Emerson OXYMITTER 4000 - Manual (Page 134)

Instruction Manual
IB-106-340 Rev. 3.0
December 2003
9-6 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management
Oxymitter 4000
9-4 OXYMITTER 4000 REPAIR
Refer to Figure 9-3 or Figure 9-4 to view the
component parts of the Oxymitter 4000.
It is recommended that the Oxymitter
4000 be removed from the stack for all
service activities. The unit should be
allowed to cool and be taken to a clean
work area. Failure to comply may
cause severe burns.
Disconnect and lock out power before
working on any electrical components.
There is voltage up to 115 VAC.
a. Removal and Replacement of Oxymitter
4000 Probe (without Integrally Mounted
SPS 4000)
1. Remove.
(a) Turn off power to the system.
(b) Shut off the calibration gases at
the cylinders and the instrument
air.
(c) Disconnect the calibration gas and
instrument air lines from the probe.
(d) While facing the Oxymitter 4000
and looking at the Rosemount la-
bel, remove screw (32, Figure 9-3
or Figure 9-4), gasket (33) and
cover lock (34) securing left hous-
ing cover (27). Remove the cover
to expose the terminal block.
(e) Remove all signal and power wir-
ing to the probe.
(f) Remove insulation to access the
mounting bolts. Unbolt the Oxy-
mitter 4000 from the stack and
take it to a clean work area.
(g) Allow the unit to cool to a comfort-
able working temperature.
2. Replace.
(a) Bolt the Oxymitter 4000 probe to
the stack and install insulation.
(b) Connect all signal and power leads
at the probe. Refer to Section 2 for
detailed wiring instructions.
(c) Install left housing cover (27,
Figure 9-3 or Figure 9-4) and en-
sure it is tight. Secure the cover
using cover lock (34), gasket (33),
and screw (32).
(d) Connect the calibration gas and in-
strument air lines to the probe.
(e) Turn on the calibration gases at
the cylinders and turn on instru-
ment air.
(f) Restore power to the system.
b. Removal and Replacement of Oxymitter
4000 Probe with Integral Electronics and
Integrally Mounted SPS 4000
1. Remove.
(a) Turn off power to the system.
(b) Shut off the calibration gases at
the cylinders and the instrument
air.
(c) Disconnect the instrument air and
calibration gas lines from the SPS
4000. If the instrument air does not
flow through the SPS 4000, dis-
connect the instrument air directly
at the Oxymitter 4000 probe.
(d) Remove the screws securing the
terminal cover to the SPS 4000
manifold. Remove the terminal
cover to expose the terminal strip.
(e) Tag all customer-wired leads that
are connected to the terminal strip
before removing.