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7.1 Names and Functions of Display and Controls
Display
Operation switch
(Infrared switch)
Figure 7.2 Display and Controls
LCD display
A 16-character × 2-line liquid crystal display with backlight is used.
Instantaneous flow rate and total flow, and various constants such as parameters can be displayed.
In addition, the backlight is always lit and data can be read clearly even in a dark place.
Operation switch (infrared switch)
Operation switches are infrared switches and the operation can be carried out without opening the
housing cover and operable also with the cover opened.