Construction and Function 31
4.3 Short description
The volume conversion device EK280 is an explosion-protected electronic
device that takes the volume of gas determined by an external meter at
measurement conditions to calculate the volume at base conditions and
therefore the energy portion of the respective gas volume.
Furthermore, the gas flow of a pipeline can be monitored, recorded and
transmitted by means of the recording function, the signal inputs and out-
puts, as well as the serial and optical data interfaces of the device.
Recording the necessary state variables for this purpose takes place via an
externally or internally connected pressure sensor as well as a temperature
sensor. An alphanumeric display and a keyboard on the front panel of the
device serve as the control elements for the EK280.
4.4 Connections
The EK280 volume correcter can be connected to:
Four batteries
An external power supply
The following can be used to monitor and record the calculated data and to
transmit data and program functions:
Six counting and signal inputs DE1, DE2, DE3, DE4, DE5, DE6
Four pulse and signal outputs DA1, DA2, DA3, DA4
Serial data interface
Optical data interface
Further details on the connection possibilities for the EK280
and the available equipment versions can be found in the
"Technical Data" chapter and in chapter
"
Assembly, Connection and Putting into Operation".
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