Metrohm 838 Advanced Sample Processor Manual - Manual (Page 94)

3.8 Standard methods
86 Metrohm 838 Advanced Sample Processor, Appendix
3.8.3 Method "DT"
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.
Run sequences for the 838 Advanced Sample Processor
838 Advanced S.Proc. 00030 5.838.0010
parameters
method DT
number of samples: 20
>start sequence
1 CTL:Rm: INIT
2 MOVE 1 : sample
3 CTL:Rm: *************1
4 CTL:Rm: *************0
>sample sequence
1 SCN:Rm : *****1**
2 MOVE 1 : sample
3 LIFT: 1 : work mm
4 CTL:Rm: *************1
5 CTL:Rm: *************0
6 SCN:Rm : *****1**
7 DOS: 1.* : 50 mL
8 CTL:Rm: *************1
9 CTL:Rm: *************0
10 DOS: 1.* : fill mL
>final sequence
1 SCN:Rm : *****1**
2 MOVE 1 : next
3 LIFT: 1 : work mm
4 CTL:Rm: *************1
5 CTL:Rm: *************0
>changer settings
>stirring rates
>dosing unit def.
>timeout settings
>manual stop
- 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 -----
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-