Metrohm 838 Advanced Sample Processor Manual - Manual (Page 38)

2.3 Composition of a method
30 Metrohm 838 Advanced Sample Processor, Operation
>dosing drive 1
drain port 4
Define standard air inlet for emptying the
Dosing unit
1…4
>dosing drive 1
cock direction: auto
Direction of rotation of Dosino stopcock
auto
not over
desc.
asc.
= cock direction according to shortest path
= never turn beyond port given below
= cock rotation always in descending direction
= cock rotation always in ascending direction
>dosing drive 1
not over port 4
Protected port, that it not to be moved
over during a stopcock rotation
1…4 (see above)
2.3.5 Behavior during timeout
Metrohm Sample Processors are designed to communicate with other
instruments. In particular, this includes the coordination between the
Sample Processor and devices connected to it. In the method se-
quence the SCAN command can be used to check whether an instru-
ment is ready or to ask for an acknowledgement after a measurement
has been made. However, it may happen sometimes that problems oc-
cur during a determination run and that the expected signal from the
connected instrument is not received. This is known as a timeout.
This means that it is possible to define a maximum waiting time that will
always be allowed to elapse if a timeout occurs. In addition, the behav-
ior of the Sample Processor when this waiting period has elapsed
(SCAN timeout) can also be defined.
parameters
>timeout settings
Submenu for behavior if a SCAN timeout occurs
Open the submenu with <ENTER>
>timeout settings
SCAN timeout: OFF min
Waiting time if a SCAN timeout occurs
off,0…999 min
When the waiting time has elapsed the function defined below will be carried
out.
>timeout settings
on SCAN timeout: error
Behavior if SCAN timeout occurs
error,continue
If error is set then the run sequence will be interrupted and an error mes-
sage will be shown. Otherwise the sequence will be continued.