NOx Analyzer

NOx Analyzer

Highlights:
Measures from 0-3 to 0-3,000 ppm Full Scale (NO/NO2/NOx)Automatic calibration and rangingFast response time

Electronic sample and ozone flow control

Output options: voltage, current, RS-232 using AK Protocol and TCP/IP, Modbus

1065-compliant configurations

CE Mark and ETL listed – conform to UL STD 61010-1, certified to CAN/CSA C22.2 STD 61010.1

Product Brief

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Description

Model 600 CLD Chemiluminescent NOX analyzer designed for final product CO2 applications with low flow and low with pressure option (0.6 LPM sample flow).  The Model 600 CLD is on a  19″ rack mount slide with Zero and Span manifold. Unit requires dry air (DP -10C or lower) with LT 0.01 ppm NOX content @ 350 cc/min.

Model 600 CLD Analyzers utilize the principle of chemiluminescence for analyzing the NO or NOx concentration within a gaseous sample. In the NO mode, the method is based upon the chemiluminescent reaction between ozone and nitric oxide (NO) yielding nitrogen dioxide (NO2) and oxygen. This reaction produces light which has intensity proportional to the mass flow rate of NO2 into the reaction chamber. The light is measured by means of a photodiode and associated amplification electronics. In the NOx mode, NO plus NO2 are determined as with the NO mode; however, the sample is first routed through the internal NO2-to-NO converter that converts the NO2 in the sample to NO. The resultant reaction is then directly proportional to the total NOx concentration. Sample enters the analyzer directly into a heated chamber and is maintained at an elevated temperature. The moisture will remain in the vapor state, thus ensuring no loss of the NO2.

Requires NO2 gas standard (at 5 – 10  ppm v/v suggested span) in CO2 balance for calibration

Detector Chemiluminescence (CLD) photodiode (thermally stabilized with Peltier cooler)
NO/NOx Ranges Four user-defi nable from 0-3 to 0-3,000 ppm
Response Time Typically < 2 seconds to 90% Full Scale
Repeatability Better than 0.5% of Full Scale
Linearity Better than 0.5% of Full Scale
Noise Typically less than 1% of Full Scale
Zero and Span Drift Less than 1% of Full Scale per 24 hours
Zero and Span Adjustment Via front panel, TCP/IP or RS-232
Oxygen Methodology Paramagnetic, 0-25%/0-100%
NH3, HCN and SO2 Effect Not detectable with 100 ppm
H2O Effect Less than 1.0% with 1% H2O
Flow Control Electronic proportional pressure controller
Sample Flow Rate Typically 2.0 LPM (0.6 LPM with low-fl ow option)
Converter Vitreous carbon material @ 205°C > 95% efficiency
Ozonator Ultraviolet lamp
Air or O2 Requirement Less than 0.01 ppm NOx at 240 cc/min. @ 25 psig (dew point < -100C)
NO/NOx Control Manual/Remote/Auto Cycle
Outputs Available TCP/IP, RS-232, Modbus, four scalable analog 0-10 V / 4-20 mA
Special Features Calculated NO2 derived from NOx converter effi ciency, auto ranging, auto calibration (adjustable through internal clock), less than 3 cc gold-plated reaction chamber
Display 3” x 5” backlit LCD
Sample Temperature Up to 50°C non-condensing
Oven Temperature 850°C
Ambient Temperature 5 to 40°C
Ambient Humidity Less than 90% RH non-condensing
Warm-up Time 1 hour (typical)
Fittings ¼-inch tube
Power Requirements 115/230 (±10%) VAC, 50/60 Hz, 200 Watts
Dimensions 5¼” H x 19” W x 23” D
Weight 45 lbs

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