Emerson World Class 3000 Bedienerhandbuch PDF herunterladen (Seite 80)

Instruction Manual

Appendix AX Rev. 2.1

February 1998

A-12 Appendices Rosemount Analytical Inc. A Division of Emerson Process Management

World Class 3000

c. Loosen 4 socket head screws from retainer.

Pull off retainer and calibration tube in-

sert, Figure A-12. Discard calibration tube

insert.

d. Press the cell flange against the probe end

flange and twist through 90° in both the

clockwise and counterclockwise directions.

This breaks the bond between the cell and

the platinum pad. Once the bond is broken,

remove the cell.

e. View the platinum pad through the probe

end flange. Reform the platinum pad into a

shape to match the cell electrode by gath-

ering in any loose strands which may have

become untidy. This may be done with a

small flat screwdriver.

f. Remove and discard corrugated seal. Clean

mating faces of probe tube and retainer.

Remove burrs and raised surfaces with

block of wood and crocus cloth.

g. Rub one or two drops of anti-seize com-

pound #3535B53G01 between fingers.

Smear on both sides of corrugated seal.

h. Install new calibration tube insert in retainer,

with the short arm of the tube insert pene-

trating the calibration gas passage in the

outer ring of the retainer. Assemble retainer,

cell and flange assembly, corrugated seal,

PROBE

TUBE

PIN SPANNER

WRENCH

SNUBBER

DIFFUSOR

19780017

Figure A-11. Removal of Snubber Diffuser

and probe tube. Make sure the calibration

tube insert lines up with the calibration gas

passage in each component. Firmly seat

the calibration tube insert in the assembly.

Apply a small amount of anti-seize com-

pound to screw threads and use screws to

secure assembly. Torque to 4 N·m

(55 in-lbs).

i. To install snubber diffuser, apply anti-seize

compound to threads of probe tube, Figure

A-11, and snubber diffuser. Reinstall dif-

fuser on probe tube. Using pin spanner

wrenches, torque to 14 N·m (10 ft-lbs).

j. If using the optional vee deflector and ce-

ramic hub, apply anti-seize compound to

threads of probe end flange, hub, and

setscrews. Reinstall hub on probe tube.

Using pin spanner wrenches, torque to

14 N·m (10 ft-lbs). Reinstall vee deflector,

orienting apex toward gas flow. Secure with

setscrews and anti-seize compound.

Torque to 2.8 N·m (25-in-lbs). Secure hub

retaining setscrew.

k. On systems equipped with an abrasive

shield, install dust seal gaskets, with joints

180° apart.

730010

PROBE

END

FLANGE

PROBE TUBE

(NOT INCLUDED KIT)

CORRUGATED

SEAL

CELL END

FLANGE ASSEMBLY

RETAINER

SOCKET

HEAD CAP

SCREW

CALIBRATION

TUBE INSERT

CALIBRATION

TUBE PASSAGE

Figure A-12. Cell Replacement Kit

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 157 158

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