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CGA351 Zirconium Oxide Oxygen Analyzer

CGA351 Zirconium Oxide Oxygen Analyzer

 

Measures from 0.1 ppm to 100 Percent

 

The Series 351 zirconia oxygen analyzer is suitable for monitoring and controlling any variable gas stream or atmosphere that is clean and dry. Typical uses include oxygen-enriched air feed to furnaces, combustivity index of blended fuel gases and oxygen content during heat bonding of plastics.

The Series 350 zirconia oxygen analyzer measures oxygen from 0.1 ppm to 100 percent and in high-temperature reducing atmospheres, the sensor measurement indicates the amount of oxygen and moisture existing in chemical equilibrium. The instrument provides fast response—90 percent of a step change in less than one second. Additionally, measurement accuracy increases at low oxygen concentration.

This analyzer features extremely stable sensor operation. Calibration checks or adjustments are seldom required, thus ensuring many months of trouble-free operation. When calibration checks are required, a one-point calibration is sufficient for the entire measurement range from ppm to percent oxygen.

Features

  • Measures oxygen from 0.1 ppm to 100 percent in gases
  • Accuracy increases at low oxygen concentrations
  • Fast response: 90 percent of step change in 1 second

 

Applications

Trace O2 Applications

This full-featured oxygen analyzer is typically used in applications such as:

• Air separation plants

• Glove boxes

• Semiconductor manufacturing processes

• Heat treat and metallurgical processes

• Glass and ceramic research

• Inert gas purity

• Blanket gas monitoring

• Medical research

• Gas blending

 

Special Applications

• Welding atmospheres

• Gas generators

• Air/fuel mixtures

Specifications

Performance

Accuracy 0.2 ppm from 0 to 10 ppm or ±2% of reading
Repeatability ±1% of reading
Response Time Less than 2 seconds for 90% step change
Stability Less than 3% of reading per year
Pressure Effect Less than 0.2% of reading per mm Hg
Sample Flow Rate Influence Sample Flow Rate Influence Per 40 cc/min flow change at 400 cc/min 0.2 ppm from 0 to 10 ppm or 2% of reading
Background Gas Variation Effect Sample gas must be clean, dry and free of combustibles. For best results used same background gas for calibration. Standard factory calibration is 5 ppm O2 in N2.

Operating

Measurement Range
  • Standard factory setup is 0 to 10 ppm for 4 to 20 mA output. Field selectable for any portion of the range from 0.1 to 10 ppm O2
  • 0.1 ppm to 100% O2
  • The digital panel meter is software-configurable to display the following parameters: – Oxygen (ppm or %) – Temperature (°F or °C) – Sensor (mV) – CJC temperature (°F or °C) • Field selection of autorange
Output Ranges 0/4 to 20 mA, 0 to 2 V

Zirconia
Alarm Circuits
  • Dual alarm contacts
  • Contact rating 2 A, 28 VDC, SPDT, fail-safe
Communications Standard RS232 serial port, PanaViewTM read only
Sample Requirements
  • Sample flow: 400 cc/min (± 40 cc/min recommended)
  • Sample inlet pressure: 1 to 10 psig
  • Sample outlet (vent) pressure: 1 atmosphere
Ambient Requirements
  • Relative humidity: 90% maximum
  • Temperature range: -13°F to 122°F (-25°C to 50°C)
Power 100/115/220/240 VAC, 50 to 60 Hz, 250 W maximum
Line-Voltage Influence ±10% nominal line voltage
Fuse 3 A, 250 V, antisurge, 5 x 20 mm
Materials Contacting Sample Gas 316 stainless steel, ceramic and platinum
Connections
  • Sample inlet and outlet: 6 mm compression or ¼ in compression tube fitting
  •  Electrical analyzer and D/O unit: 1/2 inch conduit
Dimensions
  • Sensor enclosure: 7.0 in x 11.0 in (178 mm x 279 mm)
  • Electronics enclosure: 6.75 in x 8.0 in (171 mm x 203 mm)
Warm-Up Time
  • 45 minutes nominal
  • Calibration at alarm or control level with certified mixtures of O2 in N2
European Compliance Complies with EMC Directive 89/336/EEC, 73/23/EEC LVD (Installation Category II, Pollution Degree 2)

Order Information

Zirconia2
Zirconia3

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Descriptions English Français Deutsch Italiano Português
CGA 351 Analisador de oxigênio de óxido de zircônio da Panametrics acrobat-reader
CGA351 Operating Manual acrobat-reader
CGA351 Zirconia Oxygen Analyzer Brochure acrobat-reader acrobat-reader acrobat-reader
Gas Analysis Solutions product guide acrobat-reader acrobat-reader


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