Elster EK260 - Page 4

Volume Conversion Device EK260
4 Elster GmbH
4.6 Application in areas subject to explosion hazards ................................................. 93
4.6.1 Applications in Zone 1................................................................................................ 93
4.6.2 Applications in Zone 2................................................................................................ 93
4.7 Applications for Interface 2 .................................................................................... 94
4.7.1 Modem with control signals (standard modem) .......................................................... 94
4.7.2 Modem without control signals................................................................................... 94
4.7.3 FE260 Function Expansion with modem ....................................................................95
4.7.4 FE260 Function Expansion without modem ............................................................... 95
4.7.5 FE230 Function Expansion with modem ....................................................................95
4.7.6 Printer on the EK260 or on an FE260.........................................................................96
4.7.7 Other device with RS232 interface (e.g. PC).............................................................. 96
4.7.8 Modbus protocol.........................................................................................................96
4.7.9 Sending short messages by SMS...............................................................................97
4.7.10 Standard output data records for process data ("three-minute values")...................... 97
5 Installation and maintenance ................................................................................... 99
5.1 Installation procedure ............................................................................................ 99
5.2 Mounting.............................................................................................................. 100
5.2.1 Wall mounting ..........................................................................................................100
5.2.2 Meter superstructure................................................................................................ 101
5.3 Cable connection and earthing ............................................................................ 102
5.4 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 encoder.................................................................................... 109
5.8 Seals.................................................................................................................... 109
5.8.1 Seal layout of basic device....................................................................................... 110
5.8.2 Seal layout of temperature sensor............................................................................ 112
5.8.3 Sealing layout of pressure sensor ............................................................................ 113
5.9 Battery replacement............................................................................................. 114
A Approvals................................................................................................................. 116
A.1 EC Declaration of Conformance .......................................................................... 116
A.2 Approval for Ex Zone 1........................................................................................ 117
B Technical data ......................................................................................................... 122
B-1 General data (mechanical, terminals, ambient conditions) .................................. 122
B-2 Batteries .............................................................................................................. 122
B-3 External power supply ......................................................................................... 123
B-4 Pulse, status and encoder inputs......................................................................... 123
B-5 Signal and pulse outputs ..................................................................................... 124
B-6 Optical serial interface ......................................................................................... 124
B-7 Electrical serial interface (internal)....................................................................... 124
B-8 Pressure sensor .................................................................................................. 125
B-9 Temperature sensor ............................................................................................ 125
B-10 Measurement uncertainty .................................................................................... 125
C Index......................................................................................................................... 126