Honeywell Elster EK280 Applications Manual

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EK280
Application Manual
Version 2013-2
Software Version 2.10 ff.

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  Summary of Contents for Honeywell Elster EK280

  • Page 1 EK280 Application Manual Version 2013-2 Software Version 2.10 ff.
  • Page 3: Table Of Contents

    EK280 Application Manual Contents 1 General ................................. 3 Safety instructions ..........................3 Additional information .......................... 3 2 EK280 Operation and Display ........................4 Display configuration ........................... 4 2.1.1 "Main" main display ........................4 2.1.2 Setting the number of tabs ......................4 2.1.3 User values for the customer ......................
  • Page 4 EK280 Application Manual FE260 to serial interface ........................35 6.3.1 FE260 connection ........................35 6.3.2 FE260 SIM card insertion and unlock ..................36 6.3.3 FE260 with integrated analog modem (PSTN Modem) ............38 6.3.4 FE260 GSM/GPRS version, GSM operating mode..............40 6.3.5 FE260 GSM/GPRS version, GPRS with TCP/IP operating mode ...........
  • Page 5: General

    EK280 Application Manual 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.
  • Page 6: Ek280 Operation And Display

    EK280 Application Manual 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 + Displayed: Volume at base conditions, volume at measurement conditions, pressure, meas.
  • Page 7: User Values For The Customer

    EK280 Application Manual 2.1.3 User values for the customer 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.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.
  • Page 8: Ek280 Archives Display

    EK280 Application Manual 2.2 EK280 archives display 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. Serv. tabs under Archives, the log books also are under Status.
  • Page 9: Search Function For Checking Archive Entries

    EK280 Application Manual Display Description All values within an It is not possible to calculate a valid progress index due to a data error in the archive row flash. current archive row. The data error is detected via checksum (CRC). The progress index with It is not possible to calculate a valid progress index due to a data error in the a "c"...
  • Page 10: Context Menu

    EK280 Application Manual 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"...
  • Page 11: Working With Ensuite

    EK280 Application Manual 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 To set the EK280 parameters via the optical interface, you need an optical read head cable, available from Elster.
  • Page 12: Setting Up A Direct Communication Link To Ek280

    EK280 Application Manual 3.4 Setting up a direct communication link to EK280 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 "...
  • Page 13: Volume Measurement

    EK280 Application Manual 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.
  • Page 14: Lf Pulse Generator (Reed Contact)

    EK280 Application Manual 4.1 LF Pulse generator (reed contact) 4.1.1 Connection Danger! For EK280 with integrated 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. Pulse Generator (Reed contact) Connect the gas meter's low frequency pulse generator (reed contact) to terminal "DE1"...
  • Page 15: Hf Pulse Generator (Namur)

    EK280 Application Manual 4.2 HF pulse generator (Namur) 4.2.1 Connection Danger! For EK280 with integrated 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. Pulse Generator (Namur) Connect the gas meter's high frequency pulse generator (Namur) to terminal "DE1"...
  • Page 16: Encoder

    EK280 Application Manual 4.3 Encoder 4.3.1 Connection Danger! For EK280 with integrated 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. Encoder (Namur or SCR) Connect the gas meter encoder to terminal "DE1"...
  • Page 17: Hf Pulse Input With Automatic Conversion

    EK280 Application Manual 4.4 HF pulse input with automatic conversion The EK280 can only count pulses from a high frequency pulse generator via an external power supply, and not battery power. To ensure uninterrupted gas volume measurement, the EK280 can be configured so that it switches to a low frequency pulse generator in the event of failure of the external power supply.
  • Page 18: Parameterization

    EK280 Application Manual 4.4.2 Parameterization Parameterization can be carried out here using the EK280 keypad. Parameterization can also be carried out using enSuite, where the below paths can be found under "Parameterize online" > "Parameter". a) Setting automatic conversion: On the EK280 display, move the cursor to tab "Serv." to: Serv.
  • Page 19: Pulse Comparison

    EK280 Application Manual 4.5 Pulse comparison Pulse generator errors can be detected early using pulse comparison. In principle, any two pulses may be compared. The process for securing the custody transfer measurement using a pulse generator on input 2 to monitor the pulse generator on input 1, is described here. The pulse generator used for pulse comparison must have the same pulse value (cp value)! With regard to the "HF pulse input with automatic conversion"...
  • Page 20: Parameterization

    EK280 Application Manual 4.5.2 Parameterization To program input 2 for the pulse comparison with input 1, send the following parameter file to the EK280 using the parameterization program "enSuite" (see chapter 3.6 "Send parameter file", page 10): EK280 - Input 2 = Pulse Comparison.wpp The deviation amount between the two pulse generators, above which a warning is triggered, is editable.
  • Page 21: Other Number And Status Inputs

    EK280 Application Manual 5 Other number and status inputs Inputs 2 to 6 (terminals DE2 to DE6) can be programmed with status or pulse inputs. If input 2 is being used as a hedge for input 1 volume detection (see chapter 4), it is no longer available here. Each input can be programmed as described in the following sub-chapters with the following functions: Warning input active Warning input inactive...
  • Page 22: Warning Input Inactive

    EK280 Application Manual 5.2 Warning input inactive Each of inputs 2 to 6 (terminals DE2 to DE6) can be programmed as inactive warning inputs. This means: If the "+" and "-" poles of the electrical inputs are open (not connected electrically), the message "8"...
  • Page 23: Information Input Inactive

    EK280 Application Manual 5.4 Information input inactive Each of inputs 2 to 6 (terminals DE2 to DE6) can be programmed as inactive information inputs. This means: When the input "+" and "-" are open (not electrically connected), the message "13" is entered in the momentary status of the relevant input.
  • Page 24: Data Transfer

    EK280 Application Manual 6 Data transfer 6.1 Integrated GSM and GPRS modem The SIM card must always be correctly inserted as described in chapter 6.1.1. You then proceed according to modem version as described in the following chapter. 6.1.1 SIM card insertion and unlocking Danger! For EK280 with integrated 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.
  • Page 25 EK280 Application Manual Figure 5: open SIM card slot Figure 6: SIM card inserted Insert the SIM card into the card slot (in the lid), so that the gold contacts face downwards in the closed end and the beveled side is at the open end of the lid. Click the lid shut again and gently slide the metal bracket outwards.
  • Page 26: Gsm Operation

    EK280 Application Manual 6.1.2 GSM Operation 6.1.2.1 Parameterization 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.com. a) Connecting the time window For the parameterization to work correctly, time windows 1 to 4 must be connected.
  • Page 27 EK280 Application Manual 6.1.2.2 Checking GSM field strength Before starting a data transfer via the modem, you must ensure that there is adequate reception field strength. Move the cursor to the "Serv." tab in the EK280's display, then to Interfaces > internal modem > GSM and GPRS > GSM.L With the cursor over GSM.L, please press the EK280 ENTER button and wait for approximately 30...
  • Page 28: Gprs With Tcp/Ip

    EK280 Application Manual 6.1.3 GPRS with TCP/IP In this modem operating mode you can access the EK280 via the network (Ethernet, TCP/IP), to which your retrieval system is connected, i.e. you do not require an additional retrieval system modem. Data transfer is normally faster than with GSM operation, as explained in chapter 6.1.2. 6.1.3.1 Parameterization 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.com.
  • Page 29 EK280 Application Manual d) Setting time window for potential data queries In the base configuration now displayed you can define time windows, during which data can be retrieved cyclically from the EK280 via the modem. There are two available time windows, which operate on EK280 battery power only and for versions of the EK280 with power supply there are two more, which operate only on mains voltage.
  • Page 30 EK280 Application Manual 6.1.3.3 Retrieving data with enSuite a) Opening the test time window for the following test retrievals with enSuite If the communication link to the EK280 via the optical interface is not set up, it must be created. (see chapter 3.1 "Setting up the communication link to the EK280 via optical interface ", page 9)
  • Page 31: Replacing The Antenna

    EK280 Application Manual 6.1.4 Replacing the antenna Danger! For EK280 with integrated 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. If reception via the integrated modem is too poor, it is possible to replace the mounted short antenna with SMA connection.
  • Page 32 EK280 Application Manual • Screw the external antenna onto the antenna adapter cable. • Pull the external antenna cable back outwards as far as possible, until the antenna adapter cable is lying against the inside of the cable gland. • Now tighten the cable gland nut. •...
  • Page 33: Em260 To Serial Interface

    EK280 Application Manual 6.2 EM260 to serial interface The EK280 only works with the 2009 build EM260. 6.2.1 EM260 connection Danger! Ensure the mains voltage is disconnected before opening the EM260 housing, ensure it is not turned back on and verify that there is no voltage. EM260 230V 230V AC...
  • Page 34 EK280 Application Manual 6.2.2.1 EK280 Parameterization 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.com. a) Connecting the time window For the parameterization to work correctly, time windows 5 and 6 must be connected.
  • Page 35: Em260 With Ethernet Modem

    EK280 Application Manual 6.2.3 EM260 with Ethernet modem The EK280 only works with the 2009 build EM260. Prerequisites for process described below: The EM260 is connected as described in chapter 6.2.1. 6.2.3.1 EK280 Parameterization 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.com.
  • Page 36 EK280 Application Manual 6.2.3.2 Retrieving data with enSuite If the communication link to the EK280 is via the optical interface, press the "Disconnect" or the "Disconnect from all devices" icon to terminate the communication link between enSuite and the EK280 and then wait for the "o" on the EK280 display to stop flashing. Set up the modem communication link from enSuite to the EK280.
  • Page 37: Fe260 To Serial Interface

    EK280 Application Manual 6.3 FE260 to serial interface FE260 connection and EK280 configuration via jumper is described in chapter 6.3.1. For FE260 GSM/GPRS (with wireless modem) models only, the SIM card must be inserted as described in chapter 6.3.2. You then proceed according to FE260 version as described in the following chapter. 6.3.1 FE260 connection Danger! Ensure the mains voltage is disconnected before opening the FE260 housing, ensure it...
  • Page 38: Fe260 Sim Card Insertion And Unlock

    EK280 Application Manual 6.3.1.2 EK280 jumpers X6: No jumper X5: two jumpers or one jumper on the pins located on the pins located near the terminals furthest from the terminals. 6.3.2 FE260 SIM card insertion and unlock The SIM card must only be inserted and if applicable unlocked in FE260 GSM/GPRS versions. For other versions this chapter can be skipped.
  • Page 39 EK280 Application Manual Click the lid shut again and gently slide the metal bracket outwards. Screw the FE260 housing back on. Finally, turn the FE260 power supply back on. b) If necessary, unlock the SIM card (enter the PIN) If the inserted SIM card's PIN ("Personal Identification Number") is activated, carry out the following instructions to unlock it: Move the cursor to the "Serv."...
  • Page 40: Fe260 With Integrated Analog Modem (Pstn Modem)

    EK280 Application Manual 6.3.3 FE260 with integrated analog modem (PSTN Modem) Prerequisites for process described below: The FE260 is connected and configured as described in chapter 6.3.1. 6.3.3.1 EK280 Parameterization 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.com.
  • Page 41 EK280 Application Manual Set up the modem communication link from enSuite to the EK280. (see chapter 3.2 "Setting up the communication link to EK280 via a modem", page 9) Once the communication link is set up, you can carry out checks, for instance view certain parameters To do this press "Navigation"...
  • Page 42: Fe260 Gsm/Gprs Version, Gsm Operating Mode

    EK280 Application Manual 6.3.4 FE260 GSM/GPRS version, GSM operating mode Prerequisites for process described below: The FE260 is connected and configured as described in chapter 6.3.1. The SIM card is inserted as described in chapter 6.3.2. 6.3.4.1 EK280 Parameterization 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.com.
  • Page 43 EK280 Application Manual 6.3.4.2 Checking GSM field strength Before starting a data transfer via the modem, you must ensure that there is adequate reception field strength. Move the cursor to the "Serv." tab in the EK280's display, then to Interfaces >"Terminal interface > GSM and GPRS > GSM.L With the cursor over GSM.L, please press the EK280 ENTER button and wait for approximately 30 to...
  • Page 44: Fe260 Gsm/Gprs Version, Gprs With Tcp/Ip Operating Mode

    EK280 Application Manual 6.3.5 FE260 GSM/GPRS version, GPRS with TCP/IP operating mode This operating mode works only if the FE260 has the Wavecom Integra "M2106+” modem module with the "TCPServ" on firmware V6.57e (released April 2009) or the "ECM-GW-120” modem module with the "WIPsoft" application installed. (Mid-2013 release). Prerequisites for process described below: The FE260 is connected and configured as described in chapter 6.3.1.
  • Page 45 EK280 Application Manual 6.3.5.2 Checking GSM field strength Before starting a data transfer via the modem, you must ensure that there is adequate reception field strength. On the EK280 display, move the cursor to tab "Serv." to Interfaces >"Terminal interface > GSM and GPRS > GSM.L With the cursor over GSM.L, please press the EK280 ENTER button and wait for approximately 30 to...
  • Page 46: Fe260 Gsm/Gprs Version With Comftp Modem Application

    EK280 Application Manual 6.3.6 FE260 GSM/GPRS version with ComFTP modem application ComFTP is a program in the FE260 modem. It reads cyclically from the EK280 and transmits the data to an enabled server. Attention: The ComFTP application will incur costs due to continuous data volume transmission via a mobile network.
  • Page 47 EK280 Application Manual 6.3.6.4 ComFTP application parameterization in the FE260 modem For ComFTP parameterization you will require a standard serial data transmission cable connecting your PC or Laptop with the FE260 modem as well as the WinPADS-EK program, which you can download for free at www.elster.com. The serial data transmission cable needed to connect to the FE260 is a 9-pole connector with pins (also called "male") and to connect to the PC or laptop either a COM port connection (normally a 9-pole socket connector, also called "female") or a USB connection.
  • Page 48 EK280 Application Manual Attach the JP2 jumper to the FE260 modem's PCB in the "program" position (jumper position: see Figure 7 and Figure 9above). Attach the serial data transmission cable to the "ST3" configuration interface on the modem's PCB (see Figure 7 and Figure 9 above) and to the COM or USB port on the PC or laptop. Set up the communication link between the PC or laptop and the modem as described in [4] "ComFTP Modem Application –...
  • Page 49: Fe260 With Ethernet Modem

    EK280 Application Manual 6.3.6.8 Monitoring data transfer to the FTP server Now you can check the data transfer to the FTP server using a suitable FTP client (i.e. "Filezilla"). Data should now be automatically transferred at the intervals programmed in the ComFTP from the volume conversion device to the server.
  • Page 50 EK280 Application Manual 6.3.7.2 EK280 Parameterization 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.com. a) Connecting the time window For the parameterization to work correctly, time windows 5 and 6 must be connected.
  • Page 51: Fe260 With Rs232/Rs485 Interface Card

    EK280 Application Manual 6.3.8 FE260 with RS232/RS485 interface card Modem adapter board 73016717 V1.2 Insys analog module with attached telephone cable Figure 12: Insys analog adapter in the FE260 This interface card is used to communicate with PCs and other serial interface devices. 6.3.8.1 Preparation Prerequisites for process described below: The RS232/RS485 interface card (Elster No.
  • Page 52 EK280 Application Manual b) Send parameter file Send the "EK280_2v1.. - FE260 & i-modul Modem 144 (Analogmodem)_*.WPP" to the EK280. (see chapter 3.66 "Send parameter file", page 10) For the following customized settings and tests required, press "Navigation" on the left-hand side and then "Parameterize online"...
  • Page 53: Other Devices To Serial Interface

    EK280 Application Manual 6.4 Other devices to serial interface 6.4.1 Direct RS232 interface connection (i.e. PC COM port) Please follow the application instructions in chapter 6.4.1.2 "EK280 jumpers" to the letter, to prevent measurement interference. 6.4.1.1 Connection EK280 PC, laptop or other RS232 DB-9 DE-25 DTR*...
  • Page 54 EK280 Application Manual 6.4.1.3 EK280 Parameterization 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.com. a) Connecting the time window For the parameterization to work correctly, time windows 5 and 6 must be connected.
  • Page 55 EK280 Application Manual Once the communication link is set up, you can carry out checks, for instance view certain parameters. To do this press "Navigation" on the left-hand side of the enSuite window and then "Parameterize online" in the bottom of the navigation window, then click on the plus sign next to "Parameter" and then its subsections.
  • Page 56: Ex Isolator Mtl5051

    EK280 Application Manual 6.4.2 Ex isolator MTL5051 The MTL5051 is an approved "associated apparatus" and can therefore be used as an interface isolator, if the EK280 is installed in Zone 1. 6.4.2.1 Connection Explosion hazard! If EK280 operation takes place in a potentially explosive atmosphere, ensure that all safety instructions in the EK280 Operating Instructions are followed.
  • Page 57 EK280 Application Manual 6.4.2.3 EK280 jumpers X6: No jumper X5: two jumpers or one jumper on the pins located on the pins located near the terminals furthest from the terminals. 6.4.2.4 EK280 Parameterization 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.com.
  • Page 58 EK280 Application Manual plus signs, and then select "Call time windows". For call window 5 set the start to "00:00" and the end to "23:59" and then select the "Transfer changes device" icon at the top of the enSuite window. Wait for around a minute for the EK280 to detect the FE260.
  • Page 59: Rs485 Interface, Electrically Isolated

    EK280 Application Manual 6.4.3 RS485 interface, electrically isolated 6.4.3.1 Wiring When the EK280 is connected to a RS485 bus there must be no terminal resistors connected to the bus! Due to the current limit for intrinsically-safe apparatus approval, the EK280 cannot supply sufficient current to power terminal resistors.
  • Page 60 EK280 Application Manual 6.4.3.3 EK280 Parameterization 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.com. a) Connecting the time window For the parameterization to work correctly, time windows 5 and 6 must be connected.
  • Page 61: Rs485 Interface, Without Electrical Isolation

    EK280 Application Manual d) Setting time window for potential data queries In the base configuration now displayed you can define time windows, during which data can be cyclically retrieved from the EK280 via the RS485 bus. Time windows 5 and 6 are reserved for EK280 operation with a direct terminal interface connection, and generally only time window 5 is used.
  • Page 62 EK280 Application Manual 6.4.4.2 EK280 jumpers X6: No jumper X5: two jumpers or one jumper on the pins located on the pins located near the terminals furthest from the terminals. 6.4.4.3 EK280 Parameterization 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.com.
  • Page 63: Data Transfer Verification

    EK280 Application Manual 6.5 Data transfer verification Prior to the actual data transfer, a communication link to the target must be established. You can program eight separate connections. For each of the eight connections it must be specified, when the data transfers should be executed (i.e. daily within a time window) and via which interface the EK280 is to transfer the data (i.e.
  • Page 64 EK280 Application Manual Display Description The interface is released specifically for the connection. The interface (i.e. the modem) is released from other connections for use. (i.e. when the time window is no longer open) Data transfer via DLMS protocol is in progress. Data transfer via DLMS protocol is complete.
  • Page 65: Modbus

    EK280 Application Manual 6.6 Modbus 6.6.1 Default settings Following Modbus register assignment is factory-set: Register Short LIS200 Designation / value Format Unit Address Desc. Address Bat.R Remaining battery life Months 2:404 Stat Momentary status total 1:100 Vm total, fractional digits 10-4 m3 4:302_2 Vb total, fractional digits...
  • Page 66: Formats

    EK280 Application Manual 6.6.2 Formats Meanings of formats used: Format Description Format Description Ushort, 16 Bit Array6, BCD, 12 Bit Ulong, 32 Bit Array8, BCD, 16 Bit Counter6 IEEEfloat, 32 Bit Array2, BCD, 4 Bit Code Format Number of registers a) binary formats: Number Value...
  • Page 67: Modbus Via Rs232 Interface

    EK280 Application Manual 6.6.5 Modbus via RS232 interface In the EK280 communication via the terminal interface in RS232 operation can be via Modbus amongst others. Values can be read and updated and archives can be retrieved. 6.6.5.1 Connection RS232 interface connection is described in chapters 6.4.1.1 and 6.4.1.2 6.6.5.2 EK280 Parameterization a) Parameterization for RS232 interface operation is described in chapter 6.4.1.3.
  • Page 68: Modbus Via Integrated Modem (Modbus Rtu_Tcp)

    EK280 Application Manual Addressing mode The Modbus addresses parameterized in the device are assigned according to logical addressing. Depending on the retrieval software used, it may be necessary to change the addressing in the protocol to physical addressing. = Logical addressing of the Modbus registers with addresses starting with 1. = Physical addressing of the Modbus registers with addresses starting with 0.
  • Page 69: Archive Reading Via Modbus

    EK280 Application Manual The following Modbus parameters are set by default via parameter file (see chapter 6.6.6.2, paragraph "a)"): Short Desc. Description Address Value Contents 2: RTU_TCP Transmission as for RTU mode MBTrM Transfer mode 2:7B1 with additional information for Modbus TCP protocol 0: H word first The most significant word is...
  • Page 70: Status Messages

    EK280 Application Manual 7 Status messages The EK280 gives two types of status information: Momentary status "Stat" (also referred to as "status") and status register "SReg". These are located on the "Admin." and "Serv." display tabs under “Status”. Messages in the "Stat" momentary status indicate current conditions such as pending errors. As soon as the condition is no longer present, the relevant message is removed from the momentary status.
  • Page 71: List Of Status Messages

    EK280 Application Manual 7.2 List of status messages Message Description, process a) Faults, alarms: Restart If this message appears whilst in operation, the device is faulty. Please contact Elster support. C-fact. err. The conversion factor could not be calculated as the measured gas temperature was outside -100°C to +100°C or no usable compressibility ratio factor was available.
  • Page 72 EK280 Application Manual Message Description, process Vb Warn Lim. The monitored volume at base conditions consumption value (standard: hourly consumption) is outside the set warning limit values. The monitored values and the warning limits can be adjusted using the configuration program "enSuite".
  • Page 73 EK280 Application Manual Message Description, process E2-HinwSig If an input has been configured as a signal input, this message will be displayed if E3-HinwSig. an active signal has appeared at the corresponding terminal (e.g. terminal DE2). E4-HinwSig. The input configuration can be adjusted using the configuration program "enSuite". E5-HinwSig.
  • Page 74: Batteries

    EK280 Application Manual 8 Batteries 8.1 Device battery life To obtain further information on other operation types listed below, please contact our applications team. 8.1.1 Standard operation In standard operation with no special settings or sensors the CPU battery life depends mainly on the duration and frequency of data transfer.
  • Page 75: Additional Pressure Or Temperature Sensors

    EK280 Application Manual 8.1.3 Additional pressure or temperature sensors Conditions: Batteries: ......2 battery packs Mode input 1: ....NF pulse input (mode1) Communication: ....Data transfer via modem with "Ring" signal, i.e. internal GSM modem or an analog modem connected to terminals Outputs: ......
  • Page 76: Output Isolation (Galvanic Separation)

    EK280 Application Manual 8.1.4 Output isolation (galvanic separation) Each of the four pulse and message outputs (terminals "DA1" to "DA4") can be isolated from the rest of the EK280 circuitry. Isolation of the outputs decreases the CPU battery life. It is therefore advisable, prior to isolation activation as described in these chapters, to estimate battery life.
  • Page 77: Modem Battery Life

    EK280 Application Manual 8.1 Modem battery life The modem battery life depends on various conditions such as ambient temperature and reception field strength. The data given here is calculated for adverse conditions, i.e. battery life is normally longer. It can however be even shorter in some cases.
  • Page 78: Data Transfer Duration In Modem Battery Operation

    EK280 Application Manual 8.2 Data transfer duration in modem battery operation 8.2.1 Data transfer duration depending on ambient temperature In battery operation the modem battery power is reduced during data transfer. At a low ambient temperature it is reduced more quickly than at a high ambient temperature. If the data transfer takes too long, the battery voltage falls below its minimum 3.2V and the data transfer is terminated.

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