Emerson Process Management IB106-340 When replacing the strut, align the slot on

Oxymitter 4000

Instruction Manual

IB-106-340 Rev. 2.4 April, 2001

f. When replacing the strut, align the slot on 6-8

the heater plate with the calibration gas line in the probe tube. Slide the strut into the probe tube. It will turn to align the hole on the back plate of the strut with the calibra- tion gas line. When the hole and the cali- bration gas line are aligned correctly, the strut will slide in the rest of the way.

g.Push down on the back plate of the strut to make sure you have spring tension and then tighten the three screws on the back plate.

h.Replace the CAL and REF gas silicon tubes.

i.Install the entire electronics per paragraph 6-5a,steps 7 through 13.

j.Follow the instructions in paragraph 6-4a.2to install the Oxymitter 4000 into the stack or duct. If installing an Oxymitter 4000/SPS 4000 assembly, follow the instructions in paragraph 6-4b.2.

PROBE TUBE

(NOT INCLUDED

IN KIT)

CORRUGATED

SEAL

CELL AND

FLANGE

ASSEMBLY

SOCKET HEAD

CAP SCREWS

CALIBRATION GAS

PASSAGE

22220028

Figure 6-9. Cell Replacement Kit

CELL REPLACEMENT
This paragraph covers oxygen sensing cell re-
placement. Do not attempt to replace the cell
until all other possibilities for poor performance
have been considered. If cell replacement is
needed, order the cell replacement kit (Table
9-1).
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 pack-
aged 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 9-1).
Use heat-resistant gloves and clothing
when removing the probe. Do not at-
tempt to work on these components
until they have cooled to room tem-
perature. Probe components can be as
hot as 800°F (427°C). This can cause
severe burns.
Disconnect and lock out power before	6
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 6-4a.1to remove the Oxymitter 4000 from the stack or duct. If removing an Oxymitter 4000/SPS 4000 assembly, follow the in- structions in paragraph 6-4b.1.

b.If the probe uses the standard diffusion element, use a spanner wrench to remove the diffusion element.

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 6-13