Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 133)

3 Operation
PC Control / Touch Control
121
3.16.7 Start and stop options
Under Method options/Start/Stop options you can switch various
start and stop options on and off.
Under [Start options] you can switch off the Method check, which is
carried out automatically after the START of a determination. This
avoids delays after the START. The Method check verifies whether all
devices, titrants and sensors which are necessary for the run are
present and whether monitoring intervals for the titrants and sensors
used have expired.
Note!
We recommend that you only switch Method check off when the
titration must be started directly after the START of the determination.
For example, this is the case with very rapid reactions such as
enzyme-catalyzed reactions. Otherwise the determination sequence
could be interrupted because e. g. devices, titrants or sensors are not
present and available for the determination. Even if the Method check
is switched off then the monitoring intervals for titrants and sensors will
be checked during the run anyway.
If a USB Sample Processor is used then you can choose whether the
rack is to be reset (see Section 4.12.4) at the start of a method or not.
With Check rack you can select a rack that must be present when the
rack is reset. If a different rack is found then a corresponding error
message will be produced. In this way you can make sure that a
method is only carried out with this particular rack. If the sample
variable at the end of a determination is not to be automatically
increased by the value 1 then you can switch off the function Increase
sample variable automatically. This is important if, for example, you
want to selectively influence the sample variable by using the SAMPLE
command (see Section 4.12.5). If the rack position of the first sample
should be requested at the start of the method then activate the
parameter Request rack position at start.
Under [Stop options] you can switch the actions on and off that are
to be taken when a method is stopped. A method can be stopped in
the following ways: