Metrohm 730 Sample Changer - Manuel (Page 39)

3.2 Configuration
730 Sample Changer, Introduction 36
Device label
To make every laboratory instrument unique (a requirement of
GLP) the sample changer can be assigned an alphanumeric
8-place identification (consisting of letters and/or digits). The entry
of the text is explained in detail on page 79.
Program version
The program version (instrument software) cannot be altered. The
version is indicated for your information in the configuration menu.
Max. lift way
The maximum lift way is an important safety entry. If the entry is
correct, you can be sure that the lift with the titration head cannot
be run too low, which could lead to damage to electrodes or sam-
ple beakers. Here the lowest possible lift position (measured from
the upper limit) can be entered in mm.
An easy method for determining this position is to first set the de-
sired height manually (normal state) using the <ê> and <é> keys.
Afterwards the configuration menu can be opened and the current
lift position taken over in the display by pressing the <CLEAR> key
at the menu entry 'max. lift way'.
Important: The value entered only becomes valid after the in-
strument is switched off and on again.
Number of pumps tower 1 and 2
Here the number of pumps installed on every tower present must
be indicated. This entry also becomes effective only after the
changer is switched off and on again.
Swing head
When a 759 Swing Head is installed to increase the number of
samples, the swing head is switched on here. Otherwise the de-
fault entry 'swing head: OFF' is retained. The swing head is
switched on or off only after RESET or after the instrument is
switched off and on again.
Beaker sensor
Each tower of the 730 Swing Head is equipped with an infrared
sensor, which detects the presence of a beaker in front of the par-
ticular tower. If the beaker sensor is switched on, the test is per-
formed after each MOVE-command. When triple-row sample
racks in combination with the swing head are used, the beaker
sensor has to be switched off. For the use of special racks, it has
to be checked in each case whether the beaker sensor should be
used. This entry also becomes effective only after the changer is
switched off and on again.