Specifications

I
NSTALLATION
748410-A
August 1999
6
Chemiluminescense Detector Analyzer Module
Rosemount Analytical NGA 2000
2
F
IGURE
2-1. A
NALYZER
M
ODULE
I
NSTALLATION INTO
I
NSTRUMENT
P
LATFORM
Unrestricted air flow to the rear of the Analyzer Module is critical to its
performance and reliability.
Operating ambient temperature is 0
o
C to 45
o
C (32
o
F to 113
o
F). Temperature change should
not exceed 10
o
C (18
o
F) per hour. The same temperature range restrictions apply to the
location of the air and span gas cylinders.
2.4 G
ASES
2.4.1 O
VERVIEW
See Table 2-1. The CLD Analyzer Module requires two cylinder gases: 1) breathing grade
air or oxygen and 2) a standard of accurately known composition for use as a span gas.
Each gas should be supplied from a cylinder equipped with a clean, non-corrosive,
two-stage regulator. A shutoff valve is recommended.
2.4.2 C
ONNECTIONS
(See Figure 2-2.) Connect inlet and outlet lines for sample, air, and exhaust to appropriately
labeled fittings on the rear panel, each of which is a 1/4-inch ferrule-type compression fitting.
Stainless steel or Teflon tubing is recommended for the sample line. Exhaust tubing should
be 1/4 inch (6.3 mm) or larger, and made of stainless steel or Teflon.
ANALYZER MODULE GUIDES
PIN SEATS
DISENGAGED FRONT PANEL
NOTE