California Analytical 700 Series Chemiluminescence Analyser

California Analytical CAI 700 CLD
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The California Analytical 700 Series CLD Analyzer utilizes 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 is determined as above, however, the sample is first routed through the internal NO2 to NO converter which converts the NO2 in the sample to NO. The resultant reaction is directly proportional to the total concentration of NOx.

  • Measure NO/NOx from 0 to 3,000 ppm full scale

  • Rapid response time

  • No vacuum pump required

  • Lowest CO2 quench available

  • Low-temperature vitreous carbon NOx converter – no ammonia interference

  • Auto calibration and ranging

  • Electronic proportional pressure control for sample and ozone flow

  • Output options: voltage, 4-20 mA, RS-232 using AK Protocol and TCP/IP, Modbus

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Features & Benefits

  • Measures From Low 3 ppm up to 3,000 ppm Full Scale
  • Three Measurement Modes—NO, NOx and NO/NO2/NOx
  • Auto Calibration and Ranging
  • Fast Response Time
  • Electronic Sample and Ozone Flow Control
  • Does Not Require Vacuum Pump
  • Comprehensive Diagnostics
  • Output Options: Voltage, Current, RS-232, TCP/IP, MODBUS
  • CE Mark and ETL Listed—Conforms to UL STD 61010-1, Certified to CAN/ CSA C22.2 STD No. 610610.1
  • Meets 1065 Requirements
Technical Specifications
Detector Chemiluminescence (CLD) Photodiode
NO/NOx Ranges Four User-definable from 0-3 to 0-3,000 ppm NO/NOx (Higher Ranges Available upon Request)
Oxygen Paramagnetic, 0-25%
Response Time Typically < 2 Seconds to 90% Full Scale
Repeatability Better than 0.5% of Full Scale
Linearity Better than 1% of Full Scale
Noise Less than 0.5% of Full Scale
Zero & Span Drif Less than 1% of Full Scale per 24 Hours
CO2 Effect Less than 2% with 10% CO2
Additional Interference Data CO 1000ppm – N/A
HCN 28 ppm – N/A, SO2 500 ppm – N/A
NH3 10 ppm – N/A, N2O 201 ppm – N/A
Flow Control Electronic Proportional Pressure Controller
Sample Flow Rate Typically 1.5 to 2.5 LPM (0.6 LPM with Low Flow Option)
Converter Carbon Material @ 205 C; 95 to 100% Efficiency
Ozonator Ultraviolet Lamp
Air or O2 Requirements Dry Air less than 0.01 ppm NOX at 240 cc/Min. @ 25 psig(Dew Point < -10°C
NO/NOx Control Manual/Remote/Auto Cycle (Remote NOx mode by dry contact closure)

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Sydney Office

  • Office : 5 Aspinall Place, Mulgrave, NSW 2756