multi EA 4000
Operation
79
With
an automatic sample ID can be created.
A
NALYSIS TYPE
Selection of the analysis type (S
AMPLE
,
D
AILY FACTOR DETERMINATION
,
C
ALIBRATION MEASUREMENT
,
AQA
MEASUREMENT
or
D
ET
.
BOAT BLANK
)
N
OMINAL VALUE
Target concentration for calibration standards or AQS standard
O
PERANDS
Input of the sample weight
Populate the autosampler. Use the
and
buttons to move the sample
rack to the desired position.
Click on in the sequence row to release it for analysis. All sequence rows can
be released by clicking on the
button.
Sequence rows released for analysis have a green fill.
12.
Click on [S
TART MEASUREMENT
].
For measurements with manual sample feed an additional input window is shown
before each measurement start to enter the sample weight.
The analyzer starts processing the analysis sequence. The M
EASUREMENT
–
A
NALYSIS
window opens.
In the sample in
boat 1
the elementary carbon (EC) is determined. Prior to the
measurement of
boat 1
the automatic deactivation of the intake pump and the
change-over from oxygen to argon takes place. Now set the argon flow at the
Ar/O
2
r
otameter to 2.3–2.5 l/min. This flow configuration is retained for the
subsequent pyrolysis measurement.
The sample in
boat 1
is first pyrolized in the argon flow after expiry of the
waiting period (flushing the combustion tube with argon). In the process the
volatile parts of the carbon compounds contained escape at the selected tem-
perature. Ideally and / or after appropriate pretreatment the elementary car-
bon (EC) remains on the boat.
After pyrolysis the change-over to oxygen takes place and the intake pump is
activated again. The share of the remaining carbon (EC) in the already pyro-
lized sample is determined through combustion in the oxygen flow.
The sample in
boat 2
is moved into the oxygen flow for the determination of
the total carbon content (TC).
From the difference of the two measurements obtained (TC and EC) the vol-
ume of degradable or active carbon can be derived.
During extended measurement interruptions, the gas supply can be deactivated in the
multiWin program to save oxygen. However, the oxygen supply must be re-activated
in good time (approx. 10 min.) before starting the measurement.
Summary of Contents for Analytik Jena multi EA 4000
Page 1: ...Operating Manual multi EA 4000 Elementary analyzer C S and Cl solids analysis...
Page 50: ...Commissioning multi EA 4000 50 Figure 32 multi EA 4000 C S Hose diagram...
Page 52: ...Commissioning multi EA 4000 52 Figure 33 multi EA 4000 Cl Hose diagram...
Page 54: ...Commissioning multi EA 4000 54 Figure 34 multi EA C S Cl for C S measurements Hose diagrams...
Page 55: ...multi EA 4000 Commissioning 55 Figure 35 multi EA 4000 C S Cl for Cl measurements...
Page 57: ...multi EA 4000 Commissioning 57 Figure 36 Automatic TIC solids module Hose diagrams...
Page 58: ...Commissioning multi EA 4000 58 Figure 37 multi EA 4000 C S with automatic TIC solids module...
Page 61: ...multi EA 4000 Commissioning 61 Figure 39 multi EA 4000 C S Cl with man TIC solids module...
