multi EA 5100
Carbon analysis with the TOC module 5100
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1
2
Figure 60Condensation coil
1 FAST connector
2 Spherical joint
The detection module is equipped with the TIC condensation unit. The TIC condensation
unit consists of the following components:
Component
Task
TIC reactor
TIC determination
Gas-liquid separator
Separation of the liquid phase (conden-
sate, waste solution from TIC determi-
nation)
Cooling block
Water vapor condensation (measuring
gas drying)
The mixture of measuring gas and water is added via the lateral outlet of the TIC reactor
via hose 80.
40 % phosphoric acid is placed in the TIC reactor to determine TIC content. The acid and
the sample are added manually via the front connection with septum.
The measuring gas is routed via the top connector in the direction of the water traps
from the TIC condensation vessel.
The condensate or waste solution from TIC determination is pumped out via the lateral
outlet on the glass container. The condensate pump transports the waste to the "waste"
outlet on the rear of the device.
The two following components protect the detector and remove disruptive substances
from the measuring gas.
¡
Water traps
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Halogen trap
Two water traps are installed in the TOC module. They remove water from the measur-
ing gas. The water traps are connected to the measuring gas outlet of the TIC reactor.
The water traps prevent condensed water from being transported into the path of the
measuring gas after leaving the TIC condensation unit. The larger water trap (TC pre-
filter) retains aerosols during operation. The smaller water trap retains rising water (dis-
posable retention filter).
The halogen trap removes gaseous halogen compounds from the measuring gas. The
halogen trap is installed in the measuring gas path downstream of the water traps. The
U-tube is filled with special copper wool. The filling of the halogen trap must be replaced
at the latest when half of the copper wool has turned black.