Method "Dt - Metrohm 838 Advanced Sample Processor Manual

3.8 Standard methods
3.8.3

Method "DT"

Run sequences for the 838 Advanced Sample Processor
838 Advanced S.Proc.
parameters
method
number of samples:
>start sequence
1 CTL:Rm:
2 MOVE 1 :
3 CTL:Rm: *************1
4 CTL:Rm: *************0
>sample sequence
1 SCN:Rm :
2 MOVE 1 :
3 LIFT: 1 :
4 CTL:Rm: *************1
5 CTL:Rm: *************0
6 SCN:Rm :
7 DOS: 1.* :
8 CTL:Rm: *************1
9 CTL:Rm: *************0
10 DOS: 1.* :
>final sequence
1 SCN:Rm :
2 MOVE 1 :
3 LIFT: 1 :
4 CTL:Rm: *************1
5 CTL:Rm: *************0
>changer settings
>stirring rates
>dosing unit def.
>timeout settings
>manual stop
86
DT = Dilution Titration
Application
Suppressor determination
System setup
See 8.838.1303 Installation Instructions, Section 3.6 or 8.797.1013
Hardware Manual of the 797 VA Computrace, Section 2.11.3.
00030 5.838.0010
DT
20
INIT
sample
*****1**
sample
work mm
*****1**
50 mL
fill mL
*****1**
next
work mm
Note: The command lines 6 to 10 are only necessary, if a dosing
drive is connected to the Sample Processor for adding auxiliary solu-
tion. In the 797 VA Computrace software the parameter "Dose auxil-
iary solution via sample processor" in the configuration dialog
"Settings / General settings / Automation" must be activated.
If adding of auxiliary solution is operated by the 797 VA Computrace,
line 6 to 10 have to be deleted.
Using the method above, it is assumed that dosing drive 1 adds the
VMS solution. The volume added in method line 7 of the sample se-
quence has to be adapted to the specific application. It is recom-
- report header with instrument ID and program version
- method name
- number of samples (e. g. 20)
- initialize all Remote lines
- approach first sample
- remote start of the 797 VA Computrace
- wait for advance signal of the 797 VA Computrace
- approach sample
- run lift and needle to work position
- set Remote line: Sample ready
- wait for advance signal of the 797 VA Computrace
- add auxiliary solution (e. g. VMS) with Dosino
- set Remote line: auxiliary solution ready
- fill dosing unit
- wait for advance signal of the 797 VA Computrace
- approach next rack position
- run needle to work position
- set Remote line: cleaning solution ready
----- miscellaneous settings -----
Metrohm 838 Advanced Sample Processor, Appendix