmitter can be connected to terminal DE2 e g for a pulse comparison page 61 Any polarity can be chosen Connection diagram Pulse transmitter 1 DE1 When using the lead available from Elster GmbH with the order no 73017093 about 70 cm long the following wires should be connected Terminal DE1 Brown and white Term...

Page 109: ...ot important Set Md I1 3 10 to 5 with the calibration lock open Check the display of Vo 3 10 After 20 seconds at the latest after entering 5 for Md I1 the EK260 displays the gas meter reading as Vo 5 8 Seals 1 Setting the parameters To change values subject to calibration regulations e g cp value the adhesive labels on the calibration lock in the device must be opened up and the button pressed sta...

Page 110: ...ng Leiterkarten Abdeckung Plombierpunkte zur Sicherung des Eichschalters b Housing cover front view standard seals Made in Ge rmany EK260 Submenu Instrom et ESC ENTER Arc Status Menu Prefix Typenschild Plombierpunkt zur Sicherung des Typenschildes Terminal covers PCB cover Sealing points for securing the calibration switch Sealing points for securing the PCB cover Sealing points for securing the t...

Page 111: ...ny EK260 Submenu Instromet ESC ENTER Arc Status Menu Prefix Typenschild Kreuzlochschrauben für Drahtplombe zur Sicherung des Gerätes Drahtplombe Plombierpunkt zur Sicherung des Typenschildes Identification label Possible sealing point for securing the identification label Wire seal Capstan headed screws for wire seal for securing the device ...

Page 112: ...mperature sensor of variable length standard thermowell Kreuzloch schraube Plombierhülse Fühlertasche Verschraubung zur Fixierung des Temperaturauf nehmers Temperatur aufnehmer Drahtplombe b Temperature sensor of variable length older Elster thermowells Drahtplombe Drahtplombe Kreuzloch schraube Fühlertasche Temperatur aufnehmer Adapter zur Plombierung Plombierhülse Wire seal Wire seal Wire seal C...

Page 113: ...ombierhülse b External fitting Typenkennzeichnung als Klebeschild oder gelasert Anschlusskabel Plombierpunkt zur Sicherung des Typenschildes Druckaufnehmer Druck Anschluss Drahtplombe Plombierhülse Wire seal Wire seal Sealing sleeve Sealing sleeve Pressure connector Pressure sensor Pressure connector Pressure sensor Connecting cable Sealing point for securing the identification label Type identifi...

Page 114: ... Bat R and Bat C F Battery replacement can be carried out without the presence of a calibration official because the housing itself is not sealed F During battery replacement at least two batteries should always remain connected Before the old batteries are removed the new batteries must be connected A total of four plugs are provided for this F EK260 measurements may be lost due to careless proce...

Page 115: ...ttery replacement and the clock may be slow after battery replacement 5 Insert the new batteries and connect to the free plugs in parallel to the old battery pack both are electrically isolated The plugs are polarised against incorrect connection 6 Pull off the old batteries from the plugs and remove 7 Reclose the device make sure that the cable is not pinched 8 The initial capacity must be re ent...

Page 116: ...ive atmospheres EN50014 1997 A1 A2 General requirements EN50020 2002 Intrinsic safety i b Volume conversion and electromagnetic compatibility EN12405 1 2005 A1 2006 04 Volume conversion electro magnetic compatibility interference immunity EN61326 1997 A1 1998 Electromagnetic compatibility interference immunity impulse voltages interference emission Applied harmonised standards OIML D 11 Edition 20...

Page 117: ...Volume Conversion Device EK260 Elster GmbH 117 A 2 Approval for Ex Zone 1 ...

Page 118: ...Volume Conversion Device EK260 118 Elster GmbH ...

Page 119: ...Volume Conversion Device EK260 Elster GmbH 119 ...

Page 120: ...Volume Conversion Device EK260 120 Elster GmbH ...

Page 121: ...Volume Conversion Device EK260 Elster GmbH 121 ...

Page 122: ... MID Directive Ambient temperature 25 C 55 C Humidity conditions condensation Point of use open Mechanical ambient conditions accord to MID Directive Class M2 Electromagnetic ambient conditions accord to MID Directive Class E2 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 opti...

Page 123: ... Application as LF pulse or signal input Md I1 Md I2 Md I3 5 Open circuit voltage U0 5 0 V Internal resistance Ri 1 MΩ Short circuit current Is 5 µA Switching level on Re 100 kΩ or Ue 0 8 V Switching level off Ra 2 MΩ or Ua 3 0 V Pulse duration te 62 5 ms Space duration ta 62 5 ms Counting frequency f 2 Hz see chapter 4 4 b Use of Input 1 terminal DE1 as encoder input Md I1 5 Open circuit voltage ...

Page 124: ...m residual current 0 001 mA a Application as LF pulse or time synchronous output Md A 1 or 3 Pulse duration Min 125 ms adjustable on a pitch of 125 ms Space duration Min 125 ms adjustable on a pitch of 125 ms Output frequency Max 4 Hz adjustable b Application as HF output only Output 2 DA2 Md O2 8 Output frequency Max 1000 Hz adjustable B 6 Optical serial interface Optical interface according to D...

Page 125: ...the Ermeto connection on the pressure sensor Cross section of pressure sensor connection Measurement range Max admissible overload 0 7 2 bar abs 18 bar abs 0 8 5 bar abs 25 bar abs 1 4 7 bar abs 25 bar abs 2 10 bar abs 40 bar abs 2 4 12 bar abs 40 bar abs 4 20 bar abs 40 bar abs 6 30 bar abs 60 bar abs 8 40 bar abs 60 bar abs 14 70 bar abs 105 bar abs 16 80 bar abs 105 bar abs B 9 Temperature sens...

Page 126: ...dary 37 38 90 Daylight saving 41 51 E Eichtechnisches Logbuch 48 Encoder 15 25 26 28 31 46 99 Event logbook 42 Ex Zone 1 see Zone 1 F FE260 69 flash 39 57 Freeze 37 39 53 57 G GSM 73 H HF output 65 69 I Interface 16 48 50 72 77 L Logbook 42 M Maximum 10 Mean 10 Measurement period 24 27 30 33 38 39 52 66 86 Minimum 10 Modbus 71 74 75 82 Modem 50 Month boundary see Day boundary O Operating point che...

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Elster 83 462 140, Operating Manual And Installation Instructions

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