Sps 4000 Maintenance And Component Replacement - Emerson Oxymitter 5000 Instruction Manual

Oxymitter 5000
Do not get cement on ceramic diffu-
sion element except where it touches
the hub. Any cement on ceramic diffu-
sion element blocks airflow through
element. Wiping wet cement off of ce-
ramic only forces cement into pores.
Also, do not get any cement onto the
flame arrester element.
9. Thoroughly mix cement and insert tip
of squeeze bottle into cement port. Tilt
bottle and squeeze while simultane-
ously turning ceramic diffusion element
into seat. Do not get any cement on
upper part of ceramic diffusion ele-
ment. Ensure complete penetration of
cement around 3 grooves in hub. Ce-
ment should extrude from opposite
hole. Wipe excess material back into
holes and wipe top fillet of cement to
form a uniform fillet. (A cotton swab is
useful for this.) Clean any excess ce-
ment from hub with water.
10. Allow filter to dry at room temperature
overnight or 1 to 2 hours at 200°F
(93°C).
11. Wipe a heavy layer of anti-seize com-
pound onto the threads and mating
surfaces of the flame arrester, diffusion
hub, and probe tube.
12. Assemble flame arrester and diffusion
hub with two pin spanner wrenches.
Torque to 10 ft-lbs (14 N·m). Secure
with hub retaining setscrew.
13. On systems equipped with abrasive
shield, install dust seal gaskets with
joints 180° apart.
14. Reinstall vee deflector, orienting apex
toward gas flow. Apply anti-seize com-
pound to setscrews and tighten with
hex wrench.
15. Reinstall probe on stack flange.
Rosemount Analytical Inc. A Division of Emerson Process Management
4-10 SPS 4000 MAINTENANCE AND
COMPONENT REPLACEMENT
These paragraphs describe SPS 4000 mainte-
nance and component replacement procedures.
Replacement parts referenced are available
from Rosemount. Refer to Section 8, RE-
PLACEMENT PARTS, for part numbers and or-
dering information.
Install all protective equipment covers
and safety ground leads after equip-
ment repair or service. Failure to in-
stall covers and ground leads could
result in serious injury or death.
a. Fuse Replacement
The SPS 4000 has a fuse (17, Figure 4-11)
on the power supply board (18). Refer to
Table 8-3 for replacement fuse specifica-
tions. Perform the following procedure to
check or replace the fuse.
Disconnect and lock out power before
working on any electrical components.
1. Turn off power to the system.
2. Remove screw (7, Figure 4-11) secur-
ing manifold cover lock (6) and remove
the lock.
3. Remove manifold cover (14).
4. Remove fuseholder (16) by pushing in
the top and turning 1/4 turn counter-
clockwise. Remove fuse (17).
5. After checking or replacing fuse (17),
install fuseholder (16) by pushing in the
top and turning 1/4 turn clockwise.
6. Install manifold cover (14), and secure
with manifold cover lock (6) and screw
(7).
Instruction Manual
IB-106-350 Rev. 1.2
April 2001
Maintenance and Service 4-17
4