Cat 200 - Emerson ROSEMOUNT Analytical NGA 2000 Instruction Manual

NGA 2000 MLT Hardware
TECHNICAL DESCRIPTION

CAT 200

1.8 CAT 200
The CAT 200 is an analyzer with flameproof enclosure, designed especially for operation in
hazardous areas. It is approved to meet the requirements of the European Directive for equipment
intended to be used in hazardous areas (commonly know as "ATEX 95") and of the North American
Standards (certified by the Canadian Standards Association, CSA International).
The enclosure meets IP 65 (optional: IP 66, tropicalisation), has robust design and is prepared for
wall mounting. Therefore the analyzer may be used for general purpose applications requiring
outdoor installation, too.
This current instruction manual covers using the CAT 200 analyzer for general
purpose applications only!
Installation, startup and maintenance for operation in hazardous areas are de-
scribed in detail in a separate instruction manual, shipped together with each
such analyzer and are not subject of the current instruction manual!
Installed inside the flameproof enclosure an analyzer module holds all measuring components.
As the module corresponds to a 1/2-19" MLT 1 analyzer/analyzer module, a CAT 200 analyzer
offers almost the same options.
This analyzer model is supplied by an internal wide range power supply, automatically adapting
to the voltage at site (Rated input voltage: 115-230 V
V , 47 - 63 Hz).
Because of the intention to used in hazardous areas the front panel is located behind a safety glas
window. The analyzer is touchless operated by using a magnetically tool, whereat the standard
pushbuttons are replaced by sensor fields (see fig. 1-2).
All interface signals (partial options) are accessible on screw terminal blocks, located in a separate
junction box. That applies to mains power supply, too.
Take care of the special installation instructions in chapter 5 "Installation"!
Located below the junction box is a second volume consisting of dome housing, extender housing
and base, containing analyzer module, power supply unit, fuses and gas pipes (see fig. 1-28). All
three parts of the enclosure are threated together. Unthreading the parts gives access to the
internal components.
1 - 28
50/60 Hz, Input voltage range: 85 - 264
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006