20
INM MTL 130-0202 Rev 4
6.5 Removal of katharometer and reaction tube
Refer to fig 7 below
Figure 7
1. Ensure that the instrument is not powered up and that the reactor is cold.
2. Ensure that sample train is purged with air and that removing the sample connections
will not cause the escape of any corrosive or poisonous gases.
3. Remove the heat shield by removing the four fixing screws
4. Slacken the two blue plastic (PFA) nuts that couple the reactor tube to the
katharometer and carefully withdraw the reactor tube (FRAGILE!) to the right and put
it to one side in a secure place.
5. Unscrew completely the blue plastic (PFA) coupling nuts of the sample inlet and outlet
and pull the connecting pipes to one side. ENSURE THAT THE FRONT FERRULES
(see fig. 3) ARE EITHER REMOVED AND PUT IN A SAFE PLACE, OR RETAINED ON
THE PIPES IN SOME POSITIVE WAY.
6. Detach the katharometer connecting cable from the terminal block and release it from
any trunking etc.
7. Remove the two nuts and washers on the stud mounts of the katharometer body and
put them to one side in a secure place.
8. Withdraw the katharometer body from the mounting studs by gently pulling it squarely
from the front.
9. Take the katharometer and reaction tube to the workshop or laboratory.
Katharometer
Assembly
Reactor
Furnace
Quartz reaction tube
Outline of heat shield
4 x ¼” double ferrule
couplings with
5/8" (16mm) AF nuts
Sample out
Sample in
M4 stud mounts
