1. General Introduction
Yokogawa MG8G paramagnetic oxygen analyzer measures the concentration of oxygen based on the fact that a magnet attracts gaseous oxygen, 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.
2.General Specification
Main Characters | Description |
Measurement object | Oxygen concentration in gaseous mixture |
Measurement system | Paramagnetic system |
Measurement range | 0-1 to 0-25 vol%O2, 3 ranges can be programmed. |
Analog output signal | 4 to 20mA DC (load resistance: Max. 550 Ω) |
Contact output | Fail; 1 point, open or closed when error occurs, user configurable. Low auxiliary gas pressure alarm; 1 point, open or closed when error occurs, 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 |
Sample Gas Condition | Gas flow; 300 to 800 ml/min. ±10% of a set value (Standard 600 ml/min) |
Auxiliary Gas | N2 gas, Pressure; 350 to 500kPa |
Calibration Method | Automatic calibration, Semiautomatic calibration, Manual calibration |
Calibration gas | Zero gas; N2 gas; Span gas; Dry air |
Auxiliary gas pressure | N2 gas, 350 to 500kPa (Approx. 35 ml/min) |
Ambient temperature | -5 to 50℃ |
Installation | Indoor, panel or wall mounting |
Structure | Flameproof (Ex d IIBT4X) |
Power supply | 90 to 127 V AC, 48 to 63 Hz, 50 or 60 Hz |
3.Model Selection
Model | Suffix Codes | Description | ||||||
MG8E | Paramagnetic oxygen analyzer | |||||||
Measurement range | -1 | 0 - 1 to 25vol% O2 | ||||||
-2 | 0 - 2 to 25vol% O2 | |||||||
-5 | 0 - 5 to 25vol% O2 | |||||||
Cell material | A | Standard | ||||||
B | Organic solvent resistant | |||||||
Auxiliary gas | W | N2 gas | ||||||
Flow rate of auxiliary gas | N | Standard (35 ml /min) | ||||||
H | 55ml/min, when measurement gas contains H2 gas of 3% or greater and O2 in He | |||||||
Power supply | 5 | 100 - 115V AC, 50 / 60 Hz | ||||||
Language | -J | Japanese | ||||||
-E | English | |||||||
Option | /B1 | Balance gas: CO2 (20%)+N2 | ||||||
/EG | KOSHA approved model | |||||||
4.Basic System Configuration
5.External Dimensions
