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YOKOGAWA MG8G Paramagnetic Oxygen Analyzer |
YOKOGAWA MG8G Paramagnetic Oxygen Analyzer
The MG8G paramagnetic oxygen analyzer measures the concentration of oxygen based on the factthat a magnet attracts gaseous oxygen. Whereas zirconia oxygen analyzers cannot measure oxygen in flammable gas mixtures, the MG8G can measure oxygen concentration in flammable gas mixtures.
With an appropriate sampling system it can also measure oxygen in high temperature or high pressure process gas mixtures.
The sensor has a totally new architecture for its magnetic proportional flow rate system that has been developed based on our long and field-proven experience. The converter is microprocessor based, providing ease of use and high reliability.
Features
The microprocessor-based converter provides improved system reliability, enhanced / useful functionality, and ease of use.
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Easy Operation with Large Display: Analog bar graph, large digital LED display, status indication |
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One-touch calibration, Autmatic Calibration for Labor-saving |
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Multiple Self-diagnosis Functions |
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The detector uses a magnetic proportional flow rate system, a world's first. This unique technology is based on our more than 30 years experience with paramagnetic oxygen analyzers
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Reliable sensor: Long life, stable thermistor, 90% response within 3 seconds, minimum drift |
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Structure with No Movable Parts |
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Interference-gas Compensation Function: Excellent linearity and repeatability of ± 1% F.S. |
Specifications
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Measurement object |
Oxygen concentration in gaseous mixture |
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Measurement system |
Paramagnetic system |
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Measurement range |
0-5 to 0-25 vol%O2, 3 range can be programmed |
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Analog output signal |
4 to 20 mA DC (load resistance; Max. 550Ω), 0 to 1 V DC (output resistance; 50Ω) |
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Contact output |
Error Contact
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1 point, normally energized, normally deenergized.
(205 V AC 3 A, 30 V DC 3 A resistive load)
(Contact will operate if cell error, measurement unit temperature error, analog error, digital error, or memory error occurs) |
Low auxiliary gas pressure:
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3 points; 300 kPa (initial setting). Normally energized (250 V AC 3 A, 30V DC 3 A) |
Maintenance:
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1 point, normally open
(250 V AC 3 A, 30 V DC 3 A resistive load) |
Range selection answerback Hi/Lo alarm:
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2 points, normally open
(250 V AC 3 A, 30 V DC 3 A resistive load) | |
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Contact input |
2 points; remote range switching, auto calibration (Option) |
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Calibration method |
Auto calibration, manual calibration (one touch calibration) |
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Measurement gas conditiont |
Gas flow; 200 ml/min ±10%
Gas temperature; 0 to 50℃ |
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Ambient temperature |
5 to 55℃ |
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Installation |
Indoor, panel or wall mounting |
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Power supply |
100, 110, V AC ±10%, 50/60 Hz or 200, 220, 240 V AC ±10%, 50/60 Hz |
Performance
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Repeatability |
±1% F.S. |
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Linearity |
±1% F.S. |
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Response time |
90% response within 3 sec
(measured gas flow rate: 200 ml / min.) |
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Zero drift |
±1.5% F.S. / Week |
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Span drift |
±2% F.S. / Week | |
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