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Instruction Manual
IB-106-340 Rev. 3.0
December 2003
9-18 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management
Oxymitter 4000
THERMOCOUPLE -
(YELLOW)
HEATER (BLACK)
HEATER (BLACK)
THERMOCOUPLE +
(RED)
OXYGEN CELL +
(ORANGE)
OXYGEN CELL -
(GREEN)
36940005
Figure 9-12. Termination Housing Connections for
Remote Electronics Probe Head
k. Termination Housing Wiring (Remote
Electronics Probe Head Only)
Under normal circumstances, the right ter-
mination housing cover should not need to
be removed. This side of the housing con-
tains only two wire harnesses that connect
the internal electrical barrier to pins in the
housing wall. If these jumper wires should
become disconnected or need to be re-
placed, use the diagram in Figure 9-12 to
connect the wires.
9-5 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 11, 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 9-13)
on the power supply board (18). Refer to
Table 11-3 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 9-13) 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).