10
VI. Operating principle
When measured gas into the sensor sampling chamber, the trace
moisture in the gas is adsorbed to the sensor, the sensor converts the change
into electrical signal, to be processed by the microprocessor, and finally display
on the LCD screen.
The device is composed of the gas path section, the sensor section, the
signal processing section and the liquid crystal display output section.
Operating schematic diagram as shown in Figure 3
Figure 3 operating schematic diagram
VII. Operational approach
1. LCD display description
The instrument adopts the 4.7-inch high-resolution color touch LCD
display; it can also be clearly displayed even in strong sunlight. Click on touch
screen button to complete the parameter setting, data storage and other
operations, the test results are displayed on the LCD screen. Graphics clear,
beautiful, easy to operate.
2. Connect to SF6 devices
Gas inlet
Flowmeter
Sensor
Gas outlet
AD conversion
Signal amplification
Time clock
Save
Communication
LCD display
Touch button
