Enviro Technology Services Ltd

- Model 600 Series - Chemiluminescent NO/NOx Digital Analyzer



The California Analytical Instruments Model 600 CLD NO/NOx digital analyser is designed around a state-of-the-art 16-bit microprocessor. The 16 bit microprocessor control board consists of the MSR-Card with 16 digital inputs, 16 digital outputs, 16 analog inputs and 4 analog outputs. The analyser can be manually operated from the keypad or remotely via TCP/IP, RS-232C communications and discrete inputs. The  analyser display includes screen presentation of all analyser alarms. Four levels of password protection are provided. For precision measurements, the analyser's accuracy is increased by  entering calibration curve fit polynomials. Automatic calibration may be activated locally or  remotely and includes auto cal via preset times.

The California Analytical Model 600 CLD Analyser utilizes the principle of chemiluminescence for analysing 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 rateof 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 then directly proportional to the total concentration of NOx. Local operation is simplified using the 20 button alphanumeric keypad with data presented on a back lit LCD display. All local operations may be performed remote via RS-232 and/or TCP/IP.

  • Measures from 0-3 to 0-3,000 ppm Full Scale (NO/NOx)
  • CE Mark and ETL Listed—Conforms to UL STD 61010-1, Certified to CAN/CSA C22.2 STD 61010.1
  • Auto Calibration and Ranging
  • Fast Response Time
  • Electronic Sample and Ozone Flow Control
  • Comprehensive Diagnostics
  • Output Options: Voltage, Current, RS-232, TCP/IP
  • Remote Monitoring and Control
  • Does Not Require Vacuum Pump
  • Data Archiving

  • Stack Gases (CEM)
  • Scrubber Efficiency
  • Combustion Efficiency
  • Turbine/Generator Feedback Control
  • Process Chemical Gas Analysis
  • Personnel Safety
  • Power Plant De-Nitrification
  • Fuel Cell Analysis
  • Vehicle Emissions

  • Internal Zero/Span Solenoid Valves
  • 19 Inch Rack Mount Slides
  • Internal Sample Pump
  • High Output Ozone Lamp
  • Internal Ozone Pump

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