Model NGA2000 NDIR

Instruction Manual

748332-F April 2003

1-7 SPECIFICATIONS

a.General

 

Measurement Species:..................

Heteroatomic gases such as ammonia (NH3), carbon dioxide

 

 

(CO2), carbon monoxide (CO), carbon monoxide + carbon dioxide

 

 

ethylene (C2H4), hexane (C6H14), methane (CH4), nitric oxide (NO)

 

 

and sulfur dioxide (SO2)

 

Ranges: .........................................

10 ppm fullscale to 100% fullscale (application-dependent); 4

 

 

fullscale selections, including suppressed zero ranges

 

Repeatability:.................................

±1% of fullscale (at constant temperature)

 

Minimum Detectable Level: ...........

0.1% CO2 (at 1 atm. sample pressure; application dependent)

 

Noise: ............................................

<1% of fullscale, peak-to-peak

 

Linearity: ........................................

±1% of fullscale with 4th order polynomial

 

Response Time: ............................

.05 to 30 seconds (selectable) for 0 to 90% of fullscale

 

Drift (Zero and Span):....................

<±1% of fullscale/24 hours at constant temperature (application

 

 

dependent);

 

 

<±2% of fullscale/week at constant temperature (application

 

 

dependent)

 

Effect of Temperature:...................

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

 

 

greater than 10°C per hour (application dependent)

 

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 ≤250 ml/min.

 

 

(No effect if flow rate is between 0 and 500 ml/min.)

 

Power Requirements:....................

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

 

 

peak; line and load regulations: <±1%

b.

Physical

 

 

Case Classification:.......................

General purpose for installation in weather-protected areas

 

Dimensions:...................................

See Outline and Mounting Dimensions, Figure 2-5 on page 2-6

 

Weight: ..........................................

Standard: 11 kg (24.2 lbs.); extended: 12.5 kg (27.5 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

c.

Sample

 

 

Temperature:.................................

Non-flammable 0°C to 55°C (32°F to 138°F)

 

Flow Rate: .....................................

500 to 1400 ml/min.

 

Pressure: .......................................

Maximum 690 hPa-gauge (10 psig), higher pressure in pressurized

 

 

cell applications

 

Particulates:...................................

filtered to <2 microns

 

Dewpoint:.......................................

<40°C (104°F), no entrained liquid

 

Materials in Contact with Sample:. Gold plated Pyrex, sapphire, quartz, Irtran, FEP Teflon, Viton-A,

 

 

316 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).

Rosemount Analytical Inc. A Division of Emerson Process Management

Description and Specifications 1-5