Elster EK280 Instructions for use

EK280
Application Manual
Issue 2016-1
Software Version 2.31 et seq.

EK280 Application Manual 1
Contents
1 General .........................................................................................................................................................5
1.1 Safety instructions...............................................................................................................................5
1.2 Additional information..........................................................................................................................5
2 EK280 Operation and Display ....................................................................................................................6
2.1 Display configuration...........................................................................................................................6
2.1.1 "Main" main display ....................................................................................................................6
2.1.2 Setting the number of tabs .........................................................................................................6
2.1.3 User values for the customer......................................................................................................7
2.1.4 User Values for the Administrator...............................................................................................7
2.2 EK280 archives display.......................................................................................................................8
2.2.1 Progress index............................................................................................................................8
2.2.2 Search function for checking archive entries..............................................................................9
2.3 Context menu....................................................................................................................................10
2.3.1 Jump to main display ("Goto Main").........................................................................................10
2.3.2 Freeze display ("Freeze Display")............................................................................................10
2.3.3 Clear status register ("Clear Status R.")...................................................................................10
2.4 Special commissioning function........................................................................................................11
2.4.1 Device software and checksum................................................................................................11
2.4.2 Clear volumes and archives ("Clr.V").......................................................................................11
2.4.3 Clear archives ("Clr.A").............................................................................................................11
2.4.4 Parameterize the volume at measurement conditions "Vm"....................................................11
2.4.5 Parameterize the volume at base conditions ...........................................................................12
2.5 Parameterize display contrast...........................................................................................................13
2.6 Error messages when entering values..............................................................................................14
3 Working with enSuite................................................................................................................................15
3.1 Setting up the communication link to the EK280 via optical interface ..............................................15
3.2 Setting up the communication link to EK280 via a modem...............................................................15
3.3 Setting up the communication link to EK280 via a network (TCP/IP)...............................................16
3.4 Setting up a direct communication link to EK280..............................................................................16
3.5 Updating customized parameters .....................................................................................................16
3.6 Send parameter file...........................................................................................................................17
4 Volume measurement ...............................................................................................................................17
4.1 LF Pulse generator (reed contact) ....................................................................................................18
4.1.1 Connection................................................................................................................................18
4.1.2 Parameterization ......................................................................................................................18
4.2 HF pulse generator (Namur) .............................................................................................................19
4.2.1 Connection................................................................................................................................19
4.2.2 Parameterization ......................................................................................................................19
4.3 Encoder.............................................................................................................................................20
4.3.1 Connection................................................................................................................................20
4.3.2 Parameterization ......................................................................................................................20
4.4 HF pulse input with automatic conversion ........................................................................................22
4.4.1 Pulse generator connection......................................................................................................22
4.4.2 Parameterization ......................................................................................................................23
4.5 Pulse comparison..............................................................................................................................24
4.5.1 Pulse generator connection......................................................................................................24
4.5.2 Parameterization ......................................................................................................................24
4.6 Monitoring the load at measurement conditions Qm in the archive..................................................26
4.6.1 Pulse generator connection......................................................................................................26
4.6.2 Parameterization ......................................................................................................................27
4.6.3 Evaluation with enSuite ............................................................................................................27
4.7 Parameterize the Qm/Qb load display..............................................................................................28
5 Other number and status inputs..............................................................................................................30
5.1 Warning input active..........................................................................................................................30

EK280 Application Manual 2
5.2 Warning input inactive.......................................................................................................................31
5.3 Information input active.....................................................................................................................31
5.4 Information input inactive ..................................................................................................................31
5.5 Time-synchronous input....................................................................................................................32
5.6 Additional metering input (Input 3) ....................................................................................................32
5.6.1 Archive for the additional metering input (Input 3)....................................................................33
6 Outputs.......................................................................................................................................................34
6.1 Connection of outputs .......................................................................................................................34
6.2 NF pulse output (low-frequency).......................................................................................................35
6.2.1 Parameterization ......................................................................................................................35
6.3 Status output (signal output) .............................................................................................................37
6.3.1 Parameterizing by keyboard.....................................................................................................37
6.3.2 Parameterizing with enSuite.....................................................................................................37
6.4 Time-synchronous output..................................................................................................................39
6.4.1 Parameterization ......................................................................................................................39
6.5 HF Pulse outputs (high frequency)....................................................................................................40
6.5.1 Scope........................................................................................................................................40
6.5.2 System preconditions ...............................................................................................................40
6.5.3 Parameterization ......................................................................................................................41
6.5.4 Connection example.................................................................................................................41
6.6 Continuous pulse output ...................................................................................................................42
6.6.1 Parameterization ......................................................................................................................42
6.7 Switching pulse inputs on or off ........................................................................................................42
6.7.1 Parameterization ......................................................................................................................42
6.8 Connecting outputs to a PLC or an isolation amplifier......................................................................42
6.9 Isolating outputs (galvanic isolation) .................................................................................................43
6.10 Securing the outputs .........................................................................................................................44
7 Data transfer...............................................................................................................................................45
7.1 Internal GSM and GPRS modem......................................................................................................45
7.1.1 SIM card insertion and unlocking .............................................................................................45
7.1.2 GSM Operation.........................................................................................................................47
7.1.3 GPRS (TCPserv-Function).......................................................................................................50
7.1.4 GPRS with ComFTP.................................................................................................................53
7.1.5 GPRS with ComTSC (Tainy Switching Center)........................................................................57
7.1.6 Replacing the antenna..............................................................................................................63
7.1.7 Upgrading an internal modem..................................................................................................65
7.2 EM260 to serial interface ..................................................................................................................68
7.2.1 EM260 connection....................................................................................................................68
7.2.2 EM260 with analog modem (PSTN modem)............................................................................69
7.2.3 EM260 with Ethernet Adapter...................................................................................................72
7.2.4 EM260 with GSM-Modem ........................................................................................................77
7.3 FE260 to serial interface ...................................................................................................................81
7.3.1 FE260 connection.....................................................................................................................81
7.3.2 FE260 SIM card insertion and unlock ......................................................................................83
7.3.3 FE260 with internal analog modem (PSTN Modem)................................................................85
7.3.4 FE260 GSM/GPRS version, GSM operating mode..................................................................87
7.3.5 FE260 GSM/GPRS mode, GPRS/TCserv................................................................................89
7.3.6 FE260 GSM/GPRS version with ComFTP modem application................................................96
7.3.7 FE260 GSM/GPRS version with ComTSC modem application .............................................100
7.3.8 FE260 with Ethernet Adapter .................................................................................................101
7.3.9 FE260 with RS232 interface card...........................................................................................104
7.4 Other devices to serial interface......................................................................................................106
7.4.1 Direct RS232 interface connection (i.e. PC COM port)..........................................................106
7.4.2 Ex isolator MTL5051...............................................................................................................108
7.4.3 RS485 interface, electrically isolated .....................................................................................111
7.4.4 RS485 interface, without electrical isolation...........................................................................113
7.5 Data transfer verification .................................................................................................................116
7.5.1 Time window connection ........................................................................................................116
7.5.2 Point-in-time connection.........................................................................................................117

EK280 Application Manual 3
7.5.3 Connection configuration status "StCon" ...............................................................................118
7.5.4 Status of remote terminal "SDst"............................................................................................119
7.5.5 GSM modem status "StM"......................................................................................................120
7.6 Registration of the GSM receiving level in a flexible archive ..........................................................120
7.6.1 Connection..............................................................................................................................120
7.6.2 Parameterization ....................................................................................................................120
7.6.3 Evaluation with enSuite ..........................................................................................................121
8 Data transmission protocols..................................................................................................................122
8.1 Modbus............................................................................................................................................122
8.1.1 Standard settings of the Modbus Map....................................................................................122
8.1.2 Formats...................................................................................................................................123
8.1.3 Value readout via Modbus......................................................................................................123
8.1.4 Value update via Modbus.......................................................................................................123
8.1.5 Modbus via RS232 interface ..................................................................................................124
8.1.6 Modbus via internal modem (Modbus RTU_TCP) .................................................................125
8.2 Operating a Modbus Master............................................................................................................127
8.2.1 General parameterization.......................................................................................................127
8.2.2 Parameterization of Modbus master tasks.............................................................................128
8.2.3 Modbus Master Parameter (Modbus Master Info)..................................................................128
8.2.4 Modbus parameters which are valid for the entire device......................................................129
8.2.5 Connection parameters..........................................................................................................129
8.2.6 Modbus master via the terminal device (RS232 directly, RTU or ASCII format) ...................129
8.2.7 Modbus master via internal modem (RTU_TCP)...................................................................133
8.3 Sending SMS messages.................................................................................................................135
8.3.1 Preparation.............................................................................................................................135
8.3.2 Parameterization ....................................................................................................................135
9 Archive......................................................................................................................................................138
9.1 Measurement period archive...........................................................................................................138
9.1.1 Archive content.......................................................................................................................138
9.1.2 Memory capacity ....................................................................................................................139
9.1.3 Changing the measurement period........................................................................................139
9.1.4 Values relating to measurement periods................................................................................140
9.1.5 Remainder of the measurement period..................................................................................140
9.1.6 Freeze metering period archive..............................................................................................140
9.1.7 Delete measurement period archive ......................................................................................141
9.2 Daily archive....................................................................................................................................141
9.2.1 Archive content.......................................................................................................................141
9.2.2 Memory capacity ....................................................................................................................142
9.2.3 Changing the daily limit ..........................................................................................................142
9.2.4 Values relating to daily limits..................................................................................................142
9.2.5 Time elapsed since the daily limit...........................................................................................143
9.2.6 Deleting the daily archive .......................................................................................................143
9.3 Monthly archive 1 (Monthly meter readings)...................................................................................144
9.3.1 Archive content.......................................................................................................................144
9.3.2 Memory capacity ....................................................................................................................144
9.3.3 Changing the monthly limit (= daily limit)................................................................................144
9.3.4 Values relating to months.......................................................................................................145
9.3.5 Delete monthly archive 1........................................................................................................145
9.4 Monthly archive 2 (Measured values).............................................................................................146
9.4.1 Archive content.......................................................................................................................146
9.4.2 Memory capacity ....................................................................................................................147
9.4.3 Changing the monthly limit (= daily limit)................................................................................147
9.4.4 Values relating to months.......................................................................................................147
9.4.5 Delete monthly archive 2........................................................................................................148
9.5 Manual (Events manual) .................................................................................................................148
9.5.1 Archive content.......................................................................................................................148
9.5.2 Memory capacity ....................................................................................................................149
9.5.3 Deleting the manual................................................................................................................149
9.6 Modifications archive (audit trail).....................................................................................................149
9.6.1 Archive content.......................................................................................................................149

EK280 Application Manual 4
9.6.2 Memory capacity ....................................................................................................................149
9.6.3 Deleting the modification archive ...........................................................................................149
9.7 Updates archive ..............................................................................................................................150
9.7.1 Archive content.......................................................................................................................150
9.7.2 Memory capacity ....................................................................................................................150
9.7.3 Delete updates archive...........................................................................................................150
9.8 Calibration data log .........................................................................................................................151
9.8.1 Deactivating the calibration data log ......................................................................................151
9.8.2 Archive content.......................................................................................................................151
9.8.3 Memory capacity ....................................................................................................................151
9.8.4 Deleting the calibration data log.............................................................................................152
9.9 User archive ....................................................................................................................................152
9.9.1 Archive content.......................................................................................................................152
9.9.2 Memory capacity ....................................................................................................................152
9.9.3 Delete user archive.................................................................................................................152
10 Status messages .....................................................................................................................................153
10.1 Clearing messages in the status register........................................................................................153
10.2 List of status messages...................................................................................................................153
10.3 Device battery life............................................................................................................................157
10.3.1 Standard operation.................................................................................................................157
10.3.2 Encoder for volume measurement .........................................................................................157
10.3.3 Additional pressure or temperature sensors ..........................................................................158
10.3.4 Output isolation (galvanic separation)....................................................................................159
10.4 Modem battery life...........................................................................................................................159
10.4.1 Monthly data transfer..............................................................................................................160
10.4.2 Weekly data transfer...............................................................................................................160
10.4.3 Daily data transfer ..................................................................................................................160
10.5 Data transfer duration in modem battery operation ........................................................................161
10.5.1 Data transfer duration depending on ambient temperature ...................................................161
10.5.2 Data transfer duration for daily call.........................................................................................161

EK280 Application Manual 5
1 General
1.1 Safety instructions
This Application Manual is intended for use as a supplement to the Operating Instructions. It must not be
used without the Operating Instructions.
Danger!
Do not use this Application Manual without the relevant Operating Instructions. Pay
specific attention to the safety instructions given therein.
The following cases in particular carry risks, which are further discussed in the Operating Instructions:
Avoid improper use of the EK280 in a potentially explosive atmosphere.
Avoid improper battery use.
Avoid contact with live parts in the EK280 version with internal power supply.
Should any instructions in the Application Manual conflict with those given in the
Operating Instructions, follow the instructions in the Operating Instructions.
1.2 Additional information
Further usage information can be found in the following documents:
[1] EK280 Operating Instructions
Elster Order No.: 73021805
[2] LIS-200 Device Readings –General Description
[3] LIS-200 Device Readings –Appendix EK280
[4] ComFTP Modem Application –Operating Instructions
Elster Order No.: 73022681
[5] EK280 DLMS Interface –Application Manual
No Order No.
[6] Modbus Communication with EK2x0_V2.0_*.pdf
No Order No.
[7] Commissioning Instructions FE260/GPRS-ComTCPserv
[8] Commissioning Instructions FE260/GPRS-ComTSC
[9] FE260_INSYS-Ethernet-Install_de_*.pdf
Elster Order No.: 73021405
No Order No.
No Order No.
Operating Instructions in various languages may also be downloaded from the Elster Dokuthek at
"http://docuthek.kromschroeder.com", entering the search term "EK280".
Otherwise please contact the Elster hotline on: Tel.: [phone] / 605-123 or [e-mail]

EK280 Application Manual 6
2 EK280 Operation and Display
2.1 Display configuration
2.1.1 "Main" main display
With the calibration lock open, "Main" on the "Ctrl." display tab allows you to select different views and contents
for the "Main" tab:
"Main"
Description
volume +
meas.
Displayed: Volume at base conditions, volume at measurement conditions,
pressure, temperature, compressibility and conversion factor with short descriptions
Meter reading format: 8 digits before and 3 digits after decimal point
volume short
Displayed: Volume at base conditions and volume at measurement conditions with
short descriptions and header
Meter reading format: 8 digits before and 3 digits after decimal point
volume long
Displayed: Volume at base conditions and volume at measurement conditions with
header but without short descriptions
Meter reading format: 9 digits before and 4 digits after decimal point
Volume, p,T,Q
Displayed: Volume at base conditions, volume at measurement conditions,
pressure, temperature, standard load and operational load with short descriptions
Meter reading format: 8 digits before and 3 digits after decimal point
List
Displayed: Volume at base conditions, volume at measurement conditions, total
number of DE1 inputs (initial number for connected Encoder), pressure,
temperature, conversion factor, compressibility, operational load, standard load,
date and time
Vb, Vo, meas.
The following are displayed: Volume at base conditions, meter reading of the gas
meter (Encoder), pressure, temperature, compressibility ratio factor and conversion
factor with short descriptions
Meter reading format: 8 digits before and 3 digits after decimal point
Vb,Vo,p,T,Q
The following are displayed: Volume at base conditions, meter reading of the gas
meter (Encoder), pressure, temperature, standard load and operational load with
short descriptions
Meter reading format: 8 digits before and 3 digits after decimal point
2.1.2 Setting the number of tabs
With the calibration lock open, on the "Ctrl." display tab the "Menu" value allows you to select the number of
tabs displayed.
"Menu"
Description
2 registers
The Main and Ctrl. tabs will be displayed.
3 registers
The Main, Cust. and Ctrl. tabs will be displayed.
4 registers
The Main, Cust., Admin and Ctrl. tabs will be displayed.
5 registers
All Main, Cust., Admin, Serv. and Ctrl. tabs will be displayed.
-
This option is system-generated and is not intended for use. It works in the same
way as "2 registers" (see above).

EK280 Application Manual 7
2.1.3 User values for the customer
i
For parameterization of the EK280 you will require a connection cable for the optical interface as
well as the enSuite application, which can be downloaded for free at www.elster-instromet.com.
All values displayed on the "Cust." tab, can be set using enSuite:
Connect a PC or laptop with enSuite installed to the EK280 optical interface using the connection
cable.
Start enSuite and set up the communication link to the EK280. (see chapter 3.1 "Setting up the
communication link to the EK280 via optical interface", page 15)
Select "Navigation" on the left-hand side and then "Parameterize online" at the bottom of the
navigation window.
In the top of the device window open the path "Parameters" > "Device settings" > "Display" by
clicking on the relevant plus signs, and then select "User column 'Customer'".
By using the "All Parameters" tab in the right-hand part of the window, you can now select which
values are to be displayed. To do this, press an entry in the "Value" column, and then the button with
the three dots. You can now select a new value to be displayed for this position in the display in the
window that opens up.
Once you have set all values, click on the "Transfer changes to device" icon at the top of the enSuite
window.
2.1.4 User Values for the Administrator
i
For parameterization of the EK280 you will require a connection cable for the optical interface as
well as the enSuite application, which can be downloaded for free at www.elster-instromet.com.
All values displayed on the "Admin." tab under "User values" can be set using enSuite:
Connect a PC or laptop with enSuite installed to the EK280 optical interface using the connection
cable.
Start enSuite and set up the communication link to the EK280. (see chapter 3.1 "Setting up the
communication link to the EK280 via optical interface", page 15)
Select "Navigation" on the left-hand side and then "Parameterize online" at the bottom of the
navigation window.
In the top of the device window open the path "Parameters" > "Device settings" > "Display" by
clicking on the relevant plus signs, and then select "User column 'Administrator'".
By using the "All Parameters" tab in the right-hand part of the window, you can now select which
values are to be displayed. To do this, press an entry in the "Value" column, and then the button with
the three dots. You can now select a new value to be displayed for this position in the display in the
window that opens up.
With the first 10 values you select what will be displayed in the display of the unit under the tab
"Admin." under "User values". With the next 12 values you select what will be displayed as the
content of display via the path "User values" > "further...".
Once you have set all values, click on the "Transfer changes to device" icon at the top of the enSuite
window.

EK280 Application Manual 8
2.2 EK280 archives display
i
A comprehensive description of the archive can be found in Chapter 9)
To display the contents of an archive, move the cursor to the archive header and press the ENTER or key.
The Archive Headers are located on the Admin. and Serv. tabs under Archives, the log books also are under
Status.
The archive data is displayed in table format, i.e. in columns with headings. Individual columns are separated
by one or more spaces. The column header contains the name of the value displayed in the column and where
applicable the unit. Space permitting, multiple columns are displayed simultaneously.
The and buttons move the cursor through adjacent columns, the cursor remains at the left column edge
and the columns are moved along in the display. The and buttons move the cursor to older or newer
entries (rows).
Archive view button functions in detail:
Move right one column. (The columns will be moved to the left by one column.)
After the last column the cursor returns to the first column.
Move left one column. (The columns will be moved to the right by one column.)
After the first column the cursor moves to the last column.
Move down one row. The first row then appears again after the last one.
Move up one row. The last row appears after the first one.
ENTERInput for archive search function, see Chapter 2.2.2, Page 9.
The function is executed on the left-hand column.
ESC Exits the archive and returns to the archive header.
+ Goes to the archive entry point, i.e. the value at the top left of the table.
+ The LIS-address and the OBIS-Code of the value will be displayed.
The function is executed on the left-hand column.
2.2.1 Progress index
The progress index in comparison to each preceding archive entry is labeled with a "" after its name in the
table header (Example: see "Vn  " in Figure 1). They are shown in the display only, and not read out via the
interface.
Figure 1: Progress index display in the archive
Typically equal to the flow (consumption) progress index over a measurement period. This is however not the
case, where an archive row is added as a result of a specific event (i.e. resetting of the clock or gas meter,
display of an important status message) or if a data error is detected. Such an event is indicated as follows:

EK280 Application Manual 9
Display
Description
All values within an
archive row flash.
It is not possible to calculate a valid progress index due to a data error in the
current archive row. The data error is detected via checksum (CRC).
The progress index with
a "c" appended to it
flashes.
It is not possible to calculate a valid progress index due to a data error in the
preceding archive row. The data error is detected via checksum (CRC).
The progress index with
an "e" appended to it
flashes.
The displayed progress index does not refer to a full measurement period, as
the current or previous archive row was not entered as a result of
measurement period completion, but instead due to i.e. resetting of the clock.
Example of this: see Figure 1: "000000000.0000e" and "000000024.0000e".
These values would flash in the actual display.
2.2.2 Search function for checking archive entries
The measurement period archive and the daily archive contain several thousand and several hundred entries
respectively. Individual values from these datasets can be displayed for verification purposes, as the device
includes an archive entry search function. Values can be searched on in the following rows:
Identification number
Date and time
Meter reading
To search, first move the cursor to the desired column in the relevant archive row. Pressing the "ENTER" key
allows entry of the value to be searched for in this column. Pressing "ENTER" after entering the search value
will cause the cursor to jump to the archive row containing the required value. If the entry is not found, it jumps
to the next closest entry.

EK280 Application Manual 10
2.3 Context menu
The context menu allows you to quickly access specific commands in the various displays.
The context menu is accessed using the key.
Figure 2: displayed context menu
2.3.1 Jump to main display ("Goto Main")
The main display ("Main" tab) is displayed.
2.3.2 Freeze display ("Freeze Display")
This function can be used for example to record multiple measurement values, for which the time stamp is
significant.
All currently displayed values are "frozen", i.e. cached for subsequent display in place of the real time values,
until the display is unfrozen.
Measurement is unaffected and continues in the background.
The state is indicated by a blinking symbol ("frozen") in the status bar. Pressing any key unfreezes the
display and re-displays the real time values.
Figure 3: "frozen" display
2.3.3 Clear status register ("Clear Status R.")
The status register is cleared (see chapter 10, page 153).
i
Deleting statuses can only be carried out if the administrator or calibration lock is open.
If both locks are closed then the context menu is left without deleting the status register.

EK280 Application Manual 11
2.4 Special commissioning function
2.4.1 Device software and checksum
Move the cursor under tab "Serv." to "Identification" > "Volume Converter" > "Vers" or "Chk"
The checksum "Chk" can be recalculated for verification purposes by pressing the ENTER button.
2.4.2 Clear volumes and archives ("Clr.V")
i
The "Clr.V" functions described here delete all volume counters and all archives and logbooks.
So that all volume counters and all archives and logbooks are deleted from the device, open the
calibration lock as described in the EK280 operating instructions.
Move the cursor in tab "Serv." to "Edit and delete” > "Clr.V".
Press the ENTER button "0" flashes.
Change the value using the arrow buttons or to "1".
Press the ENTER button to confirm the set value. It is possible to abort the entry by pressing the
ESC button.
2.4.3 Clear archives ("Clr.A")
i
With the "Clr.A" functions described here, only the measurement period archive, the daily archive,
monthly archives 1 and 2 and the four user archives can be deleted.
So that the measuring period archive, the daily archive, monthly archives 1 and 2 and the four user
archives are deleted from the device, go to and open the administrator or calibration lock as
described in the EK280 operating instructions.
Move the cursor in tab "Serv." to "Edit and delete > "Clr.A" .
Press the ENTER button One digit of the value flashes.
A safety function is provided to prevent accidental deleting of meter counts and archives. The serial
number of the unit must be entered to activate the safety function. For input, move the cursor with
the arrow keys or to the digits and change these with the arrow keys or .
i
The serial number of the device is printed on the identification label or it can be fined in the "Serv."
register under "Identification" > "Volume Converter" > "SNo".
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key.
2.4.4 Parameterize the volume at measurement conditions "Vm"
i
A one-off setting of the volume counter is possible from software version 2.20 while the
administrator lock is open.
The counter of the EK280 can be set once in a similar way to that of the gas counter while the administrator
lock is open for recording the volume in practice. When the calibration lock is open it is always possible to
set the volume and this can also be done directly via the operational volume (tab "Serv." to "Volume" >
"Actual volume" > "Vm".

EK280 Application Manual 12
Method (without opening the calibration lock):
Open the administrator lock
Move the cursor to "Serv." >"Volume" > "Actual volume" > "Synchronization Vm > "VmA" (the value
to be taken over, is first interim saved by the "resettable interim counter" VmP and then taken over
as "Vm" when the counter reading is reached).
Press the ENTER button One digit of the value flashes.
Move the cursor with the arrow buttons or to the digits and change these with the arrow buttons
or .
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key.
To accept the set value move the cursor to the value "Store"
Press the ENTER button "0" flashes.
Change the value to "1" by pressing the or arrow keys.
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key. 
For "Vm" is taken "VmP".
i
If the administrator lock is open and the transfer of "VmP" for "Vm" is rejected with the
message --13--, this process has previously been carried out.
Further changes are possible when either the calibration lock or the administration lock is open,
after deleting the change information regarding setting "Vm" at the same value as the gas meter
(see chapter 2.4.4.1).
The following values are shown on the same menu:
Display
Description
TimeX
Time when counter synchronization was carried out
Vm_o
"Old" operating volume counter value Vm
Vm_n
"New" operating volume counter value Vm
2.4.4.1 Delete change information for synchronization Vm with the gas meter
Change information for adapting "Vb" to the gas counter must be deleted while the calibration lock is open in
order to re-set the volume under metering period conditions when the administrator lock is open:
Open the calibration lock
Move the cursor to "Serv." >"Volume" > "Actual volume" > "Synchronization Vm > "Clear".
Press the ENTER button "0" flashes.
Change the value to "1" by pressing the or arrow keys.
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key. 
"TimeX" (time stamp of synchronization), "Vm_o" (Vm old value), "Vm_n" (Vm new value) will be set
to default values.
2.4.5 Parameterize the volume at base conditions
i
A one-off setting of the volume counter is possible from software version 2.20 while the
administrator lock is open.
The quantity converter EK280 offers the possibility of adjusting the standard volume counter once during
commissioning of the unit while the administrator lock is open. Setting the volume is always possible while
the calibration lock is open and can also be carried out directly via Standard Volume (tab "Serv." to "Volume"
> "Standard Volume" > "Vb".

EK280 Application Manual 13
Method (without opening the calibration lock):
Open the administrator lock
Move the cursor to "Serv." >"Volume" > " Standard volume " > "Synchronization. Vb > "VbP"
Press the ENTER button One digit of the value flashes.
Move the cursor with the arrow buttons or to the digits and change these with the arrow buttons
or .
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key.
To accept the set value move the cursor to the value "Store".
Press the ENTER button "0" flashes.
Change the value to "1" by pressing the or arrow keys.
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key. 
For "Vb" is taken "VbP".
i
If, with the administrator lock, the take of "VbP" for "Vb" is declined with the message --13-- the
procedure has already been once before.
Further changes are possible when either the calibration lock or the administration lock is open,
after deleting the change information regarding settings for setting at the same value as "Vb" (see
chapter 2.4.5.1).
The following values are shown on the same menu:
Display
Description
TimeX
Time when counter synchronization was carried out
Vb_o
"Old" operating volume counter value Vb
Vb_n
"New" operating volume counter value Vb
2.4.5.1 Delete change information for synchronization Vb with the gas meter
To allow for resetting of the standard volume when the administrator lock is open, the change information
regarding setting at the same value as "Vb" must be deleted:
Open the calibration lock
Move the cursor to tab "Serv." to "Volume" > "Standard volume" > "Synchronization Vb > "Clear" .
Press the ENTER button "0" flashes.
Change the value to "1" by pressing the or arrow keys.
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key. 
"TimeX" (time stamp of synchronization), "Vb_o" (Vb old value), "Vb_n" (Vb new value) will be set to
default values.
2.5 Parameterize display contrast
The display contrast of the EK280 can be adjusted to suit the surrounding conditions.
Open the administrator lock as described in the EK280 operating manual.
Move the cursor in tab "Serv." to "Device settings" > "Display" > "Contr."
Press the ENTER button One digit of the value flashes.
To enter the display contrast value move the cursor to the digits using the arrow keys or and
update them using the arrow keys or .
i
The factory settings for the display contrast is "164". Input values greater than "164" darken the
contrast settings, whereas lower values render the display brighter.
Do not enter any values below "100" otherwise it is not possible to read values.
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key.

EK280 Application Manual 14
2.6 Error messages when entering values
If a value has been entered incorrectly via the keyboard, input error messages will be displayed.
Figure: --x-- where x = error code according to the following table
Code
Description
1
The archive is empty. No values have been entered.
2
The archive value cannot be read.
The archive may currently be open for read-out via the interface.
4
This parameter cannot be changed (constant).
5
You are not authorized to change this value.
A corresponding lock must be opened to change this value.
6
Invalid value
The value entered is outside the permissible limits.
7
Incorrect code
The code entered (numerical code) is incorrect; the lock will not be opened.
11
Entry based on specific setting or configuration not possible, e.g.:
- The inputs "Vm" and "VmD"are not possible in the Encoder mode,
- Changing the net calorific value is only possible in the gas analysis list; not in the energy list.
12
The input of this source (address) is not permitted.
13
Entry based on specific setting or configuration not possible, e.g.:
- The function "Clr.X" can be carried out only once the clock has been set to its starting value
(initialized) with the key combination. + .
- The function "Store" can be carried out only once the change information for adapting "Vm" (see
Chapter 2.4.4.1) or "Vb" (see Chapter 2.4.5.1) has been deleted.
14
Gas analysis parameters do not correspond.
20
Value has not been defined for the user-specific display.
The displayed value can be defined by the user by entering the address. As this address has not
yet been entered, no value will be displayed.
21
The value can only be changed when the calibration lock is open as the PTB log is full.

EK280 Application Manual 15
3 Working with enSuite
"enSuite" is the parameterization program used for the EK280 and other Elster products, which replaces the
WinPADS series. The main functions only are briefly explained here. For a more detailed description please
see the enSuite documentation.
3.1 Setting up the communication link to the EK280 via optical interface
i
To set the EK280 parameters via the optical interface, you need an optical read head cable,
available from Elster.
The enSuite parameterization program can be downloaded for free at www.elster.com.
Insert the optical read head into the ring on the front panel of the EK280 and connect the other end
to a COM or USB port on your PC or laptop.
Connect a PC or laptop to the EK280's optical interface using the cable.
Start the enSuite program (i.e.: Start > Programs > Elster > enSuite)
Press symbol "Search device..." (magnifying glass symbol)
In the "Search device and connect" window select the "LIS200" tab
Select "Access" "LIS200", "User" "Administrator", "Connection" "Optical" and "use default
settings"
In the field "Key" enter the administrator key.
Press "OK".
After a few seconds "connected" is displayed at the bottom of the "Output" window.
3.2 Setting up the communication link to EK280 via a modem
Requirement: A communication link between enSuite and the EK280 (see chapter 7).
Ensure your PC or laptop is configured for remote data transmission, i.e. is connected to a modem.
Start the enSuite program (i.e.: Start > Programs > Elster > enSuite)
Press symbol "Search device..." (magnifying glass symbol)
In the "Search device and connect" window select the "LIS200" tab
Select "Access" "LIS200", "User" "Administrator", "Connection" "Modem" and "use default
settings"
In the field "Key" enter the administrator key.
Enter the EK280's SIM card telephone number under "Modem"
Press "OK".
After a few seconds "connected" is displayed at the bottom of the "Output" window. Via a GSM
modem communication link to an EK280 this may take up to a minute.

EK280 Application Manual 16
3.3 Setting up the communication link to EK280 via a network (TCP/IP)
Requirement: A communication link between enSuite and the EK280 (see chapter 7).
Ensure your PC or laptop is connected to the LAN. The EK280 must be connected to the same
network.
Start the enSuite program (i.e.: Start > Programs > Elster > enSuite)
Press symbol "Search device..." (magnifying glass symbol)
In the "Search device and connect" window select the "LIS200" tab
Select "Access" "LIS200", "User" "Administrator", "Connection" "TCP/IP" and "use default
settings"
In the field "Key" enter the administrator key.
Enter the EK280's IP address under "Address" and port number under "Port".
Press "OK".
After a few seconds "connected" is displayed at the bottom of the "Output" window.
3.4 Setting up a direct communication link to EK280
Requirement: A communication link between enSuite and the EK280 (see chapter 7).
Ensure your PC or laptop has a COM port.
Start the enSuite program (i.e.: Start > Programs > Elster > enSuite)
Select the "Search device..." icon (magnifying glass icon)
In the "Search device and connect" window select the "LIS200" tab
Select "Access” "LIS200", "User" "Administrator", "Connection" "Serial RS232" and "use
default settings”
Enter the serial communication link speed under "Baud rate"
Press "OK".
After a few seconds "connected" is displayed at the bottom of the "Output" window.
3.5 Updating customized parameters
Prerequisite: A communication link between enSuite and the EK280 via optical interface, modem or network
(TCP/IP) has been set up (see chapters 3.1 to 3.3).
Select "Navigation" on the left-hand side.
Click on the plus sign beside "My Devices" in the newly-opened navigation window, to see a list of
your devices.
Click on the entry beginning with the serial number of the connected device.
The device identifier is now displayed at the bottom of the navigation window. If no command list is
displayed underneath, click on the arrow next to the device identifier.
In the lower part of the navigation window, press "Parameterize online"
Click on the plus sign next to "Parameter" at the top of the navigation window, to expand the
parameter tree.
In this parameter tree you can open parameter pages, to update parameters or drill down to open
more parameter pages.

EK280 Application Manual 17
3.6 Send parameter file
Prerequisite: A communication link between enSuite and the EK280 via optical interface, modem or network
(TCP/IP) has been set up (see chapters 3.1 to 3.3).
Select "Navigation" on the left-hand side.
Click on the plus sign next to "Connections" in the newly-opened navigation window.
Click on the entry beginning with the serial number of the connected device.
The device identifier is now displayed at the bottom of the navigation window. If no command list is
displayed underneath, click on the arrow next to the device identifier.
Select "Send parameter file"
Click "Open..." in the top right
In the dialog box "Select WPP file" select the corresponding directory and the parameter file and
then press "OK".
i
In enSuite from version 2.7 onwards, the name and issue (in brackets) of the parameter file are
both displayed. The file extension ".wpp" is not displayed.
i
If needed, any arbitrary wpp file can be selected with the "File system…" button. Make sure
that this manually selected wpp file is suitable for the EK280 software version.
Click on "Start" in the bottom right and wait until the file has been successfully sent.
i
In the center of the window, you will see the number of rows that have been sent along with
the number of rows containing errors (if applicable)
You must check in such cases whether the necessary locks are open and/or whether the file
used is suitable for the device version. Contact the Elster hotline (see EK280 handbook) is
necessary.
To begin another task, click again on "Navigation" on the left-hand side.
4 Volume measurement
Input 1 (terminal "DE1") is used as counter input for the volume conversion device, for applications with
automatic conversion input 2 (terminal "DE2") is also used.
Counter inputs for detection of gas volumes for conversion are generally under calibration lock, i.e. the
connector terminals are sealed and parameters affecting the counter can only be updated with the calibration
lock open.
The following pulse generators or encoders may be connected to input 1:
Volume encoder
Specifications
LF pulse generator
Reed contact or open collector transistor
HF pulse generator
NAMUR max. 2500 Hz, for use only with external power supply (not battery)
NAMUR encoder a
NAMUR protocol encoder a
NAMUR encoder a-b
NAMUR protocol encoder a and b
SCR EDIS encoder
SCR EDIS encoder with EDIS95 protocol
SCR OBIS encoder
SCR encoder with OBIS05 protocol

EK280 Application Manual 18
4.1 LF Pulse generator (reed contact)
4.1.1 Connection
Danger!
For EK280 with internal power supply, the mains voltage must be switched off before
opening the housing, ensure it is not turned back on and verify that there is no voltage.
DE1
+
-
Pulse generator
NF
(Reed contact)
Connect the gas meter's low frequency pulse generator (reed contact) to terminal "DE1" of the
EK280.
Release the input 1 (terminal "DE1") calibration seals.
4.1.2 Parameterization
Parameterization is carried out via the keyboard on the EK280.
Alternatively, parametrization can be carried out using the enSuite program. The paths which are subsequently
described can be found in enSuite under "Parameterize online" > "Parameters".
Setting the input mode:
Open the administration lock as described in the EK280 Operating Instructions.
Move the cursor to the "Serv." tab and via the path below go to the input mode "Md.I1":
Serv.  Inputs  Input 1  Md.I1
Press the ENTER button. The set value flashes.
Repeatedly press one of the or arrow keys until the text "pulse input" flashes.
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key.
Setting the cp (pulse constant) value:
Move the cursor to cp value "cp.I1" in the same path
Press the ENTER button. One of the value's digits flashes.
Move the cursor to the digits using the or arrow keys and update them using the or arrow
keys.
Press the ENTER button to confirm the value setting. Input can be canceled using the ESC key.
Close the administration lock of the EK280.
Set the counter value:
If necessary, the meter reading of the gas meter can be set as the starting value for the volume at
measurement conditions Vm. The procedure is described in Chapter "2.4.4".