| 摘要 |
This invention provides an apparatus for adjusting the scale and range of D'Arsonval pointer-type meters providing an uncluttered accurate readout particularly adapted for compact hand-held meters. Display wheels imprinted with numerals for a plurality of different scales are provided enabling the user to set, by manual rotation of a drive gear engaging a ring gear one of a plurality of desired ranges. The invention also provides for the simultaneous automatic selection or interconnection of circuit elements for driving the meter movement in accordance with the selected range.
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