3 the keys, The keys – Metrohm 838 Advanced Sample Processor Manual User Manual

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2.1 Operating principles

Metrohm 838 Advanced Sample Processor, Operation

tering parameters. For entering parameters the numerical block on the

right-hand side of the keypad is also available.
The lowest row of keys (, , ) are used

for the direct control of a method sequence.
If the Sample Processor is integrated in a PC-controlled automation

system and is entirely controlled via the RS232 interface, it is possible

to operate the instrument without the keypad.

2.1.3 The

keys

The menu keys

CONFIG

The key opens the selection menu for the configuration

of the Sample Processor.

PARAM

The key opens the selection menu for editing the run se-

quences and method parameters.

USER

METHOD

The key opens the selection menu for opening, sav-

ing and deleting default or user-defined methods.

Lift operation and sample positioning keys

With the < > and < > keys the lift can be moved up and down

respectively. The lowest possible lift position is defined by the configu-

ration parameter '

max. stroke path

In the editing mode the arrow keys < > and < > are used

for navigation in the particular menu or submenu.

HOME

END

With the key the lift is returned to the rest position (0 mm),

i.e. to the uppermost stop.

In the editing mode the and keys move to

the first and last line of the menu or submenu respectively.

With the < NEXT> and < PREV> keys the sample rack can be

rotated forward or backward by one position. If necessary, the lift is

automatically raised to the shifting position. When the rack position

has been reached the robotic arm will automatically be aligned to the

corresponding rack position.

During data input the