Yokogawa Gas Analyzers Model MG8G General Purpose Type Paramagnetic Oxygen Analyzer
The MG8G paramagnetic oxygen analyzer measures the concentration of oxygen based on the fact that 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, high pressure, high dusty, or high-humidity 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 provides ease of use and high reliability.
Yokogawa Gas Analyzers Model MG8G General Purpose Type Paramagnetic Oxygen Analyzer GENERAL
The Model MG8G Paramagnetic Oxygen Analyzer measures the concentration of oxygen based on the fact that a magnet attracts gaseous oxygen. The sensor employs a magnetic proportional flow rate system, which has been developed based on our long and field-proven experience, providing improved and advanced performance. Whereas Zirconia Oxygen Analyzers cannot measure oxygen in flammable gas mixtures, the MG8G can measure oxygen concentration in flammable gas mixtures.
The converter is microprocessor based, to provide ease of use and self-diagnostics.
It can be used together with a sampling unit to measure oxygen in high temperature, high pressure,high dusty, or high-humidity process gas mixtures.
Yokogawa Gas Analyzers Model MG8G General Purpose Type Paramagnetic Oxygen Analyzer Features
The converter provides improved system reliability, enhanced / useful functionality, and ease of use.
· Easy Operation with Large Display: Analog bar graph, large digital LED display, status indication
· One-touch calibration, Autmatic Calibration for Labor-saving
· Multiple Self-diagnosis Functions
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
· Reliable sensor: Long life, stable thermistor, 90% response within 3 seconds, minimum drift
· Structure with No Movable Parts
· Interference-gas Compensation Function: Excellent linearity and repeatability of ± 1% F.S.
Yokogawa Gas Analyzers Model MG8G General Purpose Type Paramagnetic Oxygen Analyzer Specification
| Measurement object |
Oxygen concentration in gaseous mixture |
| Measurement system |
Paramagnetic system |
| Measurement range |
0-5 to 0-25 vol%O2, 3 range can be programmed |
| Analog output signal |
4 to 20 mA DC (load resistance; Max. 550Ω) |
| Contact output |
Fail; 1 point, open or closed when error occures, user configurable
Maintenance status; 1 point, closed during maintenance
Range answerback or Hi/Lo alarm; 2 points, normally de-energized |
| Contact input |
Remote range switching, calibration start |
| Calibration method |
Automatic calibration, semiautomatic calibration, manual calibration |
| Calibration gas |
Zero gas; N2 gas
Span gas; Dry air |
| Auxiliary gas pressure |
N2 gas, 180 kPa(Approx. 35 ml/min) |
| Sample gas condition |
Gas flow; 200 ml/min ±10%
Gas temperature; 0 to 50℃
Humidity; No moisture condensation in the flow path or the sensor |
| Ambient temperature |
-5 to 55℃ |
| Installation |
Indoor, panel or wall mounting |
| Power supply |
100-115 V AC, 50/60 Hz or 200-240 V AC, 50/60 Hz |
Performance
| Repeatability |
±1% or less of F.S. |
| Linearity |
±1% or less of F.S. |
| Response time |
90% response within 3 sec
(measured gas flow rate: 200 ml/min.) |
| Zero drift |
±1.5% or less of F.S./Week |
| Span drift |
±2% or less of F.S./Week |
BASIC SYSTEM CONFIGURATION
