Emerson NGA2000 PMD Manual Do Utilizador

760007-A 

July 2003 

Rosemount Analytical Inc.    A Division of Emerson Process Management                                                 Description and Specifications       1-3 

Model NGA2000 PMD 

Measurement Species................... Oxygen 

Ranges .......................................... 0 to 100% oxygen; four fullscale selections, including suppressed 

zero ranges in 1% increments 

Repeatability..................................

±1% of fullscale (at constant temperature) 

Minimum Detectable Level ............ 0.01% oxygen 

Noise ............................................. <1% of fullscale, peak-to-peak; <

±1% for suppressed ranges 

Linearity .........................................

±1% of fullscale 

Response Time ............................. 0 to 90% of fullscale in 20 seconds (

±2 seconds) 

Drift (Zero and Span)..................... <

±1% of fullscale/24 hours, <±2% of fullscale/week at constant 

temperature; 

<

±2% of fullscale/24 hours, <±4% of fullscale/week of range for 99 

to 100% (at constant temperature) 

Effect of Temperature.................... <

±1% of fullscale over any 10°C interval for rate of change no 

greater than 10

°C per hour 

Environment .................................. Location - Class B controlled, indoor, non-hazardous 

Ambient Temperature.................... 0 to 45

°C (32 to 113°F) 

Effect of Flow................................. <

±1% of range when sample flow rate is changed by 20 ml/min. 

Power Requirements..................... 24 VDC 

±5%, 50 W max.; ripple and noise: <100 mV peak-to-peak; 

line and load regulations: <

±1% 

 

Temperature .................................. Non-flammable;: 10 to 66

°C (50 to 150°F) 

Flow Rate ...................................... 800 to 1400 ml/min. 

Exhaust Pressure .......................... -345 to 690 hPa-gauge (-5 to 10 psig) 

Particles......................................... filtered to <2 microns 

Dewpoint........................................ below 43

°C (110°F), no entrained liquid 

Materials in Contact with Sample .. Glass, 316 stainless steel, titanium, Paliney No. 7, epoxy resin, Vi-

ton A, platinum, nickel, rhodium and MgF

2

 

Sample Humidity ........................... non-condensing at ambient temperatures 

 

Case Classification ........................ General purpose for installation in weather-protected areas 

Dimensions.................................... See Outline and Mounting Dimensions, Figure 2-6 on page 2-7

 

Weight ........................................... 8 kg (17.6 lbs. 

Mounting........................................ Inside a Platform or custom-installed in a panel 

Maximum Length of LON Cable .... 1600 m (1 mile) between Analyzer Module and Platform 

 

 

 

 

                                                      

1

 See the Platform manual for specifications regarding Platform related components.