WHOLE CHARACTER
量liáng, liàng
to measure length, volume or temperature with a tool; to estimate; to size up
量 has two lives: liáng to measure (测量, 量体温) and liàng an amount or a limit (数量, 力量, 质量).
ZDIC marks 量 as 形声 but the header names no visible sound piece. The modern shape writes 旦 over 里; both are shown as written pieces, not as word meanings.
TOP: THE WRITTEN 旦 SHAPE — A WRITTEN PIECE HERE
旦dàn
dawn; day
Standalone meaning is kept separate from its sound role in 但.
In 量: top: the written 旦 shape — a written piece here Shown as a written frame; not taught as the word dàn 'dawn'.
BOTTOM: THE WRITTEN 里 SHAPE — A WRITTEN PIECE HERE
里lǐ
in; inside; also a distance unit
A standalone character (in/inside; also a distance unit); when kept as a piece, its sound or visual role in that character is shown on the character's page.
In 量: bottom: the written 里 shape — a written piece here The old account ties the graph to measuring; no word meaning is claimed for the bottom piece.