Emerson NGA 2000 TO2 instruction manual SPECIFICATIONS1, General, Sample, Physical

Instruction Manual

760008-A September 2001

Model NGA 2000 TO2

1-5 SPECIFICATIONS1
a. General
Measurement Species	Trace Oxygen
Ranges	0 to 100 ppm (output scalable down to 0-2 ppm fullscale)
Accuracy	±3% of reading or ±0.02% of range (except for ranges ≤
	100 ppm: ±3% of reading or ±0.05% of range)
Sensitivity	<10 ppb Oxygen
Noise	1% of fullscale, peak to peak
Linearity	±1% of fullscale
Response Time	Typically 90% in less than 20 seconds
Zero Drift	≤±1% of fullscale/24 hours at constant temperature
Span Drift	≤±1% of fullscale/24 hours at constant temperature
Effect of Temperature	0.32% of reading per °F from 70°F (0.58% of reading per
	°C from 21°C)
Effect of Flow	≤2% of reading for a flow change of ±250 cc/min (0.5
	SCFH)
Operating Temperature	32°F to 113°F (0°C to 45°C)
Power Requirements	+24 VDC ±5%, 10 W max.
Ripple and Noise	<100 mV peak to peak
Line and Load Regulations	<±1%

b. Sample
Sample	Non-flammable (below 100% of the LEL)
Flow Rate	0.5 to 1.5 L/min.
Supply Pressure	1027 to 1082 hPa - absolute (0.2 to 1.0 psig)
Temperature	32°F to 113°F (0°C to 45°C)
Particulates	filtered to <0.1 mg/L; non-condensing at ambient tem-
	perature
Sample Humidity	non-condensing at ambient temperatures

c. Physical
Materials in contact with sample	Stainless steel, Teflon, Delrin, neoprene
Dimensions	See Figure 2-2, Outline and Mounting Dimensions
Weight	6.8 kg (15 lbs.)
Mounting	Horizontal, external to Platform or custom installed in a
	panel
Case Classification	General Purpose for installation in weather protected
	area
Max. Separation from Platform	1600 m (1 mile)

1See the Platform manual for specifications regarding Platform related components.

1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management