5 boric acid / end point titration – BUCHI KjelFlex K-360 User Manual
Page 38
6 Operation
38
KjelFlex K-360 Operation Manual, Version C
Table 6-1: Titrator settings
Titrator present Configuration
Signal ready Signal active
Signal end Baud
Data bit
Parity
Stop bit
1
e.g. Mettler Toledo DL 15/22
Low
No
RS232
9600
8
no
2
2
e.g. Mettler Toledo T50/Txx
No
No
RS232
4800
8
even
1
3
e.g. Metrohm Food Titrino
DMP785 / 719 / 702
No
No
RS232
9600
8
no
1
4
e.g. Schott TitroLine Easy
No
RS232
RS232
4800
7
no
1
5
e.g. Radiometer TitraLab 840
Low
High
Low
9600
8
no
1
6
e.g. Metrohm 848 Plus
Low
High
RS232
19200 8
no
1
Custom
other titrators
When you have selected “Custom” you can enter the corresponding settings via the arrow buttons
and press Save to store them.
At the moment there are the following titrator types that enable a signal transfer and thus an automatic
result display in the K-360 software:
Mettler Toledo DL 15 / 22 / Txx
•
Schott TitroLine Easy
•
Metrohm Titrino DMP 785 / 719 / 702 / 848 Plus
•
To assure a correct signal transfer, the respective titrator has to be configurated according to the
Büchi specifications.
6 .4 .5
Boric acid / end point titration
Receiving vessel: see chapter 5.6
Titrant: see chapter 5.6
It is recommended to use boric acid solution 4%, adjusted to pH 4.65 and standardized sulfuric acid
solution.
Titrate the distillate with sulfuric acid standard solution to the end point of pH 4.65.
Defining settings to work with a titrator
Configuration > Settings > Rec Vessel present: Yes
Configuration > Titrator: Titrator present: (1, 2, 3, 4, 5, 6, Custom)
Methods > Select the corresponding method from the method list and press Enter
> Aspiration Sample: Yes
> Aspiration Rec. Sol’n: Yes
Defining settings without a titrator
Configuration > Settings > Rec Vessel Present: No
Configuration > Titrator: Titrator present: No
Methods > Select the corresponding method from the method list and press Enter
> Aspiration Sample: Yes