4 Bypass valve V4
5 Oxygen valve V5
6 Flow regulating valve V6
7 Purge valve V3
8 ----
9 Exhaust valve V9
10 Valve V10
11 Solenoid valve V11
12 Solenoid valve V12
13 Solenoid valve V13
14 Gas outlet
15 Lance valve V2
16 Pressure switch
17 Oxygen pressure gauge 1,5 bar
18 Restrictor
19 Restrictor
20 Carrier gas flow meter
21 IR purge flow meter
22 Moisture trap after the furnace
23 CO
2
/ H
2
O – purification trap
24 Catalyst furnace
25 SO
3
- trap
26 H
2
O – trap
27 Dust filter
28 IR-cell
29 Gas pump
30 Attenuator before the pump
31 Attenuator after the pump
32 Resistance furnace
33 Induction firnace
34 Furnace input flow meter
35 Furnace inlet-oxygen
36 Furnace outlet measuring gas
37 Flow sensor
Detailed explanation of the faults indicated in the flow diagram
1. Blockage of the lower connection of the glass tube (22)
The bore hole of the lower connection of the glass tube (22) can get blocked when there
isn’t enough quartz wool at the bottom end of the glass tube (22) enabling fine particles of
the magnesium perchlorate to fall into the bore blocking it. It is therefore absolutely
important to fill the glass tubes exactly according to the Instructions. See Operation
Manual “Filling the reagent tubes”.
Holes of other reagent tube connectors need to be cleaned from inside and outside of the
analyzer, due to the fact that the passage is not straight, but vertical outside and
horizontal inside the analyzer.
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