Replacing The Sample Line In Enhanced Probe - Thermo Scientific TVA2020 Instruction Manual

Replacing the
Sample Line in
Enhanced Probe
Thermo Fisher Scientific
Use the following procedure to replace the sample line
1. Loosen the probe nut and remove the sampling assembly by pulling it
free from the probe assembly.
2. Insert a thin rod through the hole in the side of the probe fitting
adapter. You will use this rod to pull the adapter and tubing from the
probe assembly.
3. Remove the tubing from the quick-connect fitting by carefully cutting
the tubing.
4. At the base of the probe handle, gently push the tubing into the probe.
At the same time, use the rod to pull the probe fitting adapter and
tubing forward from the probe assembly. When the adapter fitting is
fully exposed, cut the tubing from the fitting and pull the remainder of
the tubing back through the probe assembly until it is completely out
of the probe.
5. Cut a new piece of tubing about three inches longer than the old
tubing.
6. Insert new tubing through the bottom protective covering (where you
connect to the analyzer), and slowly feed the tubing through toward
readout handle.
7. Once the tubing exits the top protective covering, insert the new tubing
into the probe handle and carefully push it through to the other end.
When the tubing is in position, cut the end square and push it over the
barbed adapter fitting.
8. Grasp the tubing below the probe assembly handle and pull it back
through the probe assembly until the adapter fitting is properly seated
in the probe assembly.
9. Cut the other end of the tubing to the proper length and insert it into
the end of the quick-connect fitting. (Allow 5/8-inch of tubing inside
the fitting.)

Replacing the Sample Line in Enhanced Probe

(Figure 7–20).
TVA2020 Instruction Manual
Servicing
7-23