Instruction Manual
760000-C
November 2002
1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 CLD
1-5 SPECIFICATIONS
a. General
Measurement Species:
..................
NO, NOx
Ranges:
.........................................
0 to 10 ppm through 0 to 10,000 ppm NO, NOx
Repeatability:
.................................
±
0.5% of fullscale (at constant temperature)
Min. Detectable Level:
...................
0.1 ppm
Noise:
............................................
<1% of fullscale, peak to peak
Linearity:
........................................
±
1% of fullscale
Response Time:
............................
<1 sec. for 90% of fullscale for ranges of 25 ppm or greater
.......................................................
<3 sec. for 90% of fullscale for ranges of less than 25 ppm
t90 Response ................................ 1-2 sec.
Zero Drift: (at constant temperature)
<
±
1% of fullscale/24 hours, <
±
2% of fullscale/week
Span Drift: (at constant temperature)
<
±
1% of fullscale/24 hours, <
±
3% of fullscale/week
Effect of Temperature:
...................
<2% of fullscale (over any 10
°
C ambient temperature variation
interval for a rate of change no greater than 10
°
C/hour)
Ambient Temperature:
...................
0
°
C to 45
°
C (32
°
F to 113
°
F)
Power Requirements:
....................
24V DC 120W
b. Physical
Case Classification:
.......................
General purpose for installation in weather-protected area
Dimensions:................................... See Figure 2-5. Outline and Mounting Dimensions p2-6
Weight:
..........................................
8.1 kg (18 lbs.)
Mounting:
.......................................
Inside a Platform or custom-installed in a panel
Max. Length of LON Cable:
...........
1600m (1 mile) between Analyzer Module and Platform
c. Sample
Temperature:
................................
0
°
C to 45
°
C (32
°
F to 131
°
F)
Total Flow Rate:
..........................
(Externally measured) 900 to 2200 cc/min. with backpressure
regulator pressure adjusted to 344 hPa (5 psig)
Particles:
......................................
Filtered to <2 microns
Dewpoint:
.....................................
5.5
°
C below ambient temperature, no entrained liquid
Materials in contact with Sample:
..
Stainless steel, Teflon, glass, brass and neoprene
Optional: ..................... Stainless steel, Teflon, glass and Kynar
Ozonator Gas:
...............................
Clean, dry air or oxygen; flow rate: 1 L/min. maximum; pressure:
689 hPa to 1034 hPa-gauge (10 to 15 psig); maintain a constant
pressure
±
34 hPa (
±
0.5 psig)
d. Gas
Connections
Ozone Air:
......................................
1/4” O.D. tube fitting, brass
Exhaust:
.........................................
1/4” O.D. tube fitting, stainless steel
Sample In:
.....................................
1/4” O.D. tube fitting, stainless steel
See the Preface section of the Platform manual for specifications regarding Platform-related components
(e.g., case dimensions) and the I/O Module manual for specifications regarding I/O (e.g., relay outputs).