Rosemount Oxymitter 4000, Инструкционный бюллетень

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IB-106-340
6-13
PROBE TUBE
(NOT INCLUDED
IN KIT)
SOCKET HEAD
CAP SCREWS
CORRUGATED
SEAL
CELL AND
FLANGE
ASSEMBLY
CALIBRATION GAS
PASSAGE
22220028
Figure 6-9. Cell Replacement Kit
6-8. CELL REPLACEMENT. This paragraph covers
oxygen sensing cell replacement. Do not attempt to
replace the cell until all other possibilities for poor
performance have been considered. If cell replace-
ment is needed, order the cell replacement kit (Table
8-1).
The cell replacement kit (Figure 6-9) contains a cell
and flange assembly, corrugated seal, setscrews,
socket head cap screws, and anti-seize compound.
The items are carefully packaged to preserve precise
surface finishes. Do not remove items from the
packaging until they are ready to be used. Spanner
wrenches and hex wrenches needed for this procedure
are part of an available special tools kit (Table
8-1).
Use heat-resistant gloves and clothing
when removing the probe. Do not attempt
to work on these components until they
have cooled to room temperature. Probe
components can be as hot as 800°F
(427°C). This can cause severe burns.
Disconnect and lock out power before
working on any electrical components.
There is voltage of up to 115 VAC.
Do not remove the cell unless certain it
needs to be replaced. Removal may
damage the cell and platinum pad. Go
through the complete troubleshooting
procedure to make sure the cell needs to
be replaced before removing it.
a. Follow the instructions in paragraph 6-4a1 to
remove the Oxymitter 4000 from the stack or duct.
If removing an Oxymitter 4000/SPS 4000
assembly, follow the instructions in paragraph
6-4b1.
b. If the probe uses the standard diffusion element,
use a spanner wrench to remove the diffusion ele-
ment.