Emerson ROSEMOUNT Analytical NGA 2000 Instruction Manual page 190

NGA 2000 MLT Hardware
OPENING OF HOUSING
CAT 200
It's now possible to pivot the module downwards and to unscrew three additional knurled
head screws to remove the module cover.
Furthermore it is possible to take the module out of the CAT housing after disconnecting all gas
path and electrical connections. This gives access to the components installed inside the cast iron
housing (fig. 5-14).
The analyzer module used within the CAT 200 is identical to a MLT 1 analyzer, except it is
magnetically operated. For this reason see fig. 1-9 to 1-11 when identifying the different
components installed within a CAT 200 analyzer module: These figures show several MLT 1
configurations, also valid for the CAT 200 module.
15 - 14
right bracket
analyzer module
plate with
detents
Fig. 15-12: View at analyzer module
3 detents
Fig. 15-13: Plate with detents
first middle
knurled head
screw
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006