Construction And Function; Gas Volume Corrector; Casing And Control Panel - RMG EC 900 Operating Instructions Manual

CONSTRUCTION AND FUNCTION

..........................................................................................................................................................................................................
Construction and function

Gas volume corrector

Casing and control panel

4
The electronic system and pressure transmitter of the EC 900 are fitted into an aluminium casing.
On the front, there is a 128 x 64 dot matrix display where alphanumeric characters can be dis-
played in 6 lines with 20 characters each.
To operate the device, there are 4 arrow keys, an Enter key and an Esc key. The arrow keys are
mainly used to navigate within the operating menu; the Enter key will take the user to lower menu
levels or initiate a parameter change; pressing the Esc key will cause the user to jump back to
higher menu levels.
The display of mains-powered devices is lit. The lighting will automatically turn itself on after a key
has been pressed and will turn itself off 30 seconds after the last key has been pressed. If no key is
pressed during two minutes, the display will automatically return to displaying totalizers.
..........................................................................................................................................................................................................
Display field
Infrared inter-
face
Pressure con-
RS 232 / RS 422
/ RS 485 inter-
face