4
4.8 Electrical serial interface ...................................................................................... 28
4.8.1 RS485 type ................................................................................................... 28
4.9 Supported protocols ......................................................................................... 28
4.10 Operating conditions ............................................................................................ 29
4.10.1 Environment .................................................................................................. 29
4.11 Identification ........................................................................................................ 30
4.11.1 Type plate and EX identification .................................................................... 30
4.11.2 Device software identification........................................................................ 30
5 Construction and function .................................................................. 31
5.1 External view ....................................................................................................... 31
5.2 Internal view ........................................................................................................ 31
5.3 Brief description ................................................................................................... 32
5.4 Connections ......................................................................................................... 32
6 Installation, connection and commissioning .................................... 33
6.1 Installation ........................................................................................................... 33
6.1.1 Installation on a gas meter ............................................................................ 33
6.1.2 Installation on a pipeline ............................................................................... 34
6.1.3 Installation on a wall ...................................................................................... 34
6.1.4 Three-way cock ............................................................................................. 35
6.2 Connection .......................................................................................................... 36
6.2.1 Cable glands ................................................................................................. 37
6.2.2 Connecting gas meters ................................................................................. 37
6.2.3 Lead-sealing of the input terminals ............................................................... 37
6.2.4 Connect temperature sensor......................................................................... 38
6.2.5 Connect pressure line ................................................................................... 39
6.2.6 Connecting the power supply ........................................................................ 39
6.2.7 Connect outputs of the EK205 ...................................................................... 40
6.3 Commissioning .................................................................................................... 41
6.3.1 Setting the operating parameters .................................................................. 41
6.3.2 Sealing .......................................................................................................... 47
6.3.3 Close housing ............................................................................................... 49
6.3.4 Check installation and connection ................................................................. 49
6.3.5 Data transfer ................................................................................................. 49
7 Operation ............................................................................................. 50
7.1 Safety .................................................................................................................. 50
7.1.1 Personal protective equipment...................................................................... 50
7.2 Operating staff ..................................................................................................... 50
7.2.1 Trained individual .......................................................................................... 50
7.2.2 Specialist ...................................................................................................... 50
7.2.3 Calibration officer .......................................................................................... 50
7.3 Basics .................................................................................................................. 51
7.3.1 Display .......................................................................................................... 51
7.3.2 Functions of the keys .................................................................................... 52
7.3.3 Calling up the data, navigation in the display ................................................ 53
7.3.4 Meaning of the status symbols...................................................................... 54
7.3.5 Error messages when entering values .......................................................... 55
7.3.6 Access rights................................................................................................. 56
7.4 Content of the data register ................................................................................. 58
7.4.1 Access rights................................................................................................. 58