Toho Electronics TRM20A Operation Manual page 27

Comment：Arbitrary comments can be registered on a trend. (It supports since recorder version
1.20.)
(A comment can be set up only on a historical-trend screen. A comment is not
directly displayed on a trend screen. Refer to Section 6.8 for comment function.)
Scale：The scale can temporarily be changed.
It will be reset if a power source is turned OFF.
※
Event display area
⑨
Event information such as beginning to record is displayed.
Event flag display area
⑩
The time when warning has been generated belt is red; the time when the event of the message etc.
has been generated belt is displayed in green.
SD card loading / writing status display
⑪
It indicates the loading state of the SD card.
Gray display：shows the state where the SD card is not loaded in the slot.
When the SD card becomes removable even if the SD card is installed, it
becomes a gray display.
Aqua display：shows the state where the SD card is loaded in the slot.
Red display：shows the state where the SD card is written.
Memory remainder capacity display
⑫
When the SD card is installed, the remainder capacity for which the SD card can be used is
displayed by percent.
When the SD card is non-installed, the remainder capacity for which an internal memory can be
used is displayed by percent.
Main record display
⑬
It indicates the state of the main record.
Green display：shows the state where the main record is not started.
Red display：shows the state where the main record is started.
Sub record display
⑭
It indicates the state of the sub record.
Green display：shows the state where the sub record is not started.
Red display：shows the state where the sub record is started.
Internal memory
⑮
It indicates the state of the internal memory.
Aqua display：shows the state where the internal memory is not access.
Red display：shows the state where the internal memory is access.
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