ABB AZ200 737 - Refitting the Cell and Large Surface Area Filter; Preparing the Cell Mounting Area; Fitting New C-ring and Cell; Refitting Test Gas Injection Pipe

6 IN/ANAINST/032–EN Rev. B | Endura AZ20 series probe | Combustion oxygen monitor
6 Refitting the cell and large surface
area filter
Referring to Fig. 6.1, page 7:
1. Check the cell mounting area for damage and ensure it is
clean and dry. Clean by hand only using a non-metallic pan
scouring pad – do not use any other abrasives.
2. Fit (new) C-ring
A into recess B.
3. Locate cell
C and use a small screwdriver to align it with
test gas injection pipe hole
D in probe body end plate
E.
4. Carefully slide cell
C into the probe body end plate E.
5. Refit test gas injection pipe
F ensuring the short end fits
into the test gas injection pipe hole
D.
6. Locate probe filter carrier
G by aligning the internal notch
H with test gas injection pipe F.
7. Locate 6 M4 x 50 bolts
I and fit nuts J using an M4
spanner and 3 mm A/F hexagon wrench – tighten opposing
bolts evenly to a torque of 4 cNm (5.66 ozf/in).
8. Locate ceramic filter adaptor K.
9. Locate the 3 off M4 x 50 bolts
L and fit nuts M using an
M4 spanner and 3 mm A/F hexagon wrench – tighten bolts
evenly to a torque of 4 cNm (5.66 ozf/in).
10. Locate filter gaskets N, ceramic filter O and clamp plate
P.
11. Pass 2 M4 x 60 screws Q through clamp plate P and
fit 2 nuts R into the recess in ceramic filter adaptor
K.
Tighten bolts evenly to a torque of 4 cNm (5.66 ozf/in) using
a 3 mm A/F hexagon wrench.
12. Re-install the probe as detailed in probe Instruction manual
IM/AZ20P-EN.
13. Make gas supplies to the probe and electrical supplies to
the transmitter – refer to transmitter Instruction manual
IM/AZ20E-EN and probe Instruction manual IM/AZ20P-EN.
14. Use the new cell’s Zero and Cal. Factor data on the
Commissioning Label to commission and calibrate the
probe – refer to transmitter Instruction manual
IM/AZ20E-EN for calibration details.
IMPORTANT (NOTE)
Do not rotate the cell once it has engaged with the
helical contact at the end of the thermocouple /
electrode assembly (contained within the probe
body).
IMPORTANT NOTE
A small amount of anti-seize grease or oil can be
used on these nuts only to assist assembly. Do not
use anti-seize grease or oil on any other probe
fixings.
IMPORTANT NOTE
A small amount of anti-seize grease or oil can be
used on these nuts only to assist assembly. Do not
use anti-seize grease or oil on any other probe
fixings.
IMPORTANT NOTE
Fit the same number of gaskets each side of ceramic
filter O.