Metrohm 730 Sample Changer - Manuel (Page 44)

3.2 Configuration
730 Sample Changer, Introduction 41
Locking the entire keyboard
If, during routine use, only one particular method is to be used, it
may be desirable to block manual manipulations on the changer.
All the keys on the keyboard can be locked for this purpose. The
<START>, <STOP> and <CLEAR/RESET> keys however, remain
operable so that it is still possible to start and stop a method. This
can also be beneficial when using the sample changer with a PC-
software (for example, TiNet or Workcell). For this application the
keyboard may be disconnected.
'lock keyboard: ON' locks all the keys on the keyboard
(for exceptions, see above).
Locking the configuration
The basic configuration of the changer can be protected from
overwriting. All settings of the configuration menu are no longer
accessible at this point.
'lock config: ON' locks the <CONFIG> key.
Locking parameters
If user methods are generally used, it might be wise to protect the
stored method parameters from alteration. The parameter menu
can then be made inaccessible.
'lock parameters: ON'
locks the <PARAM> key.
Locking the method storage function
It makes sense to prevent the inadvertent deletion of stored meth-
ods. Method deletion should only be made possible by consciously
turning off the locking function.
'>user methods'
+ <ENTER> opens the submenu for locking
method storage functions.
'lock method recall: ON' blocks the loading of methods.
'lock method store: ON'
blocks the storage of methods.
'lock method delete: ON' blocks the deletion of methods.
Switching off the display
If the sample changer is to be operated exclusively by an external
control software (see above) the display for manual operation can
be switched off.
'lock display: ON' switches off the display.