Emerson NGA2000 TO2 instruction manual Specifications, General, Sample, Physical, Gas Connections

Instruction Manual

748374-F March 2003

1-5 SPECIFICATIONS

a.General

Model NGA2000 TO2

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 temperature
	Sample Humidity	non-condensing at ambient temperatures
c.	Physical
	Materials in contact with sample ...	Stainless steel, Teflon, Delrin, neoprene
	Dimensions	See Figure 2-2.Trace Oxygen Analyzer Outline and Mounting
		Dimensions on page 2-3
	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)
d.	Gas Connections
	Sample In	1/4 inch O.D. tube fitting
	Sample Out	1/4 inch O.D. tube fitting

See the Preface Section of the Platform manual for specifications regarding Platform related components.

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