Instruction Manual

IB-106-340 Rev. 2.4 April, 2001

Oxymitter 4000

b. Oxymitter 4000 (with Integrally Mounted

(i) Allow the unit to cool to a comfort-

SPS 4000)

 

able working temperature.

1. Remove.

2. Replace.

(a)

Turn off power to the system.

(a)

Bolt the Oxymitter 4000/SPS 4000

 

 

 

assembly to the stack and install

(b)

Shut off the calibration gases at

 

insulation.

 

the cylinders and the instrument

(b)

Follow the instructions in para-

 

air.

 

 

 

graph 2-3to connect the line volt-

(c)

Disconnect the instrument air and

 

age and signal leads to an Oxy-

 

mitter 4000/ SPS 4000 assembly.

 

calibration gas lines from the SPS

 

 

4000. If the instrument air does not

(c) Follow the instructions in para-

 

flow through the SPS 4000, dis-

 

connect the instrument air directly

 

graph 2-5to connect the calibra-

 

at the Oxymitter 4000.

 

tion gases and instrument air to an

 

 

 

Oxymitter 4000/SPS 4000 assem-

(d)

Remove the screws securing the

 

bly. Turn on the calibration gases

 

at the cylinders and turn on instru-

 

terminal cover to the SPS 4000

 

 

 

ment air.

 

manifold. Remove the terminal

 

 

cover to expose the terminal strip.

(d)

Restore power to the system.

 

 

(e)

Tag all customer-wired leads that

6-5 ELECTRONICS REPLACEMENT

 

are connected to the terminal strip

 

before removing.

Each of the following procedures details how to

 

 

(f)

On the terminal strip, loosen the

remove and replace a specific electronic com-

ponent of the Oxymitter 4000.

 

screws securing the customer-

 

 

 

 

wired LINE IN and NEUTRAL

 

NOTE

 

leads to terminals L and N (Figure

 

 

 

 

 

2-10).Also, remove the customer-

Recalibration is required whenever

 

wired ground lead from the ground

electronic cards or sensing cell is re-

 

lug. Remove the leads from the

placed.

 

 

terminal strip and slide them from

a. Entire Electronics Replacement

 

the manifold through the line volt-

 

age conduit port.

(with Housing)

(g)

Next, loosen the screws of remote

 

NOTE

 

contact input terminals 1 and 2; 4-

Only perform this procedure on Oxy-

 

20 mA terminals 3 and 4; and relay

mitter 4000 units without integrally

 

output terminals 7, 8, 9, and 10.

mounted SPS 4000 units. If it is neces-

 

Remove the leads from the termi-

sary to replace the entire electronics

 

nal strip and slide them from the

on an Oxymitter 4000/ SPS 4000 as-

 

manifold through the signal conduit

sembly, contact Rosemount for further

 

port.

instructions.

(h)

Remove insulation to access the

1. Follow the instructions in paragraph

 

mounting bolts. Unbolt the Oxy-

6-4a.1to remove the Oxymitter 4000

 

mitter 4000/SPS 4000 assembly

from the stack or duct. If removing an

 

from the stack and take the entire

Oxymitter 4000/SPS 4000 assembly,

 

assembly to a clean work area.

follow the instructions in paragraph

 

 

6-4b.1.

6-8 Maintenance and Service

Rosemount Analytical Inc. A Division of Emerson Process Management

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Emerson Process Management IB106-340 instruction manual Electronics Replacement