Metrohm 730 Sample Changer - Manuel (Page 72)

4.2 The Keyboard
730 Sample Changer, Detailed Description 69
Key Normal State Editing
• This function refers to the
pumps of the current tower
at any given time. With
<SELECT> you can switch
between the towers (only
with the 2-tower variant).
• The state of all available
pumps is shown in the
second display line in the
normal state, e.g. PUMP
–+–+; + means "switched
on" and – means
"switched off").
• It is only possible to switch
on at most 2 pumps simul-
taneously at any time.
5
STIR Control stirrer
• The <STIR> key is used to
turn stirrers 1 to 4 on or
off. When the stirrer num-
ber is entered the state of
the selected stirrer is re-
versed, i.e. if the stirrer is
currently off, it will be
switched on and vice
versa.
• The state of all available
stirrers is shown in the
second display line in the
normal state.
• The stirring speed can be
set with the <DEF> key or
in the parameter menu.
Numerical entry ('5')
or
Control stirrer
• The stirrers can be specifi-
cally turned on and off in a
sequence or set to operate
for a fixed amount of time
(in seconds).
• The stirrer speed can be
controlled within a program
using the DEF command to
change it (see below).