Disabling Keypad Functions; Disable Whole Keypad; Disable Configuration; Disable Parameter - Metrohm 838 Advanced Sample Processor Manual

3.4 Disabling keypad functions

3.4 Disabling keypad functions
3.4.1

Disable whole keypad

3.4.2

Disable configuration

3.4.3

Disable parameter

72
• Accept the value with the <ENTER> key (or start the LEARN function
again)
• The LEARN LED goes out; the next command line appears
The LEARN function is available for the following commands:
Command Adaptive parameter
LIFT Lift position in mm
PUMP Pumping time in s
STIR Stirring time in s
WAIT Waiting time in s
DOS Dosing volume in mL
SCN Rm Status of 8 Remote lines
SCN RS Received character string
Certain user dialog areas can be made inaccessible to untrained users.
Various dialog areas or keys can be disabled. For example, this can be
used to prevent a method from being overwritten accidentally or pa-
rameters from being altered.
The
>keyboard options
by keeping the <CONFIG> key pressed down when the Sample Proc-
essor is switched on. This menu can still be accessed even if the whole
keypad has been disabled.
The individual key functions that can be disabled are:
In routine work, if only a single particular method is used, it may be ad-
visable to prevent manual manipulations on the Sample Processor. For
this reason it is possible to disable (almost) all the keypad keys. The
<START>, <STOP> and <CLEAR/RESET> keys always remain
accessible, so that it is always possible to start and stop methods.
lock keyboard:
ceptions).
The configuration of the Sample Processor can be protected against
being overwritten. All the settings in the configuration menu and it's sub-
menus can then no longer be accessed.
lock <CONFIG>:
If user-defined methods are normally used then it may be advisable to
prevent the stored method parameters from being overwritten. The pa-
rameter menu and it's sub-menus can be made inaccessible.
lock <PARAM>: ON
menu for the corresponding settings is opened
disables all the keypad keys (with the above ex-
ON
disables the <CONFIG> key.
ON
disables the <PARAM> key.
Metrohm 838 Advanced Sample Processor, Appendix
Type of function
absolute
additive
additive
additive
additive
"live" value
"live" value