Mc-techgroup SP2000H_DIL_BR Operator's manual Manual de usuario descargar pdf (Pagina 27)

Gas sampling and gas conditioning technology 2-1.1.7-ME

16.2 DISMANTLING THE DILUTION CROSS

Figure 11 shows an exploded drawing of the dilution unit.

Nut 1

Nut 2

Nut 3

Nut 4

Nut 5

Nut 6

Critical orifice

Mark

Injector

Mark

Tube sample gas

out

Block

180°C Version

O-rings

Figure 13 Exploded drawing of dilution unit

The following step-by-step procedure is recommended:

 Remove probe insulating cover (see 16.1).

 Loosen knurled screw for fixing heat conducting plates.

 Remove heat conducting plates.

 Remove all pipe connections on dilution unit (crosspiece). These are:

- vacuum pressure gauge nut 6

- dilution gas inlet nut 4

- sample gas outlet nut 5 (remove sample gas out pipe at upper elbow union. Do not remove

pipe connected to crosspiece)

- nut 1.

W A R N I N G !

Do not remove nut 2 until the dilution cross is removed from the

probe or the orifice will be broken !

The dilution cross is now ready for further maintenance and repair work.

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Mc-techgroup SP2000H_DIL_BR Operator's manual Manual de usuario Pagina 27