multi X 2500
AOX determination
61
1.
Fill the sulfuric acid container (vertical) with fresh sulfuric acid every day. If
necessary, remove any used quartz containers from the open combustion tube and
clean it.
2.
Preparing the measuring cell:
Fill the measuring cell with fresh electrolyte solution every day.
Measuring cell "sensitive": 15 to 20 ml
Insert the magnetic stirring rod into the measuring cell. Attach the cover and
tighten it using the three knurled head screw.
Insert the combined electrode into the designated opening and connect it
electrically. Electrically connect the measuring cell.
Connect the gas transfer hose from the sulfuric acid container in the basic
device to the combined electrode. Connect the hose for the adsorption tube
(hose no. 5) via the olive-tip suction adapter to the measuring cell "sensitive".
3.
The analyzer and the chlorine module are switched on.
The devices are booted. The status LEDs on the front panel lights up in green
after approximately 30 seconds.
4.
Open the oxygen supply and set the primary pressure to 4 to 6 bar.
5.
Switch on the PC.
6.
Start the control and analysis software multiWin and log in with user name and
password.
7.
Initialize the analysis system by clicking on [
INITIALIZE ANALYZER
].
The initialization and automatic detection of all connected components will be
executed.
In the window D
EVICE STATUS
any components not yet ready for operation will be
shown in red. The time it takes to preheat the furnace to 950 °C is about 30 to
40 min. During the warm-up phase it is not possible to start a measurement.
If the analyzer is still not ready for measurements after about 40 min., carry out a
fault analysis in accordance with the notes in chapter "Fault removal" on page 106.
8.
Carry out the end point routine for the measuring cell.
9.
If necessary, test the measuring cell using a direct method.
10.
Prepare the samples for the manual sample introduction.
Depending on the sample preparation, these samples may be quartz containers
with loaded activated carbon (column method) or frit containers with filter and wet
filter cake (batch method).
11.
Create a new method under M
ETHOD
M
ETHOD NEW
and release it.
12.
Activate the new method or an already existing method using the menu command
M
ETHOD
M
ETHOD
–
ACTIVATE
.
13.
Starting the measurement:
Select S
TART
S
TART
-A
NALYSIS
.
Select an analysis group or create a new one.
Содержание Analytik Jena Multi X 2500
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