Endress+Hauser analytikjena multi N/C UVHS Operating Manual page 87

multi N/C UVHS, multi N/C pharma UV
} Open the doors of the analyzer.
} Remove the FAST connectors from the halogen trap and remove the U-tube from the
clamps.
} Pull out the depleted copper wool or brass wool from the U-tube with tweezers or a
small hook.
} Check the U-tube for cracks. Only reuse a fully intact U-tube.
} If necessary, rinse the U-tube with ultrapure water and allow it to dry well.
} 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. Do not pack the copper and brass
wool too tightly, but do not allow any larger empty spaces.
} Cover the copper wool and the brass wool with cotton wool.
} Carefully press the filled U-tube into the clamps again.
} When doing this, route hoses 1 and 15 behind the halogen trap.
} Reconnect the gas hoses with FAST connectors to the halogen trap:
– Hose 11 to the branch with copper wool (connection to the water trap)
– Hose 12 to the branch with brass wool (connection to the detector)
} Check the system for leaks.
} Close the doors of the analyzer again.
Maintenance and care
87