MG8G Paramagnetic Oxygen Analyzer

Model MG8G
Paramagnetic Oxygen Analyzer (General Purpose Type)

Product Information

Paramagnetic Oxygen Analyzer (General Purpose Type) Model MG8G

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.

Bulletin for MG8G

General Specification for MG8G

User's Manual for MG8G

Selection Guide for Oxygen Analyzer

Features

The microprocessor-based 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.

Specifications

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), 0 to 1 V DC (output resistance; 50Ω)

Contact output

Error Contact

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:

3 points; 300 kPa (initial setting). Normally energized (250 V AC 3 A, 30V DC 3 A)

Maintenance:

1 point, normally open
(250 V AC 3 A, 30 V DC 3 A resistive load)

Range selection answerback Hi/Lo alarm:

2 points, normally open
(250 V AC 3 A, 30 V DC 3 A resistive load)

Contact input

2 points; remote range switching, auto calibration (Option)

Calibration method

Auto calibration, manual calibration (one touch calibration)

Measurement gas conditiont

Gas flow; 200 ml/min ±10%
Gas temperature; 0 to 50℃

Ambient temperature

5 to 55℃

Installation

Indoor, panel or wall mounting

Power supply

100, 110, V AC ±10%, 50/60 Hz or 200, 220, 240 V AC ±10%, 50/60 Hz

Performance

Repeatability	±1% F.S.
Linearity	±1% F.S.
Response time	90% response within 3 sec (measured gas flow rate: 200 ml / min.)
Zero drift	±1.5% F.S. / Week
Span drift	±2% F.S. / Week