Metrohm 774 - Preparing the Instrument

6 Appendix
774 Oven Sample Processor, Instructions for use
144
6.4.2 Preparing the instrument
• Disconnect the cables to the RS232 and Remote interfaces.
• Switch the power on and immediately press key <9> and keep it
pressed until the power-up test pattern disappears.
Switch on and
9
LIFT
drücken.
Main menu Diagnosis:
diagnosis
>RAM initialization
Open the sub-menu with <ENTER>
diagnosis
>RAM test
Move one menu item down or up with <Ï > or <Ð>
diagnosis
>display test
Move to the first resp. last menu item with <HOME> or
<END>
diagnosis
>display contrast test
Return to basic state with <QUIT>
diagnosis
>key test
diagnosis
>remote test
diagnosis
>RS232 test
diagnosis
>external bus test
diagnosis
>beeper test
diagnosis
>rack code test
diagnosis
>function test *
diagnosis
>instrument number *
diagnosis
>oven test *
diagnosis
>instrument adjustment *
diagnosis
>measure test *
diagnosis
power on reset
* These tests are reserved for servicing personnel.