Endress+Hauser Analytik Jena multi EA 4000, Operating Manual

Page: 113 / 151

multi EA 4000 Maintenance and care
113
7.2.4 Replace the halide trap
Halide traps are used in the following measurement arrangements:

TC measurement at the multi EA 4000 basic device

Cl measurement in the Cl module

TIC measurement: in the corresponding TIC solids modules
NOTICE
Risk of damage to optical and electronic components (detectors, flow sensors) from
aggressive combustion products if the copper wool in the halide trap is used up!
Replace the complete filling of the halide trap as soon as half of the copper wool or the
brass wool is discolored.
1 Gas inlet (hose no. 4)
2 Gas outlet (hose no. 5
3 Clamp
4 Brass wool
5 Copper wool
1. Unscrew the red union nuts from the U-tube and pull the U-tube out
of the clamps (3).
2. Pull out the depleted copper wool or brass wool from the U-tube
with a tweezers or a small hook.
3. Inspect the U-tube for cracks.
Only reuse a fully intact U tube!
4. Rinse the U-tube with ultrapure water and allow it to dry well.
5. Fill the U-tube with new copper wool and brass wool using tweezers
or a small hook.
Replace the complete contents of the U-tube. When filling the halide
trap, make sure that the copper wool and brass wool is not com-
pacted too much and no larger cavities are created.
6. Cover the copper wool and the brass wool with cotton wool.
7. Screw the gas inlet (hose no. 4) to the branch with copper wool and
the gas outlet (hose no. 5) to the branch with brass wool.
8. Press the filled U-tube carefully into the clamps.