Emerson Process Management IB106-340 instruction manual Oxymitter 4000 REMOVAL/REPLACEMENT

Oxymitter 4000

Instruction Manual

IB-106-340 Rev. 2.4 April, 2001

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.

6-4 OXYMITTER 4000 REMOVAL/REPLACEMENT

a.Oxymitter 4000 (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 Oxy- mitter 4000.

(d)While facing the Oxymitter 4000 and looking at the Rosemount la- bel, remove screw (32, Figure 6-1),gasket (33) and cover lock (34) se- curing left housing cover (27). Re- move the cover to expose the terminal block (Figure 6-4).

(e)Loosen the screw on the AC termi- nal cover and slide the cover back to access the neutral and line ter- minals. Loosen the AC line and neutral terminal screws and re- move the leads. Loosen the ground lug screws and remove the leads. Slide the line power leads out of the AC line voltage port.

(f)Loosen the logic I/O and the 4- 20 mA signal terminal screws. Remove the leads from the termi- nals and slide the wires out of the signal port.

(g)Remove insulation to access the mounting bolts. Unbolt the Oxy- mitter 4000 from the stack and take it to a clean work area.

(h)Allow the unit to cool to a comfort- able working temperature.

2.Replace.

(a)Bolt the Oxymitter 4000 to the stack and install insulation.

(b)Insert the logic I/O and 4-20 mA leads in the signal port and con- nect to the logic I/O and 4-20 mA screw terminals (Figure 6-4).

(c)Insert the power leads in the AC line voltage port and connect to the AC line screw terminals. Connect the line, or L1, wire to the L1 ter-

minal, and the neutral, or L2, wire 6

to the N terminal. Slide the AC terminal cover over the terminal connection and tighten the cover screw.

(d)Install left housing cover (27, Figure 6-1)and ensure it is tight. Secure the cover using cover lock (34), gasket (33), and screw (32).

(e)Connect the calibration gas and in- strument air lines to the Oxymitter 4000.

(f)Turn on the calibration gases at the cylinders and turn on instru- ment air.

(g)Restore power to the system.

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 6-7