Emerson World Class 3000 Manual de instrucciones descargar pdf (Pagina 25)

Instruction Manual

106-300NFX Rev. 4.2

January 2002

Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-7

World Class 3000

4. If using the optional ceramic diffuser

element, the vee deflector must be cor-

rectly oriented. Before inserting the

probe, check the direction of flow of the

gas in the duct. Orient the vee deflector

on the probe so that the apex points

upstream toward the flow (Figure 2-2).

This may be done by loosening the

setscrews, and rotating the vee de-

flector to the desired position.

Retighten the setscrews.

5. In horizontal installations, the probe

cover should be oriented so that the

system cable drops vertically from the

probe cover. In a vertical installation,

the system cable can be oriented in

any direction.

6. If the system has an abrasive shield,

check the diffusion element dust seal

packings. The joints in the two pack-

ings must be staggered 180°. Also,

make sure that the packings are in the

hub grooves as the probe slides into

the 15° forcing cone in the abrasive

shield.

NOTE

If process temperatures will exceed

1000°F (538°C), use anti-seize com-

pound on stud threads to ease future

removal of probe.

APEX

FILTER

GAS FLOW

DIRECTION

VEE

DEFLECTOR

CERAMIC

DIFFUSION

ELEMENT

VEE

DEFLECTOR

SETSCREW

23800008

Figure 2-2. Orienting the Optional Vee Deflector

7. Insert the probe through the opening in

the mounting flange and bolt the unit to

the flange.

8. Ensure that probe is properly earthed

by way of both the internal and external

points.

9. Ensure that the installation does not

obscure the messages on either the

probe nameplate or the junction box

lid.

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Emerson World Class 3000 Manual de instrucciones Pagina 25

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