California Analytical Instruments, Inc. (CAI)

Model 650 - Chemiluminescent NO/NOx & Paramagnetic Oxygen Analyzerr

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The California Analytical Model 650 NOxygen NO/NOX/NO2/O2 digital analyzer is designed around a state-of-the-art 16 bit microprocessor, with 16 digital inputs, 16 digital outputs, 16 analog inputs and 4 analog outputs. The analyzer can be manually operated from the keypad or remotely via TCP/IP, RS-232C communications and discrete inputs. The analyzer display includes screen presentation of all analyzer alarms. Four levels of password protection are provided. For precision measurements, the analyzer's accuracy is increased by entering calibration curve fit polynomials. Automatic calibrations may be activated locally or remotely or at preset times. The analyzer may also display NO, NOX, NO2, and O2 via selectable time and hold commands.

Chemiluminescent

The California Analytical Model 650 NOxygen Analyzer utilizes the principle of chemiluminescence for analyzing the NO or NOX concentration within a gaseous sample. In the NO mode, the chemiluminescent reaction occurs between ozone and nitric oxide (NO) yielding nitrogen dioxide (NO2*) and oxygen. This reaction produces light. The intensity of this light is linearly proportional to the mass flow rate of NO into the reaction chamber. The light is measured with a photodiode and associated amplification electronics. The photodiode is thermoelectrically cooled and temperature regulated. 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 chemiluminescent NO-O3 reaction is then directly proportional to the total NOX concentration. 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.

Method of Operation—O2

The California Analytical oxygen analyzer section utilizes the paramagnetic method to determine the percent level of oxygen contained in the sample gas. The oxygen level is displayed on the LCD panel in Engineering units.

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

  • Measures From 0-3 to 0-3,000 ppm Full Scale (NO/NOx)
  • Four User Definable Ranges
  • Oxygen Range: 0-25%
  • Fast Response Time
  • Auto Ranging
  • Auto Calibration
  • Output Options: Analog (User Scalable), (RS232) using AK Protocol & TCP/IP
  • Data Archiving
  • Remote Monitoring and Control
  • Electronic Proportional Pressure Control for Sample & Ozone Flow

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