Buchi DuMaster D-480, Operation Manual

Page: 212 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 212
Removing the O
2
lance
Proceed as follows:

Place the combustion tube connection upside-down on the tube rack.

Carefully pull the O
2
lance with circular rotations out of the combustion tube connection.
Cleaning the O
2
lance
Proceed as follows:

Wipe any soot with a dry cloth.

Replace the seal made of sealing hose.

Check the lance for patency.
Installing the O
2
lance
Proceed as follows:

Pull on the lance connector (2) at the end of the O
2
lance (3). Insert the O
2
lance with the
connector into the 3 mm bore (1) located across from the flap with hinge up to the stop. Avoid
breakage of the lance by slight rotary motions while inserting.

After insertion the sealing hose must be set in completely into the bore and must not stick out.