Emerson NGA 2000 TO2 - Manual (Page 16)

Instruction Manual
760008-A
September 2001
1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA 2000 TO2
1-5 SPECIFICATIONS 1
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)
1 See the Platform manual for specifications regarding Platform related components.