YOKOGAWA MG8G, User Manual, Page: 10 / 63

<1. OVERVIEW>
1-1
IM 11P03A03-01E 6th Edition : Jan. 26, 2022-00
1. OVERVIEW
This oxygen analyzer integrates a detector and a converter into one unit to continuously measure
the concentration of the oxygen in a sample gas.
The analyzing cell is almost free from the effects of co-existent gas, is highly sensitive, and has
a superior response. The detector is constructed to withstand vibration and mechanical shock
within the limits of current technology.
The converter has a large, easy-to-read digital display unit that displays oxygen concentration,
cell output voltage, constant chamber-temperature, etc. Analog output is electrically isolated
between the input and output sections.
Further, the instrument is provided with one-touch calibration and self-test functions to improve
operability, maintainability and reliability.
n
Standard System Configuration
The standard system configuration of the MG8G paramagnetic oxygen analyzer is shown in
Figure 1.1. The system configuration that includes an automatic calibration option is shown in
Figure 1.1.
P
Model MG8G
Atmosphere vent
Analog output
Contact output
Contact input
Power supply
Sampling gas
Auxiliary gas
Filter
Flow meter
Flow control valve
Pressure
regulator
Pressure
gauge
F2.1E.ai
Zero gas
Span gas
Figure 1.1 System Configuration Diagram
NOTE
Auxiliary gas (N
2
gas) is required in accordance with the measurement principle of the
instrument. Before supplying power to the instrument, be sure to introduce the auxiliary gas.