257 >prep – Metrohm 746 VA Trace Analyzer User Manual
Page 408
5.7.3 Alphabetical instruction list
746 VA Trace Analyzer / 747 VA Stand
5-257
>PREP
Page:
O
Stand:
A
Abbreviation:
>
Instructions t/s Main parameters Auxiliary parameters
––––––––––––– ––––– ––––––––––––––––––––––––– –––––––––––––––––––––––––
## .. >PREP .....
Function
Call-up of the block for sample preparation on the 695 Autosampler.
Description
The
>PREP
instruction starts the instructions defined in the PREP block
(PREP ... PREP)
for sample preparation on the sample rack of the 695
Autosampler paralleling measurement. As soon as the program running
for the current sample in the measuring vessel allows, the instructions
are executed with the following sample on the sample rack of the 695
Autosampler.
Comments
•
The
>PREP
instruction can be used only in operation with the 695
Autosampler.
•
A PREP block runs only when the automatic series determination
(
Auto.batch = on
) on the "MONITORING" page is switched on and if
the same method is used as for the previous sample.
•
If the automatic transfer of sample data is switched on (
Auto.samples
= on
), the PREP block is executed with the next sample entered on
the "SAMPLES" page at the position on the sample rack specified
under
Pos.
. The sample data of this sample appear on the 2
nd
sample data line on the "MONITORING" page.
•
If the automatic transfer of sample data is switched off (
Auto.samples
= off
), the sample preparation block is automatically executed with
the next sample on the sample rack.
•
If a voltage is applied to the electrodes in the measuring vessel (by
MEAS
or
SWEEP
instructions), no instructions from the PREP block can
be executed. As the voltage is retained on completion of the
MEAS
or
SWEEP
instruction, this is not possible within a program until the volt-
age has been switched off with
ØMEAS
.
•
Instructions from the PREP block which need the functions of the 695
Autosampler can not be executed simultaneously with instructions
from the main program which also use such functions (e.g.
DOS>M
,
RINSE
).
•
Instructions of the PREP block which have not yet been executed at
the end of the program are then run to completion.
Example
see
(PREP
see also
(PREP, PREP)