Instruction Manual

IB-106-340 Rev. 3.0 December 2003

Oxymitter 4000

9-4 OXYMITTER 4000 REPAIR

2. Replace.

Refer to Figure 9-3or Figure 9-4to 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 9-3or 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.

(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 9-3or 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.

9-6 Maintenance and Service

Rosemount Analytical Inc. A Division of Emerson Process Management