1.4 Working with several dosing units
799 GPT Titrino: Getting started
10
1.4 Working with several dosing units
Here you will learn how to work with several dosing units.
Several dosing units can be used
•
if a working station will be permanently installed for
specific analysis, e.g. having a dosing unit specially
prepared for Karl Fisher titrations
•
if several titrations are being carried out in the same
sample. The linking of various methods is possible
with TIP (
Ti
tration
P
rocedure), see page 85 of the In-
structions for Use.
•
for addition of auxiliary solutions
Selection of the dosing unit in the titration method
The dosing unit is selected in the method. The method
runs always with the selected dosing unit.
Connect the dosing unit D1 and arm it with an Exchange
Unit (the Dosino with a Dosing Unit, resp.).
<PARAM>
<ENTER>
<
↓
>
<
←
> or <
→
>
<ENTER>
2 x <QUIT>
Recall the method "HCl" from the user memory: Press
<USER METH>, then <ENTER>.
Select the method name "HCl" with the keys <
←
> or
<
→
> and recall the method with <ENTER>.
The dosing unit of this method is D0, i.e. the Titrino itself.
To change the dosing unit, press <PARAM>, then
<ENTER>. You are now in the inquiry group ">titration
parameters".
Place the cursor on "dos.element:".
Choose the dosing unit with keys <
←
> or <
→
>:
internal D0: Dosing unit of the Titrino
external D1: External dosing unit, connected to 1 or 2.
Choose e.g. "external D1", confirm the input with <EN-
TER> and quit with the key <QUIT>.
The display shows now e.g. "DET pH D1 HCl". D1
means, that in this method the external dosing unit D1 is
being used.
Start the method.
After the titration "D1a" appears in the display. "a" means
"active", the dosing unit D1 is now active.
DET pH D1 HCl
parameters
>titration parameters
dos.rate. max. ml/min
signal drift 50 mV/min
equilibr.time 26 s
start V: OFF
pause 0 s
dos.element:
internal
D0
